CN115835055A - Concentrator communication process dynamic adjustment method - Google Patents
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Abstract
The invention discloses a dynamic adjusting method for a communication process of a concentrator, and belongs to the field of data acquisition. A dynamic regulation method for a communication process of a concentrator is characterized by comprising the following steps: step 100: the concentrator measures the time of establishing communication handshake between each electric meter and the concentrator in non-acquisition time so as to obtain the communication response time between each electric meter and the concentrator; step 200: determining a relay electric meter from each electric meter to the concentrator according to the communication response time between each electric meter and the concentrator; step 200: after the concentrator receives the instruction of collecting the electricity utilization data of the electricity meters sent by the server, the concentrator sends the electricity utilization data collection instruction to all the electricity meters, and the electricity meters send the electricity utilization data to the concentrator; the method has the beneficial effect of providing the dynamic adjustment method for the communication process of the concentrator, which can avoid the occurrence of information isolated islands when the concentrator collects the data of the electric meter.
Description
Technical Field
The invention relates to the technical field of data acquisition, in particular to a dynamic adjustment method for a communication process of a concentrator.
Background
The power line carrier technology refers to a special communication mode for voice or data transmission using a power line as an information transmission medium. The power carrier technology can utilize the existing power line, has extremely low laying cost, and is widely applied to the fields of power information transmission such as automatic remote meter reading of a power system, distribution automation, power transmission network communication and the like.
The power carrier communication is easily interfered by the outside, and especially, the problem that the electric meter with a long distance is easy to fail to communicate is easy to occur. The power configuration of a communication module of the existing concentrator is fixed, and for example, a power carrier module is taken as an example, the carrier signal frequency is modulated into a fixed value, so that dynamic adjustment cannot be performed according to the communication condition. In order to solve the problem of power island in the collection process of the concentrator, hardware cost is increased by setting various communication modules, and corresponding modules are required to be configured for corresponding electric meters, so that great inconvenience is caused.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In order to solve the technical problems mentioned in the above background section, some embodiments of the present invention provide a method for dynamically adjusting a communication process of a concentrator, including the following steps:
step 100: the concentrator measures the time of establishing communication handshake between each electric meter and the concentrator in non-acquisition time so as to obtain the communication response time between each electric meter and the concentrator;
step 200: after the concentrator receives the instruction of collecting the electricity utilization data of the electricity meters sent by the server, the concentrator sends the electricity utilization data collection instruction to all the electricity meters, and the electricity meters send the electricity utilization data to the concentrator;
wherein step 200 comprises:
the communication module of the concentrator collects the electricity consumption data of all the electricity meters under the rated voltage;
if there is an electricity meter that has not completed the data transfer, then
The concentrator increases the working voltage of the communication module to collect the data of the electric meters without collecting the data, and/or the concentrator and the electric meters without collecting the data adopt low-speed communication frequency to transmit the data after establishing communication handshake so as to collect the data of the electric meters without collecting the data.
When the electricity consumption data of the electric meter are collected, under the condition that the concentrator cannot directly collect all the electricity consumption data, the data collection efficiency of the electric meter which collects the data not collected by increasing the rated voltage of the communication module is high.
Further, step 100 includes:
and in the time that the concentrator does not receive the electricity consumption data of the electric meters transmitted by the server, the concentrator sequentially establishes communication handshake with each electric meter and records the time of establishing communication handshake with each electric meter.
Further, in step 200, the method for increasing the working voltage of the communication module of the concentrator to collect the data of the electric meter which does not collect the data includes:
the working voltage of the communication module is increased by the concentrator, the communication module of the concentrator sends a power consumption data acquisition instruction to all the electric meters which do not acquire data, and the preset time T is set when the concentrator stops receiving information uploaded by the electric meters 1 Then, the concentrator judges whether an ammeter which does not acquire data exists or not;
stopping data acquisition if the power consumption data of all the electric meters are acquired, simultaneously recovering the working voltage of the communication module of the concentrator to the rated voltage,
if the electric meters which do not acquire data exist; the concentrator sends the electricity utilization data acquisition instruction to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again; and if the data of all the electric meters are not collected, recording the electric meters which do not collect the data as communication abnormal electric meters. After waiting for the presetting, the next judgment is carried out, more opportunities can be given to the electric meters which do not acquire the data, and the opportunities of acquiring the electric meters which do not acquire the data are increased under the condition of ensuring reasonable waiting time; meanwhile, when the working voltage is increased, the attempt is made again, and the problem that the ammeter data are difficult to collect due to communication blockage can be avoided.
