Remote meter reading method and system, primary electric energy meter and secondary electric energy meter
A technology of remote meter reading and electric energy meter, which is applied in the communication field and can solve problems such as slow meter reading speed
Active Publication Date: 2012-08-15
STATE GRID INFORMATION&TELECOMM +3
View PDF6 Cites 15 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the current bandwidth of low-voltage power line communication is limited in the range of 3KHz to 500KHz, and the communication rate is less than 1Mbit / s, the meter reading speed is relatively slow
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.
[0037] figure 1 It is a schematic diagram of an embodiment of the remote meter reading method of the present invention. like figure 1 As shown, the remote meter reading method of this embodiment is as follows:
[0038] Step 101, the collection terminal sends a meter reading command to each electric energy master meter through the power line, and the meter reading command includes the address of the electric energy meter.
[0039] Step 102, after receiving the meter reading command, each electric energy master meter judges whether the address of the electric energy meter included in the meter reading command is the same as the address of its own master meter. If the address of the electric energy meter is the same as the main meter address of the electric energy master meter itself, step 103 is e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a remote meter reading method and system, a primary electric energy meter and a secondary electric energy meter. In the remote meter reading method, an acquisition terminal sends a meter reading command to each primary electric energy meter through a power line; each primary electric energy meter judges whether the electric energy meter address included in the meter reading command is the same as the primary meter address thereof; if the two addresses are different, the primary electric energy meter sends the meter reading command to each secondary electric energy meter connected therewith through an RS485 bus, and each secondary electric energy meter judges whether the electric energy meter address included in the meter reading command is the same as the secondary electric meter address thereof; and if so, the secondary electric energy meter sends the meter data obtained by the statistics thereof to the acquisition terminal through the primary electric energy meter via the RS485 bus. Since the acquisition terminal sends the meter reading command to each primary electric energy meter through the power line and each primary electric energy meter sends the meter reading command to multiple secondary electric energy meters connected therewith through the RS485 bus, the wiring complexity is simplified, the meter reading cost is reduced, and the meter reading speed is increased.
Description
technical field [0001] The invention relates to the communication field, in particular to a remote meter reading method and system, a main electric energy meter and an electric energy auxiliary meter. Background technique [0002] With the application of digital technology in electric energy meters, a General Packet Radio Service (General Packet Radio Service, GPRS for short) electric power remote meter reading system has been widely used. The GPRS power remote meter reading system utilizes the existing GPRS network or other mobile communication networks to transmit meter data, thereby realizing remote meter reading. However, the disadvantage of this solution is that the GPRS electric remote meter reading system relies on the mobile network of the mobile operator, so it needs to pay a high traffic fee to the mobile operator, resulting in high operating costs. At the same time, in remote areas, due to the poor infrastructure of mobile operators, the success rate of meter rea...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G08C19/00
Inventor 刘建明李祥珍臧志斌欧清海林大朋李云峰甄岩武延年郑英刚臧艳伟海雷刘文勇宋小卉
Owner STATE GRID INFORMATION&TELECOMM