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Home > News > News

Internet of things of the meter reading scheme in Wireless Ad Hoc

Date:2012-01-17Clicks:1324

At present the country promote the strategic transformation of industrial planning, management and utilization of energy also becomes more and more important, and included in the national key projects, at the same time change, with high labor costs rise and the country put forward the mode of economic growth for the collection and management of intelligent water meter, put forward higher requirements of gas meter into the Internet of things, realize intelligent management effectively has become an inevitable!


Shenzhen anmeitong Technology Co., Ltd. has a history of 6 years in the meter collection and management, have a good cooperation relationship with major meter factory, with rich experience in this field. This paper will introdu. This paper will introduce the wireless meter reading mode, and a newly developed ad hoc mode of meter reading.


The current meter wireless collecting mainly has the following three kinds of schemes: A: acquisition mode reading B: manual machine model C: wireless ad hoc network meter reading meter reading mode of these three methods has its advantages and disadvantages, along with the development and progress of the chip and the network technology, wireless ad hoc network model of reading. Gradually become the mainstream of the development of the now.


1) acquisition mode of reading:


Collector mode of meter reading, strategy is composed of module timing upload data collector (such as 20 minutes at a time). The collector passive receiving and packaged data will be uploaded via GPRS. This way the module end generally only need timing can be launched, no need to receive, the power consumption of the module is easy to control, the software is also simple, can realize the automatic meter reading. Because it is one-way, this way is not by the order from the collector to the module, of course, there are also individual manufacturers to adopt the transceiver module, the module timing emission after waiting for tens to hundreds of milliseconds to receive a collector issued orders, but the method is different from the unidirectional transmission, must be installed collector management which modules address, so as to increase the complexity of construction. At the same time the module address collector management have set good, can not be like the mode of single don't distinguish between collector module address, as long as it is within the network module collector can upload data.


Meter reading collector mode, the biggest problem is the communication distance and reliability, because it is a star network, only the primary route, the distance is a collector and module of point to point communication distance, so the receiving environment is poor communication module may not, the solution is to increase the collector or increased repeater, which in turn increases the system cost and the complex degree. This way there is a problem, is reliability, installation and commissioning of the normal system in construction, reading effect is better, with the time change of weather and environment, the network topology changes, there may be other modules from a network, measured after a half year, generally from a network module achieves above 5%. In addition, cannot match the manual machine meter reading, copying by hand machine only and collectors of communication, is also one of its shortcomings.


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