Further, in step 200, the preset time T is determined according to the test result in step 100 1 When the concentrator receives the data sent by the ammeter, the timing is restarted at the preset time T 1 The longest time among the times to establish a communication handshake for all meters and concentrators. The predetermined time is determined according to the result of step 100, so as to ensure that the waiting time is within a reasonable range.
Further, in step 200:
the method for transmitting data by the concentrator and the electric meters which do not acquire data by adopting low-speed communication frequency comprises the following steps: the communication module of the concentrator sends the electricity consumption data acquisition command and the low-speed communication frequency command to all the electric meters which do not acquire the data,
in the collectionPreset time T for stopping receiving information uploaded by ammeter by repeater 2 Then, the concentrator judges whether an ammeter of which the data is not acquired exists or not;
if the electric meters which do not acquire the data exist, the concentrator sends the electricity utilization data acquisition instruction to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again; and if the data of all the electric meters are not collected, recording the electric meters which do not collect the data as communication abnormal electric meters.
Further, in step 200, the preset time T is determined according to the test result in step 100 2 When the concentrator receives the data sent by the ammeter, the timing is restarted at the preset time T 2 The longest of the communication handshaking time is established for all meters and concentrators that have not acquired data.
Further, in the initial state, the concentrator and the electric meter are both set in a low-speed communication state;
the concentrator sends a high-speed communication instruction to the ammeter in a low-speed communication mode, and the ammeter receives the high-speed communication instruction of the concentrator in the low-speed communication mode and adjusts the ammeter communication mode to the high-speed communication mode;
electric meter at set time T 2 When no data is received, the electric meter adjusts itself to a low-speed communication mode; wherein, 1.5T 1 ＞T 3 ＞1.2T 1 . Therefore, when the concentrator needs the electric meter to establish a communication mode under low-speed communication frequency, the concentrator does not need to consider the low-speed communication state, and the problem that the electric meter cannot establish communication connection due to high-speed communication frequency is solved.
The method for dynamically adjusting the communication process of the concentrator has the beneficial effect that the phenomenon that an information isolated island occurs when the concentrator collects the data of the electric meter is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention and to enable other features, objects and advantages of the invention to be more fully apparent. The drawings and their description illustrate the invention by way of example and are not intended to limit the invention.
Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a flow chart of step 200 of an embodiment of the present invention.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The power line carrier technology is a mode of carrying out data transmission by adopting a power line as an information transmission medium, and is often applied to a remote meter reading system. Reference may be made to a technical solution described in chinese patent document CN111654312A in power line carrier communication equipment. Therefore, after the power carrier technology is applied to the field of remote meter reading, the concentrator can establish electrical signal connection to all electric meters under the jurisdiction of the concentrator, and then acquire data in the electric meters as shown in fig. 1.
In the existing technical scheme, the concentrator and the electric meter are greatly interfered by the outside world or the electric meter which is far away from the concentrator is difficult to transmit data to the concentrator, so that a plurality of communication modules are required to be arranged in the concentrator, and then the corresponding communication modules are designed in the electric meter to transmit information between the concentrator and the electric meter, so that the cost is easily increased.
Meanwhile, in an electric meter far away from the concentrator, because of the reason that communication is blocked, the information of the electric meter is difficult to collect by the concentrator, and an information isolated island phenomenon occurs.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a method for dynamically adjusting a communication process of a concentrator, comprising the following steps:
step 100: the communication response time between each meter and concentrator is measured.
