CN103377544A - Wireless meter reading router of automatic meter reading system - Google Patents
Wireless meter reading router of automatic meter reading system Download PDFInfo
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- CN103377544A CN103377544A CN 201210113057 CN201210113057A CN103377544A CN 103377544 A CN103377544 A CN 103377544A CN 201210113057 CN201210113057 CN 201210113057 CN 201210113057 A CN201210113057 A CN 201210113057A CN 103377544 A CN103377544 A CN 103377544A
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Abstract
The invention provides a wireless meter reading router of an automatic meter reading system, belongs to the technical field of measuring systems, and in particular relates to an automatic meter reading system which is high in meter reading efficiency, high in accuracy and capable of saving manpower. The wireless meter reading router of the automatic meter reading system comprises a wireless meter reading network, wherein the wireless meter reading network is connected with a main station system by a GPRS (General Packet Radio Service) network, and comprises a concentrator and a plurality of electricity meters; a routing protocol of the wireless meter reading network adopts a broadcast mechanism that TTLs are increased successively.
Description
Technical field
The invention belongs to the measuring system technical field, relate in particular to a kind of Automatic meter reading system.
Background technology
For China's manual meter reading method in present many areas, the staff need in person register one's residence and check meter, and workload is very large, not only work efficiency is low, occurs easily leaking copying, and mistake such as copies at the problem, and the cycle of manual metering is longer, is difficult to user power utilization information is carried out timely tabulate statistics.
Summary of the invention
The present invention is exactly for the problems referred to above, and a kind of meter reading efficiency height, high, the labor-saving Automatic meter reading system of accuracy rate are provided.
For achieving the above object, the present invention adopts following technical scheme, the present invention includes the radio meter register network, the radio meter register network links to each other with main station system by GPRS network, described radio meter register network is comprised of concentrator and a plurality of ammeter, and the Routing Protocol of radio meter register network adopts TTL to increase progressively one by one broadcast mechanism.
As a kind of preferred version, the route discovery procedure of radio meter register network of the present invention adopts load-balancing mechanism.
As another kind of preferred version, radio meter register network using ad-hoc pattern of the present invention.
Beneficial effect of the present invention
Meter reading efficiency of the present invention is high, and accuracy rate is high, can carry out Real Time Monitoring to user's electricity consumption situation, can in time find and gets rid of fault, prevents the generation of the situations such as illegal electricity consumption and theft electricity; Save manpower and spending cost; Manage more science.The present invention adopts and increases progressively one by one broadcast mechanism by TTL, can effectively reduce the network overhead of route discovery, simultaneously, add load-balancing mechanism, defined the index of node usage frequency, selected best route by this index, avoid the network node load overweight, thereby improve network throughput.
Description of drawings
Fig. 1 is load-balancing mechanism figure of the present invention.
Embodiment
As shown in the figure, the present invention includes the radio meter register network, the radio meter register network links to each other with main station system by GPRS network, and described radio meter register network is comprised of concentrator and a plurality of ammeter, and the Routing Protocol of radio meter register network adopts TTL to increase progressively one by one broadcast mechanism.
The route discovery procedure of described radio meter register network adopts load-balancing mechanism.
Described radio meter register network using ad-hoc pattern.
Automatic meter reading system is to utilize modern communication technology and computer technology, take main station system as control center, concentrates the robotization kilowatt meter reading-out system of copying and accepting the electric supply meter power information of administering by concentrator.The computer network system that main website is comprised of various servers and database is responsible for the user power utilization information of monitoring institute restriction; Concentrator is a powerful embedded system, plays a part to form a connecting link in whole kilowatt meter reading-out system, and he responds order that main website sends and ammeter is operated or gathers the energy data that ammeter produces according to order, concentrates and issues main website; The ammeter of this system is connected with communication module, and communicates by communication module and concentrator.The wireless solution that the present main scheme of checking meter has adopted GPRS to be combined with micropower wireless communication technology.Wherein, main website and concentrator adopt the GPRS technical communication, utilize existing GSM/GPRS network, need not special laying-out, and technology maturation is convenient and reliable; Concentrator and ammeter are by the micropower wireless technical communication, and wherein the wireless technology of 470～510Mhz frequency range is the selection scheme of current hot topic.This frequency range is that country has just discharged the frequency range that is used for civilian wireless metering without committee, the transmission of wireless signals distance, and diffracting power is strong, is very suitable for reading technique.Concentrator and ammeter form a wireless self-organization network by the micropower wireless technology.Ammeter in the network can add the network of checking meter automatically, and is established to the route of concentrator.Network using ad-hoc pattern, the node in the network can be transmitted the data of other nodes, when two nodes surpass wireless transmission range, can transmit by other nodes, utilizes the mode of multi-hop to communicate by letter.
