CN103095362A - Inter-relaying method of wireless automatic meter reading system - Google Patents
Inter-relaying method of wireless automatic meter reading system Download PDFInfo
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Abstract
The invention belongs to the technical field of automatic meter reading, and relates to an inter-relaying method of a wireless automatic meter reading system. The inter-relaying method of the wireless automatic meter reading system includes the following steps: firstly, manually drawing up a routing connection diagram from a concentrator to all terminals and forming a structure-integrated routing table which contains all routes, secondly, transmitting the routing table through a junction center to the concentrator in a wired or wireless mode, transmitting testing frames to all the terminals one by one through the concentrator according to the stored routing table, and checking whether the manually drawn up routing table is reliable or not, at last checking the mounting site of the terminals again according to fault terminals which can not reliably communicate with the concentrator, adjusting the route of the preset routing table, keeping positions in the routing table of the terminals which can communicate reliably with the concentrator unchanged, storing the new routing table in the concentrator, and testing again. The inter-relaying method of the wireless automatic meter reading system has the advantages of being simple in craft process, less in manual labor, low in managing cost and high in degree of automation.
Description
Technical field:
The invention belongs to the Automatic meter reading field, relate to the trunking method each other that a kind of wireless automatic meter recording system is set up the method, particularly a kind of wireless automatic meter recording system of communication route.
Background technology:
At present, the automatic meter number recorders such as the electric energy meter that has generally used, water meter, gas meter, flow meter are generally the auto-manual system Automatic meter reading system, in certain residential quarter or certain panel region, the ammeter of each resident family or water meter, gas meter are transformed into the mode that can export pulse, take ammeter as example, each ammeter is marked with a meter constant, and meter constant represents how many circles dial plate turns and be kilowatt-hour.Suppose that 720 is meter constants, after just representing that the ammeter dial plate has turned 720 circles, literary name is that the electric degree number can increase by 1 degree electricity, the effect of photoelectric probe is exactly that the mechanical revolution of dial plate is converted to the electric pulse number, namely the ammeter dial plate often turns around and will make photoelectric probe produce an electric pulse, and this pulse will send acquisition terminal to by transmission line, and each acquisition terminal can connect 16 table meters at present, namely the most multiplex 16 transmission lines are connected with 16 table meters, and acquisition terminal is with CPU and memory.acquisition terminal can gather the pulse of 16 table meters simultaneously, terminal can be converted to the electric degree number with pulse data according to meter constant, as being that the umber of pulse accumulative total that certain piece table meter transmits has reached 720 from certain root transmission line, the numeral of certain memory cell just adds 1 in the memory of terminal so, this the numeral with ammeter on numeral be consistent, these data can be preserved after the terminal power down more than 10 years, but the data that terminal collects collection from each table also will be transferred to a central computer and store and process, how to solve the transmission of data from the terminal to the central computer, two schemes is arranged at present, a kind of is artificial process, a kind of is wireless automated communications method, artificial process is by artificial hand-held data collector, arrives each terminal seat reading out data one by one, then arrives the center calculation machine room, and data input computer, this method exhausts the people and drains the treasury, wireless automated communications method is to set up a wireless communication system between central computer and all terminals, realize the automatic transmission of data by wireless mode, because the power of the wireless module of acquisition terminal is less, namely the ultimate range of two mutual communications of wireless module is only 100 meters left and right, far just can not receive mutually again, to be sent to a distant place to data, must adopt the mode of relay to transmit, namely at interval of 100 meters or less than 100 meters N1 that all distributing, N2, N3......Nn terminal, N1 sends data to N2, after receiving, N2 sends again N3 to, so just can send Nn to always, this makes storage pass and sends out.why need to increase concentrator between central computer and terminal? this is because the distance of the terminal that central computer is installed from each user residential quarter has all substantially exceeded 100 meters, terminal and central computer are directly impossible by wireless transmission, therefore each residential quarter is except having acquisition terminal, also need a concentrator, pass through the mode swap data of wireless channel between concentrator and all terminals of this residential quarter, it is might