A method for automatically matching user display units in a meter box

Abstract

The present invention discloses a method for automatically matching a user display unit in a meter box, comprising the following steps: configuring the user IDs of a main control unit, a metering unit and a user display unit in the meter box, and configuring the user ID of the user display unit to the metering unit; the metering unit automatically pushes information to be registered to the main control unit, and the main control unit files and stores the information of the metering unit and the user display unit; the user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful. The present invention solves the technical problem of how to automatically pair the user display unit in the meter box accurately and quickly and output the results.

Description

Technical Field

[0001] The invention relates to the technical field of electric power AMI, and in particular to an automatic matching method for a user display unit in a meter box. Background Art

[0002] A combined meter box generally contains 10-20 split-type energy meters and a main control unit; the split-type energy meter contains two independent parts, the meter unit and the customer information unit (hereinafter referred to as CIU), among which the meter unit is responsible for metering, and the customer information unit is mainly for user information display; the main control unit is responsible for control and communication, and each meter is equipped with a customer information unit. In foreign markets, in order to prevent users from stealing electricity, general meter boxes are installed on poles. If multiple meter boxes are installed together, there may be hundreds of meters installed together. Taking the communication frequency band range of 915MHz-928MHz as an example, the width of the frequency band is limited. If each meter is assigned a frequency point, it is easy to cause co-frequency interference; in order to reduce interference, each meter box generally uses a main frequency point, so that the interference between meter boxes will be greatly reduced, but this will bring a problem, which is the pairing problem of CIU and the meter box main control unit, because each energy meter is installed in which meter box, which can only be determined during on-site installation, and it is impossible to do the pairing in advance on site, and can only be paired on site, which is a huge workload. For user display units without keyboards, the user display units are only used for display and cannot be operated by users, so manual pairing cannot be performed on site. The user display units and main control units can only be paired one by one in the factory, which brings difficulties to transportation. The meter box needs to be fully installed before transportation; but in actual usage scenarios, the users under each meter box are uncertain. There may be all single-phase meters in a box, or single-phase meters and multi-phase meters, or all multi-phase meters. Sometimes empty meter positions are reserved for new users, so user display units and electric energy meters are often not shipped together with meter boxes. Then pairing becomes a problem. It is necessary to use a computer to configure after installation on site, which requires large manual input and inconvenient operation. Therefore, it is urgent to propose an automatic matching method for user display units in meter boxes to solve the technical problem of how to accurately and quickly automatically pair user display units in meter boxes and output results. Summary of the invention

[0003] The main purpose of the present invention is to propose a method for automatically matching user display units in a meter box, aiming to solve the technical problem of how to accurately and quickly automatically match user display units in a meter box and output the results.

[0004] To achieve the above object, the present invention provides a method for automatically matching a user display unit in a meter box, wherein the method for automatically matching a user display unit in a meter box comprises the following steps:

[0005] S1. Configure the user IDs of the main control unit, the metering unit and the user display unit in the metering box, and configure the user ID of the user display unit to the metering unit;

[0006] S2. The metering unit automatically pushes information to the main control unit for registration, and the main control unit files and stores the information of the metering unit and the user display unit;

[0007] S3. The user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful.

[0008] In one preferred embodiment, step S2 comprises:

[0009] The main control unit initiates pairing requests to the metering units that have not completed pairing using the default main frequency point in turn, and sets the status to pairing status after success.

[0010] In one preferred embodiment, step S2 comprises:

[0011] For the metering units of the electric energy meters that have completed pairing, data is pushed to the user display units in turn according to the main frequency points dispersed by the user ID number of the main control unit. If a communication abnormality occurs, the push is repeated. When data push abnormalities occur for M consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state. The main control unit uses the default main frequency point to initiate pairing with the user display unit for the unpaired metering units in turn until the pairing is successful again. After success, the metering unit is set to the paired state.

[0012] In one of the preferred solutions, the data format of the pairing frame is:

[0013] Frame header, destination address, control code, password, length, data field, checksum and frame trailer.

[0014] In one of the preferred solutions, the data field includes the user ID of the main control unit and the user ID of the metering unit. After the main control unit and the metering unit are successfully paired, the user display unit will update and store the user ID of the main control unit and the user ID of the metering unit.

