CN112466107A

CN112466107A - Wireless passive wake-up grouping meter reading system and method and grouping point reading and group reading method

Info

Publication number: CN112466107A
Application number: CN202011333547.5A
Authority: CN
Inventors: 李良; 姚婵娟; 谭巍; 舒杰; 余子奇; 曾鹏程
Original assignee: CHONGQING SHANCHENG GAS EQUIPMENT CO LTD
Current assignee: CHONGQING SHANCHENG GAS EQUIPMENT CO LTD
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-03-09

Abstract

The invention discloses a wireless passive awakening grouping meter reading system and method and a grouping point reading and group reading method, which mainly comprise the following steps: s1, dividing the meter into a plurality of groups to be read; s2, selecting one group of the groups to be read as the current meter reading group; s3, sending an awakening frame to the current meter reading group to awaken the meters in the current meter reading group; s4, sending a meter reading frame to the meters in the current meter reading group; s5, receiving data returned by the meter, and completing meter reading operation of the current meter reading group; and S6, executing S3 to S5 on the group to be read, which does not finish the meter reading operation, until the meter reading operation of all the groups to be read is finished. By grouping meter reading, the power consumption caused by false awakening is reduced, and because data collision cannot occur during communication between different groups, meters of different groups can be simultaneously read, the meter reading time is shortened, and the meter reading efficiency is improved; different meter reading modes are selected according to the number of the meters in each group, so that the meter reading efficiency is improved; by using broadcast wakeup in the same group, the time for each watch to wake up separately is reduced.

Description

Wireless passive wake-up grouping meter reading system and method and grouping point reading and group reading method

Technical Field

The invention relates to the technical field of wireless meter reading, in particular to a wireless passive awakening grouping meter reading system and method and a grouping point reading and group reading method.

Background

The wireless meter reading system is applied to data acquisition of water meters, electric meters and gas meters in a community, and generally comprises a concentrator, a collector (an acquisition terminal and a handset), a communication channel and a background. At present, two methods are generally adopted to read the meter, the first method is to wake up the meter one by one to wait for the data reported by the meter end, so the meter reading speed is slow in the meter reading method; the second is to wake up the meter by adopting the long preamble, and the meter end reports data from different frequency points and frequency bands, so that the meter reading mode easily causes the error wake-up of the meter end, increases the function consumption, and makes the reported data easily generate collision.

Disclosure of Invention

Objects of the invention

In order to overcome at least one defect of the prior art, the power consumption caused by mistaken awakening is reduced by grouping meter reading, and because data collision cannot occur during communication among different groups, meters of different groups can be simultaneously read, the meter reading time is shortened, and the meter reading efficiency is improved; different meter reading modes are selected according to the number of the meters in each group, so that the meter reading efficiency is improved; the invention discloses the following technical scheme by using broadcast awakening in the same group to reduce the time for awakening each meter independently.

(II) technical scheme

As a first aspect of the invention, the invention discloses a wireless passive wake-up packet meter reading method, which comprises the following steps:

s1, dividing the meter into a plurality of groups to be read;

s2, selecting one group of the group to be read as the current reading group;

s3, sending an awakening frame to the current meter reading group to awaken the meters in the current meter reading group;

s4, sending a meter reading frame to the meters in the current meter reading group;

s5, receiving data returned by the meter, and completing meter reading operation of the current meter reading group;

and S6, executing S3 to S5 on the group to be meter-read, of which the meter reading operation is not finished, until the meter reading operation of all the groups to be meter-read is finished.

In a possible implementation manner, in S1, the dividing the meter into a plurality of groups to be read specifically includes:

and taking the meter number mantissas of the meters as grouping basis, and dividing the meters with the same meter number mantissas into the group to be read.

In a possible implementation manner, the dividing the meter into a plurality of groups to be read in S1, and then further includes:

and selecting the frequency point with the serial number corresponding to the table number mantissa of the table as the working frequency point of the table by taking the table number mantissa of the table as the basis of the frequency point serial number.

In a possible implementation manner, the taking the table number mantissa of the table as the basis of the frequency point number specifically includes: taking the mantissa of the table number of the table as the digital part in the frequency point number;

the frequency point with the number corresponding to the mantissa of the table number of the table is selected as the working frequency point of the table, and the method specifically comprises the following steps: and selecting a frequency point with the data part in the serial number being the same as the table number mantissa of the table as a working frequency point of the table.

In a possible implementation manner, in S3, before the sending the wakeup frame to the current meter reading group, the method further includes:

and selecting the frequency points corresponding to the table number mantissas of the tables in the current meter reading group and the frequency point numbers.

In a possible implementation manner, in the S3, before the sending the wakeup frame to the current meter reading group, the method further includes:

and judging the number of the meters in the current meter reading group, executing grouping point meter reading when the number of the meters is 1, and executing broadcasting group meter reading when the number of the meters is more than 1.

In a possible implementation manner, in S3, after waking up the table in the current transcription set, the method further includes:

and setting the waiting time for receiving data after waking up the meter.

In a possible implementation manner, the setting of the waiting time for receiving data after waking up the meter specifically includes:

when the grouped point reading meter reading is executed, the receiving waiting time after the meter is awakened is set to be T1;

T1＝T0+T3；

t0 is the time to send wakeup frame;

t3 represents the meter reading time of each meter in the current meter reading group;

when the broadcast group meter reading is executed, setting the receiving waiting time after the meter is awakened as T2;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

and n represents the number of the meters in the current meter reading group.

In a possible implementation manner, when a packet point meter reading operation is performed, in S5, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

if the data returned by the meter is received within the time T2, completing the meter reading operation of the current meter reading group, and if the data returned by the meter is not received within the time T2, performing a point reading and complementary reading operation;

when the broadcast group meter reading is executed, in S5, the receiving the data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

and if the data returned by the meter is received within the time T3, completing the meter reading operation of one meter in the current meter reading group, and if the data returned by the meter is not received within the time T3, performing the judgment operation of the meter reading frame in the current meter reading group.

In a possible implementation manner, after receiving data returned by the meter when performing a packet meter reading operation and/or when performing a broadcast group meter reading operation, the method further includes:

the data is saved or updated.

In a possible implementation manner, when performing a packet meter reading operation, the receiving data returned by the meter further includes:

the meter automatically enters a sleep state.

In a possible implementation manner, the point-reading complementary reading operation specifically includes:

when the number of times of no data return is not more than 2, executing S4;

when the number of times of no data return is 3, executing S3;

and when the number of times of no data return is 4, marking the meter as meter reading failure.

In a possible implementation manner, the operation of determining the meter reading frame in the current meter reading group specifically includes:

when all the meter reading frame commands in the current meter reading group are sent, sending a broadcast sleep frame;

and when the meter reading frame commands in the current meter reading group are not all sent, executing S4.

In a possible implementation manner, when the broadcast group meter reading is executed, and when all the meter reading frame commands in the current meter reading group are sent, after a broadcast sleep frame is sent, the method further includes:

judging whether all meter reading frame commands in all the to-be-read meter groups are completely sent;

when all the meter reading frame commands in the group to be read are not completely sent, executing S3;

and when all the meter reading frame commands in the set to be read are completely sent, performing group reading and complementary reading operation.

