CN106935008B - Ad hoc network method of meter reading system - Google Patents
Ad hoc network method of meter reading system Download PDFInfo
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- CN106935008B CN106935008B CN201511005294.8A CN201511005294A CN106935008B CN 106935008 B CN106935008 B CN 106935008B CN 201511005294 A CN201511005294 A CN 201511005294A CN 106935008 B CN106935008 B CN 106935008B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 75
- 230000000694 effects Effects 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000011156 evaluation Methods 0.000 claims abstract description 11
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 8
- 230000006855 networking Effects 0.000 claims description 11
- 238000012896 Statistical algorithm Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
Abstract
A meter reading system ad hoc network method comprises the following steps: according to whether the meter is matched with a specific concentrator or not, the meter is divided into a free state and a registered state; in the table searching process of the concentrator, the concentrator captures a meter with good communication effect according to a set communication effect evaluation algorithm, so that the meter is converted from a free state to a registration state; and synchronizing the master station with the concentrator, wherein the meter in the registration state does not respond to the table finding requests of other concentrators. The invention can greatly reduce the labor cost of system maintenance.
Description
Technical Field
The invention relates to a centralized meter reading system, in particular to a method for ad hoc network of the centralized meter reading system.
Background
The existing meter reading system, for example, a power meter reading system generally adopts a concentrator to manage meters, uplink communication of the concentrator adopts modes such as GPRS and the like to communicate with a master station, downlink communication of the concentrator can select various communication modes such as P L C/RF/485 to communicate with the meters, P L C communication has the advantages that a power line is well erected and rewiring is not needed, the defects that interference on the power line is more and the communication effect is affected are overcome, the communication effect is good and bad, the communication effect is related to distance and interference strength, the occurrence time of the interference is not regular, the communication effect can be affected anytime and anywhere, in order to prevent mutual interference, only one concentrator management meter is generally installed under one transformer, the transformers are not mutually isolated and not interfered, the concentrator and the meter communication need to be firstly configured into the concentrator, most of the work is completed manually at present, field installation personnel record the corresponding relationship between the meters and the concentrator, after checking information, the meter information is issued into the concentrator, the centralized and the networking mode of the concentrator is firstly, the work is completed manually, the field installation personnel record the corresponding relationship between the meter and the centralized, and the centralized work is difficult to check if the centralized, the centralized work is carried out, the centralized and the centralized work is difficult, the centralized work is difficult, the problems of the centralized management of the centralized work of the centralized management of the large meter are solved, even if the large meter reading line, the large meter reading is not easy, the large meter reading is found, the large meter reading line, the problems of the large meter reading is found, the problem of the manual reading is found, the early-centralized work of the manual reading is found, the manual reading line is found, the manual reading system is found, the manual reading line.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a meter reading system ad hoc network method, which can greatly reduce the labor cost for system maintenance.
The invention provides a meter reading system ad hoc network method aiming at the technical problems, which comprises the following steps: according to whether the meter is matched with a specific concentrator or not, the meter is divided into a free state and a registered state; in the table searching process of the concentrator, the concentrator captures a meter with good communication effect according to a set communication effect evaluation algorithm, so that the meter is converted from a free state to a registration state; and synchronizing the master station with the concentrator, wherein the meter in the registration state does not respond to the table finding requests of other concentrators.
In some embodiments, further comprising: when the communication effect between the concentrator and the meter in the registration state is deteriorated, the concentrator releases the meter to make the meter convert from the registration state to the free state.
In some embodiments, further comprising: the master station maintains the network corresponding relation between the concentrator and the meters, and can match the meters in a free state for a long time to a specific concentrator.
In some embodiments, the master station may read the communication effectiveness assessment and the last occurring time record of each concentrator for these meters in the long-term free state to match the concentrator with these meters in the long-term free state.
In some embodiments, the table finding process of the concentrator is divided into two stages, the first stage is to perform continuous table finding for a set time length when no table meter in a registration state exists under the name of the concentrator, and the second stage is to perform regular table finding for a set interval after the first stage is finished.
In some embodiments, the set period of time is 24 hours and the set interval is 1 hour.
In some embodiments, the communication effect evaluation algorithm is a PING command-based communication success rate statistical algorithm, wherein M rounds are performed, N times are performed in each round, at least 1 hour is performed in each round, and the success rate is qualified when reaching a set standard; and the time interval between each round is increased to avoid contingency.
In some embodiments, the concentrator maintains a list of profile information for the meter; when the concentrator detects that the meter of the key is not set by the master station within the set time range, the concentrator actively reports the event to the master station.
In some embodiments, the meter in the registered state automatically becomes free without any request within a set time, allowing the concentrator to re-register.
