Concentrator Information Acquisition Method

Abstract

The present invention discloses a concentrator information acquisition method, which belongs to the field of data acquisition. A concentrator information acquisition method is characterized by comprising the following steps: Step 100: During non-acquisition time, the concentrator measures the time for each electricity meter to establish a communication handshake with the concentrator to obtain the communication response time between each electricity meter and the concentrator; Step 200: According to the communication response time between each electricity meter and the concentrator, determine the relay electricity meters from each electricity meter to the concentrator; Step 300: After the concentrator receives the instruction from the server to collect the electricity consumption data of the electricity meters, the concentrator sends a signal acquisition instruction to all the electricity meters, and the electricity meters send the electricity consumption data to the concentrator. The beneficial effect of the present invention is to provide a concentrator information acquisition method that avoids information islands when the concentrator collects electricity meter data.

Description

Technical Field

[0001] The present invention relates to the technical field of data acquisition, and more particularly, to a method for collecting concentrator information. Background Art

[0002] Power line carrier technology refers to a special communication method that uses power lines as the information transmission medium for voice or data transmission. Since power line carrier technology can utilize existing power lines, its laying cost is extremely low, and it has currently been widely applied in power information transmission fields such as automatic remote meter reading in power systems, distribution network automation, and transmission network communication.

[0003] Due to communication distance and interference effects, some smart meters are prone to problems such as "carrier island" and "carrier crosstalk". In existing solutions, a relay amplifier is installed to communicate and connect the "islands". The carrier relay amplifier communicates with the concentrator carrier upward and with the electric energy meter carrier downward. The carrier relay amplifier does not need to set parameters, and the power supply of the relay amplifier is supplied by the power line. However, this setting scheme requires adding new hardware and communication equipment, which will increase the construction cost. Summary of the Invention

[0004] This section of the present invention is used to briefly introduce concepts, which will be described in detail in the following detailed implementation section. This section of the present invention is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the above background art section, some embodiments of the present invention provide a method for collecting concentrator information, including the following steps:

[0006] Step 100: During non-acquisition time, the concentrator measures the time for each electric meter to establish a communication handshake with the concentrator to obtain the communication response time between each electric meter and the concentrator;

[0007] Step 200: Based on the communication response time between each electric meter and the concentrator, determine the relay electric meter from each electric meter to the concentrator;

[0008] Step 300: After the concentrator receives the instruction from the server to collect the power consumption data of the electric meters, the concentrator sends a signal collection instruction to all the electric meters, and the electric meters send the power consumption data to the concentrator;

[0009] Step 400: The concentrator determines whether there are electric meters for which data has not been collected based on the collected power consumption data. The concentrator records the electric meters for which data has not been collected, and the concentrator sequentially establishes a signal connection with the electric meters for which data has not been collected through the relay electric meters of the electric meters for which data has not been collected, and then collects the power consumption data on the electric meters for which data has not been collected.

[0010] In the present invention, during the non - acquisition time of the concentrator, the communication response time between the electric meter and the concentrator is tested. According to the test results of the communication response time, the most suitable relay electric meter for each electric meter is selected. In this way, when the concentrator needs to collect the electricity consumption data on the electric meter and there is an information island phenomenon, the concentrator can establish a signal connection with the electric meter through the relay electric meter of the electric meter that generates the signal island phenomenon. Thus, without the need to additionally set up new equipment, by means of relay communication, it is ensured that the concentrator can collect the electricity consumption data of all electric meters.

[0011] Further, step 100 includes:

[0012] Step 101: During the time when the concentrator does not receive the electricity consumption data of the electric meters sent by the server, the concentrator establishes communication handshakes with each electric meter in turn and records the time of establishing the communication handshakes with each electric meter.

[0013] Step 102: Sort the times of establishing communication handshakes between each electric meter and the concentrator from small to large to obtain a table of the communication response times of the electric meters. For the electric meters that do not establish communication handshakes within the set time T1, the communication response time is set to T1.