direct communication that each concentrator and distance are no more than the terminal of 100 meters, and surpass the communicating by letter of terminal and concentrator of 100 meters with concentrator distance, will can be the relay with the terminal of concentrator direct communication by those, with relaying each other, the mode of storage forwarding is carried out, just as carrying out to the mode of Nn relay by N1 of top introduction, concentrator passes through wireless channel, can get up the Data Collection of all terminals of whole residential quarter in the mode of relaying each other, be stored in the mass storage of itself, and concentrator can carry out with wired mode by telephone wire with communicating by letter of central computer.Therefore, communicating by letter between central computer and concentrator can not be subjected to distance limit, even can realize and the communicating by letter of concentrator with the GPRS mode, and in brief, in above-mentioned wireless kilowatt meter reading-out system, wired mode is used in the communication from the central computer to the concentrator; Wireless mode is adopted in the communication of each concentrator between each terminal of its subordinate, therefore, just must set up the route of communicating by letter between each terminal of concentrator and its subordinate.At present, also do not have the technical scheme of head it off to be disclosed.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, seek design and provide a kind of in existing wireless automatic meter recording system, realize that concentrator and subordinate terminal set up communicate by letter route and the method for relaying each other, set up reliable radio communication and contact between concentrator and each terminal.
To achieve these goals, the present invention includes the reliability of artificial establishment routing table, test routing table and revise three steps of routing table, its concrete technology step is;
(1), manually work out routing table: the actual installation position of on-the-spot investigation concentrator and all terminals of subordinate, according to radio-frequency region and visual physical distance, manually work out the communication route contact figure from concentrator to all terminals, guarantee that arriving each terminal from concentrator has a definite path, establishment forms a routing table that comprises the All Paths structural integrity;
(2), the reliability of test routing table: in wired or wireless mode, routing table is sent to concentrator by central station, all comprise first address table and second address table in the memory of concentrator and all terminal, wherein, the first address table is used for storing self address, the second address table is used for storing the routing table that will generate, the second address table of concentrator is being stored above-mentioned full routing table, the second following content of address table storage of each terminal: up terminal that storage and this terminal are nearest or the address of concentrator; Store the address of each terminal on descending all individual paths of this terminal, send test frame to all terminals by concentrator one by one according to the routing table of having stored, whether the routing table of the artificial establishment of checking is reliable, the steps include:
A. concentrator sends test frame to all terminals successively, wherein contain address as the concentrator of source address, link terminal address and as purpose terminal address, the routing table of destination address and the instruction that requires the purpose terminal responds, reserve the time enough interval for tested purpose terminal responds between every two test frames;
B. after tested terminal receives the test frame that concentrator sends, send acknowledgement frame to concentrator immediately, wherein comprise this terminal address as source address, link terminal address and as the concentrator address of destination address, and answer codes;
C. concentrator receives from after the replying of tested terminal, confirm reliable with being connected of this terminal, measured terminal is stored in the second address table of oneself and the nearest up terminal of this terminal or the address of concentrator, simultaneously, link terminal between concentrator and measured terminal will be stored and the nearest up terminal of this link terminal or the address of concentrator, and the address of each terminal on stored energy descending all individual paths of communicating by letter with this link terminal;
If d. within the predetermined time, do not receive from the replying of tested terminal, represent the route establishment mistake of this terminal, be the fault terminal with this terminal iidentification;
E. through first round test, possible some terminal is identified can be according to routing table and concentrator reliable communication, and remaining terminal according to the routing table of being scheduled to can not with the concentrator reliable communication;
(3), revise routing table: for those can not with the fault terminal of concentrator reliable communication, again reconnoitre the erecting bed of terminal, path to predetermined routing table is adjusted, these adjustment only limit to the change to fault terminal route, for those can with the terminal of concentrator reliable communication, its position in routing table must be kept intact constant, new routing table is deposited in the second address table of concentrator, again test, the steps include:
A. concentrator sends test frame to all fault terminals successively according to amended path, wherein contain address as the concentrator of source address, link terminal address and as purpose terminal address, the routing table of destination address and the instruction that requires the purpose terminal responds, reserve the time enough interval for tested purpose terminal responds between every two test frames;
B. after tested terminal receives the test frame that concentrator sends, send acknowledgement frame to concentrator immediately, wherein comprise this terminal address as source address, link terminal address and as concentrator address and the answer codes of destination address;
C. concentrator receives from after the replying of tested terminal, confirm reliable with being connected of this terminal, measured terminal is stored in the second address table of oneself and the nearest up terminal of this terminal or the address of concentrator, simultaneously, link terminal between concentrator and measured terminal will be stored and the nearest up terminal of this link terminal or the address of concentrator, and the address of each terminal on stored energy descending all individual paths of communicating by letter with this link terminal;
If d. within the predetermined time, do not receive from the replying of tested terminal, represent that the route of this terminal is worked out still mistake, be the fault terminal with this terminal iidentification again;
E. take turns test through second, possible some original fault terminal is identified can be according to new routing table and concentrator reliable communication, and remaining fault terminal according to new routing table still can not with the concentrator reliable communication;
For the fault terminal that still exists, repeat above-mentioned steps, until all terminals can with the concentrator reliable communication, at last the routing table that generates is deposited in the second address table of concentrator, this moment, the second address table of all terminal was all stored and the nearest up terminal of this terminal or the address of concentrator, and had stored the address of each terminal on descending all individual paths of this terminal; After test is completed, no longer comprise the link terminal address during transfer of data in Frame, only comprise source address and purpose terminal address, the length of Frame shortens in the time of will be than test greatly, and transmission efficiency can be higher.
A plurality of terminals that the wireless automatic meter recording system that the present invention relates to comprises a central station, be under the jurisdiction of a plurality of concentrators of central station, be under the jurisdiction of each concentrator and the some user's electric energy meters that are connected by wired mode with each terminal, each concentrator and terminal in this system have the ability of transmitting/receiving wireless signal, and its transmission range is not more than 100 meters.
The present invention has compared with prior art realized that concentrator communicates by letter with the automated wireless between affiliated terminal, need not arrange the person of checking meter to check meter to each user terminal, can at any time, automatically collect each user's data, its technical process is simple, and hand labor is few, administrative expenses are low, and automaticity is high.
Description of drawings:
Fig. 1 is the wireless kilowatt meter reading-out system structural principle schematic block diagram that the present invention relates to.
Fig. 2 is concentrator workflow structural principle schematic block diagram of the present invention.
Fig. 3 is terminal works flowage structure schematic block diagram of the present invention.
Embodiment:
Also the invention will be further described by reference to the accompanying drawings below by embodiment.
Embodiment:
The present embodiment hypothesis is installed with 15 meter reading terminals in certain residential quarter, its code name is respectively 1 to 15, each terminal connects some subscriber's meter meters by wired mode, also has a concentrator in this residential quarter, code name is 0, the actual installation place of above-mentioned 15 terminals is not quite similar to the distance of concentrator, have within 100 meters, also have outside 100 meters; Its step is as follows:
The first step, artificial establishment routing table: the actual installation position of on-the-spot investigation concentrator and all terminals of subordinate, according to radio-frequency region and visual physical distance, manually work out the communication route contact figure from concentrator to all terminals, guarantee that arriving each terminal from concentrator has a definite path, form one and comprise the All Paths full routing table, establish by artificial prospecting and worked out the routing table that comprises following 6 routes:
①0→1→4→5→6
②0→1→2→3
③0→1→7→8→9
④0→1→7→8→10→11
⑤0→1→7→8→12
⑥0→1→13→14→15