In some embodiments, a carrier communication mode is adopted between the meter and the concentrator, and multiple concentrators are allowed in the range of the same transformer.
Compared with the prior art, the meter reading system ad hoc network method can capture the meter with good communication effect by skillfully setting the meter searching process of the concentrator, so that the meter becomes the register meter under the name of the concentrator, and then the meter and the concentrator under the whole meter reading system can automatically form a network by synchronizing the information of the concentrator and the master station, so that the labor cost of system maintenance can be greatly reduced.
Drawings
FIG. 1 is a block diagram illustration of a method of ad hoc networking of meter reading systems of the present invention.
FIG. 2 is a schematic diagram of a networking flow of a master station in the meter reading system ad hoc networking method of the present invention.
FIG. 3 is a schematic diagram of a networking flow of a concentrator in the meter reading system ad hoc networking method.
Detailed Description
The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a block diagram of a meter reading system ad hoc network method of the present invention, which includes 101, according to whether a meter is matched with a specific concentrator, dividing the meter into a free state and a registered state, 102, in the meter finding process of the concentrator, the concentrator captures the meter with good communication effect according to a set communication effect evaluation algorithm, and converts the meter from the free state to the registered state, 103, synchronizing information between a master station and the concentrator, the meter in the registered state does not respond to the meter finding request of other concentrators, 104, after the communication effect of the concentrator and the meter in the registered state is deteriorated, the concentrator releases the meter, and converts the meter from the registered state to the free state, 105, the master station maintains a network correspondence relationship between the concentrator and the meter, and can match the meter in the free state to the specific concentrator, the meter in the long term can be matched with the specific concentrator, the meter of the present invention can be a water meter, an electricity meter, a gas meter, a heat meter, the concentrator can be a communication with the communication range of the meter in the centralized state, the concentrator, the communication range of the meter can be changed into a wireless communication range of a wireless communication network, L, the communication range of the meter, the concentrator, the communication range of the meter can be changed into a wireless communication range of the centralized meter, the communication system, the communication range of the meter, the concentrator, the communication range of the concentrator, the communication range of the communication range.
The master station can read the communication effect evaluation and the latest occurrence time record of each concentrator on the meters in the free state for a long time so as to match the concentrator with the meters in the free state for a long time. The table finding process of the concentrator is divided into two stages, the first stage is to carry out continuous table finding with set duration when no table meter in a registration state exists under the name of the concentrator, and the second stage is to change to carry out conventional table finding with set intervals after the first stage is finished. Preferably, the set time period is 24 hours, and the set interval is 1 hour.
The concentrator maintains a file information list of the meter; when the concentrator detects that the meter of the key is not set by the master station within the set time range, the concentrator actively reports the event to the master station. The meter in the registration state automatically changes to the free state without receiving any request within the set time, and the concentrator is allowed to register again. The communication effect evaluation algorithm is a communication success rate statistical algorithm based on PING commands, wherein M rounds are carried out, N times are carried out in each round, at least 1 hour is carried out in each round, and the success rate is qualified when the success rate reaches a set standard; and the time interval between each round is increased to avoid contingency.
It is worth mentioning that if the communication effect of the meter found by the concentrator(s) is not good and does not reach the evaluation standard of the concentrator, the meter is in a free meter state for a long time, the master station can execute the process of obtaining the list of meters which are qualified and unqualified in the concentrator, the list of meters which are unqualified in the concentrator is read back, the master station can properly reduce the standard according to the Ping success rate data of the meters in each concentrator and the latest time record, and selects the concentrator with the best communication effect to perform matching registration.
The method has the advantages that: 1. the meter in the system automatically registers and cancels in different concentrators along with the change of communication effect, and keeps information synchronization with the master station; 2. the automatic process greatly reduces the workload of manually maintaining the information and improves the production efficiency; 3. the master station can carry out matching processing on the ammeter with unqualified communication and the concentrator, so that the whole system is more complete; 4. errors caused by a large amount of information entry can be avoided.
Hereinafter, each aspect of the method of the present invention will be described in detail.