[0014] Step 103: Classify the electric meters according to the communication response time. Among them, the electric meters ranked in the top 1 / 4 of the communication response times among all the electric meters under the jurisdiction of the concentrator are classified into the first category, and the electric meters whose time of establishing communication handshakes with the concentrator is less than at least one of the average value or the median among all the electric meters under the jurisdiction of the concentrator are classified into the second category, and the remaining electric meters are classified into the third category.

[0015] Dividing the relay electric meters according to the time of communication handshake can accurately classify all the electric meters under the jurisdiction of the concentrator. Furthermore, it can provide a basis for subsequent selection of relay electric meters according to the communication lines from the electric meters to the concentrator, ensuring that when selecting the relay electric meters, on the basis of considering the stability of the communication lines from the relay electric meters to the electric meters, the lines from the relay electric meters to the concentrator are also stable.

[0016] Further, in step 200:

[0017] Each electric meter finds 3 electric meters as relay electric meters.

[0018] When an electric meter is looking for relay electric meters, it first looks for them among the electric meters classified into the first category. When the electric meter cannot find 3 suitable relay electric meters among the electric meters classified into the first category, it looks for suitable relay electric meters among the electric meters classified into the second category to make up 3 relay electric meters.

[0019] Further, step 200 includes:

[0020] Step 201: Each electric meter establishes a communication handshake with other electric meters in turn, and records the time when the communication handshake is established with each electric meter.

[0021] Step 202: For the electric meters that do not establish a communication handshake within the set time T1, the communication response time is set to T1.

[0022] Step 203: Each electric meter sorts according to the time when the communication handshake is established with other electric meters, and sends the sorting table to the concentrator. The concentrator selects 3 first-class electric meters from them as its communication relay electric meters. If there are less than 3, they are supplemented by second-class electric meters.

[0023] Step 204: For the electric meters that the concentrator does not receive the sorting table, according to the sorting table with this electric meter sent by other electric meters, select 3 first-class electric meters as its communication relay electric meters. If there are less than 3, they are supplemented by second-class electric meters.

[0024] Further, in step 200, if the electric meter cannot find 3 relay electric meters among the first-class electric meters and the second-class electric meters, then the electric meter stops looking for relay electric meters, and the remaining relay electric meter records are empty. The reason for not using the third-class electric meters as relay electric meters is that the communication line from the third-class relay electric meter itself to the concentrator is not stable. Using the third-class electric meters as relay electric meters cannot make the changed line smoother.

[0025] Further, step 400 includes:

[0026] 401: Determine whether the first-sorted relay electric meter of all the electric meters that have not completed data collection is an electric meter that has not completed data collection. If there is an electric meter that has not completed data collection and its first-sorted relay electric meter is also an electric meter that has not completed data collection, then this electric meter executes step 402 to let the concentrator collect the data of this electric meter, and the remaining electric meters that have not completed data collection execute step 403 to let the concentrator collect the data of this electric meter.

[0027] Step 402: The concentrator re-matches relay electric meters for the electric meters that have not completed data collection according to the data recorded in 200. After all the electric meters that have not completed data collection have relay electric meters, execute step 403.

[0028] 403: The concentrator establishes a relay signal connection with all the electric meters that have not completed data collection in turn to collect the data of all the electric meters that have not collected data.

[0029] Step 404: If the concentrator still cannot collect the electricity consumption data of the corresponding electric meter through the relay electric meter, then record this electric meter as a communication failure meter and send the failure information to the server.

[0030] Step 400 can avoid using a meter that fails to communicate successfully as a relay meter when performing relay communication for a meter that has not collected data.

