The invention discloses a wireless meter-reading system for an intelligent electricity-larceny-prevention electric meter of a smart home based on a 3G network, and the objective of the invention lies in providing the system which is higher in reliability and instantaneity. The system comprises an intelligent electric meter, an MSP430F149 microprocessor, a Si4432 module, a concentrator, and a central processor. The intelligent electric meter comprises a metering module, a microprocessor, a signal encryption module, and a signal output module, wherein the metering module, the microprocessor, the signal encryption module and the signal output module are sequentially connected electrically. The signal output module is electrically connected with the MSP430F149 microprocessor, and the MSP430F149 microprocessor is electrically connected with the Si4432 module. The Si4432 module is connected with the concentrator, and the concentrator is connected with the central processor. The system is suitable for a meter-reading system for an intelligent electric meter of the smart home.

Wireless meter-reading system for intelligent electricity-larceny-prevention electric meter of smart home based on 3G network

The invention discloses a remote automatic meter recording system, which comprises an intelligent power meter, a data acquirer, a second power line modem, a low-voltage power grid, a first power line modem, a concentrator, a second modem, a data communication network, a first modem and a remote server meter reading center, wherein the data acquirer is embedded into the intelligent power meter, and is used for converting acquired power data into a data format suitable for power carrier transmission through the second power line modem, and outputting and transmitting the power data through the low-voltage power grid; the data format of the data transmitted by the low-voltage power grid through a carrier is converted by the first power line modem, and the format-converted data is transmitted to the concentrator; the data communication network comprises any one of an optical fiber network, a GPRS (General Packet Radio Service) network, a 3G (3rd-Generation) communication network and a 4G (4th-Generation) communication network. The remote automatic meter recording system has the advantages of high technical level, high reliability, data accuracy, high adaptability, complete functions, small module size and low power consumption.

Remote automatic meter recording system

The invention discloses a robust adaptive estimation method for single-guide heart rate detection of a fetus. The robust adaptive estimation method comprises the following steps of: acquiring abdominal wall electrocardiosignals of a pregnant woman, and performing pretreatment for eliminating noise and interference; modeling and filtering maternal electrocardiosignals in the abdominal wall electrocardiosignals of the pregnant woman; performing adaptive estimation and robustness analysis during filtering; obtaining fetus electrocardiosignals according to the maternal electrocardiosignals; and calculating the heart rate of the fetus. The adaptive estimation and the robustness analysis are performed in the process of filtering the maternal electrocardiosignals, so that calculation reliability and accuracy of the heart rate of the fetus.

Robust adaptive estimation method for single-guide heart rate detection of fetus

The present invention discloses a wireless power meter reading system based on the two-dimensional code data transmission. According to the invention, a power meter data collector comprises a single-chip microcomputer and a first radio frequency transmission module. The single-chip microcomputer includes a metering module and a two-dimensional code generating module connected with the metering module. The metering module is used for the power metering purpose. The two-dimensional code generating module is used for converting the power metering information, the coding of a concentrator correspondingly connected with the power meter data collector, and the address coding stored in the concentrator into two-dimensional code labels, and then dynamically displaying the obtained two-dimensional code labels. Each two-dimensional code label is endowed with a unique physical address. The single-chip microcomputer sends the two-dimensional code labels to the power meter data collector in the form of radio signals by means of the first radio frequency transmission module. The power meter data collector comprises an MCU, a second radio frequency transmission module and a GPRS module. The MCU is used for receiving the two-dimensional code labels in the form of radio signals by means of the second radio frequency transmission module, processing the two-dimensional code labels and then outputting the processed two-dimensional code labels by means of the GPRS module.

Wireless power meter reading system based on two-dimensional code data transmission

The invention relates to the field of power system meter reading and in particular relates to a synchronous electricity consumption information acquisition method and a synchronous electricity consumption information acquisition system. Channels are divided, a concentrator performs centralized reading in a first channel set, and IHD transmits in a second channel set and a third channel set. Therefore, the concentrator and the IHD are not arranged in the same channel set and do not influence with each other. In addition, the multiple channels are simultaneously monitored, the information jumps among the multiple channels according to the preset time length, and the information acquisition efficiency is improved. Meanwhile, the IHD priority is taken as a principle, when the concentrator and IHD are simultaneously monitored, the IHD priority is realized, and when the concentrator acquires the data, the IHD is monitored, and the data acquisition is abandoned so as to switch to IHD, so that the success rate of simultaneously operating the IHD and the concentrator at one time is improved.

Synchronous electricity consumption information acquisition method and system

The invention discloses a wireless power meter reading system and control method thereof, belonging to the power system filed. The system comprises a power meter data acquisition unit and a power meter data concentrator, wherein the power meter data acquisition unit comprises a power supply module, single chip machine and a first radio frequency transmission module, wherein the power supply module is used for supplying power to the single chip machine and the first radio frequency transmission module; the single chip machine is used for acquiring power meter data and transmitting the power meter data to the power meter data concentrator in mode of radio signal through the first radio frequency transmission module; the power meter data concentrator comprises a power supply module, an MCU (Micro-programmed Control Unit), a second radio frequency transmission module and a GPRS (General Packet Radio Service) module, wherein the power supply module is used for supplying power to the MCU, the MCU is used for receiving the power meter data in mode of radio signal through the second radio frequency transmission module and transmitting the power meter data submitted to process to a remote platform trough the GPRS module. According to the invention, automatic acquisition of power meter data is realized without changing the original user power meter, so that the invention can be popularized easily.

Wireless power meter reading system and control method thereof

The utility model discloses a wireless power meter reading system and belongs to the field of power systems. The system comprises an electricity meter data acquisition device and an electricity meter data concentrator, wherein the electricity meter data acquisition device comprises a power module, a singlechip and a first radio frequency transmission module; the power module is used for supplying power to the singlechip and the first radio frequency transmission module; the singlechip is used for acquiring the electricity meter data and transmitting the electricity meter data to the electricity meter data concentrator in a radio signal form through the first radio frequency transmission module; the electricity meter data concentrator comprises a power supply module, a micro control unit (MCU), a second radio frequency transmission module and a general packet radio service (GPRS) module; the power supply module is used for supplying power to the MCU; and the MCU is used for receiving the electricity meter data in the radio signal form through the second radio frequency transmission module and transmitting the processed electricity meter data to a remote platform through the GPRS module. By the wireless power meter reading system, the electricity meter data can be fully automatically acquired, the original electricity meters of users are not required to be changed, and the wireless power meter reading system is easily popularized.

Wireless power meter reading system

Dual-lead device and method for extracting fetal electrocardiosignals

The utility model discloses an automatic electronic voice advertisement system, which belongs to the field of voice broadcast equipment and comprises a thermal infrared sensing module and a voice module, wherein the thermal infrared sensing module is connected with the voice module through a cable and detects pyroelectric infrared signals of human bodies, when the thermal infrared sensing module detects the existence of people nearby, high level signals are output to the voice module, and then, the voice module plays voice advertisement. After people leave, the thermal infrared sensing module output low level signals, and the voice module detects the signal and stops work after the current voice advertisement play is completed. The automatic electronic voice advertisement system has the advantages that the automatic human body sensing and the voice control module is effectively combined, and the effect that the voice advertisement is automatically played when people pass through an advertising board, so the better advertisement effect is reached; and because of the automatic sensing function, the noise pollution and the electric consumption are reduced, and the merchant image and the propaganda effect are also improved.

Wenhao Jiang

Papers

Wireless power meter reading system and control method thereof

Wireless power meter reading system

Dual-lead device and method for extracting fetal electrocardiosignals

Automatic electronic voice advertisement system