International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 AN online RFID and Zigbee based Manufacturing Monitoring system using ARM7 micro controller Srinath kakumanu#1, Sandeep Kota*2 1 PGResearch scholar, Dept. of ECM. K.L.University, A.P, India,srinath.kakumanu@gmail.com 2 Assistant Professor, Dept. of ECM. K.L.University, A.P, India, sanddep2489@kluniversity.in Abstract— generally monitoring the production in enterprises by humans is unable to meet the expectations. To improve the efficiency and accuracy and also improve the management efficiency “AN online RFID and Zigbee based Manufacturing Monitoring system using ARM7 micro controller” is a good approach. The main aim of this concept is to monitoring the product in various manufacturing systems and also to obtain the real-time status and data of the various manufacturing systems located in different nodes. In this we are interfacing a controller with both zigbee and rfid readers and this is called as a node, this node is placed in a location, in the same way these nodes are placed in different places and these nodes had different addresses. A master node is connected to PC (with internet connection). Now when the reader reads a rfid tag then it sends a data to the master node then master node perform some logical operations and update that to PC then the software in the PC(which is developed in .net) update the same to a website. to reliably and safely move parts across the facilities for processing while improving the transportation utilization, saving space, shortening setup time, or reducing overall material handling cost[4]. Another reason for using CLMSs in practice is to improve the product quality and yield by allowing product rework loop at some re-entrant points. Keywords— Rfid; ZigBee; Monitoring Manufacturing System; GSM modem I. INTRODUCTION To increase the productivity of a firm, the most basic and important requirement is to obtain the real-time status and data of the various manufacturing systems in the enterprise. [1]RFID monitoring devices can serve as the data collection system and the ZigBee wireless network can serve as the communication system to transmit the data to different levels of the enterprise management. From the perspective of system automatic control, the RFID and ZigBee monitoring system serves as the feedback link so as to achieve the close-loop control and management of the enterprise. As shown in Figure1. Closed Loop Manufacturing Systems (CLMSs) are extensively used in various industrial environments, and their performance is impacted by multiple factors such as the total capacity of pallets, the actual number of pallets in the system, the pallet index speed, and the loading/unloading positions, etc. These factors make the accurate analysis and optimization of complex CLMSs in practice very difficult and challenging. Closed Loop Manufacturing systems (CLMSs) are widely observed in various industries such as automobile manufacturing, semiconductor fabrication and electronic appliance assembly. The purpose of using closed loop material handling systems is ISSN: 2231-5381 [4]Figure 1. Close-loop Control Model of the Manufacturing System RFID and ZigBee based wireless sensor monitoring system can provide enterprise managers with the real-time production Status of the enterprise, which include the detailed information of each product, processes, the products’ current locations, attendance of the workers, equipment and so on, so that the managers can make better analysis and optimization. Because it is a wireless system, the need for wiring and other issues can be got rid of. Of course, there is no universal technology, RFID and ZigBee based wireless sensor monitoring system has its own weaknesses when it is used in a large quantity. For example, the anti-jamming capability in complex or extreme environments and so on may cause problems. There are some successful cases by using RFID and ZigBee based wireless sensor monitoring systems. According to the retail analyst from the company of Sanford C. Bernstein, Wal-Mart can save 8.35 billion dollars per year owing to RFID [1]. Most of the money is saved because there is no need for workers to check the bar code any more. There is http://www.ijettjournal.org Page 1467 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 no doubt that RFID is helpful in solving the two difficulties in retail business: One is being out of stock due to supply chain disturbed, and the other is the loss of the products due to thefts. Just because of the theft, Wal-Mart has a loss about 2 billion dollars every year. II. RFID AND ZIGBEE IN THE MANUFACTURING MONITORING SYSTEM A. Data Transmission Requirements The collection and transmission of information are equally important. The system as a whole can do a good job only if the sensors and the appropriate wireless information transmission network match each other well. In the traditional sensor monitoring system, the data are transmitted through the cable network. [1]The cable network does have some advantages, such as a higher transfer rate, stronger antijamming capability, etc. However, for a monitoring system in some special or complex situations, the power lines or the communication lines could be a constraint and they may severely restrict the range that the wired sensors can reach. In some cases such as when there is