[0031] Further, S1: In the initial state, both the concentrator and the meters are set to the low-speed communication state;

[0032] S2: The concentrator sends a high-speed communication instruction to the meters in the low-speed communication mode. The meters receive the high-speed communication instruction from the concentrator in the low-speed communication mode and adjust their communication mode to the high-speed communication mode;

[0033] S3: When a meter does not receive any data within the set time T2, the meter adjusts itself to the low-speed communication mode; where 1.5T1 > T2 > 1.2T1. Establishing a communication handshake at low speed can ensure that it is not easily interfered with when establishing the communication handshake, ensuring that a communication line can be established between the concentrator and the meters; and the number of bytes required for establishing the communication handshake is very small, which can ensure the communication stability and ensure that the communication efficiency is not too low.

[0034] The beneficial effect of the present invention is that the present invention provides a concentrator information acquisition method that avoids information islands when the concentrator collects meter data. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, making other features, objects, and advantages of the present invention more obvious. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0036] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the elements and elements are not necessarily drawn to scale.

[0037] In the drawings:

[0038] Figure 1 is the overall flowchart according to an embodiment of the present invention;

[0039] Figure 2 is the flowchart of step 400 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0041] In addition, it should be noted that for the convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0042] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions executed by these devices, modules or units or their interdependent relationships.

[0043] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly specified otherwise in the context, it should be understood as "one or more".

[0044] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0045] Power line carrier technology is a way of data transmission by using power lines as the information propagation medium, and this technology is often used in remote meter reading systems. The technical solution described in a power line carrier communication device of Chinese patent document CN111654312A can be referred to. Therefore, after the power line carrier technology is applied to the remote meter reading field, the concentrator can establish an electrical signal connection with all the electric meters under the concentrator, and then obtain the data in the electric meters as Figure 1 shown.

[0046] In the existing technical solutions, for the electric meters that are greatly interfered by the outside world or are far from the concentrator between the concentrator and the electric meters, it is difficult to transmit data to the concentrator. Therefore, it is necessary to set multiple communication modules in the concentrator, and then design corresponding communication modules in the electric meters to carry out information transmission between the concentrator and the electric meters, so it is easy to cause an increase in cost.

[0047] At the same time, for the electric meters that are far from the concentrator, due to the reason of communication blockage, the concentrator is difficult to collect the information of the electric meters, and the phenomenon of information islands will occur. The currently commonly used solution is to set up a new information transmission device to establish a signal connection between the concentrator and the information islands.

[0048] Embodiment 1:

[0049] Refer to Figure 1 , the present invention provides a concentrator information acquisition method, including the following steps:

[0050] Step 100: Measure the communication response time between each electric meter and the concentrator.

[0051] During non - acquisition time, the concentrator measures the time for each electricity meter to establish a communication handshake with the concentrator to obtain the communication response time between each electricity meter and the concentrator.

[0052] The specific steps of step 100 are as follows:

[0053] Step 101: During the time when the concentrator does not receive the electricity consumption data of the electricity meters sent by the server, the concentrator establishes communication handshakes with each electricity meter in turn and records the time for establishing communication handshakes with each electricity meter.

[0054] Step 102: Sort the times for each electricity meter to establish communication handshakes with the concentrator from small to large to obtain a table of arranged electricity meter communication response times. For the electricity meters that do not establish communication handshakes within the set time T1, the communication response time is set to T1.

[0055] Where T1 is a preset value, generally set during the commissioning stage after the concentrator and all electricity meters are installed. The set value is usually 1.2 times the time for the last electricity meter to establish a communication handshake with the concentrator in the first test.

[0056] Step 103: Classify the electricity meters according to the communication response time. Among them, the electricity meters with the top 1 / 4 communication response times among all the electricity meters under the concentrator are classified into the first category, the electricity meters with the time to establish a communication handshake with the concentrator less than at least one of the average value or the median value among all the electricity meters under the concentrator are classified into the second category, and the remaining electricity meters are classified into the third category.