In a possible implementation manner, the group-copy complementary copy operation specifically includes:

when the number of times that all the meter reading frame commands in all the to-be-read meter groups are completely sent is judged to be not more than 2, S4 is executed;

and when the number of times of sending all meter reading frame commands in all the meter reading groups to be read is judged to be 3, marking the meter reading failure.

As a second aspect of the present invention, the present invention also discloses a wireless passive wake-up packet meter reading system, which includes:

concentrator, a plurality of table utensil, wherein:

the concentrator comprises a grouping module, a selection module, a first sending module, a first receiving module and a data processing module;

the meter comprises a second receiving module and a second sending module;

the grouping module is used for dividing the meter into a plurality of groups to be read;

the selection module is used for selecting one group of the groups to be read as the current meter reading group;

the first sending module is used for sending an awakening frame to the current meter reading group, awakening the meters in the current meter reading group and sending meter reading frames to the meters in the current meter reading group;

the first receiving module is used for receiving the data returned by the meter;

the data processing module is used for storing and updating data;

the second receiving module is used for the command sent by the concentrator;

the second sending module is used for sending data by the meter.

In a possible implementation manner, the grouping module divides the meter into a plurality of groups to be checked, and specifically includes:

In a possible implementation manner, the grouping module divides the meter into a plurality of groups to be checked, and further includes:

In a possible implementation manner, the sending, by the first sending module, a wake-up frame to the current meter reading group further includes:

and the selection module selects the frequency points corresponding to the table number mantissas of the tables in the current meter reading group and the frequency point numbers.

In a possible implementation manner, the concentrator further includes a determining module, where the determining module is configured to determine the number of the meters in the current meter reading group, and the sending, by the first sending module, the wakeup frame to the current meter reading group further includes:

In a possible implementation manner, the first sending module wakes up a meter in the current meter reading group, and further includes:

and setting the waiting time for receiving data after waking up the meter.

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

and n represents the number of the meters in the current meter reading group.

In a possible implementation manner, when a packet point meter reading operation is performed, the first receiving module receives data returned by the meter, and completes the meter reading operation on the current meter reading group, which specifically includes:

when the broadcast group meter reading is executed, the first receiving module receives data returned by the meter, and completes the meter reading operation of the current meter reading group, which specifically comprises:

In a possible implementation manner, after the first receiving module receives data returned by the meter when the packet meter reading operation is performed and/or when the broadcast group meter reading operation is performed, the method further includes:

and the data processing module stores or updates the data received by the first receiving module.

In a possible implementation manner, when performing a packet meter reading operation, the receiving, by the first receiving module, data returned by the meter, further includes:

the meter automatically enters a sleep state.

In a possible implementation manner, the concentrator performs a point copy and complementary copy operation, specifically including:

when the number of times of no data return is not more than 2, the first sending module sends a meter reading frame;

when the number of times of no data return is 3, the selection module selects the frequency point corresponding to the table number mantissa of the table in the current meter reading group and the frequency point number;

and when the number of times of no data return is 4, the concentrator marks the meter as meter reading failure.

In a possible implementation manner, the determining module is configured to determine a meter reading frame in the current meter reading group, and specifically includes:

when all the meter reading frame commands in the current meter reading group are sent, the first sending module sends a broadcast sleep frame;

and when the meter reading frame commands in the current meter reading group are not all sent, the first sending module sends meter reading frames.

In a possible implementation manner, when the concentrator executes the broadcast group meter reading, and when all the meter reading frame commands in the current meter reading group are sent, after sending a broadcast sleep frame, the method further includes:

the judging module is used for judging whether all the meter reading frame commands in all the to-be-read meter groups are completely sent;

when all the meter reading frame commands in the meter reading group to be read are not completely sent, the selection module selects the frequency point corresponding to the meter number mantissa and the frequency point number of the meter in the current meter reading group;

In a possible implementation manner, the executing, by the concentrator, the group-copy complementary copy operation specifically includes:

when the number of times of sending all meter reading frame commands in all the meter reading groups to be read is judged to be not more than 2, executing the first sending module to send a meter reading frame;

As a third aspect of the present invention, the present invention further discloses a concentrator for wirelessly and passively waking up packet meter reading, including:

the device comprises a grouping module, a selection module, a first sending module, a first receiving module, a data processing module, a judgment module and a setting module;

the data processing module is used for storing and updating data;

the judging module is used for judging the number of the meters in the current meter reading group, judging whether all the meter reading frame commands in all the meter reading groups to be read are completely sent or not, and judging the meter reading frames in the current meter reading group;

the setting module is used for setting the waiting time for receiving data after awakening the meter.

In a possible implementation manner, the sending, by the first sending module, the wake-up frame to the current meter reading group further includes:

the judging module judges the number of the meters in the current meter reading group, and executes grouping point meter reading when the number of the meters is 1, and executes broadcast group meter reading when the number of the meters is more than 1.

and setting the waiting time for receiving data after waking up the meter.

In a possible implementation manner, the setting module sets a waiting time for receiving data after waking up the meter, specifically including:

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

and n represents the number of the meters in the current meter reading group.

the meter automatically enters a sleep state.

In a possible implementation manner, when the concentrator performs the broadcast group meter reading, and when all the meter reading frame commands in the current meter reading group are sent, after sending a broadcast sleep frame, the method further includes:

As a fourth aspect of the invention, the invention also discloses a wireless passive awakening packet point meter reading method, which comprises the following steps:

s100, judging the number of meters in the current meter reading group, and executing grouping point meter reading when the number of the meters is 1;

s200, selecting the frequency point corresponding to the meter number mantissa and the frequency point number of the meter in the current meter reading group, sending an awakening frame to the current meter reading group, and awakening the meter in the current meter reading group;

s300, sending a meter reading frame to the meters in the current meter reading group;

s400, receiving data returned by the meter, and completing meter reading operation of the current meter reading group;

and S500, executing S200 to S400 on the group to be meter-read without the meter-reading operation until the meter-reading operation on all the groups to be meter-read is completed.

In a possible implementation manner, the selecting the frequency point corresponding to the table number mantissa and the frequency point number of the table in the current meter reading group in S200 specifically includes:

In a possible implementation manner, in S200, after waking up the table in the current transcription group, the method further includes:

setting a waiting time for receiving data after waking up the meter, wherein the waiting time is set to T1;

T1＝T0+T3；

t0 is the time to send wakeup frame;

and T3 represents the meter reading time of each meter in the current meter reading group.

In a possible implementation manner, in S400, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

and if the data returned by the meter is received within the time T2, completing the meter reading operation of the current meter reading group, and if the data returned by the meter is not received within the time T12, performing a point reading and complementary reading operation.

In a possible implementation manner, in S400, after receiving the data returned by the meter, the method further includes:

the data is saved or updated.

the meter automatically enters a sleep state.

when the number of times of no data return is not more than 2, executing S300;

when the number of times of no data return is 3, executing S200;

As a fifth aspect of the present invention, the present invention further discloses a wireless passive wake-up packet broadcast group meter reading method, which includes the following steps:

s600, judging the number of meters in the current meter reading group, and executing broadcast group meter reading when the number of the meters is more than 1;

s700, selecting the frequency point corresponding to the meter number mantissa and the frequency point number of the meter in the current meter reading group, sending an awakening frame to the current meter reading group, and awakening the meter in the current meter reading group;

s800, sending a meter reading frame to the meters in the current meter reading group;

s900, receiving data returned by the meter, and completing meter reading operation of the current meter reading group;

and S1000, executing S700 to S900 on the group to be meter-read which does not finish the meter-reading operation until the meter-reading operation on all the groups to be meter-read is finished.