The concentrator measures the time of establishing communication handshake between each electric meter and the concentrator in non-acquisition time so as to obtain the communication response time between each electric meter and the concentrator;
the specific steps of step 100 are as follows:
step 101: the concentrator establishes communication handshake with each electric meter in sequence and records the time of establishing communication handshake with each electric meter in the time when the concentrator does not receive the electricity consumption data of the electric meters transmitted by the server;
step 102: sequencing the communication handshake establishing time of each electric meter and the concentrator from small to large to obtain an electric meter communication response time arrangement table, and setting time T 1 The ammeter has no communication handshake established therein, and the communication response time is set to T 1 ；
Wherein T is 1 The preset value is generally set in the concentrator and all the electric meters in the debugging stage after installation, and the set value is generally 1.2 times of the handshake time for establishing communication between the last electric meter and the concentrator in the first test.
Step 200: after the concentrator receives the instruction of collecting the electricity consumption data of the electricity meters sent by the server, the concentrator sends the electricity consumption data collecting instruction to all the electricity meters, and the electricity meters send the electricity consumption number to the concentrator.
The step 200 specifically includes:
step 201: the communication module of the concentrator works under the rated voltage, the concentrator sends an instruction for collecting information to all the electric meters, and the concentrator does not receive the preset time T for uploading data of the electric meters 1 Then stopping receiving the data of the electric meter, and judging whether the electric meter which does not acquire the data exists;
step 202: the communication module of the concentrator works under the rated voltage, the concentrator sends a power consumption data acquisition instruction to the ammeter which does not acquire data, and the concentrator is in the preset time T when the data uploaded by the ammeter is not received 1 Then stopping receiving the data of the electric meter, and judging whether the electric meter which does not acquire the data exists;
wherein the preset time T 1 It is the longest time that the tested concentrator spends in the time to establish the communication handshake with all the meters in turn in step 100. For example, in the electric meters 1-16 under the jurisdiction of the concentrator, the longest time is spent for the concentrator and the electric meter 16 to establish communication handshake; if the concentrator and the meter 16 establish a communication handshake, taking 10 seconds, T 1 =12s. And when the concentrator receives the data sent by the electric meter, timing is restarted at the preset time.
If after the retry, there are meters that have not collected data, step 203 is performed.
In this embodiment, there are three ways for step 203, step 203a and step 203b, and step 203a and step 203b are executed by selecting one, or two steps are executed in sequence.
Step 203a: the concentrator increases the working voltage of the communication module to collect the data of the ammeter of which the data is not collected;
the specific manner of step 203a is as follows:
the working voltage of the communication module is increased by the concentrator, the communication module of the concentrator sends a power consumption data acquisition instruction to all the electric meters which do not acquire data, and the preset time T is set when the concentrator stops receiving information uploaded by the electric meters 2 Then, the concentrator judges whether an ammeter which does not acquire data exists or not;
and if the electricity consumption data of all the electric meters are collected, stopping data collection, and simultaneously recovering the working voltage of the communication module of the concentrator to the rated voltage.
If the electric meters which do not acquire the data exist, the concentrator sends the electricity utilization data acquisition command to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again. And if the concentrator does not acquire the data of all the electric meters, recording the electric meters which do not acquire the data, and restoring the working voltage of the concentrator to the rated voltage.
Determining a preset time T according to the test result in the step 100 2 A preset time T 2 The longest of the communication handshaking time is established for all meters and concentrators that have not acquired data. And when the concentrator receives the data sent by the electric meter, timing is restarted at the preset time.
For example, the concentrator determines that there are data not collected by the electric meters 15 and 16; in the test data of step 100, the time for the electric meter 16 and the concentrator to establish communication handshake is 10s, and the time for the electric meter 15 and the concentrator to establish communication handshake is 8s; then T 2 =10s。
In this embodiment, in step 203a, the power supply voltage of the communication module in the concentrator may be increased to increase the signal processing capability of the communication module, so as to ensure that data that is not received before can be received again. Step 203b is to ensure the stability of the signal between the concentrator and the electric meter by reducing the communication frequency between the concentrator and the electric meter.
