Wireless remote meter reading monitoring system scheme

Abstract: The solution information of wireless remote meter reading monitoring system is provided to you by excellent flowmeter and flowmeter manufacturers. 1. Development Background With the development of wireless communication digital network, wireless remote automatic meter reading has become an inevitable trend of development, and its application field is extremely broad. At present, the distribution points of each substation are wide and wide, and most of its remote meter reading still use the wired transmission method. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following are the details of the article on the wireless remote meter reading monitoring system. 1. Development Background With the development of wireless communication digital network, wireless remote automatic meter reading has become an inevitable trend of development, and its application field is extremely broad. At present, the distribution points of each substation are wide and wide, and most of its remote meter reading still use the wired transmission method, and the line maintenance is very large. In order to ensure the transmission quality, if the dedicated line is used, the investment cost is too high; if it is shared with the power dispatching line of the substation, conflicts often occur during communication, which not only affects the transmission of data, but also interferes with the normal work of the ESC department. And this method also has a certain impact on the normal and stable operation of the program-controlled switchboard in the communication department. Using the communication mode of GPRS/CDMA/GSM wireless digital network, the bottleneck problem of remote meter reading and data transmission routing is well resolved. 2. System introduction Shenzhen Yitian Technology has developed and utilized GPRS/CDMA/GSM wireless Internet data transmission service business, and independently developed a wireless remote meter reading monitoring system, which is connected by the metering point (substation, station area change, gateway meter, etc.) It is composed of a data processing center on the server side, and the metering point terminal includes a data collector and a GPRS/CDMA/GSM wireless centralized meter reading terminal. The data processing center processes the collected meter reading monitoring data and alarm information, and stores them in a large database server. Query browsing. In the automatic meter reading system, the metering point terminal automatically performs a series of meter reading and reporting work such as timing meter reading, storage, and timing reporting; at the same time, it can also respond in time to the real-time meter reading command from the center; High-precision acquisition of table data. The data collected at the substation end at the metering point mainly includes electrical energy information: such as the peak, valley, level, peak power, maximum demand, power and power factor at the bottom of the meter; Event information such as electricity, voltage loss, and current loss. The bottom data of the electric energy meter and the amount of electricity recorded by the system can be used as the basis for electricity bill settlement, and can be directly used to calculate electricity bills, calculate the management of bus power balance and line loss analysis, and can be used for load forecasting in the electricity market. According to the recorded event information, the system can provide power supply reliability statistics (power failure records) and voltage qualification rate monitoring functions. In the case that the automation system of the power supply bureau meets the requirements, the meter reading terminal can also receive the switch signal of the automation system to automatically replace the bypass. The marketing management information system, MIS and load control system are networked to further improve the overall management level of power supply marketing and operation. 3. Scope of application The system is suitable for all kinds of electric energy metering points (substations, station district transformers, gateway meters, large users, etc.). 4. Benefit analysis to reduce operating costs: save a lot of paper, food and travel expenses, car fares and vehicle wear and tear. Detecting abnormal measurement in time, deal with it in time, and recover the investment in half a year, with obvious benefits: Since the load of the outlet lines in the substation is generally relatively large, the application of this wireless remote meter reading system can timely detect abnormal conditions in the electric energy measurement, such as the inaccuracy of the electric energy meter Or damage, power theft and other problems, greatly shorten the time to find and deal with abnormalities, and minimize losses. According to the previous experience in dealing with such problems, it is expected that the full investment can be recovered within six months. The wireless remote meter reading data is also of great significance to the real-time analysis of the load of each line by the ESC department. 5. System composition Data acquisition: completed by the meter reading terminal, with an independent RS485 interface, supporting a variety of meter reading communication protocols; data transmission: using China Mobile's GPRS/CDMA/GSM wireless digital network as a channel, the communication protocol is TCP/ IP, UDP; data processing: completed by the data processing center, which includes data processing server, broadband access or private APN access equipment, etc.; data browsing: the data processing center provides two browsing methods of mobile phone and computer. 6. System characteristics of GPRS/CDMA/GSM data transmission scheme The system uses GPRS/CDMA/GSM Internet data transmission as the communication mode; a complete TCP/IP protocol suite is embedded, including TCP, UDP, FTP, PPP, NET , HTTP, WebServer, SMTP, Pop3, etc. The communication rate is 300bps~115200bps; using GSM/GPRS/CDMA/GSM wireless communication network, there is no need for line investment and maintenance costs; equipment installation is convenient,The amount of construction work is small; the operating cost is fixed: according to the existing monthly subscription model (for example, China Mobile can provide the power supply bureau with a fixed monthly fee of 15-25 yuan for GSM); GPRS/CDMA/GSM services are due to their wide coverage and communication reliability. High, economical to use, especially suitable for automatic meter reading monitoring system.

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