[0057] For example, please refer to Table 1. There are electricity meters 1 - 16 under the concentrator. Among them, the communication response times of electricity meters 1 - 16 are from high to low, and the average value of the times for electricity meters 1 - 16 to establish communication handshakes with the concentrator is less than the time for electricity meter 8 to establish a communication handshake with the concentrator, and the median value of the times for electricity meters 1 - 16 to establish communication handshakes with the concentrator is less than the time for electricity meter 12 to establish a communication handshake with the concentrator. Therefore, electricity meters 5 - 11 are classified into the second category, electricity meters 12 - 16 are classified into the third category, and electricity meters 1 - 4 are classified into the first category.

[0058] Table 1

[0059] Meter Serial Number Time to Establish Communication Handshake Category Meter 1 First Category …… First Category Meter 4 First Category Meter 5 Second Category …… Second Category Meter 11 Second Category Meter 12 Third Category …… Third Category Meter 16 Third Category

[0060] Step 200: Determine the relay electricity meters from each electricity meter to the concentrator.

[0061] According to the communication response time between each electricity meter and the concentrator, determine the relay electricity meters from each electricity meter to the concentrator.

[0062] Principle for determining relay electricity meters:

[0063] (1) The relay meters of each electricity meter can only be the electricity meters classified into the first category and the second category;

[0064] (2) Each electricity meter selects 3 electricity meters as relay meters. When the first relay meter is unavailable or in use, the second-choice relay meter is selected;

[0065] (3) When a certain electricity meter cannot find 3 relay meters among the first-category electricity meters and the second-category electricity meters, the records of the remaining relay meters are empty.

[0066] Step 200 specifically includes the following steps

[0067] Step 201: Each electricity meter establishes a communication handshake with other electricity meters in turn, and records the time when the communication handshake is established with each electricity meter;

[0068] Step 202: For the electricity meters that have not established a communication handshake within the set time T1, the communication response time is set to T1;

[0069] In this way, each electricity meter has a sorting for establishing a communication handshake with the other electricity meters;

[0070] Step 203: Each electricity meter sorts according to the time of establishing a communication handshake with other electricity meters, and sends the sorting table to the concentrator. The concentrator selects 3 first-category electricity meters as its communication relay meters from them. If there are less than 3, they are supplemented by second-category electricity meters; In this way, there are at least three relay meters for all electricity meters, and the relay meters in the first sequence of all electricity meters are recorded as the relay meters in the first sorting.

[0071] For example, the order of the time when electricity meter 5 establishes a communication handshake with other electricity meters is: electricity meter 6, electricity meter 3, electricity meter 2, electricity meter 7,...;

[0072] Then electricity meter 5 selects first, electricity meter 3 and electricity meter 2 as relay meters, and then selects electricity meter 6 as a relay meter;

[0073] In this way, through this method of the present application, the relay meters selected for each electricity meter can take into account the communication quality from the concentrator to the relay meters and also the communication quality between the electricity meters and the relay meters.

[0074] Step 204: For the electricity meters for which the concentrator has not received the sorting table, according to the sorting table containing this electricity meter sent by other electricity meters, select 3 first-category electricity meters as its communication relay meters. If there are less than 3, they are supplemented by second-category electricity meters.

[0075] If the electricity meter cannot find 3 relay meters among both the first-category electricity meters and the second-category electricity meters, then this electricity meter stops looking for relay meters, and the records of the remaining relay meters are empty.

[0076] Step 300: The concentrator collects the power consumption data of all the electricity meters.

[0077] After receiving the instruction from the server to collect the power consumption data of the electricity meters, the concentrator sends a signal collection instruction to all the electricity meters. The electricity meters send the power consumption data to the concentrator. After collecting the data, the concentrator determines whether there are any electricity meters from which data has not been collected. If there are electricity meters from which data has not been collected, then step 400 is executed.

[0078] Step 400: The concentrator collects the power consumption data of the electricity meters from which data has not been collected through relay communication.