In a possible implementation manner, the selecting the frequency point corresponding to the table number mantissa and the frequency point number of the table in the current meter reading group in S700 specifically includes:

In a possible implementation manner, in S700, after waking up the table in the current transcription group, the method further includes:

setting a waiting time for receiving data after waking up the meter, wherein the waiting time is set to T2;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

and n represents the number of the meters in the current meter reading group.

In a possible implementation manner, in S900, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

In a possible implementation manner, in S900, after receiving the data returned by the meter, the method further includes:

the data is saved or updated.

the meter automatically enters a sleep state.

and when the meter reading frame commands in the current meter reading group are not all sent, executing S800.

In a possible implementation manner, after the sending of the broadcast sleep frame when all the meter reading frame commands in the current meter reading group are sent, the method further includes:

when all the meter reading frame commands in the group to be read are not completely sent, executing S700;

when the number of times that all the meter reading frame commands in all the to-be-read-meter group are completely sent is judged to be not more than 2, S800 is executed;

(III) advantageous effects

The invention discloses a wireless passive awakening grouping meter reading system and method and a grouping point reading and group reading method, which have the following beneficial effects:

1. the method comprises the steps of dividing a meter to be read into a plurality of groups to be read, sending a meter reading frame to the awakened meter after the awakening frame is sent to the group to be read, waiting for the meter to return data, completing the meter reading operation of the meter to be read, and carrying out the meter reading process by firstly grouping the meters, so that the power consumption caused by mistaken awakening is reduced.

2. The table number mantissas of the tables are used as grouping basis, and the tables with the same table number mantissas are divided into a group, so that the grouping management is convenient.

3. The method comprises the steps of taking the table number mantissa of a table as a basis for numbering frequency points, selecting the frequency point with the number corresponding to the table number mantissa of the table as a working frequency point of the table, and generating the frequency point according to the table number of the frequency point when the frequency point leaves a factory and writes the table number.

4. Different meter reading processes are executed according to different quantities of the grouped meters in each group, and meter reading efficiency is improved.

5. By using broadcast wakeup in the same group, the time for each watch to wake up separately is reduced.

6. When group meter reading is awakened by utilizing packet broadcasting, in order to avoid the situation that the receiving power consumption of a meter which is finally read at each time is larger due to longer receiving waiting time, the meter reading operation is required to be carried out on the meter numbers in a positive and negative sequence by using adjacent two meter reading frames.

Drawings

The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present invention and should not be construed as limiting the scope of the present invention.

FIG. 1 is a schematic flow chart of a wireless passive wake-up packet meter reading method disclosed in the present invention;

FIG. 2 is a schematic flow chart illustrating additional steps included in step S3 according to the present disclosure;

FIG. 3 is a schematic flow chart of the present disclosure after receiving the return data when performing a packet point-to-point meter reading;

FIG. 4 is a schematic structural diagram of a wireless wake-up group meter reading system disclosed in the present invention;

FIG. 5 is a schematic structural diagram of a concentrator for wireless wake-up packet meter reading according to the present invention;

FIG. 6 is a schematic flow chart of a wireless wake-up packet point meter reading method disclosed in the present invention;

FIG. 7 is a schematic flow chart of a point copy make-up operation disclosed in the present invention;

FIG. 8 is a schematic flow chart of a method for reading a meter by a group broadcast with wireless wake-up according to the present invention;

FIG. 9 is a schematic flow chart illustrating a method for performing broadcast group meter reading for one group to be read according to the present disclosure;

FIG. 10 is a flow chart of a group complementary copy operation disclosed in the present invention.

Reference numerals:

100 a concentrator; 110 a grouping module; 120 a selection module; 130, a judging module; 140 a first sending module; 150 a first receiving module; 160 a data processing module; 200 of a meter; 210 a second receiving module; 220 second sending module.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some embodiments of the present invention, not all embodiments, and features in embodiments and embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

A first embodiment of a wireless passive wake-up packet meter reading method disclosed in the present invention is described in detail below with reference to fig. 1 to 3. The embodiment is mainly applied to wireless meter reading of the gas meter, power consumption caused by false awakening is reduced through grouping meter reading, and because data collision cannot occur during communication among different groups, meters in different groups can be simultaneously read, the meter reading time is reduced, and the meter reading efficiency is improved; different meter reading modes are selected according to the number of the meters in each group, so that the meter reading efficiency is improved; by using broadcast wakeup in the same group, the time for each watch to wake up separately is reduced.

As shown in fig. 1, the present embodiment mainly includes the following steps:

s1, dividing the meter into a plurality of groups to be read;

the meters with the same meter number and the same mantissa are divided into a group to be read, for example, a plurality of meters are in a cell, the meter number and the mantissas of the meters are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, the meters are divided into 10 groups by the meter number and the mantissas of the meters are divided into a group, for example, the meter number of the meter in the group with the meter number and the mantissa of 1 is NO: 12345671, NO: 12345611, NO: 12345621, etc. The table number for each table is written by the manufacturer and each table number is unique.

In step S1, the method specifically includes: the method takes the table number mantissa of the table as the basis of the frequency point number, selects the frequency point with the number corresponding to the table number mantissa of the table as the working frequency point of the table, and specifically comprises the following steps: and taking the table number mantissa of the table as the digital part in the frequency point number, and selecting the frequency point of which the data part in the number is the same as the table number mantissa of the table as the working frequency point of the table.

The frequency point is a table wake-up frequency point, the table wake-up frequency point is divided into 10 groups according to the table number mantissas of the table, the tables with the table number mantissas of 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 work on frequency points F0, F1, F2, F3, F4, F5, F6, F7, F8 and F9 respectively, the 10 groups of frequency points are different and have 1M adjacent intervals, the frequency points are generated according to the table mantissas when the table numbers are written in a factory, and the frequency points are convenient to manage and maintain and do not support modification. Specifically, 10 frequency points are respectively set as F0, F1, F2, F3, F4, F5, F6, F7, F8 and F9, a table with a table number mantissa of 0 corresponds to the frequency point F0, a table with a table number mantissa of 1 corresponds to the frequency point F1, and the like is repeated until a table with a table number mantissa of 9 corresponds to the frequency point F9.

S2, selecting one group of the groups to be read as the current meter reading group;

as shown in fig. 2, step S3 further includes step S30, selecting a frequency point corresponding to the frequency point number and the meter number mantissa of the meter in the current meter reading group. For example, when the mantissa of the table number of the table in the current meter reading group is 1, the selection frequency point F1 is used as the working frequency point of the table in the current meter reading group.

Step S3 further includes step S31, determining the number of meters in the current meter reading group, and if the number of meters is 1, performing packet point meter reading, and if the number of meters is greater than 1, performing broadcast group meter reading. According to the difference of the number of the meters in each group, different meter reading processes are adopted, and the meter reading efficiency is improved.

