Broadcast meter-reading method for wireless intelligent meter-reading system
A broadcast meter reading and smart meter reading technology, applied in signal transmission systems, instruments, etc., can solve problems such as increased power consumption of a single meter, prolonged waiting time, and interference of a single meter, and achieve the effect of reducing capacitance and waiting time
Inactive Publication Date: 2013-04-17
上海桑锐电子科技股份有限公司
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Problems solved by technology
For low-power meter-end modules, direct real-time meter reading generally adopts point-to-point meter reading. This has the following disadvantages: 1. Because the RXD channels of all meter ends in the system are the same, any one of them can be read In this way, if 100 meters are read at a time, a single meter will be disturbed 99 times, and the power consumption of a single meter will be increased invisibly.
2. Point-to-point meter reading is a queue-based one-by-one meter reading, and it takes 1.5s to read individual meters, and it takes 150s to complete the real-time data reading of 100 meters
That is, the waiting time for the concentrator to obtain data is extended invisibly
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[0009] According to the accompanying drawings, the invention discloses a broadcast meter reading method for a wireless intelligent meter reading system, which includes a concentrator, a repeater, a hand copy device and a terminal meter.
[0010] When the concentrator reads the broadcast meter reading data through the repeater: when the concentrator receives the meter reading command from the remote server through GPRS, if it is real-time meter reading with relay, the concentrator first needs to specify the path Send the real-time meter reading command to the end repeater, and then the end repeater calculates the total waiting time of this broadcast meter reading according to its own file meter number after receiving the broadcast meter reading command issued by the concentrator. If there are 100 meter files in the repeater, then the total waiting time is 100*0.5 seconds=50 seconds, and at most four rounds of broadcast meter reading commands will be issued within 50 seconds, tha...
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The invention discloses a broadcast meter-reading method for a wireless intelligent meter-reading system. The wireless intelligent meter-reading system comprises a concentrator, a repeater, a handset and terminal meters. The method is characterized in that the repeater calculates the total waiting time of the broadcast meter-reading according to the own file meter number after receiving a broadcast meter-reading command from the concentrator or the handset, and then sends the broadcast meter-reading command to the meter terminals; the repeater enters a carrier sense mode to work in a low-power-consumption way after a meter terminal module returns successfully; if no terminal meter returns data or the file meters inside the repeater are completely read, the read terminal meter data is returned to the concentrator according to the path of the real-time broadcast meter reading command from the concentrator; after all the meters are completely read, the concentrator packages the real-time data of all the subordinate terminal meters to send the data package to a far server to complete broadcast real-time meter-reading in one attempt. The method overcomes the interference to the adjacent meters during the batch meter-reading of the concentrator, and reduces the battery capacity consumed due to the interference to the meters and the time spent in batch meter-reading.
Description
technical field [0001] The invention relates to a wireless intelligent water meter system, in particular to a method for fast real-time meter reading broadcast by a concentrator in the wireless intelligent meter reading system. Background technique [0002] The international wireless remote intelligent water gas meter system generally consists of a concentrator, a repeater and a terminal meter. There are two methods for the existing concentrator to obtain meter-end data: passively receiving timing and quantitative data and directly copying meter-end data. For low-power meter-end modules, direct real-time meter reading generally adopts point-to-point meter reading. This has the following disadvantages: 1. Because the RXD channels of all meter ends in the system are the same, any one of them can be read When reading the meter, the adjacent meters will receive the meter reading command. In this way, if 100 meters are read at a time, a single meter will be disturbed 99 times, a...
Claims
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IPC IPC(8): G08C17/02
Inventor 孟繁鼎聂光义
Owner 上海桑锐电子科技股份有限公司