Step 203b: and after the concentrator and the electric meters which do not acquire the data establish communication handshake, the concentrator transmits the data by adopting low-speed communication frequency.
The specific manner of step 203b is as follows:
a communication module of the concentrator sends a power utilization data acquisition instruction and a low-speed communication frequency instruction to all the electric meters which do not acquire data; the preset time T for stopping receiving the information uploaded by the electric meter at the concentrator 2 Then, the concentrator judges whether an ammeter which does not acquire data exists or not; if the electric meters which do not acquire the data exist, the concentrator sends the electricity utilization data acquisition instruction to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again; and if the ammeter which does not acquire the data still exists, recording the ammeter which does not acquire the data as a communication abnormal ammeter.
Determining a preset time T according to the test result in the step 100 2 A preset time T 2 The longest time among the times of establishing communication handshake for all meters and concentrators that do not collect data.
In this embodiment, a mode of reducing the communication frequency to ensure stable communication is adopted, so that the concentrator and the electric meter establish signal connection to complete data transmission. Therefore, step 203a and step 203b can be regarded as two independent technical solutions, and the two solutions can be combined with each other to be used in one solution.
That is, after the working voltage of the communication module of the concentrator is increased and stable signal transmission cannot be obtained between the concentrator and all the electric meters, the communication frequency between the concentrator and the electric meters is reduced on the basis of increasing the working voltage of the communication module.
According to the technical scheme, the working voltage of the concentrator communication module is increased, the communication frequency between the concentrator and the electric meter is reduced, and signal connection is completed. In actual use, the increased operating voltage is responded by the concentrator and can be used directly.
Switching communication frequency requires the concentrator to send data to the ammeter, and the ammeter can switch communication frequency after receiving the signal of switching communication frequency. Therefore, under the condition that the interference between the electric meter and the concentrator is large, the communication handshake cannot be established between the electric meter and the concentrator under the high-speed communication frequency, and naturally, the electric meter cannot be switched to the low-speed communication frequency.
Therefore, the low-speed communication frequency is set in the initial state of the electric meter, and high-speed communication frequency communication is adopted in a limited mode when data are transmitted; the concrete mode is as follows:
in an initial state, the concentrator and the electric meter are both set in a low-speed communication state;
the concentrator sends a high-speed communication instruction to the ammeter in a low-speed communication mode, and the ammeter receives the high-speed communication instruction of the concentrator in the low-speed communication mode and adjusts the ammeter communication mode to the high-speed communication mode;
electric meter at set time T 3 When no data is received, the electric meter adjusts itself to a low-speed communication mode; wherein, 1.5T 1 ＞T 3 ＞1.2T 1 。
Therefore, when the scheme of step 203b is not executed, or the concentrator is required to send an instruction to put the electricity meter in the low-speed communication state, the concentrator and the electricity meter establish communication handshake at the low-speed communication frequency, and then complete electricity data transmission at the high-speed communication frequency.
The invention has the following beneficial effects:
(1) In the non-information acquisition time period, the communication handshake test from the electric meter to the concentrator is completed, and the acquisition of normal electricity utilization data can not be influenced.
(2) After the concentrator can not collect signals, the mode of increasing the power supply voltage of the communication module and reducing the communication frequency of signal transmission is adopted in sequence, and the concentrator can collect data of all the electric meters to the maximum extent.
(3) In order to ensure that the concentrator and the electric meter can be synchronously switched to a low-speed communication state, the initial state of the electric meter is set to be the low-speed state, and the concentrator and the electric meter adopt low-speed communication frequency to establish communication handshake when establishing communication handshake. Because the byte quantity of the communication handshake is small, the communication efficiency is not influenced, but the synchronous switching of the subsequent concentrator and the electric meter can be ensured.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.