[0079] The concentrator sequentially establishes a signal connection with the electricity meters from which data has not been collected through the relay electricity meters of the electricity meters from which data has not been collected, and then collects the power consumption data on the electricity meters from which data has not been collected.

[0080] Step 400 includes:

[0081] Step 401: Determine whether all the electricity meters from which data has not been collected have suitable relay electricity meters.

[0082] Determine whether the first-ranked relay electricity meters of all the electricity meters for which data collection has not been completed have also not completed data transmission. If the first-ranked relay electricity meters of the electricity meters for which data collection has not been completed are also the electricity meters for which data has not been collected, then this electricity meter executes step 402 to enable the concentrator to collect the data of this electricity meter, and the remaining electricity meters for which data has not been collected execute step 403 to enable the concentrator to collect the data of this electricity meter.

[0083] For example, the electricity meters for which data collection has not been completed are electricity meter 4, electricity meter 12, and electricity meter 13. Among them, the relay electricity meters of electricity meter 12 are electricity meter 4, electricity meter 6, and electricity meter 7. Then electricity meter 12 needs to execute step 402 to enable electricity meter 12 to find a new relay electricity meter again.

[0084] Step 402: The concentrator rematches the relay electricity meters for the electricity meters for which data has not been collected according to the data recorded in 200. After all the electricity meters for which data has not been collected have relay electricity meters, step 403 is executed.

[0085] For example, in step 200, the optimal relay electricity meter of electricity meter 12 is electricity meter 4, and the sub-optimal relay electricity meter is electricity meter 6. Then, on the basis that electricity meter 4 has not completed data transmission, the relay electricity meter of electricity meter 12 is electricity meter 6.

[0086] Step 403: The concentrator sequentially establishes a relay signal connection with all the electricity meters for which data has not been collected to complete the collection of the power consumption data of all the electricity meters.

[0087] For example, the concentrator first establishes a signal connection with the electricity meter 12 through the relay electricity meter of the electricity meter 6 to collect the data on the electricity meter 12; then the concentrator establishes a signal connection with the electricity meter 13 through the relay electricity meter of the electricity meter 13 to collect the data on the electricity meter 13, and so on. The concentrator collects the electricity consumption data of all electricity meters by using the relay electricity meters.

[0088] Step 404: Determine whether there is still an electricity meter for which data has not been collected.

[0089] If the concentrator still fails to collect the electricity consumption data of the corresponding electricity meter through the relay electricity meter, record this electricity meter as a communication failure meter and send the failure information to the server.

[0090] The present invention has the following beneficial effects:

[0091] (1) During the non-information collection time period, the communication handshake between the electricity meter and the concentrator and the confirmation of the relay electricity meter from the concentrator to the electricity meter are completed, which can not affect the collection of normal electricity consumption data.

[0092] (2) When selecting a relay electricity meter for the electricity meter, all electricity meters are classified according to the pre-tested results, so the difficulty and accuracy of selecting a relay electricity meter for all electricity meters can be reduced, and the accuracy of relay electricity meter selection is increased.

[0093] (3) When selecting a relay electricity meter for the electricity meter, three relay electricity meters are selected for each electricity meter, avoiding the situation that the relay electricity meter of an electricity meter for which data has not been collected is also an electricity meter for which data has not been collected.