This routing table shows, concentrator 0 only with terminal 1 within 100 meters scopes, can direct communication; Terminal 1 and terminal 2,4,7,13 can direct communications all within 100 meters scopes; The like; The above 1.～6. represented routing table will be stored in concentrator and all terminal, all comprise first address table and second address table in the memory of concentrator and all terminal, wherein, the first address table is used for storing self address, the second address table is used for storing the routing table that will generate, storing above-mentioned complete routing table in the memory of concentrator, the second following content of address table storage of each terminal: up terminal that storage and this terminal are nearest or the address of concentrator; Store the address of each terminal on descending all individual paths of this terminal;
Second step, the reliability of test routing table: send test frame to all terminals by concentrator one by one according to the routing table of having stored, whether the routing table of the artificial establishment of checking is reliable, the steps include:
A. concentrator sends test frame to all terminals successively, wherein contain address as the concentrator of source address, link terminal address and as the purpose terminal address of destination address, routing table and the instruction that requires the purpose terminal responds reserve the time enough interval for tested purpose terminal responds between every two test frames;
B. after tested terminal receives the test frame that concentrator sends, send acknowledgement frame to concentrator immediately, wherein comprise this terminal address as source address, link terminal address and as the concentrator address of destination address, and answer codes;
c. concentrator receives from after the replying of tested terminal, confirm reliable with being connected of this terminal, the reliable terminal address that connects is stored in specific storage area in concentrator, show or by central station, it is inquired about by display device, measured terminal is stored in the second address table of oneself and the nearest up terminal of this terminal or the address of concentrator, simultaneously, link terminal between concentrator and measured terminal will be stored and the nearest up terminal of this link terminal or the address of concentrator, and the address of each terminal on stored energy descending all individual paths of communicating by letter with this link terminal,
If d. within the predetermined time, do not receive replying from tested terminal, the route establishment mistake that represents this terminal, be the fault terminal with this terminal iidentification, the address of fault terminal is stored in specific storage area in concentrator, in order to showing or by central station, its inquiry is just known by display device;
E. through first round test, possible some terminal is identified can be according to routing table and concentrator reliable communication, and remaining terminal according to the routing table of being scheduled to can not with the concentrator reliable communication;
For example: suppose that concentrator 0 sends test frame to terminal 15, according to route 6. 0 → 1 → 13 → 14 → 15, must pass through terminal 1,13 and 14 forwardings could arrive 15, detailed process is:
(1), concentrator 0 sends a string code with wireless mode, code form is such: line code+routing table+test code under terminal address 1+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+;
(2), after terminal 1 receives this code, judge order to oneself according to first terminal address 1; Code according to the 1st relay address 1 back is the 2nd relay address 13 again, order is become following form: line code+routing table+test code under terminal address 13+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+, then send amended code.
(3), after terminal 13 receives this code, judge order to oneself according to first terminal address 13; Code according to the 2nd relay address 13 back is the 3rd relay address 14 again, order is become following form: line code+routing table+test code under terminal address 14+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+, then send amended code;
(4), after terminal 14 receives this code, judge order to oneself according to first terminal address 14; Again according to the 1st relay address 14 back destination addresses 15, order is become following form: line code+routing table+test code under terminal address 15+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+, then send amended code;
(5), after terminal 15 is received the above-mentioned code that is sent by terminal 14, judge destination address 15 identical with self address, routing table is stored in the second address table of self, code is become following form send: the upper line code+response code of terminal address 14+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+;
(6), terminal 14 is judged order to oneself according to the location, location 14 in first code after receiving code, judge according to upper line code again and upload, therefore code is become following form and send: the upper line code+response code of terminal address 13+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+; The like, the order after terminal 1 forwards just becomes: the upper line code+response code of concentrator address 0+ source address 0+ the 1st relay address 1+ the 2nd relay address 13+ the 3rd relay address 14+ destination address 15+;
(7) after concentrator was received the code that forwards from terminal 1, checking 15 can be carried out reliable communication from concentrator 0 to terminal, and routing table is successfully sent to terminal 15; Through test, may there be some terminals not communicate with concentrator, be called the fault terminal, need to modify to predetermined route, to solve the problem of fault terminal;