a large quantity of sensors or the monitoring targets should always be moving around (for instance various kinds of vehicles), wiring becomes very complex or even infeasible. The ZigBee technology, however, can easily solve this problem. B. RFID RFID (Radio Frequency Identification) is a non-contact automatic identification technology, whose basic principle is to use the space coupling (inductive or electromagnetic coupling) of the radio frequency signal or the reflective transmission characteristics to achieve the automatic identification of objects (tags) and the information’s input or output. • Classified by the working frequencies, there are low frequency tags (30 kHz ~ 300 kHz), high frequency tags (3MHz ~ 30MHz), ultra-high frequency tags (300MHz ~ 3GHz) and microwave frequency tags (>3GHz). • Classified by the encapsulations, there are credit card tags, line tags, paper-like tags, special-purpose tags and so on. The reader is a device to read or write the data on the tags. Just like the radio, if a reader is to work, it has to be under the same frequency with the tags. There are also some different ways of classification for the readers: Classified by the working principles: there are mainly inductive coupling readers and electromagnetic backscatter coupling readers. Classified by the different sequences in time: some are full duplex, some are half duplex and some are controlled by special SEQ system. Classified by the fixations: some are fixed on the ground, some are handheld and some are attached on the moving objects. C. ZigBee ZigBee and ZigBee PRO networks are composed of several device types: ZigBee Coordinator, ZigBee Routers and ZigBee End Devices. Coordinators control the formation and security of networks. [6]Routers extend the range of networks. End devices perform specific sensing or control functions. Manufacturers often create devices that perform multiple functions, for example a device controls a light fixture and also routes messages to the rest of the network. Figure 3. A Simple ZigBee Network [3]Figure 2. A Simple RFID System An RFID system can be divided into at least two types of components – the tag and the reader, as shown in Figure 2. he tag is the data carrier in the RFID system. It consists of an antenna and a chip specially designed for tags. There are many ways to classify the different kinds of tags: • Classified by the power supply modes, there are active tags, passive tags and semi-passive tags. Active tags have batteries in them but the passive ones do not. ISSN: 2231-5381 http://www.ijettjournal.org Page 1468 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 This graphic illustrates an example ZigBee topology that includes one coordinator, five routing devices, two end devices creating a control network and an optional combination coordinator/gateway providing access to the Internet for more control flexibility. An example network in a smart home, the coordinator may be a home theater control system with advanced support for lighting and security. Devices such as light fixtures, thermostats and air conditioners could be configured as routing devices. Simple devices such as light switches and security sensors could be end devices. A simple ZigBee network is shown in Figure 3. D. Applications of RFID and ZigBee [5] Current and proposed uses of RFID span a wide spectrum of application areas, and a fully comprehensive overview would [2] certainly surpass the limits of this paper. RFID is an efficient approach to overcome the shortcomings like unavailability, uncertainty and mismatching of traditional manufacturing information tracking modes. It is, however, easy to see that the nature of a given use of RFID can be put in either one of three groups: 1. 2. 3. Item instance or item class identification, Location identification, Data transfer from or to the RFID tag Application layer Management Interface Transmission layer WIFI BLUETOOT ZIGBEE Monitoring layer Barcode Applications of Zigbee Technology is not limited to a certain level but because of being cost-effective, low-power battery and wireless connectivity, this Zigbee technology is used in almost every appliance if not in all. Zigbee technology is programmed in a chip form and is used in many devices to function automatically. [5]For controlling and monitoring a whole factory unit while sitting in one cabin is possible by using Zigbee technology. It centralizes all the units in one place and enables the remote monitoring. In a similar way, a home can be centralized by increasing the security aspect. Many small equipments are coming with embedded Zigbee technology chips and really works like a miracle. Zigbee technology is swiftly prevail the market by introducing devices like smoke and heat sensor, medical and scientific equipments, control units of home and industry and wireless communication devices. The revolutionize turn in the field of technology with the introduction of zigbee technology; the near future of Zigbee technology will prevail in almost every walk of life. III. ARCHITECTURE OF RFID AND ZIGBEE BASED MONITORING SYSTEM A complete manufacturing enterprise can be divided into different layers. [1]Different layers do different kinds of jobs. ISSN: 2231-5381 The enterprise can function well and efficiently only if every layer can do a good job and different layers can match each other well. In