Step S3 further includes step S32 of setting a waiting time for receiving data after waking up the meter.

Specifically, when the packet point meter reading is executed, the receiving waiting time after the meter is awakened is set to be T1;

T1＝T0+T3；

t0 is the time to send wakeup frame;

when the broadcast group meter reading is executed, the receiving waiting time after the awakening meter is set to be T2;

T2＝T1+T3*n；

wherein, T1 is the time for sending wakeup frame;

and n represents the number of the meters in the current meter reading group.

Wherein the data comprises counter readings, gas meter current readings, date and time, meter status codes, voltage, wireless communication signal strength.

The meter state codes comprise various abnormalities of the meter, such as electricity shortage, clock abnormality, reading abnormality, valve abnormality and the like, and the system end can display various abnormalities according to reported data, so that a gas company can conveniently check and process the abnormalities.

as shown in fig. 3, step S5 further includes S51, when the packet meter reading operation is performed and/or when the broadcast group meter reading is performed, storing or updating the data after receiving the data returned from the meter.

Step S5 further includes S52, when the packet meter reading operation is performed, the meter automatically enters a sleep state upon receiving data returned by the meter.

The method specifically comprises the following steps: when the grouping point reading and meter reading operation is executed, if data returned by the meter are received within the time T2, the meter reading operation on the current meter reading group is completed, and if the data returned by the meter are not received within the time T2, the point reading and complementary reading operation is carried out;

the point reading and complementary reading operation specifically comprises the following steps: when the number of times of no data return is not more than 2, executing step S4; when the number of times of no data return is 3, step S3 is executed; and when the number of times of no data return is 4, marking the meter as meter reading failure.

Specifically, when the packet point-reading meter reading operation is executed, if data returned by the meter is received within time T2, the data is stored or updated, the meter automatically enters a sleep state after responding, if data returned by the meter is not received within time T2, the operation returns to step S4, the first point-reading and complementary-reading operation is performed, if no data is returned, the operation returns to step S4 again, the second point-reading and complementary-reading operation is performed, if no data is returned, the operation returns to step S3, the packet point-reading meter reading operation is executed again, and if no data is returned within time T2, the meter is marked as meter reading failure.

When the broadcast group meter reading is executed, the method specifically comprises the following steps: if the data returned by the meter is received within the time T3, the meter reading operation of one meter in the current meter reading group is completed, and if the data returned by the meter is not received within the time T3, the judgment operation of the meter reading frame in the current meter reading group is carried out;

the judgment operation of the meter reading frame in the current meter reading group specifically comprises the following steps: when all meter reading frame commands in the current meter reading group are sent, sending a broadcast sleep frame; when the meter reading frame commands in the current meter reading group are not all sent, executing the step S4;

wherein, the meter reading frame command in the current meter reading group is all sent, then the broadcast dormancy frame is sent, further comprising:

judging whether all meter reading frame commands in all the meter reading groups to be read are completely sent;

when all meter reading frame commands in the group to be read are not completely sent, executing step S3;

when all meter reading frame commands in all the meter reading groups to be read are completely sent, performing group reading and complementary reading operation;

the group-copying and complementary-copying operation specifically comprises the following steps:

when the number of times of all sending completion of the meter reading frame commands in all the meter reading groups to be read is judged to be not more than 2, executing the step S4;

and when the number of times of completely sending all meter reading frame commands in all the meter reading groups to be read is judged to be 3, marking the meter as meter reading failure.

Specifically, in the broadcast group meter reading operation, meter reading frames are sequentially sent to meters in the current meter reading group, one meter in the current meter reading group is treated to send the meter reading frame, and after a set time length is waited, the meter reading frames are continuously sent to other meters which do not send the meter reading frames in the group.

In the process of executing the broadcast group meter reading operation, if data returned by the meter is received within the time T3, the data is stored or updated, and if the data returned by the meter is not received within the time T3, the judgment operation of a meter reading frame in the current meter reading group is carried out; if all meter reading frame commands in the current meter reading group are sent, sending a broadcast dormancy frame to enable all meters in the current meter reading group to be dormant, if all meter reading frame commands in the current meter reading group are not sent, returning to the step S4, and continuing sending meter reading frames to meters which do not send meter reading frames until all meter reading frames in the current meter reading group are sent;

if all meter reading frame commands in the current meter reading group are sent, a broadcast sleep frame is sent, whether all meter reading frame commands in all meter reading groups to be read are sent completely is judged, if all meter reading frame commands in all meter reading groups to be read are not sent completely, the step returns to the step S3, meter reading frames are sent to the meter reading groups to be read, if all meter reading frame commands in all meter reading groups to be read are sent completely, group reading and supplementing reading operation is carried out, the step returns to the step S4, first group reading and supplementing reading operation is carried out on all meter reading groups to be read, if no data return exists, the step returns to the step S4, second group reading and supplementing reading operation is carried out on all meter reading groups to be read, and if no data return exists, meter reading failure is marked.

During the group reading and complementary reading operation, two modes of grouping point reading and broadcasting group reading can be reselected according to the number of the complementary reading to perform the group reading and complementary reading operation.

And selecting two modes of grouping point reading and meter reading or broadcasting group reading and meter reading by judging the number of the meters in the group to be read, and reading the meters in the selected group to be read.

And S6, executing S3 to S5 on the group to be read, which does not finish the meter reading operation, until the meter reading operation of all the groups to be read is finished.

Specifically, when the meter reading operation is completed on the meter of one group of the meters to be subjected to the meter reading operation, the group to be subjected to the meter reading operation, which is not completed, can be selected for the meter reading operation, and a plurality of groups of meters, which are not completed, can be simultaneously selected for the meter reading operation.

The wake-up frame comprises the maximum wake-up time, and when the meter reading frame is not received by the meter, the meter can also sleep after waiting for the maximum wake-up time, so that the problem of high power consumption caused by the fact that the meter does not enter a sleep mode is solved.

Referring to fig. 4, the following detailed description is provided, based on the same inventive concept, in an embodiment of the present invention, a first embodiment of a wireless passive wake-up packet meter reading system is further provided. Because the principle of the problem solved by the system is similar to that of the wireless passive wake-up packet meter reading method, the implementation of the system can refer to the implementation of the method, and repeated details are not repeated.

The embodiment is mainly applied to wireless meter reading of the gas meter, power consumption caused by false awakening is reduced through grouping meter reading, and because data collision cannot occur during communication among different groups, meters in different groups can be simultaneously read, the meter reading time is reduced, and the meter reading efficiency is improved; different meter reading modes are selected according to the number of the meters in each group, so that the meter reading efficiency is improved; by using broadcast wakeup in the same group, the time for each watch to wake up separately is reduced.

As shown in fig. 4, the present embodiment mainly includes a concentrator 100 and a plurality of tables 200, wherein the concentrator includes a grouping module 110, a selecting module 120, a determining module 130, a first sending module 140, a first receiving module 150, and a data processing module 160, and the tables include a second receiving module 210 and a second sending module 220.