[0094] The above description is only some preferred embodiments of the present disclosure and the description of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A concentrator information collection method, characterized in that Including the following steps: Step 100: During non-acquisition time, the concentrator measures the time for each electricity meter to establish a communication handshake with the concentrator to obtain the communication response time between each electricity meter and the concentrator; Step 100 includes: Step 101: During the time when the concentrator does not receive the instruction from the server to collect electricity consumption data of the electricity meters, the concentrator sequentially establishes communication handshakes with each electricity meter and records the time for establishing communication handshakes with each electricity meter; Step 102: Sort the times for each electricity meter to establish a communication handshake with the concentrator from smallest to largest to obtain a table of arranged electricity meter communication response times. For electricity meters that do not establish a communication handshake within the set time T1, the communication response time is set to T1; Step 103: Classify the electricity meters according to the communication response time. Among them, the electricity meters ranked in the top 1 / 4 of the communication response times among all the electricity meters under the concentrator are classified into the first category, and the electricity meters whose time to establish a communication handshake with the concentrator is less than at least one of the average or median among all the electricity meters under the concentrator are classified into the second category, and the remaining electricity meters are classified into the third category; Step 200: Determine the relay electricity meters from each electricity meter to the concentrator according to the communication response time between each electricity meter and the concentrator; Step 200 includes: Step 201: Each electricity meter sequentially establishes a communication handshake with other electricity meters and records the time for establishing communication handshakes with each electricity meter; Step 202: For electricity meters that do not establish a communication handshake within the set time T, the communication response time is set to T; Step 203: Each electricity meter sorts according to the time for establishing communication handshakes with other electricity meters and sends the sorting table to the concentrator. The concentrator selects 3 electricity meters of the first category as its communication relay electricity meters from them. If there are less than 3, they are supplemented by electricity meters of the second category; Step 204: For electricity meters for which the concentrator does not receive the sorting table, according to the sorting table with this electricity meter sent by other electricity meters, select 3 electricity meters of the first category as its communication relay electricity meters. If there are less than 3, they are supplemented by electricity meters of the second category; Step 300: After the concentrator receives the instruction from the server to collect electricity consumption data of the electricity meters, the concentrator sends a signal collection instruction to all the electricity meters, and the electricity meters send electricity consumption data to the concentrator; Step 400: The concentrator determines whether there are electricity meters for which data has not been collected according to the collected electricity consumption data. The concentrator records the electricity meters for which data has not been collected. The concentrator sequentially establishes a signal connection with the electricity meters for which data has not been collected through the relay electricity meters of the electricity meters for which data has not been collected, and then collects the electricity consumption data on the electricity meters for which data has not been collected.

2. The concentrator information collection method according to claim 1, characterized in that: In step 200, if the electricity meter cannot find 3 relay electricity meters among the electricity meters of the first category and the second category, then the electricity meter stops looking for relay electricity meters, and the remaining relay electricity meter records are empty.

3. The concentrator information collection method according to claim 1, wherein: Step 400 includes: Step 401: Determine whether the first-sorted relay electricity meter of all electricity meters for which data collection has not been completed is an electricity meter for which data collection has not been completed. If the first-sorted relay electricity meter of an electricity meter for which data collection has not been completed is also an electricity meter for which data collection has not been completed, then this electricity meter executes step 402 to enable the concentrator to collect the data of this electricity meter, and the remaining electricity meters for which data collection has not been completed execute step 403 to enable the concentrator to collect the data of this electricity meter; Step 402: The concentrator rematches relay meters for the electricity meters with uncompleted data collection according to the data recorded in 200. After all electricity meters with uncompleted data collection have relay meters, step 403 is executed; Step 403: The concentrator successively establishes relay signal connections with all electricity meters with uncompleted data collection to collect the data of all electricity meters from which data has not been collected; Step 404: If the concentrator still fails to collect the electricity consumption data of the corresponding electricity meter through the relay meter, record this electricity meter as a communication failure meter and send the failure information to the server.

4. The concentrator information collection method according to any one of claims 1 to 3, characterized in that: S1: In the initial state, both the concentrator and the electricity meter are set in the low-speed communication state; S2: The concentrator sends a high-speed communication instruction to the electricity meter in the low-speed communication mode, and the electricity meter receives the high-speed communication instruction of the concentrator in the low-speed communication mode and adjusts its communication mode to the high-speed communication mode; S3: When the electricity meter does not receive any data within the set time T2, the electricity meter adjusts itself to the low-speed communication mode; where 1.5T1 > T2 > 1.2T1.

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