Electric power acquisition device data transmission module
The utility model relates to the combination of a kind of Electric Power Data Collector and electric power data transmission unit, belongs to wireless communication field.
The power information of existing Utilities Electric Co. system acquisition power consumer is the power information of gathering electronic electricity meter by data acquisition unit, be wirelessly transmitted to data concentrator by power line or micropower, data concentrator is transferred to the management server of power marketing system again by public phone network, as shown in Figure 1.Because present technology limits, the power line transmission data exist anti-interference poor, and decay is serious, and channel parameter changes the fast transmission quality that causes data that waits and can not get guaranteeing.
As shown in Figure 2, the available data collector all adopts the mode of " high-performance MCU Main Processor Unit (data acquisition and storage)+communication module ".Because communication module separates with the Main Processor Unit formula, institute in this way cost than higher.And master controller (MCU) and memory are also arranged in the communication module, so on resource repetition.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of electric power acquisition device data transmission module is provided, main control module as acquisition terminal, it is integrated electric power acquisition agreement and electric power data host-host protocol on the GSM/GPRS module basis, cooperation just can directly be copied and accepted the data of ammeter by the serial ports of module with the interface circuit of necessity, and can be with the electricity consumption transfer of data to the main website of Utilities Electric Co. by the GPRS channel.
The technical scheme that provides according to the utility model, described electric power acquisition device data transmission module comprises the GPRS module, described GPRS module connects a plurality of ammeters by the RS485 interface, the GPRS module is integrated DL/T 645-1997 and the DL-T 645-2007 State Grid industry agreement of checking meter, and Q/GDW_376.1-2009 " power consumer power information acquisition system communication protocol: main website and acquisition terminal communication protocol ", described GPRS module possesses simultaneously checks meter and the data upload function, also is connected with LED light, button and infrared port.
Described GPRS module adopts Shanghai Simcom SIM300W P1604B03SIM300W128 module.
The utility model has the advantages that: compare the conventional powerline transmission means, data concentrator has been saved in the appearance of this module, avoided the unreliability of power line transmission, realized collection, storage, transmission module-integrated of electric power data, make that the formation of electric power acquisition system is simpler, transfer of data is more reliable.ICP/IP protocol is adopted in the GPRS transmission, and data transmission credibility greatly improves, and system constitutes cost and greatly reduces.
Description of drawings
Fig. 1 is existing electric power data acquisition system schematic diagram.
Fig. 2 is existing Electric Power Data Collector structured flowchart.
Fig. 3 is that the utility model software constitutes schematic diagram.
Fig. 4 adopts new electric power acquisition system schematic of the present utility model.
Fig. 5 is a structured flowchart of the present utility model.
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 5, the utility model comprises the GPRS module, and described GPRS module connects a plurality of ammeters by the RS485 interface, and described GPRS module also is connected with LED light, button and infrared port.Interface circuit is the RS485 interface, can articulate at least 32 electronic electricity meters.Described LED light is used to indicate the running status of this electric power acquisition device data transmission module, network state etc.Button is used for starting collector and enters service mode.Infrared port is used for being provided with the operational factor of this electric power acquisition device data transmission module.
Fig. 4 compared to Figure 1, communication module in the conventional electric power acquisition terminal is the transmission submodule on the acquisition terminal hardware, and the utility model is as the main control module of electric power acquisition device as acquisition terminal, it is on the GSM/GPRS module basis simultaneously, integrated DL/T 645-1997 and the DL-T 645-2007 State Grid industry agreement of checking meter on the software, and Q/GDW_376.1-2009 " power consumer power information acquisition system communication protocol: main website and acquisition terminal communication protocol ", cooperation just can directly be copied and accepted the data (the meter reading communication agreement that meets State Grid's industry) of ammeter by the serial ports of module with the interface circuit of necessity, and can be with the electricity consumption transfer of data to main website of Utilities Electric Co. (main website and the acquisition terminal communication protocol that meet Utilities Electric Co.) by the GPRS channel.
This Electric Power Data Collector electric power DTU(data transmission unit of holding concurrently) the SIM300W P1604B03SIM300W128 module with Ximutong Information Technology (Shanghai) Co., Ltd. is a carrier on the hardware, the basic application interface that provides based on SIMCOM on the software.The attached software module of checking meter with independent development, Data Storage, GPRS bitcom module constitutes, as shown in Figure 3, be the center with the process control module, connect the software module of checking meter respectively, Data Storage, GPRS bitcom module and maintenance and state indication processing module.According to the hardware condition that this product is complied with, this module has the FLASH memory of 16M Byte.Remove the shared FLASH space of software code, this product can be copied and accepted the 10 day hour freezing data of ammeter of storage more than 32,31 light freezing data, 12 months moon freezing data and 2 months 62 days day freezing data of checking meter.