The grouping module 110 is configured to divide the meter 200 into a plurality of sets to be read, the selecting module 120 is configured to select one set of sets to be read as a current set, the first sending module 140 is configured to send an awakening frame to the current set, awaken the meter 200 in the current set, and send a read frame to the meter 200 in the current set, the first receiving module is configured to receive data returned by the meter 200, and the data processing module 160 is configured to store and update the data; the second receiving module 220 is used for the commands sent by the concentrator 100, and the second sending module 210 is used for the meter 200 to send data.

Specifically, the first sending module 140 of the concentrator 100 is connected to the second receiving module 220 of the meter 200, the second sending module 210 of the meter 200 is connected to the first receiving module of the concentrator 100, the first receiving module of the concentrator 100 is connected to the data processing module 160, wherein, the grouping module 110 of the concentrator 100 divides the meter 200 into a plurality of meter reading groups, the selecting module 120 selects one of the meter reading groups as the current meter reading group, the first sending module 140 sends a wake-up frame to the current meter reading group to wake up the meter 200 in the current meter reading group, after waking up, sending a meter reading frame to the meter reading tool 200 in the current meter reading group, after receiving a meter reading frame command by the second receiving module 220 of the meter reading tool 200, the meter reading data is sent to the first receiving module through the second sending module 210, the first receiving module transmits the received data to the data processing module 160, and the data processing module 160 stores or updates the data.

In one embodiment, the grouping module 110 divides the meter 200 into a plurality of groups to be read, which specifically includes:

and taking the meter number mantissas of the meters 200 as grouping basis, and dividing the meters 200 with the same meter number mantissas into a group to be read. For example, there are several meters 200 in the cell, the table numbers of the meters 200 are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, the several meters 200 are divided into 10 groups by the table number mantissa, and the meters 200 with the same table number mantissa are divided into one group, for example, the table number of the meter 200 in the group with the table number mantissa of 1 is NO: 12345671, NO: 12345611, NO: 12345621, etc. The table number for each table 200 is written by the manufacturer and each table number is unique.

In one embodiment, the grouping module 110 divides the meter 200 into a plurality of groups to be read, and further includes:

the method takes the table number mantissa of the table 200 as the basis of the frequency point number, selects the frequency point with the number corresponding to the table number mantissa of the table 200 as the working frequency point of the table 200, and specifically comprises the following steps: the mantissa of the table number of the gauge 200 is used as the digital part in the frequency point number, and the frequency point of which the data part in the number is the same as the mantissa of the table number of the gauge 200 is selected as the working frequency point of the gauge 200.

The frequency point is a table 200 awakening frequency point, the table 200 awakening frequency point is divided into 10 groups according to the table number mantissa of the table 200, the table 200 with the table number mantissa of 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 respectively works on the frequency points F0, F1, F2, F3, F4, F5, F6, F7, F8 and F9, the 10 groups of frequency points are different and have 1M adjacent intervals, the frequency points are generated according to the table mantissa when leaving a factory and writing the table numbers, and the management and maintenance are facilitated and the modification is not supported.

In one embodiment, the first sending module 140 sends a wakeup frame to the current meter reading group, and further includes: the selection module 120 selects the frequency point corresponding to the mantissa of the meter number of the meter 200 in the current meter reading group and the frequency point number. For example, when the mantissa of the table number of the meter 200 of the current meter reading group is 1, the selection frequency point F1 is used as the working frequency point of the meter 200 of the current meter reading group.

In an embodiment, the concentrator 100 further includes a determining module 130, where the determining module 130 is configured to determine the number of the meters 200 in the current meter reading group, and the first sending module 140 sends a wakeup frame to the current meter reading group, where the determining module 130 is configured to determine the number of the meters 200 in the current meter reading group, and execute a packet point meter reading when the number of the meters 200 is 1, and execute a broadcast group meter reading when the number of the meters 200 is greater than 1. According to the difference of 200 meters in each group, different meter reading processes are adopted, and the meter reading efficiency is improved.

In one embodiment, waking up the meter 200 in the current meter reading group at the first sending module 140 further includes: the latency of receiving data after waking up the meter 200 is set. The method specifically comprises the following steps:

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

t3 represents the meter reading time of each meter 200 in the current meter reading group;

n represents the number of the meter 200 in the current meter reading group.

In an embodiment, when a packet point meter reading operation is performed, a first receiving module receives data returned by the meter 200, and completes the meter reading operation on a current meter reading group, which specifically includes:

if the data returned by the meter 200 is received within the time T2, the meter reading operation of the current meter reading group is completed, and if the data returned by the meter 200 is not received within the time T2, the point reading and complementary reading operation is performed;

when a broadcast group meter reading is executed, the first receiving module receives data returned by the meter 200, and completes the meter reading operation of the current meter reading group, which specifically comprises:

and if the data returned by the meter 200 is received within the time T3, completing the meter reading operation of one meter 200 in the current meter reading group, and if the data returned by the meter 200 is not received within the time T3, performing the judgment operation of the meter reading frame in the current meter reading group.

In an embodiment, when performing a packet point meter reading operation and/or performing a broadcast group meter reading operation, after the first receiving module receives data returned by the meter 200, the method further includes:

the data processing module 160 saves or updates the data received by the first receiving module.

In one embodiment, when performing a packet meter reading operation, the first receiving module receives data returned by the meter 200, and further includes:

the meter 200 automatically enters the sleep state.

In one embodiment, the concentrator 100 performs a point copy and complementary copy operation, which specifically includes:

when the number of times of no data return is not more than 2, the first sending module 140 sends a meter reading frame;

when the number of times of no data return is 3, the selection module 120 selects a frequency point corresponding to the mantissa of the meter number of the meter 200 in the current meter reading group and the frequency point number;

when the number of times of no data return is 4, the concentrator 100 marks the meter 200 as meter reading failure.

In an embodiment, the determining module 130 is configured to determine a meter reading frame in a current meter reading group, and specifically includes:

when all meter reading frame commands in the current meter reading group are sent, the first sending module 140 sends a broadcast sleep frame;

when all meter reading frame commands in the current meter reading group are not sent, the first sending module 140 sends the meter reading frame.

In an embodiment, when the concentrator 100 performs broadcast group meter reading, and when all meter reading frame commands in the current meter reading group are sent, after sending the broadcast sleep frame, the method further includes:

the judging module 130 is configured to judge whether all meter reading frame commands in all the to-be-read-meter groups are completely sent;

when all meter reading frame commands in the meter reading group to be read are not completely sent, the selection module 120 selects the frequency point corresponding to the meter number mantissa and the frequency point number of the meter 200 in the current meter reading group;

and when all meter reading frame commands in all the meter reading groups to be read are completely sent, performing group reading and complementary reading operation.

In one embodiment, the performing, by the concentrator 100, a group copy complementing operation specifically includes:

when the number of times of all transmission completion of the meter reading frame commands in all the meter reading groups to be read is judged to be not more than 2, executing a first transmission module 140 to transmit meter reading frames;

and when the number of times of completely sending all meter reading frame commands in all the meter reading groups to be read is judged to be 3, marking the meter 200 as meter reading failure.