Claims (7)
1. A dynamic regulation method for a communication process of a concentrator is characterized by comprising the following steps:
step 100: the concentrator measures the time of establishing communication handshake between each electric meter and the concentrator in non-acquisition time so as to obtain the communication response time between each electric meter and the concentrator;
step 200: after the concentrator receives the instruction of collecting the electricity utilization data of the electricity meters sent by the server, the concentrator sends the electricity utilization data collection instruction to all the electricity meters, and the electricity meters send the electricity utilization data to the concentrator;
wherein step 200 comprises:
the communication module of the concentrator collects the electricity consumption data of all the electricity meters under the rated voltage;
if the ammeter which does not complete data transmission exists, the concentrator increases the working voltage of the communication module to collect the data of the ammeter which does not collect the data, and/or the concentrator and the ammeter which does not collect the data adopt low-speed communication frequency to transmit the data after communication handshake is established so as to collect the data of the ammeter which does not collect the data.
2. The concentrator communication process dynamic adjustment method according to claim 1, characterized in that: the step 100 comprises:
and in the time that the concentrator does not receive the electricity consumption data of the electric meters transmitted by the server, the concentrator sequentially establishes communication handshake with each electric meter and records the time of establishing communication handshake with each electric meter.
3. The concentrator communication process dynamic adjustment method according to claim 1, characterized in that: in step 200, the method for acquiring the data of the electric meter which does not acquire the data by increasing the working voltage of the communication module of the concentrator comprises the following steps:
the working voltage of the communication module is increased by the concentrator, the communication module of the concentrator sends a power consumption data acquisition instruction to all the electric meters which do not acquire data, and the preset time T is set when the concentrator stops receiving information uploaded by the electric meters 1 Then, the concentrator judges whether an ammeter which does not acquire data exists or not;
stopping data acquisition if the electricity consumption data of all the electricity meters are acquired, and simultaneously recovering the working voltage of the communication module of the concentrator to the rated voltage;
if the electric meters which do not acquire the data exist, the concentrator sends the electricity utilization data acquisition instruction to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again; and if the concentrator does not acquire the data of all the electric meters, recording the electric meters which do not acquire the data as empty meters, and restoring the working voltage of the communication module to the rated voltage.
4. The concentrator communication process dynamic adjustment method of claim 3, characterized in that: in step 200, a predetermined time T is determined according to the test result in step 100 1 When the concentrator receives the data sent by the ammeter, the timing is restarted at the preset time T 1 The longest of the times to establish a communication handshake for all meters and concentrators.
5. The concentrator communication process dynamic adjustment method according to claim 1, characterized in that: in step 200:
the concentrator and the electric meter which does not acquire data adopt a low-speed communication frequency data transmission method which comprises the following steps: the communication module of the concentrator sends a power consumption data acquisition command and a low-speed communication frequency command to all the electric meters which do not acquire dataThe concentrator stops receiving the preset time T of the information uploaded by the ammeter 2 Then, the concentrator judges whether an ammeter which does not acquire data exists or not;
if the electric meters which do not acquire the data exist, the concentrator sends the electricity utilization data acquisition instruction to all the electric meters which do not acquire the data again so as to try to acquire the data of the electric meters which do not acquire the data again; and if the data of all the electric meters are not collected by the concentrator, recording the electric meter which does not collect the data as a communication abnormal electric meter.
6. The concentrator communication process dynamic adjustment method according to claim 5, characterized in that: in step 200, a predetermined time T is determined according to the test result in step 100 2 When the concentrator receives the data sent by the ammeter, the timing is restarted at the preset time T 2 The longest time in the time to establish a communication handshake for all meters and concentrators that have not acquired data.
7. The concentrator communication process dynamic adjustment method according to any one of claims 1 to 6, characterized in that:
in an initial state, the concentrator and the electric meter are both set in a low-speed communication state;
the concentrator sends a high-speed communication instruction to the ammeter in a low-speed communication mode, and the ammeter receives the high-speed communication instruction of the concentrator in the low-speed communication mode and adjusts the ammeter communication mode to the high-speed communication mode;
electric meter at set time T 3 When no data is received, the electric meter adjusts itself to a low-speed communication mode; wherein, 1.5T 1 ＞T 3 ＞1.2T 1 。
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