Referring to fig. 2, fig. 2 is a schematic diagram of a networking flow of a master station in the meter reading system ad hoc networking method of the present invention. It substantially comprises the following measures:
1. production information (table numbers, keys and the like) of the meter and the concentrator is imported into the master station in advance, and only the meter and the concentrator which are recorded in the master station are legal devices;
2. after the master station receives an event that the concentrator finds a meter with qualified communication (see step 201: the concentrator 1 finds a new meter), a background task for acquiring a meter list with qualified communication and unqualified communication in the concentrator is generated through a merging and processing event processing flow (step 202) (see step 203: the master station generates a new meter task for reading the concentrator 1);
3. the register (responsible for issuing the order from the master station to the concentrator) executes the background task of obtaining the list of meters which are qualified and unqualified in communication in the concentrator, reads back the list of meters which are qualified in communication in the concentrator (see step 204), and gives the list to the process of binding the meters and the concentrator in the master station for processing;
4. a process of finding a new table in the concentrator, generating a task of registering the table in the concentrator, and checking whether another concentrator is corresponding to the table (see step 205), if so, generating an event that the table is registered by other concentrators, reporting to the master station (see step 206), and generating a task of deleting the table file in the original concentrator and registering the table in the concentrator, and if the table is not found in the master station, reporting the found event that the table is illegal;
5. the registrar performs the task of registering the meter in the concentrator so that the concentrator 1 registers a new meter (see step 207), and, after success, performs a process of binding the meter and the concentrator in the master station and updates the task status (see step 208);
6. the registrar performs the task of logging off the meters in the concentrator (see step 209), and after success, performs a process of binding the meters and the concentrator in the master station (see step 210), and updates the task status.
Referring to fig. 3, fig. 3 is a schematic diagram of a networking flow of a master station in the meter reading system ad hoc networking method of the present invention. It substantially comprises the following steps:
1. as long as the concentrator detects that the meter information is empty (see step 301), starting a process of continuously searching the meter for 24 hours (see step 302), and recording the starting execution time, wherein only the process of searching the meter and the receiving of the uplink command are carried out during the process, and other tasks are all terminated;
2. the concentrator evaluates the communication effect of the found meter, and the Ping takes multiple rounds, and enlarges the time interval between each round to avoid the contingency;
3. triggering the concentrator to send an event report condition that the concentrator finds a meter with qualified communication (see step 303): the concentrator detects whether the meter list which is qualified in communication in the concentrator has a meter which is not provided with the key by the master station every day, if so, the concentrator actively reports an event that the concentrator finds the meter which is qualified in communication once (see step 304); specifically, when a new table is found, the table is reported and sent over half an hour (see step 305), and the process is controlled by the concentrator;
4. after continuously searching the table for 24 hours, the concentrator enters a conventional table searching state (see step 306, once every hour) so as to ensure that the concentrator can find and report to the master station in time after a new table is accessed into the network; it can be seen that the concentrator needs to have several life cycles to control, the following are several time points: the concentrator full table-finding process is carried out for 0-24 hours; a table finding process every hour for more than 24 hours; the meter with unqualified communication success rate after the Ping rounds is counted, and the concentrator release meter is counted as a free meter;
5. after receiving the archive setting command (key, data reading option and other parameters) of the master station to the meters, the concentrator sets the corresponding meters in the meter list qualified in communication in the concentrator to a non-reporting state and maintains a meter archive information list (see step 307);
6. the master station can intervene in the starting/stopping of the process of the concentrator table finding;
7. if the meter in the meter list with unqualified communication in the concentrator can not be contacted in more than x minutes, the meter is marked as lost connection and is not in the qualified list;
8. the event that the reporting node which does not have any communication in the meter y minutes in the meter file of the concentrator is unreachable is sent to the master station for processing;
9. the registry meter does not receive any request within 50 (settable) hours, automatically becomes a free meter, and allows the concentrator to re-register;
10. communication effect evaluation algorithm: after the round of table finding is finished, the concentrator needs to test the communication effect of the newly found table and determine which tables are qualified in communication, and the specific method comprises the following steps:
a) testing success rate (success number/total number) by using Ping command, and determining which tables are suitable for the concentrator to manage according to the success rate (Ping is used by default, and table reading numbers, object OBIS lists and the like can be used, because keys are not needed for the communication);
b) the concentrator accumulates the success number and the total number of the historical Ping (), once a certain threshold (adjustable) is reached, for example, 80% of the historical Ping () is regarded as a meter which is qualified for communication, and the meter list which is qualified for communication in the concentrator is marked as a qualified meter;
c) the concentrator detects that a qualified meter exists in a meter list of qualified communication in the concentrator in a certain period (the detection period is at least 30 minutes to avoid avalanche caused by the fact that a task cannot be done), namely, a meter event of qualified communication is reported to a master station;
d) the list read by the master station is a meter list qualified in communication, and meter information is sent to the concentrator;
e) after the concentrator receives the meter information sent by the master station, the meter information which is qualified in communication in the meter list which is qualified in communication in the concentrator is modified, and the meter file information of the concentrator is formally entered;
f) after the table searching process is finished, if the communication success rate of the new table found in the round does not reach the standard, the table needs to be cancelled, and the table is allowed to be registered by other concentrators;
compared with the prior art, the meter reading system ad hoc network method can capture the meter with good communication effect by skillfully setting the meter searching process of the concentrator, so that the meter becomes the register meter under the name of the concentrator, and then the meter and the concentrator under the whole system can automatically form a network by synchronizing the information of the concentrator and the master station, so that the labor cost of system maintenance can be greatly reduced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the embodiments of the present invention, and those skilled in the art can easily make various changes and modifications according to the main concept and spirit of the present invention, so the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A meter reading system ad hoc network method is characterized by comprising the following steps: according to whether the meter is matched with a specific concentrator or not, the meter is divided into a free state and a registered state; in the table finding process of the concentrator, the concentrator captures a meter with good communication effect according to a set communication effect evaluation algorithm to enable the meter to be converted from a free state to a registration state, wherein the communication effect evaluation algorithm is a communication success rate statistical algorithm based on a PING command, N times are carried out in M rounds, each round is at least 1 hour apart, and the success rate reaches a set standard and is qualified; and the time interval between each round is enlarged to avoid the contingency; and synchronizing the master station with the concentrator, wherein the meter in the registration state does not respond to the table finding requests of other concentrators.