The 3rd step, revise routing table: for those can not with the fault terminal of concentrator reliable communication, again reconnoitre the erecting bed of terminal, path to predetermined routing table is adjusted, these adjustment only limit to the change to fault terminal route, for those can with the terminal of concentrator reliable communication, its position in routing table must be kept intact constant;
Suppose that terminal 15 do not reply, supposition is revised through the inspection of the scene of a crime and has been determined that a new path undertaken one time by above-mentioned step again such as 0 → 1 → 2 → 3 → 15, if terminal 15 is replied, this path is successfully modified; If the test process no problem is recruited and surveyed data and just carry out according to following principle, the routing table of storing in all terminals should be stored the address with the terminal of descending all individual paths of the address of the nearest up terminal of this terminal and this terminal; For terminal 8, it is arranged in three paths,
③0→1→7→8→9
④0→1→7→8→10→11
⑤0→1→7→8→12
Therefore, to store the address of up terminal 7 in terminal 8, and store 3 descending individual paths: 8 → 9,8 → 10 → 11,8 → 12, and for terminal 7, store the address of up terminal 1, and store 3 descending individual paths: 7 → 8 → 9,7 → 8 → 10 → 11,7 → 8 → 12; Recruit the routing procedure when surveying data as follows: concentrator 0 will be asked for data to terminal 10, and through the routing table of inquiry self storage, finding out the path that comprises terminal 10 is 0 → 1 → 7 → 8 → 10 → 11, the command frame that sends comprises purpose terminal address 10 and forwards terminal address 1, namely 1,10, order; After terminal 1 receives orders, inquire destination address and self address is not mated, will forward, it inquires about in the routing table of storing according to destination address 10 itself, and inquiring route is 7 → 8 → 10 → 11, its command frame of sending comprises two addresses, purpose terminal address 10 forwards terminal address and changes 7 into, and namely 7,10, order; After terminal 7 receives orders, mail to terminal 10 by same program; After incoming terminal 10, command frame becomes 10,10, order, and terminal 10 is found destination address and the matching addresses of oneself, the order that makes an immediate response, and change frame format into 8,1, uplink is carried out in this order can be passed to concentrator 0.
Claims (2)
1. the trunking method each other of a wireless automatic meter recording system, is characterized in that comprising the reliability of artificial establishment routing table, test routing table and revising three steps of routing table, and its concrete technology step is;
(1), manually work out routing table: the actual installation position of on-the-spot investigation concentrator and all terminals of subordinate, according to radio-frequency region and visual physical distance, manually work out the communication route contact figure from concentrator to all terminals, guarantee that arriving each terminal from concentrator has a definite path, establishment forms a routing table that comprises the All Paths structural integrity;
(2), the reliability of test routing table: in wired or wireless mode, routing table is sent to concentrator by central station, all comprise first address table and second address table in the memory of concentrator and all terminal, wherein, the first address table is used for storing self address, the second address table is used for storing the routing table that will generate, the second address table of concentrator is being stored above-mentioned full routing table, the second following content of address table storage of each terminal: up terminal that storage and this terminal are nearest or the address of concentrator; Store the address of each terminal on descending all individual paths of this terminal, send test frame to all terminals by concentrator one by one according to the routing table of having stored, whether the routing table of the artificial establishment of checking is reliable, the steps include:
A. concentrator sends test frame to all terminals successively, wherein contain address as the concentrator of source address, link terminal address and as purpose terminal address, the routing table of destination address and the instruction that requires the purpose terminal responds, reserve the time enough interval for tested purpose terminal responds between every two test frames;
B. after tested terminal receives the test frame that concentrator sends, send acknowledgement frame to concentrator immediately, wherein comprise this terminal address as source address, link terminal address and as the concentrator address of destination address, and answer codes;
C. concentrator receives from after the replying of tested terminal, confirm reliable with being connected of this terminal, measured terminal is stored in the second address table of oneself and the nearest up terminal of this terminal or the address of concentrator, simultaneously, link terminal between concentrator and measured terminal will be stored and the nearest up terminal of this link terminal or the address of concentrator, and the address of each terminal on stored energy descending all individual paths of communicating by letter with this link terminal;