[0015] One of the preferred solutions, in step S2, the main control unit automatically pairs with each metering unit in the metering box in turn through a pairing frame, and determines whether the pairing is successful after a data synchronization cycle, specifically:

[0016] When the system is powered on, it determines in turn whether the metering units of each energy meter are paired successfully;

[0017] If yes, the main control unit pushes data to the user display unit according to the main frequency points dispersed by the user ID; it is determined whether a correct response is received from the user display unit, if not, the push is repeated, and when data push abnormalities occur for M consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state; if yes, it is determined whether the data synchronization cycle is reached, if yes, the metering unit of the electric energy meter is paired in the next cycle;

[0018] If not, a pairing request is initiated to the user display unit according to the default main frequency point. If a correct response is received from the user display unit, the state of the electric energy meter measurement unit is set to the pairing state; otherwise, pairing is continued to be initiated after the next synchronization cycle.

[0019] In one of the preferred solutions, if the main control unit pushes data abnormally for five consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state.

[0020] One of the preferred solutions, in step S3, the user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful, specifically:

[0021] S31, the system is powered on, and it is determined whether the user display unit is paired successfully;

[0022] S32, if the user display unit is in a waiting-for-pairing state, the default main frequency point is used to wait for a pairing request or data push from the main control unit. If a correct pairing request is received, the user ID of the main control unit and the user ID of the metering unit are stored in the user display unit, and the user display unit is set to a paired state;

[0023] S33. If the user display unit is in pairing state, the main frequency point is allocated according to the user ID stored in the main control unit, and the main control unit is waited for data push or pairing. If the correct data push is not received for the first consecutive time interval, the state of the user display unit is set to the waiting for pairing state, and step S32 is used for pairing.

[0024] One of the preferred solutions is that the meter box is provided with a plurality of electric energy meters, and the electric energy meters include a metering unit and a user display unit. The main frequency points of all electric energy meters in the meter box are the same, and decentralized calculations are performed according to the user ID of the main control unit.

[0025] In one of the preferred solutions, during the communication between the electric energy meter and the main control unit, a frequency hopping mechanism is used for pairing communication within the main frequency band of the electric energy meter.

[0026] In the above technical solution of the present invention, the automatic matching method of the user display unit in the meter box includes the following steps: configuring the user IDs of the main control unit, the metering unit and the user display unit in the meter box, and configuring the user ID of the user display unit to the metering unit; the metering unit automatically pushes information to be registered to the main control unit, and the main control unit files and stores the information of the metering unit and the user display unit; the user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful. The present invention solves the technical problem of how to accurately and quickly automatically pair the user display unit in the meter box and output the results.

[0027] In the present invention, the main frequency points of all the electric energy meters in the meter box are kept the same, and decentralized calculations are performed according to the user ID of the main control unit, thereby ensuring that the main frequency points of different meter boxes are different. At the same time, during the communication process, a frequency hopping mechanism is adopted within the main frequency band, thereby effectively avoiding the same-frequency interference in communication when the meter boxes are installed centrally. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of an automatic matching method for a user display unit in a meter box according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the automatic pairing process of the main control unit according to an embodiment of the present invention;

[0031] Figure 3 Schematic diagram of the automatic pairing process of the user display unit according to an embodiment of the present invention.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0036] Furthermore, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] See also Figure 1-Figure 3 According to one aspect of the present invention, the present invention provides a method for automatically matching a user display unit in a meter box, wherein the method for automatically matching a user display unit in a meter box comprises the following steps:

[0038] S1. Configure the user IDs of the main control unit, the metering unit and the user display unit in the metering box, and configure the user ID of the user display unit to the metering unit;

[0039] S2. The metering unit automatically pushes information to the main control unit for registration, and the main control unit files and stores the information of the metering unit and the user display unit;

[0040] S3. The user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful.

[0041] Specifically, in this embodiment, in step S1, a user ID is respectively configured for the main control unit in the meter box and the user display unit and the metering unit of the electric energy meter. During the factory production process, each device is configured with its own user ID, and the user ID of the user display unit is configured to the metering unit. At the same time, it can be issued on site through system configuration. The present invention does not make specific limitations and can be set according to needs.