the RFID and ZigBee based manufacturing monitoring system of an enterprise, all the software and hardware can be divided into four layers: manufacturing layer, monitoring layer, transmission layer and application layer, as shown in Figure 4.The connections between the components in the RFID and ZigBee based monitoring system is shown in Figure 5. RFID Manufacturing layer m/c 1 m/c2 Figure 4. Architecture of RFID and ZigBee Based Monitoring System RFID tag RFID reader Power supply Micro controller Pc with internet GSM Module Zigbe e Figure 5. Block diagram of RFID and ZigBee in the Monitoring System http://www.ijettjournal.org Page 1469 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 IV. CONCLUSIONS By using AN online RFID and Zigbee based Manufacturing Monitoring system using ARM7 micro controller we can easily track and trace the products and also to obtain the real-time status and data of the various manufacturing systems located in different node. It brings the efficiency and accuracy to the enterprise. The data in the pc to be update to website through software. By adding GSM modem we are getting sms alerts. A. The manufacturing layer The Manufacturing layer includes parts, products, machines, vehicles and workers etc. It can monitor manufacturing status, the production, the locations and other information of the parts, machines, vehicles and workload of each worker. In RFID and Zigbee based manufacturing monitoring system, every object must have a RFID tag on it to be checked. The manufacturing system can differentiate different objects because of unique ID of each tag. Therefore before using system, we have to ACKNOWLEDGMENT provide the information between objects and tags into system The work on this paper was supported by K.L.University, and write some data into tags. under a research work. The views and conclusions contained herein are those of the authors and should not be interpreted as B. The Monitoring Layer The monitoring layer is the core of RFID and Zigbee based necessarily representing the official policies, either expressed manufacturing system. The information in nearby tags is or implied. collected by using readers located differently. The readers can REFERENCES read the data on tags and transfer the data to end user devices we can get distance between tag and reader by detecting signal of a tag with increase in quantity of the readers the positioning [1] “RFID and ZigBee Based Manufacturing Monitoring System” Qiang accuracy also increases. The accuracy reaches a centimetre’s Ruan, Wensheng Xu, Gaoxiang Wang School of Mechanical, Electronic and Control Engineering Beijing Jiaotong University level with the usage of high-end RFID devices. These readers Beijing, China IEEE 2011. read the tags as well as write to the tags while writing to tags [2] “A RFID-based real-time manufacturing information monitoring information is recorded. We can know which processes are system” Dai-quan Yu1,a, Kang-qu Zhou,2,b, Chuan-ming Lia,3,a,b* done and which are not with RFID readers with greatest 1Chongqing Automobile College, Chongqing University of Technology, Chongqing, 400054, China IEIT Proceedings Vol. 3 (2012) easiness. C. The Transmission Layer This layer aims at transmitting the monitored data to end user devices in order to have further processes. We choose the ZigBee technology is used here as a transmitting media. Its features decide that ZigBee suits the environment in the workshop very well. There are mainly two ZigBee network topological structures used in this project. Different structures are used according to different environments and requirements. The Zigbee nodes can receive and transmit the data from RFID devices to the end User and some nodes with gateways can be also used as a repeater, which can make the communication relay to spread the information much farther [3] [4] [5] [6] pp 14-19 © (2011) “Guidelines for Securing Radio Frequency Identification (Rfid) Systems” Computer Security Division Information Technology Laboratory National Institute of Standards and Technology Gaithersburg, MD 20899-8930 April 2007. “Modeling and Analysis of Closed Loop Manufacturing Systems Using Parameter Coupling” sheng yang*, Robert bRiggs and s. Jack hu department of mechanical engineering, the university of Michigan, Ann arbor, mi 48109, USA. “The Rfid Technology And Its Current Applications” Elisabeth ILIEZUDOR1, Zsolt KEMÉNY2, Péter EGRI3, László MONOSTORI4 14Computer and Automation Research Institute, Hungarian Academy of Sciences Kende u. 13–17, 1111, Budapest 4Department of Production Informatics, Management and Control, BME Hungary MITIP 2006. www.google.co.in [1]. D. The Interface Layer This layer is aim at the connections between end-user devices and the ZigBee devices, and the way the end-user devices read the monitored data. So-called end-user devices are monitoring computers for the workshop, or the automatic controlling and alarming devices. This is not complex because the RFID devices provide the universal series interfaces such as the most common Universal Series Bus (USB). As the ZigBee protocol is open so we can read from the ZigBee chip directly in C++ or some other languages, and there are template codes available, so mastering the interface technology is not so difficult even for non-professional users. ISSN: 2231-5381 http://www.ijettjournal.org Page 1470