If d. within the predetermined time, do not receive from the replying of tested terminal, represent the route establishment mistake of this terminal, be the fault terminal with this terminal iidentification;
E. through first round test, possible some terminal is identified can be according to routing table and concentrator reliable communication, and remaining terminal according to the routing table of being scheduled to can not with the concentrator reliable communication;
(3), revise routing table: for those can not with the fault terminal of concentrator reliable communication, again reconnoitre the erecting bed of terminal, path to predetermined routing table is adjusted, these adjustment only limit to the change to fault terminal route, for those can with the terminal of concentrator reliable communication, its position in routing table must be kept intact constant, new routing table is deposited in the second address table of concentrator, again test, the steps include:
A. concentrator sends test frame to all fault terminals successively according to amended path, wherein contain address as the concentrator of source address, link terminal address and as purpose terminal address, the routing table of destination address and the instruction that requires the purpose terminal responds, reserve the time interval for tested purpose terminal responds between every two test frames;
B. after tested terminal receives the test frame that concentrator sends, send acknowledgement frame to concentrator immediately, wherein comprise this terminal address as source address, link terminal address and as concentrator address and the answer codes of destination address;
C. concentrator receives from after the replying of tested terminal, confirm reliable with being connected of this terminal, measured terminal is stored in the second address table of oneself and the nearest up terminal of this terminal or the address of concentrator, simultaneously, link terminal between concentrator and measured terminal will be stored and the nearest up terminal of this link terminal or the address of concentrator, and the address of each terminal on stored energy descending all individual paths of communicating by letter with this link terminal;
If d. within the predetermined time, do not receive from the replying of tested terminal, represent that the route of this terminal is worked out still mistake, be the fault terminal with this terminal iidentification again;
E. take turns test through second, possible some original fault terminal is identified can be according to new routing table and concentrator reliable communication, and remaining fault terminal according to new routing table still can not with the concentrator reliable communication;
For the fault terminal that still exists, repeat above-mentioned steps, until all terminals can with the concentrator reliable communication, at last the routing table that generates is deposited in the second address table of concentrator, this moment, the second address table of all terminal was all stored and the nearest up terminal of this terminal or the address of concentrator, and had stored the address of each terminal on descending all individual paths of this terminal; After test is completed, no longer comprise the link terminal address during transfer of data in Frame, only comprise source address and purpose terminal address, the length of Frame shortens in the time of will be than test, and transmission efficiency is higher.
2. the trunking method each other of a kind of wireless automatic meter recording system according to claim 1, it is characterized in that the wireless automatic meter recording system that uses comprises a central station, is under the jurisdiction of a plurality of concentrators, a plurality of terminals that are under the jurisdiction of each concentrator and the some user's electric energy meters that are connected by wired mode with each terminal of central station, each concentrator and terminal in this system have the ability of transmitting/receiving wireless signal, and its transmission range is not more than 100 meters.
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| CN105185075A (en) * | 2015-08-05 | 2015-12-23 | 北京智芯微电子科技有限公司 | Gas meter communication networking method and system |
| CN105517092A (en) * | 2015-12-15 | 2016-04-20 | 珠海中慧微电子股份有限公司 | Meter reading method capable of automatically adjusting meter reading path |
| CN105592128A (en) * | 2014-11-14 | 2016-05-18 | 财团法人资讯工业策进会 | Intelligent electric meter deployment management system |
| CN107743047A (en) * | 2017-10-26 | 2018-02-27 | 北方民族大学 | A kind of wireless directional relay communication means and system |
| CN107770075A (en) * | 2017-09-29 | 2018-03-06 | 南京林洋电力科技有限公司 | A kind of high efficiency meter register method based on routing table |
| CN109374937A (en) * | 2018-12-06 | 2019-02-22 | 广东电网有限责任公司 | A kind of electric energy metering device, system and method |
| CN109922466A (en) * | 2019-03-25 | 2019-06-21 | 深圳市联智物联网科技有限公司 | A method of realizing directional data access in multinode wireless transmitting system |
| CN110035470A (en) * | 2019-03-25 | 2019-07-19 | 深圳市联智物联网科技有限公司 | A kind of node device for realizing directional data access in multinode wireless transmitting system |
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| CN103413426A (en) * | 2013-08-19 | 2013-11-27 | 孙蕾 | Multi-analog-acquisition intelligent power concentrator |
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Application publication date: 20130508 |