Wireless meter reading method and system
A wireless meter reading and meter technology, applied in the field of communications, can solve the problems of multiple meters prone to collision, high power consumption, and inability to achieve efficient meter reading, etc., to achieve the effects of saving power consumption, avoiding collisions, and efficiently reading meters
Active Publication Date: 2015-04-08
SHENZHEN HAC TELECOM TECH
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a wireless meter with low power consumption and high efficiency in view of the defects of the prior art that the power consumption is large during wireless meter reading or that high-efficiency meter reading cannot be realized because multiple meters are prone to collisions. Meter reading method
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[0036] figure 2 It is a flow chart of embodiment one of the wireless meter reading method of the present invention, and the wireless meter reading method includes:
[0037] S1. The meter sends information to the concentrator at the first time of each interval, the sent information includes the static ID, metering data and dynamic ID corresponding to the meter, wherein, in the initial state, the dynamic ID is zero , and the first time is a random value within the preset range; in a non-initial state, the dynamic ID is a non-zero value assigned by the concentrator, and the first time is the time specified by the concentrator . It should be noted that each device has a unique ID number, and the unique identification of the instrument is a static ID, abbreviated as SID. SID represents the identity of the instrument, and it cannot be changed under normal circumstances. Concentrators also have IDs, abbreviated as CIDs. The ID of the repeater, abbreviated as RID. combine image...
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The invention discloses a wireless meter reading method and a system. The wireless meter reading method includes that: a meter sends information to a concentrator in the first time of each interval, the sent information consists of a static ID corresponding to the meter, measurement data and a dynamic ID, which is zero under an initial state, and the first time is a random value in a preset range; under a non-initial state, the dynamic ID is a non-zero value concentrator assigned by the dynamic ID, and the first time is specified by the concentrator; the meter receives return information of the concentrator, with the return information including the assigned dynamic ID assignment and clock information of the system; the meter calibrates its clock according to the clock information, and employs the dynamic ID as a serial number to determine the time slice of the meter in a communication channel, so that multiple meters can undergo time division multiplexing communication in the communication channel. By applying the technical scheme involved in the invention, collision can be avoided when various meters send data to the concentrator, and power consumption is also saved.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a wireless meter reading method and system. Background technique [0002] With the development of the Internet of Things and sensor networks, more and more attention has been paid to the meter reading of instruments without external power supply such as water meters, gas meters, and heat meters. Micropower (short distance) wireless communication technology will play a very important role in the meter reading application of these meters. The wireless meter reading system consists of a host computer (server), a concentrator and multiple meters. Since the meters do not have a continuous external power supply, the meter reading of these meters can only be obtained by batteries or other means (solar energy, water / air flow power generation, etc.) Therefore, its communication itself must consume extremely low power consumption in order to make power supply components such as batt...
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IPC IPC(8): G08C17/02
Inventor 雷兆军曹辉
Owner SHENZHEN HAC TELECOM TECH