Multi-energy type charging management system based on intelligent energy meter

Abstract

The invention discloses a multi-energy-type charging management system based on an intelligent energy meter, and aims at automatically and compatibly processing charging processes of different energy sources. The system receives intelligent energy meter data through the edge computing gateway, verifies the reasonability of meter reading data, can timely inform engineers of offline inspection after data errors occur, and ensures the stability of energy charging. And various charging strategies are adopted to adapt to different energy types. In addition, the system comprises a credit management mechanism and a prepayment mode, service interruption caused by arrearage is prevented, combined metering of a plurality of instruments is processed so as to improve the charging efficiency, and meanwhile, a switch-on and switch-off command can be issued to the equipment according to the updated equipment balance. The new system brings convenience to the user, avoids multi-head multi-time payment, and does not affect the user to inquire various energy consumption and expenses; the system is simple in structure and convenient for an energy management unit, can achieve independent charging and unified charging, does not need multi-head payment reminding, can conveniently implement combined energy consumption management and control for users who refuse to pay, and improves the guarantee and management efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of energy billing, and in particular to a multi-energy type billing management system based on a smart energy meter. Background Art

[0002] In the field of modern energy utilization and management, especially in environments such as smart cities, smart buildings and industrial automation, there is a need for effective billing of multiple energy sources (electricity, water, gas, etc.).

[0003] Traditional energy billing systems often only target a single energy type, lack flexibility, and are difficult to adapt to complex rate structures and diverse billing strategies; and users need to pay separately for different energy sources, which brings certain troubles and annoyances to the majority of users. In addition, traditional billing systems are inefficient in processing multi-source data, real-time billing updates, and tiered rate calculations. These limitations lead to inaccurate billing, poor user experience, and low management efficiency. There is an urgent need for an efficient solution that can integrate multiple energy types and multi-strategy billing. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of multiple energy consumption and multiple billing modes in the prior art, and to provide a flexible and efficient billing management system that adapts to multi-energy and multi-strategy billing requirements.

[0005] To achieve the above purpose, the present invention designs a multi-energy type billing management system based on a smart energy meter, the billing management system comprises an account opening module, a recharge module, a data acquisition and processing module and a billing module connected in sequence, and the billing module is connected to the recharge module. After the billing is completed, it is determined whether there is a recharge behavior. If so, the recharge function is executed, otherwise, data acquisition and processing and billing are continued, and the process is executed in a loop until the user logs out; The multiple energy types include at least two of water, electricity, gas, and steam (also known as thermal energy); The account opening module sets an identity identifier (also known as a name identifier or ID identifier) ​​corresponding to the energy meter (i.e., charging device), a user login account (also known as a management account or user account) corresponds to a group of several identity identifiers, and sets a corresponding payment account (or recharge account) according to the identity identifier, including one identity identifier corresponding to one payment account or several identity identifiers corresponding to one payment account; each of the identity identifiers also corresponds to at least one billing scheme (also known as a billing strategy). Through the above settings, the system has the basic conditions to support multi-energy and multi-strategy billing logic; The recharge module decides whether to issue a closing command (re-supplying the corresponding energy supply) to the energy supply that has been disconnected (indicating that the corresponding energy supply has been cut off) according to the sum of the payment account balance, the recharge amount and the credit amount; The data collection process includes: S31, meter reading, data collection, and checking whether the corresponding energy meter is an account-opened meter and participates in the billing calculation. If yes, proceed to the next step, otherwise, the program ends directly; S32, data time comparison, compare the timestamp with the last cached meter reading data, if it has not expired, continue to the next step after caching, if it has expired (the new timestamp is earlier than the timestamp of the last cached meter reading data), then enter the abnormal meter reading alarm and end the program; S33, data value comparison, i.e., check the rationality of the latest metering data value. If the latest metering data is greater than the most recent cached data, the billing process of the billing module will continue to be executed; otherwise, the abnormal meter reading alarm will be entered and the program will be terminated; The billing mode of the billing module includes one of an account direct transfer mode, a prepaid mode or a guaranteed supply mode, and the billing process includes the steps of locking the energy meter to be billed before billing starts and unlocking the energy meter to be billed after billing is completed.

[0006] Furthermore, the billing scheme includes any items of a single unit price, a multi-rate unit price, a tiered unit price, etc.

[0007] Furthermore, locking the energy meter includes locking the payment or recharge operation corresponding to the energy meter to be billed.

[0008] Furthermore, the billing mode also includes a combined metering mode: if there is a combined metering of 2 or more similar energy meters, the system will deduct the corresponding fees from the total balance of the combined metering; if the balance is lower than the set credit amount (the present invention refers to the allowed credit amount), the system will perform a disconnection operation on all combined metering meters (except for the energy meters corresponding to the supply guarantee equipment); the combined metering includes several energy meters sharing the same account and / or several energy meters sharing account balances.

[0009] Furthermore, the prepayment model also includes limit credit management: when the user's energy usage fee exceeds his account balance, the system allows the user to continue to use energy within a certain limit, thereby providing a certain degree of flexibility and convenience.

[0010] Furthermore, the billing model also includes a public area apportionment billing model: in the case where public area energy costs need to be shared, the system can support customers to apportion the public area energy costs to end users according to proportion and area, so as to realize public area energy consumption charges.

[0011] Furthermore, the billing model also includes other fee management modes: to meet the user's various charging scenarios including property fees, parking fees, etc., the system supports users to set up a one-time payment bill, and also supports users to generate payment bills on a monthly or annual basis.

[0012] Furthermore, the account opening process of the account opening module user includes: S11. Enter basic user information, including user name, login account, query password, contact number, etc., so that the system can identify the user's identity and also verify the user's permission to view their own device data; S12. Input or select the energy meter to be bound, and set the identity and payment account number, including the bank account number if the payment is transferred from a bank account; S13, set the billing scheme corresponding to the energy meter, that is, the billing strategy of the equipment, including single unit price, multi-rate unit price, tiered unit price, etc.; S14. Set the balance alarm threshold of the corresponding energy meter. The system supports setting the balance threshold alarm on demand to remind users to pay. S15. The system also supports inputting the amount of credit corresponding to the energy meter. When the amount is in arrears, the energy can be used within a certain amount. S16. Check whether to enable the prepaid mode and / or the guaranteed supply mode; S17, if you need to continue adding new energy meters, go to step S12 and execute it in a loop, otherwise go to the next step; S18. Check the energy meters for combined measurement, and the account opening process is completed. The combined measurement includes energy meters of the same type or different types, and also includes some energy meters or all energy meters.

[0013] Furthermore, the recharging process of the recharging module includes: S21, locking the energy meter to be billed to prevent concurrent problems with the billing process, resulting in inaccurate balance calculation, and generally locking the corresponding account; S22, obtaining the account balance or prepaid balance of the energy meter to be billed; S23, calculate the new balance according to the recharge amount, the original balance, and the prepaid fee, update the database, and generate a recharge order; when the balance is greater than or equal to zero and the corresponding energy meter is in the off state, go to step S25; when the balance is greater than or equal to zero but the corresponding energy meter is in the on state, go to step S26; if the balance is less than zero and the prepaid service is not turned on, go to step S26 after the insufficient recharge alarm (maintaining the previous state is generally the off state, and the on state in the supply guarantee mode); if the balance is less than zero and the prepaid service is turned on, go to the next step; S24. For the prepaid mode, calculate the sum of the new balance and the allowed credit amount. If it is greater than or equal to zero, proceed to the next step; if it is less than zero, proceed to step S26 (maintain the previous state, generally the open state, and the closed state in the supply guarantee mode); S25. Issue a closing command for the corresponding energy meter, including closing commands for multiple energy meters, to restore the water, electricity and other energy supplies that were previously disconnected due to arrears; S26: Unlock the energy meter to be billed, and the recharging process ends.

[0014] Furthermore, the billing process of the billing module includes: S41, the energy meter to be billed is locked, and the billing is continued to ensure that the current billing is not affected by concurrent processes and the singleness and accuracy of cost accounting. This step is a continuation of step S33; S42, billing deduction and balance calculation to update the database, calculate the fee to be deducted for this meter reading according to the set billing plan and the difference between the meter reading (and the previous meter reading value), and deduct it from the corresponding payment account or prepaid payment, calculate and update the balance (called single meter balance) or arrears information and save it in the database, and generate a deduction record for future tracing; generally, each energy meter has an independent balance, arrears and alarm amount settings. If the payment account is shared, at least the balance information is shared.

[0015] S43, combined metering analysis: if the user has enabled combined metering, the sum of the corresponding payment account balances of all energy meters for combined metering under the user's name is calculated, i.e., the combined balance, and the balance or arrears information is updated again; if not enabled, proceed directly to the next step; S44, balance alarm judgment, judging whether the combined balance or the single meter balance meets the alarm condition, if it does, an alarm is given, if not (i.e. the balance is sufficient), the process goes to step S47 (ending the program after unlocking the energy meter to be billed); S45, prepayment analysis: if the user has enabled the prepayment mode, the sum of the combined balance, prepayment fees, and credit amount is calculated. If the sum is greater than or equal to 0, the process proceeds to step S47; otherwise, the process proceeds to the next step. If the prepayment mode is not enabled, the process proceeds directly to the next step. S46, analysis of the supply guarantee mode. If the user has enabled the supply guarantee mode, the supply is guaranteed and an overdue payment alarm is issued to proceed to the next step. If the supply guarantee mode is not enabled, a trip command is issued to the corresponding energy meter and then proceed to the next step. S47, the program ends after unlocking the energy meter to be billed.

[0016] The advantages and beneficial effects of the present invention are as follows: the present invention belongs to the field of energy billing technology, and in particular, proposes a multi-strategy billing system for multiple energy sources (such as electricity, water resources, natural gas, steam, etc.), which focuses on implementing flexible and efficient fee calculations in multiple energy consumption scenarios. The core is to adapt to different energy types and perform accurate fee calculations according to a variety of billing strategies (such as single rate, compound rate, and tiered rate). The technology is suitable for environments that require the integration of multiple energy consumption and multiple billing modes, such as smart campuses, smart cities, industrial facilities, etc., and aims to provide users with economical and efficient billing solutions and optimize the fee management process. The new system is convenient for users, avoiding multiple payments, but does not affect users' inquiries on various energy consumption and costs; it is also convenient for energy management units, which can charge separately or uniformly without multiple reminders, and can easily implement joint energy control for users who refuse to pay, thereby improving security and management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the principle structure of the system of the present invention; Figure 2 This is a schematic diagram of the user account opening process of the present invention; Figure 3 This is a schematic diagram of the recharge process of the present invention; Figure 4 It is a schematic diagram of the data processing and billing process of the present invention. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] Embodiment 1: The present invention provides a multi-energy type billing management system based on a smart energy meter, such as Figure 1 As shown, the billing management system includes an account opening module, a recharge module, a data collection and processing module and a billing module connected in sequence, and the billing module is connected to the recharge module. After the billing is completed, it is determined whether there is a recharge behavior. If so, the recharge function is executed, otherwise, data collection and processing and billing are continued. The process is executed in a loop until the user logs out; The multiple energy types include at least two of water, electricity, gas, and steam (also known as thermal energy); this embodiment includes unified billing for the above four energy types; The account opening module sets an identity identifier (also known as a name identifier or ID identifier) ​​corresponding to the energy meter (i.e., charging device), a user login account (also known as a management account or user account) corresponds to a group of several identity identifiers, and sets a corresponding payment account (or recharge account) according to the identity identifier, including one identity identifier corresponding to one payment account or several identity identifiers corresponding to one payment account; each of the identity identifiers also corresponds to at least one billing scheme (also known as a billing strategy). Through the above settings, the system has the basic conditions to support multi-energy and multi-strategy billing logic; The recharge module decides whether to issue a closing command (re-supplying the corresponding energy supply) to the energy supply that has been disconnected (indicating that the corresponding energy supply has been cut off) according to the sum of the payment account balance, the recharge amount and the credit amount. If the corresponding energy supply is not disconnected, the balance is recorded and the main program flow is returned. Note that the credit amount of the present invention is essentially an amount allowed to be credited, rather than a direct debt, and a direct debt is represented by a negative balance. The data collection process includes: S31, meter reading, data collection, and checking whether the corresponding energy meter is an account-opened meter and participates in the billing calculation. If it is, it goes to the next step, otherwise it ends the program directly; the system of the present invention receives the meter reading (i.e., energy meter) data uploaded by the edge computing gateway, and automatically receives and processes the energy meter data through the edge computing gateway to realize intelligent billing; S32, data time comparison, compare the timestamp with the meter reading data cached last time, if it is not expired, continue to the next step after caching, if it is expired (the new timestamp is earlier than the timestamp of the meter reading data cached last time), then turn to abnormal meter reading alarm and end the program; the system first checks whether the new meter reading data is the latest metering data, the latest metering data includes metering data whose corresponding sampling time is later than the corresponding sampling time of the metering data that has been billed, that is, the latest data of the energy meter to be billed, if it is not the latest metering data, turn to abnormal meter reading alarm and end the program; S33, data value comparison, i.e., check the rationality of the latest metering data value. If the latest metering data is greater than the nearest cached data (except for the full-scale zero crossing, in which case, the full-scale data of the meter should generally be added to the meter reading result with a smaller new data value, and the data should be the actual energy consumption data), then the energy meter to be billed is locked, and the billing process of the billing module is continued; otherwise, the program ends after entering the abnormal meter reading alarm; The billing mode of the billing module includes one of the following modes: direct account transfer mode, prepayment mode or guaranteed supply mode. The billing process includes the steps of locking the energy meter to be billed before billing starts and unlocking the energy meter to be billed after billing is completed, so as to prevent confusion or errors in fee calculation caused by multiple concurrent processes. The direct account transfer mode includes transferring the consumption amount from the agreed user payment account or bank account to the charging account, which is one of the commonly used payment methods. The prepayment mode is designed to reduce the risks of power outages and water outages caused by arrears. The user pays the funds in advance and consumes energy within the allowed amount. This is also one of the commonly used payment methods. The guaranteed supply mode is mainly for special users, such as users related to national economy and people's livelihood, such as water plant electricity, partial hospital electricity, boiler water, power plant gas, etc. Even if the account is in arrears, the meter will not be disconnected to ensure the continuous operation of key facilities or services. The collection of overdue fees needs to be completed through other channels.

[0020] Preferably, the billing schemes include a single unit price, a multi-rate unit price, a tiered unit price, etc. The user or system administrator selects one of the schemes or a combination of several schemes under different circumstances according to the determined rules.

[0021] Preferably, locking the energy meter includes locking the payment or recharge operation corresponding to the energy meter to be billed, that is, only one fee operation can be performed once in the same time period to prevent concurrency problems in other system processes, or concurrency problems in recharge and billing processes, resulting in inaccurate balance calculation or inaccurate balance calculation.

[0022] Preferably, the billing mode also includes a combined metering mode: if there is a combined metering of 2 or more similar energy meters, the system will deduct the corresponding fee from the total balance of the combined metering; if the balance is lower than the set credit amount (the present invention refers to the allowed credit amount), the system will perform a gate operation on all the combined metering meters (except for the energy meters corresponding to the supply guarantee equipment); the combined metering includes a number of energy meters sharing the same account and / or a number of energy meters sharing account balances, that is, different energy meters (including different types of meters and meters of the same type with different identity identifications) can share the same account for fee addition and settlement, or different account balances of different meters can share fee addition and settlement, which can be compatible with different payment modes and payment habits of new and old customers, which greatly facilitates the majority of users and the fee settlement work of energy management units; in actual applications, the meters, corresponding accounts and combinations involved in the combined metering can be flexibly selected and pre-configured according to user needs, including one-way combined metering, that is, a meter can share the balances of several other accounts, but the balance of this account is not provided to other meters for sharing, etc.

[0023] Preferably, Figure 2As shown, the account opening process of the account opening module user includes: S11. Enter basic user information, including user name, login account, query password, contact number, etc., so that the system can identify the user's identity and also verify the user's permission to view their own device data; S12. Input or select the energy meter to be bound, and set the identity and payment account number, including the bank account number if the payment is transferred from a bank account; S13, set the billing scheme corresponding to the energy meter, that is, the billing strategy of the equipment, including single unit price, multi-rate unit price, tiered unit price, etc.; S14. Set the balance alarm threshold of the corresponding energy meter. The system supports setting the balance threshold alarm on demand to remind users to pay. S15. The system also supports inputting the amount of credit corresponding to the energy meter. When the amount is in arrears, the energy can be used within a certain amount. S16. Check whether to enable the prepaid mode and / or the guaranteed supply mode; S17, if you need to continue adding new energy meters, go to step S12 and execute it in a loop, otherwise go to the next step; S18. Check the energy meters for combined measurement, and the account opening process is completed. The combined measurement includes energy meters of the same type or different types, and also includes some energy meters or all energy meters.

[0024] Preferably, Figure 3 As shown, the recharge process of the recharge module includes: S21, locking the energy meter to be billed to prevent concurrent problems with the billing process, resulting in inaccurate balance calculation, and generally locking the corresponding account; S22, obtaining the account balance or prepaid balance of the energy meter to be billed; S23, calculate the new balance according to the recharge amount, the original balance, and the prepaid fee, update the database, and generate a recharge order; when the balance is greater than or equal to zero and the corresponding energy meter is in the off state, go to step S25; when the balance is greater than or equal to zero but the corresponding energy meter is in the on state, go to step S26; if the balance is less than zero and the prepaid service is not turned on, go to step S26 after the insufficient recharge alarm (maintaining the previous state is generally the off state, and the on state in the supply guarantee mode); if the balance is less than zero and the prepaid service is turned on, go to the next step; S24. For the prepaid mode, calculate the sum of the new balance and the allowed credit amount. If it is greater than or equal to zero, proceed to the next step; if it is less than zero, proceed to step S26 (maintain the previous state, generally the open state, and the closed state in the supply guarantee mode); S25. Issue a closing command for the corresponding energy meter, including closing commands for multiple energy meters, to restore the water, electricity and other energy supplies that were previously disconnected due to arrears; S26: Unlock the energy meter to be billed, and the recharging process ends.

[0025] Preferably, Figure 4 As shown, the billing process of the billing module includes: S41, the energy meter to be billed is locked, and the billing is continued to ensure that the current billing is not affected by concurrent processes and the singleness and accuracy of cost accounting. This step is a continuation of step S33; S42, billing deduction and balance calculation to update the database, calculate the fee to be deducted for this meter reading according to the set billing plan and the difference between the meter reading (and the previous meter reading value), and deduct it from the corresponding payment account or prepaid payment, calculate and update the balance (called single meter balance) or arrears information and save it in the database, and generate a deduction record for future tracing; generally, each energy meter has an independent balance, arrears and alarm amount settings. If the payment account is shared, at least the balance information is shared.

[0026] S43, combined metering analysis: if the user has enabled combined metering, the sum of the corresponding payment account balances of all energy meters for combined metering under the user's name is calculated, i.e., the combined balance, and the balance or arrears information is updated again; if not enabled, proceed directly to the next step; S44, balance alarm judgment, judging whether the combined balance or the single meter balance meets the alarm condition, if it meets the condition, an alarm is given, if not (i.e. the balance is sufficient), the process goes to step S47 (ending the program after unlocking the energy meter to be billed); the alarm condition can be uniformly set to an alarm amount greater than or equal to 0 according to the nature of the user, and an alarm signal is given if the balance is less than or equal to the alarm amount; S45, prepayment analysis: if the user has enabled the prepayment mode, the sum of the combined balance, prepayment fees, and credit amount is calculated. If the sum is greater than or equal to 0, the process proceeds to step S47; otherwise, the process proceeds to the next step. If the prepayment mode is not enabled, the process proceeds directly to the next step. S46, analysis of the supply guarantee mode. If the user has enabled the supply guarantee mode, the supply is guaranteed and an overdue payment alarm is issued to proceed to the next step. If the supply guarantee mode is not enabled, a trip command is issued to the corresponding energy meter and then proceed to the next step. S47, the program ends after unlocking the energy meter to be billed.

[0027] The present invention is based on the automatic uploading of meter reading data by smart devices. After the system receives the meter reading data uploaded by the device (i.e., energy meter), it will first verify the data to ensure the legitimacy and correctness of the data. Figure 2The account opening process shown in the figure does not participate in the calculation, and the billing process ends directly. The system reads the last meter reading data of the device from the cache and records the last data value and timestamp for time and data comparison. Based on whether the time interval between the current data and the last data is within the specified range and whether there are abnormalities between the current meter reading value and the last meter reading value, if there are abnormalities, a deduction abnormality alarm record will be generated to notify relevant personnel to check the operation of the device, and the billing process ends.

[0028] After the data processing verification is successful, the system will immediately lock the device to prevent other processes in the system from having concurrency problems and causing inaccurate balance calculations. Next, the system will calculate the amount to be deducted based on the set billing plan and the difference in meter readings, update the balance and save it in the database, and generate a deduction record for future tracing. The system will then check whether the user to whom the device belongs has enabled combined metering. If enabled, it is necessary to calculate whether the sum of the balances of all the user's devices meets the balance alarm conditions, issue a balance alarm, and notify the user to pay on time. After that, it is necessary to check whether the user has enabled the prepaid mode and the guaranteed supply mode. It is necessary to calculate whether the sum of the balances and the amount owed for all devices is greater than 0. If it is greater than or equal to 0, the lock of the device is directly released and the billing process ends; if the guaranteed supply mode is not enabled, the corresponding device needs to be issued a switch-on and switch-off command for arrears. After arrears, the customer cannot use electricity or water normally.

[0029] Embodiment 2: The difference from Example 1 is that this embodiment only implements unified billing management for water and electricity.

[0030] Embodiment 3: The difference from Example 1 is that the prepayment mode described in this embodiment also includes a limit credit management: when the energy usage fee of the user exceeds the balance of his account, the system allows the user to continue to use energy within a certain limit, thereby providing a certain degree of flexibility and convenience; this credit mechanism is particularly suitable for users with temporary capital shortages, and can ensure that they will not be immediately cut off from electricity or water in an emergency. Of course, once the credit amount exceeds the preset limit, the system will implement corresponding restrictive measures, such as disconnection operation, to protect the interests of the service provider.

[0031] Embodiment 4: The difference from Example 1 is that the billing model described in this embodiment also includes a public area apportionment billing model: in the case where public area energy costs need to be shared, the system can support customers to apportion the public area energy costs to end users according to proportion and area, so as to realize public area energy consumption charges.

[0032] Embodiment 5: The difference from Example 4 is that the billing model described in this embodiment also includes other fee management models: in order to meet the user's various charging scenarios including property fees, parking fees, etc., the system supports users to set up a one-time payment bill, and also supports users to generate payment bills on a monthly or annual basis.

[0033] The above are only some of the more systematic and comprehensive multi-energy type billing management system embodiments of the present invention. In fact, the same energy, different time periods, and different users may have different billing strategies and / or billing modes. Unified billing management can also include other energy sources such as diesel, gasoline, methane, and other amortization expenses of households and enterprises. These combinations or preferred schemes should also be regarded as the scope of protection of the present invention and will not be listed here one by one.

Claims

1. A multi-energy type billing management system based on smart energy meter, characterized in that: The billing management system includes an account opening module, a recharge module, a data collection and processing module, and a billing module connected in sequence, and the billing module is connected to the recharge module. After the billing is completed, it is determined whether there is a recharge behavior. If so, the recharge function is executed, otherwise, data collection and processing and billing are continued. The process is executed in a loop until the user logs out; The multiple energy types include at least two of water, electricity, gas and steam; The account opening module sets an identity identifier corresponding to the energy meter, one user login account corresponds to several identity identifiers, and sets a corresponding payment account according to the identity identifier, including one identity identifier corresponding to one payment account or several identity identifiers corresponding to one payment account; each of the identity identifiers also corresponds to at least one billing scheme; The recharge module decides whether to issue a closing command to the energy supply that has been disconnected according to the sum of the payment account balance, the recharge amount and the credit amount; The data collection process includes: S31, meter reading, data collection; S32, data time comparison, compare the timestamp with the meter reading data cached last time, if it has not expired, continue to the next step after caching, if it has expired, turn to abnormal meter reading alarm and end the program; S33, data value comparison, i.e., check the rationality of the latest metering data value. If the latest metering data is greater than the most recent cached data, the billing process of the billing module will continue to be executed; otherwise, the abnormal meter reading alarm will be entered and the program will be terminated; The billing mode of the billing module includes one of an account direct transfer mode, a prepaid mode or a guaranteed supply mode, and the billing process includes the steps of locking the energy meter to be billed before billing starts and unlocking the energy meter to be billed after billing is completed.

2. According to claim 1, a multi-energy type billing management system based on a smart energy meter is characterized in that: The billing scheme includes any item among a single unit price, a multi-rate unit price, and a tiered unit price.

3. According to claim 1, a multi-energy type billing management system based on a smart energy meter is characterized in that: The energy meter locking includes locking the payment or recharge operation corresponding to the energy meter to be billed.

4. According to claim 1, a multi-energy type billing management system based on a smart energy meter is characterized in that: The billing mode also includes a combined metering mode: if there are two or more similar energy meters with combined metering, the system will deduct the corresponding fees from the total balance of the combined metering; if the balance is lower than the set credit amount, the system will perform a disconnection operation on all the combined metering meters; the combined metering includes several energy meters sharing the same account and / or several energy meters sharing the account balance.

5. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The prepayment model also includes limit credit management: when the user's energy usage fee exceeds his account balance, the system allows the user to continue to use energy within a certain limit.

6. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The billing model also includes a public area apportionment billing model: in the case where public area energy costs need to be shared, the system supports customers to apportion the public area energy costs to end users according to proportion and area, so as to realize public area energy consumption charges.

7. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The billing model also includes other fee management models: to meet the user's various charging scenarios including property fees and parking fees, the system supports users to set up a one-time payment bill, and also supports users to generate payment bills on a monthly or annual basis.

8. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The account opening process of the account opening module user includes: S11. Enter basic user information; S12. Input or select the energy meter to be bound, and set the identity and payment account; S13. Set the billing scheme for the corresponding energy meter, including single unit price, multi-rate unit price, and tiered unit price; S14, setting the balance alarm threshold of the corresponding energy meter; S15, the amount of credit corresponding to the energy meter; S16. Check whether to enable the prepaid mode and / or the guaranteed supply mode; S17, if you need to continue adding new energy meters, go to step S12 and execute it in a loop, otherwise go to the next step; S18. Check the energy meters for combined measurement, where the combined measurement includes energy meters of the same type or different types, and also includes some energy meters or all energy meters.

9. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The recharge module recharge process includes: S21, locking the energy meter to be billed; S22, obtaining the account balance or prepaid balance of the energy meter to be billed; S23, calculate the new balance according to the recharge amount, the original balance, and the prepaid fee and update the database; when the balance is greater than or equal to zero and the corresponding energy meter is in the off state, go to step S25; when the balance is greater than or equal to zero but the corresponding energy meter is in the on state, go to step S26; if the balance is less than zero and the prepaid service is not turned on, go to step S26 after the insufficient recharge alarm; if the balance is less than zero and the prepaid service is turned on, go to the next step; S24, for the prepaid mode, calculate the sum of the new balance and the allowed credit amount, if it is greater than or equal to zero, proceed to the next step; if it is less than zero, proceed to step S26; S25, issuing a closing command for the corresponding energy meter, including closing commands for multiple energy meters; S26. Unlock the energy meter to be billed.

10. The multi-energy type billing management system based on smart energy meter according to claim 1 is characterized in that: The billing process of the billing module includes: S41, the energy meter to be billed is locked; S42, billing deduction and calculation of balance update database, calculate the fee to be deducted for this meter reading according to the set billing plan and the difference between meter reading, and deduct from the corresponding payment account or prepaid payment, calculate and update the balance or arrears information and save it in the database, and generate a deduction record for future tracing; S43, combined metering analysis: if the user has enabled combined metering, the sum of the corresponding payment account balances of all energy meters for combined metering under the user's name is calculated, i.e., the combined balance, and the balance or arrears information is updated again; if not enabled, proceed directly to the next step; S44, balance alarm judgment, judging whether the combined balance or the single table balance meets the alarm condition, if it does, an alarm is given, if not, the process proceeds to step S47; S45, prepayment analysis: if the user has enabled the prepayment mode, the sum of the combined balance, prepayment fees, and credit amount is calculated. If the sum is greater than or equal to 0, the process proceeds to step S47; otherwise, the process proceeds to the next step. If the prepayment mode is not enabled, the process proceeds directly to the next step. S46, analysis of the supply guarantee mode. If the user has enabled the supply guarantee mode, the supply is guaranteed and an overdue payment alarm is issued to proceed to the next step. If the supply guarantee mode is not enabled, a trip command is issued to the corresponding energy meter and then proceed to the next step. S47, the program ends after unlocking the energy meter to be billed.

Images