Specifically, based on a wireless wake-up group meter reading method, when a group point meter reading operation is executed, if the first receiving module receives the data sent by the second sending module 210 of the meter within the time T2, the data processing module 160 saves or updates the data, the meter 200 automatically enters the sleep state after responding, if the first receiving module does not receive the data sent by the second sending module 210 of the meter within the time T2, then the process returns to step S4 to perform the first point copy and complement copy operation, and if the first receiving module has not received data, returning to step S4 again, performing the second point copy complement operation, if a receiving module has not received data, returning to step S3, the packet point meter reading operation is executed again, and if no data is received by a receiving module within the time T2 this time, the meter reading device 200 is marked as a meter reading failure.

In the broadcast group meter reading operation, the first sending module 140 sequentially sends meter reading frames to the meters 200 in the current meter reading group, one meter 200 in the current meter reading group is treated to send the meter reading frame, and after a set time length is waited, the other meters 200 in the group which do not send the meter reading frame continue to send the meter reading frames.

In the operation of performing the broadcast group meter reading, if the first receiving module receives the data sent by the second sending module 210 of the meter within the time T3, the data processing module 160 stores or updates the data, and if the first receiving module does not receive the data sent by the second sending module 210 of the meter within the time T3, the determining module 130 performs the determination operation of the meter reading frame in the current meter reading group; if all meter reading frame commands in the current meter reading group are sent, the first sending module 140 sends a broadcast dormancy frame to enable all the meters 200 in the current meter reading group to be dormant, and if all the meter reading frame commands in the current meter reading group are not sent, the step S4 is returned, and the first sending module 140 continues to send meter reading frames to the meters 200 which do not send meter reading frames until all the meter reading frames in the current meter reading group are sent;

when all meter reading frame commands in the current meter reading group are sent, the first module sends a broadcast sleep frame, the determining module 130 determines whether all meter reading frame commands in all meter reading groups to be read are completely sent, if not all meter reading frame commands in all meter reading groups to be read are not completely sent, the step returns to step S3, the first sending module 140 continues to send meter reading frames to the meter reading groups not sending meter reading frames, if all meter reading frame commands in all meter reading groups to be read are completely sent, the group reading and supplementing operation is performed, the step returns to step S4, the first group reading and supplementing reading operation is performed on all meter reading groups to be read, if the first receiving module does not receive data, the step returns to step S4, the second group reading and supplementing reading operation is performed on all meter reading groups to be read, and if the first receiving module receives data, the meter reading tool 200 is marked as a failure.

And selecting two modes of grouping point reading and reading or broadcasting group reading by judging the number of the meters 200 in the group to be read, and reading the meters 200 in the selected group to be read.

Referring to fig. 5, the following describes in detail, based on the same inventive concept, an embodiment of the present invention further provides a first embodiment of a concentrator 100 for wirelessly and passively waking up packet meter reading. Because the principle of the problem solved by the concentrator 100 is similar to that of the wireless passive wake-up packet meter reading system, the implementation of the concentrator 100 can refer to the implementation of the system, and repeated details are not repeated.

The embodiment is mainly applied to wireless meter reading of the gas meter, power consumption caused by false awakening is reduced through grouping meter reading, and because data collision cannot occur during communication among different groups, meters in different groups can be simultaneously read, the meter reading time is reduced, and the meter reading efficiency is improved; different meter reading modes are selected according to the number of the meters 200 in each group, so that the meter reading efficiency is improved; by using broadcast wakeup in the same group, the time for each watch 200 to wake up individually is reduced.

As shown in fig. 5, the present embodiment mainly includes a concentrator 100 and a plurality of meters 200, wherein the concentrator 100 includes a grouping module 110, a selecting module 120, a determining module 130, a first sending module 140, a first receiving module, and a data processing module 160.

The grouping module 110 is configured to divide the meter 200 into a plurality of sets to be read, the selecting module 120 is configured to select one of the sets to be read as a current set, the first sending module 140 is configured to send an awakening frame to the current set, awaken the meter 200 in the current set, and send a read frame to the meter 200 in the current set, the first receiving module is configured to receive data returned by the meter 200, and the data processing module 160 is configured to store and update the data.

Specifically, the grouping module 110 of the concentrator 100 divides the meter 200 into a plurality of sets to be read, the selecting module 120 selects one set of sets to be read as a current set, an awakening frame is sent to the current set through the first sending module 140 to awaken the meter 200 in the current set, the meter reading frame is sent to the meter 200 in the current set after awakening, the first receiving module transmits the received data to the data processing module 160, and the data processing module 160 stores or updates the data.

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

n represents the number of the meter 200 in the current meter reading group.

the meter 200 automatically enters the sleep state.

Specifically, based on a wireless wake-up packet meter reading method, when a packet meter reading operation is performed, if a first receiving module receives return data within time T2, the data processing module 160 stores or updates the data, the meter 200 automatically enters a sleep state after responding, if the first receiving module does not receive the return data within time T2, the step returns to step S4 to perform a first meter reading and additional reading operation, if the first receiving module does not receive the data yet, the step returns to step S4 again to perform a second meter reading and additional reading operation, if a receiving module does not receive the data yet, the step returns to step S3 to re-perform the packet meter reading operation, and if a receiving module does not receive the data yet within time T2 this time, the meter reading operation 200 is marked as a meter reading failure.

In the operation of performing the broadcast group meter reading, if the first receiving module receives the return data within the time T3, the data processing module 160 stores or updates the data, and if the first receiving module does not receive the return data within the time T3, the determining module 130 performs the determination operation of the meter reading frame in the current meter reading group; if all meter reading frame commands in the current meter reading group are sent, the first sending module 140 sends a broadcast dormancy frame to enable all the meters 200 in the current meter reading group to be dormant, and if all the meter reading frame commands in the current meter reading group are not sent, the step S4 is returned, and the first sending module 140 continues to send meter reading frames to the meters 200 which do not send meter reading frames until all the meter reading frames in the current meter reading group are sent;

Referring to fig. 6 to 7, the following describes in detail, and based on the same inventive concept, an embodiment of the present invention further provides a first embodiment of a wireless passive wake-up packet point meter reading method. Because the principle of the problem solved by the system is similar to that of the wireless passive wake-up packet meter reading method, the implementation of the system can refer to the implementation of the method, and repeated details are not repeated.

As shown in fig. 6, the present embodiment mainly includes the following steps:

s100, judging the number of the meters in the current meter reading group, and executing grouping point meter reading when the number of the meters is 1;

s200, selecting a frequency point corresponding to the mantissa of the meter number of the meter in the current meter reading group and the frequency point number, sending an awakening frame to the current meter reading group, and awakening the meter in the current meter reading group;

specifically, the frequency point corresponding to the mantissa of the meter number of the meter in the current meter reading group and the frequency point number is selected. For example, when the mantissa of the table number of the table in the current meter reading group is 1, the selection frequency point F1 is used as the working frequency point of the table in the current meter reading group.

In step S200, a waiting time T1 for receiving data after the wakeup table is set;

T1＝T0+T3；

t0 is the time to send wakeup frame;

in step S400, when the packet point-reading meter reading operation is performed, after receiving data returned by the meter, the data is saved or updated.