2. The meter reading system ad hoc network method according to claim 1, further comprising: when the communication effect between the concentrator and the meter in the registration state is deteriorated, the concentrator releases the meter to make the meter convert from the registration state to the free state.
3. The meter reading system ad hoc network method according to claim 2, further comprising: the master station maintains the network corresponding relation between the concentrator and the meters, and can match the meters in a free state for a long time to a specific concentrator.
4. The meter reading system ad hoc network method according to claim 3, wherein the master station can read the communication effect evaluation and the recent time record of the concentrator on the meters in the free state for a long time to match the concentrator with the meters in the free state for a long time.
5. The method of ad hoc networking for meter reading system according to claim 1, wherein the table finding process of the concentrator is divided into two stages, the first stage is to perform continuous table finding with a set duration when there is no table meter in a registered state under the name of the concentrator, and the second stage is to perform regular table finding with a set interval after the first stage is finished.
6. The meter reading system ad hoc network method according to claim 5, wherein the set time period is 24 hours, and the set interval is 1 hour.
7. The meter reading system ad hoc network method according to claim 1, wherein the concentrator maintains a list of the meter's archival information; when the concentrator detects that the meter of the key is not set by the master station within the set time range, the concentrator actively reports the event to the master station.
8. The meter reading system ad hoc network method according to claim 1, wherein the meter in the registration state automatically changes to a free state without receiving any request within a set time, allowing the concentrator to re-register.
9. The method of claim 1, wherein the meter and the concentrator are in carrier communication, and multiple concentrators are allowed within the same transformer.
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| CN113873634B (en) * | 2021-09-11 | 2024-03-29 | 杭州步聚信息科技有限公司 | Protocol self-adaptive registration method, system and storage medium using wireless mesh |
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| CA2308819A1 (en) * | 2000-05-15 | 2001-11-15 | Roderick Michael Johnson | Self organizing network architecture |
| CN101236693B (en) * | 2007-02-01 | 2011-08-10 | 上海久隆电力（集团）有限公司 | Intelligent meter reading system |
| CN102468986B (en) * | 2010-11-04 | 2015-09-16 | 国家电网公司 | The method of testing of power information acquisition system and system, main website |
| CN102299977A (en) * | 2011-08-08 | 2011-12-28 | 深圳市金正方科技有限公司 | Method for automatic register of electric energy meter by collector and collector |
| CN202995998U (en) * | 2012-12-25 | 2013-06-12 | 青岛积成电子有限公司 | Automatic meter-reading system |
| CN103078935B (en) * | 2012-12-31 | 2015-07-01 | 瑞斯康微电子（深圳）有限公司 | Automatic registration algorithm for carrier terminal of low-voltage power distribution network |
| CN203179254U (en) * | 2013-03-14 | 2013-09-04 | 深圳市成星自动化系统有限公司 | Automatic wireless ad hoc network meter reading system |
| CN203433667U (en) * | 2013-09-18 | 2014-02-12 | 国家电网公司 | Broadband carrier meter-reading module based on power line carrier communication |
| US9148845B2 (en) * | 2013-09-23 | 2015-09-29 | Mitsubishi Electric Research Laboratories, Inc. | Method for discovering neighboring nodes in wireless networks |
| CN103500496B (en) * | 2013-10-10 | 2017-03-22 | 华立科技股份有限公司 | Electric power data multi-way communication system and multi-way centralized meter reading system |
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| 安森美半导体电力线载波芯片的特点及其应用;刘耀辉;《电子与电脑》;20100930(第9期);第36-41页 * |
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