[0042] Specifically, in this embodiment, the main control unit performs automatic pairing in step S2. After the data synchronization cycle is reached, there are mainly two processing paths, including:

[0043] Path 1: The main control unit initiates pairing requests to the metering units that have not completed pairing using the default main frequency point in turn, and sets the status to pairing status after success;

[0044] Path 2: For the metering unit of the electric energy meter that has completed pairing, data is pushed to the user display unit in turn according to the main frequency points dispersed by the user ID number of the main control unit. If a communication abnormality occurs, the push is repeated. When data push abnormalities occur for M consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state. The main control unit uses the default main frequency point to initiate pairing with the user display unit for the unpaired metering unit in turn until the pairing is successful again. After success, the metering unit is set to the paired state.

[0045] Specifically, in this embodiment, the data format of the pairing frame is:

[0046] Frame header, destination address, control code, password, length, data field, checksum and frame tail; wherein, the data field includes the user ID of the main control unit and the user ID of the metering unit. After the main control unit and the metering unit are successfully paired, the user display unit will update the user ID of the main control unit and the user ID of the metering unit.

[0047] Specifically, in this embodiment, in step S2, the main control unit automatically pairs with each metering unit in the metering box in turn through a pairing frame, and after a data synchronization cycle, determines whether the pairing is successful, specifically:

[0048] When the system is powered on, it determines in turn whether the metering units of each energy meter are paired successfully;

[0049] If yes, the main control unit pushes data to the user display unit according to the main frequency points dispersed by the user ID; it is determined whether a correct response is received from the user display unit. If not, the push is repeated and the number of repetitions i is recorded. If the number of repetitions i is greater than 2, the failure round j is further determined. If the failure round is greater than 4, that is, when data push abnormalities occur in five consecutive data synchronization cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state; if yes, it is determined whether the data synchronization cycle has been reached. If yes, the metering unit of the electric energy meter is paired in the next cycle;

[0050] If not, a pairing request is initiated to the user display unit according to the default main frequency point. If a correct response is received from the user display unit, the state of the electric energy meter measurement unit is set to the pairing state; otherwise, pairing is continued to be initiated after the next synchronization cycle.

[0051] Specifically, in this embodiment, when a new product is not paired, the product is in a waiting-for-pairing state. After power-on, the judgment is performed according to path one. When the main control unit is subjected to file adjustment or pairing status clearing operations such as remote or local communication, the pairing state will also be switched to a waiting-for-pairing state, and the judgment is performed according to path one.

[0052] Specifically, in this embodiment, the step S3 automatically pairs the user display unit with the main control unit through a pairing frame, and determines whether the pairing is successful, specifically:

[0053] S31, the system is powered on, and it is determined whether the user display unit is paired successfully;

[0054] S32, if the user display unit is in a waiting-for-pairing state, the default main frequency point is used to wait for a pairing request or data push from the main control unit. If a correct pairing request is received, the user ID of the main control unit and the user ID of the metering unit are stored in the user display unit, and the user display unit is set to a paired state;

[0055] S33. If the user display unit is in pairing state, the main frequency point is allocated according to the user ID stored in the main control unit, and the main control unit is waited for data push or pairing. If the correct data push is not received for the first consecutive time interval, the state of the user display unit is set to the waiting for pairing state, and step S32 is used for pairing until the pairing is successful.

[0056] Specifically, in this embodiment, the first time interval is 135s. In the present invention, the number of repetitions i, the number of failure rounds j and the first time interval can be set as needed. The setting of the first time interval must follow the following principles:

[0057] If the data synchronization cycle is 30 seconds and a round of repeated operations takes 1 second, then

[0058] j*data synchronization period+(i+1)*1<(j+1)*data synchronization period

[0059] After substituting the parameters: 4*30+(2+1)*1<first time interval<(4+1)*30

[0060] After calculation, it is obtained that 123s<first time interval<150s, therefore, the first time interval is configured to 135s, which can ensure that during the abnormal 5 communication retries, the corresponding main control unit and user display unit can maintain the original frequency point, and before the sixth synchronization cycle, the two devices can switch to the default main frequency point and quickly complete the re-pairing, thereby ensuring that both are new and unpaired, and the pairing will be successful when powered on. When one party is already paired and the other is not paired or the pairing information is cleared, the pairing can also be completed after the first time interval.

[0061] Specifically, in this embodiment, the meter box is provided with a plurality of electric energy meters, each of which includes a metering unit and a user display. The main frequency points of all the electric energy meters in the meter box are the same, and decentralized calculations are performed based on the user ID of the main control unit. During the communication between the electric energy meter and the main control unit, a frequency hopping mechanism is used for pairing communication within the main frequency band of the electric energy meter.

[0062] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A method for automatically matching a user display unit in a metering box, characterized in that: The following steps are involved: S1. Configure the user IDs of the main control unit, the metering unit and the user display unit in the metering box, and configure the user ID of the user display unit to the metering unit; S2. The metering unit automatically pushes information to the main control unit for registration, and the main control unit files and stores the information of the metering unit and the user display unit; S3. The user display unit automatically pairs with the main control unit through a pairing frame, and determines whether the pairing is successful.

2. The method for automatically matching a user display unit in a metering box according to claim 1, characterized in that: The step S2 comprises: The main control unit initiates pairing requests to the metering units that have not completed pairing using the default main frequency point in turn, and sets the status to pairing status after success.

3. A method for automatically matching a user display unit in a metering box according to any one of claims 1 to 2, characterized in that: The step S2 comprises: For the metering units of the electric energy meters that have completed pairing, data is pushed to the user display units in turn according to the main frequency points dispersed by the user ID number of the main control unit. If a communication abnormality occurs, the push is repeated. When data push abnormalities occur for M consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state. The main control unit uses the default main frequency point to initiate pairing with the user display unit for the unpaired metering units in turn until the pairing is successful again. After success, the metering unit is set to the paired state.

4. A method for automatically matching a user display unit in a metering box according to any one of claims 1 to 2, characterized in that: The data format of the pairing frame is: Frame header, destination address, control code, password, length, data field, checksum and frame trailer.

5. The method for automatically matching a user display unit in a meter box according to claim 4, characterized in that: The data domain includes the user ID of the main control unit and the user ID of the metering unit. After the main control unit is successfully paired with the metering unit, the user display unit will update and store the user ID of the main control unit and the user ID of the metering unit.

6. A method for automatically matching a user display unit in a meter box according to any one of claims 1 to 2, characterized in that: In step S2, the main control unit automatically pairs with each metering unit in the metering box in turn through a pairing frame, and after a data synchronization cycle, determines whether the pairing is successful, specifically: When the system is powered on, it determines in turn whether the metering units of each energy meter are paired successfully; If so, the main control unit pushes data to the user display unit according to the main frequency points dispersed by the user ID; Determine whether a correct response is received from the user display unit. If not, repeat the push. When data push abnormality occurs for M consecutive cycles, switch the state of the metering unit of the electric energy meter to an unpaired state. If yes, it is determined whether the data synchronization cycle has been reached, and if yes, the pairing of the electric energy meter measurement units of the next cycle is performed; If not, a pairing request is initiated to the user display unit according to the default main frequency point. If a correct response is received from the user display unit, the state of the electric energy meter measurement unit is set to the pairing state; otherwise, pairing is continued to be initiated after the next synchronization cycle.

7. A method for automatically matching a user display unit in a metering box according to claim 6, characterized in that: If the main control unit pushes data abnormally for five consecutive cycles, the state of the metering unit of the electric energy meter is switched to an unpaired state.

8. A method for automatically matching a user display unit in a meter box according to any one of claims 1 to 2, characterized in that: In step S3, the user display unit automatically pairs with the main control unit through a pairing frame and determines whether the pairing is successful, specifically: S31, the system is powered on, and it is determined whether the user display unit is paired successfully; S32, if the user display unit is in a waiting-for-pairing state, the default main frequency point is used to wait for a pairing request or data push from the main control unit. If a correct pairing request is received, the user ID of the main control unit and the user ID of the metering unit are stored in the user display unit, and the user display unit is set to a paired state; S33. If the user display unit is in pairing state, the main frequency point is allocated according to the user ID stored in the main control unit, and the main control unit is waited for data push or pairing. If the correct data push is not received for the first consecutive time interval, the state of the user display unit is set to the waiting for pairing state, and step S32 is used for pairing.

9. A method for automatically matching a user display unit in a meter box according to any one of claims 1 to 2, characterized in that: The meter box is provided with a plurality of electric energy meters, each of which includes a metering unit and a user display unit. The main frequency points of all electric energy meters in the meter box are the same, and decentralized calculation is performed according to the user ID of the main control unit.

10. The method for automatically matching a user display unit in a metering box according to claim 8, characterized in that: During the communication between the electric energy meter and the main control unit, a frequency hopping mechanism is used to perform pairing communication within the main frequency band of the electric energy meter.

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