In step S400, when the packet meter reading operation is performed, receiving data returned by the meter, and the meter automatically enters a sleep state.

the point reading and complementary reading operation specifically comprises the following steps: when the number of times of no data return is not more than 2, executing step S300; when the number of times of no data return is 3, executing step S200; and when the number of times of no data return is 4, marking the meter as meter reading failure.

As shown in fig. 7, specifically, when a packet data reading operation is performed, if data returned from the meter is received within time T2, the data is saved or updated, the meter automatically enters a sleep state after responding, if data returned from the meter is not received within time T2, the operation returns to step S300, the first data reading and writing operation is performed, if no data is returned, the operation returns to step S300 again, the second data reading and writing operation is performed, if no data is returned, the operation returns to step S200, the packet data reading operation is re-performed, and if no data is returned within time T2 this time, the meter is marked as a data reading failure.

In an embodiment, when a packet point meter reading operation is executed, if data returned by a meter is received within time T2, the data is saved or updated, the meter automatically enters a sleep state after responding, if data returned by the meter is not received within time T2, the incomplete meter reading operation is marked, and meter reading operations are performed on other to-be-read groups with incomplete meter reading operations until the meter reading operations on all to-be-read groups are completed.

Performing point reading and supplementary reading operation on all meters which do not finish the reading operation one by one, and executing the step S300 when the number of times of no data return is not more than 2; when the number of times of no data return is 3, executing step S200; and when the number of times of no data return is 4, marking the meter as meter reading failure.

And S500, executing S200 to S400 on the group to be read, which does not finish the meter reading operation, until the meter reading operation on all the groups to be read is finished.

Referring to fig. 8 to 10, the following describes in detail, and based on the same inventive concept, an embodiment of the present invention further provides a first embodiment of a wireless passive wake-up packet broadcast group meter reading method. Because the principle of the problem solved by the system is similar to that of the wireless passive wake-up packet meter reading method, the implementation of the system can refer to the implementation of the method, and repeated details are not repeated.

As shown in fig. 8-10, the present embodiment mainly includes the following steps:

s600, judging the number of meters in the current meter reading group, and executing broadcast group meter reading when the number of meters is more than 1;

s700, selecting a frequency point corresponding to the mantissa of the meter number of the meter in the current meter reading group and the frequency point number, sending an awakening frame to the current meter reading group, and awakening the meter in the current meter reading group;

in step S700, selecting a frequency point corresponding to the mantissa of the meter number of the meter in the current meter reading group and the frequency point number. For example, when the mantissa of the table number of the table in the current meter reading group is 1, the selection frequency point F1 is used as the working frequency point of the table in the current meter reading group.

In step S700, a waiting time for receiving data after waking up the meter is further included.

Specifically, when the broadcast group meter reading is executed, the receiving waiting time after the awakening meter is set to be T2;

T2＝T0+T3*n；

wherein, T1 is the time for sending wakeup frame;

and n represents the number of the meters in the current meter reading group.

in step S900, when the broadcast group meter reading is executed, after receiving the data returned from the meter, the data is saved or updated.

In step S900, when performing the broadcast group meter reading, the method specifically includes: if the data returned by the meter is received within the time T3, the meter reading operation of one meter in the current meter reading group is completed, and if the data returned by the meter is not received within the time T3, the judgment operation of the meter reading frame in the current meter reading group is carried out;

the judgment operation of the meter reading frame in the current meter reading group specifically comprises the following steps: when all meter reading frame commands in the current meter reading group are sent, sending a broadcast sleep frame; when the meter reading frame commands in the current meter reading group are not all sent, executing the step S800;

when all meter reading frame commands in the group to be read are not completely sent, executing the step S700;

when the number of times of all sending completion of the meter reading frame commands in all the meter reading groups to be read is judged to be not more than 2, executing the step S800;

As shown in fig. 9-10, in the broadcast group meter reading operation, the meter reading frames are sequentially sent to the meters in the current meter reading group, one of the meters in the current meter reading group is treated to send the meter reading frame, and after a set time length is waited, the meter reading frames are continuously sent to the other meters in the group that do not send the meter reading frame.

In the process of executing the broadcast group meter reading operation, if data returned by the meter is received within the time T3, the data is stored or updated, and if the data returned by the meter is not received within the time T3, the judgment operation of a meter reading frame in the current meter reading group is carried out; if all meter reading frame commands in the current meter reading group are sent, sending a broadcast dormancy frame to enable all meters in the current meter reading group to be dormant, if all meter reading frame commands in the current meter reading group are not sent, returning to the step S700, and continuing sending meter reading frames to meters which do not send meter reading frames until all meter reading frames in the current meter reading group are sent;

if all meter reading frame commands in the current meter reading group are sent, a broadcast sleep frame is sent, whether all meter reading frame commands in all meter reading groups to be read are sent completely is judged, if all meter reading frame commands in all meter reading groups to be read are not sent completely, the step S700 is returned, meter reading frames are sent to the meter reading groups not sent with meter reading frames continuously, if all meter reading frame commands in all meter reading groups to be read are sent completely, group reading and supplementing reading operation is carried out, the step S800 is returned, first group reading and supplementing reading operation is carried out on all meter reading groups to be read, if no data are returned, the step S800 is returned, second group reading and supplementing reading operation is carried out on all meter reading groups to be read, and if no data are returned, meter reading tools are marked as failure meter reading.

In one embodiment, in the broadcast group meter reading operation, meter reading frames are sequentially sent to meters in a current meter reading group, one meter in the current meter reading group is treated to send the meter reading frame, and after a set time length is waited, the meter reading frames are continuously sent to other meters which do not send the meter reading frames in the group.

In the process of executing the broadcast group meter reading operation, if the time is within T3, the meter reading is marked as successful, the data returned by the meter is received, the data is stored or updated, if the data returned by the meter is not received within the time T3, the meter is marked as incomplete meter reading operation, and meter reading frames are sent to other meters in the group until the meter reading operation of the current group to be subjected to meter reading is completed.

Judging whether all meter reading command frames in the current meter reading group are sent, if all meter reading command frames in the current meter reading group are sent, sending a broadcast sleep frame, judging whether all meter reading devices in the current meter reading group are marked as successful meter reading, if not, returning to the step S700, continuing to send the meter reading frames to the meter reading group without the meter reading frame, if all meter reading frame commands in all meter reading groups are sent, performing group reading and supplementing reading operation, returning to the step S800, performing first group reading and supplementing reading operation on all meter reading groups, if no data is returned, returning to the step S800, performing second group reading and supplementing reading operation on all meter reading groups, and if no data is returned, marking the meter reading devices as failed.