To send grouping to destination node when source node but when not having the routing iinformation of destination node, then start route finding process.Route finding process is by the formal expansion of " inundation ".Source node is to routing request packet (Route Request of the whole network broadcasting, RREQ), the node of receiving RREQ at first judges whether to repeat to receive RREQ, if then abandon this RREQ, otherwise determine whether destination node or comprise the routing iinformation of destination node, if above-mentioned condition is set up, then send routing reply bag (Route Reply to source node, RREP), comprised the routing iinformation of source node to destination node among the RREP, after source node is received RREP, routing iinformation is stored in the route-caching Route establishment success.When the node of receiving RREQ is not destination node and when not having the routing iinformation of destination node, it is added on the address of oneself in the source routing address list of RREQ, continue broadcasting RREQ.Within the time period that energy data is regularly uploaded, the data volume that exchanges in the network of checking meter is very large, simultaneously, the node that has may be as the intermediate node of many routes and is frequently used, the data volume of transmitting by this node is very large, therefore load is heavier, and the node that has seldom uses and become very much very " spare time ".Like this, " hurrying " node causes network delay very large even cause loss of data owing to transmitting mass data, and " spare time " node is not owing to be fully utilized but cause the waste of Internet resources.Therefore, need in network, add load-balancing mechanism, improve network performance.This agreement is weighed its load indirectly according to the number of times that network node is used as relaying." usage frequency " index d of each node maintenance in the network." usage frequency " di of node i equals the number of times that this node is used as the route via node in the define grid, route cost C is defined as the usage frequency of the via node of node usage frequency maximum in the route, that is: arg max di i 150C=d, wherein, i is route via node number.Do not need intermediate node to transmit, the cost C of the route of two node direct communications is 0.Optimum route is selected by destination node, and the principle of selection is: the route of 1. at first selecting directly to arrive destination node.If 2. 1. be false, then select the route of minimum hop count.If 3. the route of many minimum hop count is arranged, then select route Least-cost wherein one.Above-mentioned selection course 2., 3. in, all must consider whether contain the intermediate node of overload in the route, if having, then should not select this route.The overload node refers to that node usage frequency di surpasses the thresholding λ of certain setting.
As shown in Figure 1, in the network of checking meter, there are 6 nodes, be respectively 1 concentrator and 5 ammeters (the colon back is the node usage frequency), wherein Node B, C, D, E have set up the route that plays A, be respectively: A---B, A---C, A---B---D, A---B---E, node F obtains three Route Selection by the Route establishment process, is respectively 1:A---C---F, 2:A---B---F, 3:A---B---E---F.According to the principle of Route Selection, should from 1 and 2 routes of minimum hop count, select.The cost of route 1 is 1, and the cost of route 2 is 2, thus select headed by the route 1 routing by.
Claims (3)
1. the radio meter register route of Automatic meter reading system, it is characterized in that comprising the radio meter register network, the radio meter register network links to each other with main station system by GPRS network, described radio meter register network is comprised of concentrator and a plurality of ammeter, and the Routing Protocol of radio meter register network adopts TTL to increase progressively one by one broadcast mechanism.
2. the radio meter register route of described Automatic meter reading system according to claim 1 is characterized in that the route discovery procedure of described radio meter register network adopts load-balancing mechanism.
3. the radio meter register route of described Automatic meter reading system according to claim 1 is characterized in that described radio meter register network using ad-hoc pattern.
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| CN 201210113057 CN103377544A (en) | 2012-04-17 | 2012-04-17 | Wireless meter reading router of automatic meter reading system |
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| CN 201210113057 CN103377544A (en) | 2012-04-17 | 2012-04-17 | Wireless meter reading router of automatic meter reading system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046480A (en) * | 2015-03-20 | 2015-11-11 | 国家电网公司 | Intelligent meter reading and fee-paying method and intelligent meter reading and fee-paying system |
| CN105282249A (en) * | 2015-10-30 | 2016-01-27 | 国网新疆电力公司电力科学研究院 | Device and method for remotely issuing electric energy meter parameters and control commands based on transparent collection tasks |
| CN107316451A (en) * | 2017-07-06 | 2017-11-03 | 武汉盛帆智能科技有限公司 | Cluster type networks meter register method and device based on wireless meter |
| CN107995250A (en) * | 2016-10-26 | 2018-05-04 | 成都长城开发科技有限公司 | Automatic meter reading system and method |
| CN109104594A (en) * | 2018-11-06 | 2018-12-28 | 国网河南省电力公司温县供电公司 | A kind of power remote meter reading system |
-
2012
- 2012-04-17 CN CN 201210113057 patent/CN103377544A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046480A (en) * | 2015-03-20 | 2015-11-11 | 国家电网公司 | Intelligent meter reading and fee-paying method and intelligent meter reading and fee-paying system |
| CN105282249A (en) * | 2015-10-30 | 2016-01-27 | 国网新疆电力公司电力科学研究院 | Device and method for remotely issuing electric energy meter parameters and control commands based on transparent collection tasks |
| CN105282249B (en) * | 2015-10-30 | 2019-06-14 | 国网新疆电力公司电力科学研究院 | Transparent acquisition tasks remotely issue parameters of electric energy meter and control command device and method |
| CN107995250A (en) * | 2016-10-26 | 2018-05-04 | 成都长城开发科技有限公司 | Automatic meter reading system and method |
| CN107316451A (en) * | 2017-07-06 | 2017-11-03 | 武汉盛帆智能科技有限公司 | Cluster type networks meter register method and device based on wireless meter |
| CN107316451B (en) * | 2017-07-06 | 2019-10-25 | 武汉盛帆电子股份有限公司 | Cluster type networks meter register method and device based on wireless meter |
| CN109104594A (en) * | 2018-11-06 | 2018-12-28 | 国网河南省电力公司温县供电公司 | A kind of power remote meter reading system |
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Application publication date: 20131030 |