In today's industrial society with tight energy sources, timely and accurate access to the user's power load information, and timely control scheduling based on this has important practical significance for improving energy consumption. Traditional electricity billing relies on manual data to be copied to the site on a regular basis. There are many shortcomings in real-time, accuracy and applicability. The application of automatic meter reading terminals based on single-chip microcomputer and ARM 7 platform has become a trend. However, due to the low data processing rate of the single chip microcomputer and the lack of the storage management unit of the ARM7, it is difficult to meet the refinement requirements of the power system for load control.
Based on the demand of Chongqing's power sector, based on the research and development of the existing power negative management system, this paper proposes a design scheme of power negative management system based on ARM9 and GPRS. The system uses the high acquisition rate and strong processing capability of the ARM9 microprocessor to improve the accuracy of the system. The Linux 2.6 operating system with preemptive kernel mechanism improves the real-time response speed of the system. The broadband GPRS network is used. Wireless transmission and real-time monitoring of electrical information.
1 The overall framework of the negative control management system and its working principle
The negative control management system is essentially a communication system that integrates energy meter data into one with advanced measurement and control, communication and computer technology. The system designed in this paper consists of a power meter installed at the user end, a negative control management terminal of the user community, and a remote management main station of the power department. Its topology is shown in Figure 1.
The user electric energy meter and the negative control management terminal communicate through the RS 485 bus, and the negative control management terminal reads the user electric energy meter data through the RS 485 bus, and the data is delivered to the corresponding module and packaged into an IP packet and sent to the GPRS network, the GPRS network and the Internet network. To achieve seamless connection, the primary station receives the energy meter data collected by the terminal through the RS 485 interface through the Internet, then displays, analyzes, and stores the energy meter data, and then sends a remote control command to the negative management terminal according to the analysis result (hardware Reset, set various communication parameters, disconnection detection, overload alarm and other functions). In this way, the remote monitoring and negative management terminal is realized, and the energy meter is monitored by the negative control management terminal.
With the development of the times, the consumption level of people is gradually increasing. At the same time, people's entertainment methods are beginning to diversify, especially for modern young people. As a result, different kinds of electronic products are starting to be in people's lives, and the booming Electronic Cigarette industry reflects this.
Described including the upper shell, the upper shell at the top of the smoke outlet, as described in the bottom of the upper shell with airway, described with the smoke outlet in the airway and also to match the upper shell, the lower part of the shell described the airway in the direction of the lower shell extension, as described in the lower shell near one end of the upper shell is equipped with oil mouth, described the lower shell with batteries, described at the bottom of the bottom shell has come in The air port is provided with an oil storage bin in the lower shell, and the air passage passes through the oil storage bin and is provided with a heating atomization bin at one end away from the smoke outlet. The utility model has beneficial effects: it can meet the smoking habit of different users, avoid the premature end of the use experience caused by excessive consumption of smoke oil, and indirectly prolong the service time and life of the product.
Refillable E-Cig Oem,Refillable Vape Pod,Refillable Vape Pen Oem,Refillable Mod Oem
Shenzhen MASON VAP Technology Co., Ltd. , https://www.e-cigarettefactory.com