And S1000, executing S700 to S900 on the group to be read, which does not finish the meter reading operation, until the meter reading operation on all the groups to be read is finished.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A wireless passive wake-up packet meter reading method is characterized by comprising the following steps:

s1, dividing the meter into a plurality of groups to be read;

s2, selecting one group of the group to be read as the current reading group;

2. The method according to claim 1, wherein in S1, the dividing the meter into a plurality of groups to be read specifically includes:

taking the meter number mantissas of the meters as grouping basis, and dividing the meters with the same meter number mantissas into a group to be read;

in S1, the method includes dividing the meter into a plurality of groups to be read, and then:

taking the table number mantissa of the table as the basis of frequency point numbering, and selecting a frequency point with the number corresponding to the table number mantissa of the table as a working frequency point of the table;

the method for numbering frequency points by using the table number mantissas of the table specifically comprises the following steps: taking the mantissa of the table number of the table as the digital part in the frequency point number;

the frequency point with the number corresponding to the mantissa of the table number of the table is selected as the working frequency point of the table, and the method specifically comprises the following steps: selecting a frequency point with the data part in the serial number being the same as the table number mantissa of the table as a working frequency point of the table;

in S3, before sending the wakeup frame to the current meter reading group, the method further includes:

selecting the frequency points corresponding to the table number mantissas and the frequency point numbers of the tables in the current table reading group;

judging the number of the meters in the current meter reading group, executing grouping point meter reading when the number of the meters is 1, and executing broadcasting group meter reading when the number of the meters is more than 1;

in S3, after waking up the meter in the current meter reading group, the method further includes:

setting the waiting time for receiving data after awakening the meter;

the setting of the waiting time for waking up the meter to receive data specifically comprises:

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

n represents the number of the meters in the current meter reading group;

when a grouping point meter reading operation is performed, in S5, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

if the data returned by the meter is received within the time T3, completing the meter reading operation of one meter in the current meter reading group, and if the data returned by the meter is not received within the time T3, performing the judgment operation of the meter reading frame in the current meter reading group;

when the packet point reading meter reading operation is executed and/or when the broadcast group reading meter reading is executed, after the data returned by the meter is received, the method further comprises the following steps:

saving or updating data;

when a packet point reading and meter reading operation is executed, the receiving of the data returned by the meter further comprises:

the meter automatically enters a dormant state;

the point-reading complementary reading operation specifically comprises the following steps:

when the number of times of no data return is not more than 2, executing S4;

when the number of times of no data return is 3, executing S3;

when the number of times of no data return is 4, marking the meter as meter reading failure;

the operation of judging the meter reading frame in the current meter reading group specifically comprises the following steps:

when the meter reading frame commands in the current meter reading group are not all sent, S4 is executed;

when the broadcast group meter reading is executed, the meter reading frame command in the current meter reading group is all sent, and after a broadcast sleep frame is sent, the method further comprises the following steps:

when all the meter reading frame commands in the set to be read are completely sent, performing group reading and complementary reading operation;

3. A wireless passive wake-up packet meter reading system is characterized by comprising: a concentrator and a plurality of meters, wherein,

the meter comprises a second receiving module and a second sending module;

the data processing module is used for storing and updating data;

the second receiving module is used for the command sent by the concentrator;

the second sending module is used for sending data by the meter.

4. The system of claim 3, wherein the grouping module divides the meter into a plurality of groups to be read, and specifically comprises:

the grouping module divides the meter into a plurality of groups to be checked, and the grouping module further comprises:

the first sending module sends a wakeup frame to the current meter reading group, and the method further comprises the following steps:

the selection module selects the frequency points corresponding to the table number mantissas and the frequency point numbers of the tables in the current table reading group;

the concentrator further includes a determining module, the determining module is configured to determine the number of the meters in the current meter reading group, and the sending of the wakeup frame by the first sending module to the current meter reading group further includes:

the first sending module wakes up the meter in the current meter reading group, and the method further comprises the following steps:

setting the waiting time for receiving data after awakening the meter;

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

n represents the number of the meters in the current meter reading group;

when a grouping point reading meter reading operation is executed, the first receiving module receives data returned by the meter, and finishes the meter reading operation of the current meter reading group, and the method specifically comprises the following steps:

when the packet point reading meter reading operation is executed and/or when the broadcast group reading meter reading is executed, after the first receiving module receives the data returned by the meter, the method further includes:

the data processing module stores or updates the data received by the first receiving module;

when a packet point reading meter reading operation is executed, the first receiving module receives data returned by the meter, and the method further comprises the following steps:

the meter automatically enters a dormant state;

the concentrator executes point reading and complementary reading operation, and specifically comprises the following steps:

when the number of times of no data return is 4, the concentrator marks the meter as meter reading failure;

the judging module is used for judging the meter reading frame in the current meter reading group, and specifically comprises the following steps:

when the meter reading frame commands in the current meter reading group are not all sent, the first sending module sends meter reading frames;

when the concentrator executes the broadcast group meter reading, and when all the meter reading frame commands in the current meter reading group are sent, after a broadcast sleep frame is sent, the method further includes:

the step of executing the group copying and complementary copying operation by the concentrator specifically comprises the following steps:

5. A concentrator for wirelessly and passively waking up a packet meter reading, comprising: the device comprises a grouping module, a selection module, a first sending module, a first receiving module, a data processing module, a judgment module and a setting module;

the data processing module is used for storing and updating data;

6. The concentrator of claim 5, wherein the grouping module divides the meter into a plurality of groups to be checked, and specifically comprises:

7. The concentrator of claim 6, wherein the grouping module divides the meter into a plurality of groups to be read, further comprising:

the first sending module further sends a wakeup frame to the current meter reading group, and the wakeup frame comprises:

the judging module judges the number of the meters in the current meter reading group, when the number of the meters is 1, group point meter reading is executed, and when the number of the meters is more than 1, broadcast group meter reading is executed;

setting the waiting time for receiving data after awakening the meter;

the setting module sets up and awakens the waiting time of receiving data behind the meter, specifically includes:

T1＝T0+T3；

t0 is the time to send wakeup frame;

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

n represents the number of the meters in the current meter reading group;

the meter automatically enters a dormant state;

when the concentrator executes the broadcast cluster meter reading, and when all meter reading frame commands in the current meter reading group are sent, after a broadcast sleep frame is sent, the method further includes:

8. A wireless passive awakening packet point meter reading method is characterized by comprising the following steps:

9. The method according to claim 8, wherein the selecting the frequency point corresponding to the table number mantissa and the frequency point number of the table in the current meter reading group in S2 specifically includes:

in S200, after waking up the meter in the current meter reading group, the method further includes:

T1＝T0+T3；

t0 is the time to send wakeup frame;

in S400, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

in S400, after receiving the data returned by the meter, the method further includes:

saving or updating data;

the meter automatically enters a dormant state;

when the number of times of no data return is not more than 2, executing S300;

when the number of times of no data return is 3, executing S200;

10. A wireless passive wake-up packet broadcast group meter reading method is characterized by comprising the following steps:

s1000, executing S700 to S900 on the group to be meter-read, which does not finish the meter-reading operation, until the meter-reading operation on all the groups to be meter-read is finished;

in S700, selecting the frequency point corresponding to the table number mantissa and the frequency point number of the table in the current table reading group specifically includes:

in S700, after waking up the meter in the current meter reading group, the method further includes:

T2＝T0+T3*n；

t1 is the time to send wakeup frame;

n represents the number of the meters in the current meter reading group;

in S900, the receiving data returned by the meter, and completing the meter reading operation on the current meter reading group specifically includes:

in S900, after receiving the data returned by the meter, the method further includes:

saving or updating data;

the meter automatically enters a dormant state;

when the meter reading frame commands in the current meter reading group are not all sent, S800 is executed;

when all the meter reading frame commands in the current meter reading group are sent, after a broadcast sleep frame is sent, the method further comprises the following steps: