Load power-off management system and method based on battery capacity check and detection

Abstract

The invention relates to the technical field of load power-off management, and discloses a load power-off management system and method based on battery capacity check and detection, and the management system comprises a power supply and a plurality of loads; the load power-off management system further comprises a charging and discharging module, a charging and discharging module monitoring unit, a load basic information unit, a plurality of load monitoring units and an analysis module. After the power supply is cut off, the charging and discharging module provides electric energy for each load; the charging and discharging module monitoring unit monitors the charging and discharging module and obtains and stores monitoring data of the charging and discharging module; monitoring corresponding loads through a plurality of load monitoring units, and obtaining and storing state information data of the loads; the monitoring data, the load priorities, the preset stop time and the state information data are analyzed through an analysis module, and whether the loads with the priorities are powered off or not is judged; it is ensured that the load with the preceding priority can continue to work until the preset stop time, and accurate power-off of the load is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of load power-off management, and in particular to a load power-off management system and method based on battery capacity verification and detection. Background Art

[0002] In recent years, with the rapid development and widespread application of industrial automation technology, the automation level of my country's factories has been continuously improved; more and more factories have introduced different automation equipment and systems to improve production efficiency and product quality.

[0003] Automation equipment in a factory usually requires power supply. A large factory consumes a lot of electricity every day to maintain production. However, when the power supply fails or cannot provide electricity, a backup power supply is needed to power the factory to maintain production.

[0004] However, the backup power source is usually a battery, which has limited power and cannot be provided to all equipment for a long time. Therefore, managers usually only provide battery power to a few important production equipment. However, the specific working time that the battery power can provide to these important production equipment is difficult to calculate, and there is no guarantee that the important production equipment can continue to work until the specified time. Summary of the invention

[0005] The purpose of the present invention is to provide a load power management system and method based on battery capacity verification detection to solve the following technical problems:

[0006] After a power outage, how to ensure that important production equipment can work until the specified time.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A load power-off management system based on battery capacity verification detection includes a power supply and a plurality of loads connected in series with the power supply; the plurality of loads are connected in parallel, and the load power-off management system further includes:

[0009] The charging and discharging module is connected to the power supply and each load, and is used to provide electric energy to each load after the power supply is cut off;

[0010] A charge and discharge module monitoring unit is connected to the charge and discharge module and is used to monitor the charge and discharge module and obtain and save monitoring data of the charge and discharge module;

[0011] A load basic information unit, used to set load basic information, wherein the load basic information includes a load priority and a preset stop time; the load priority is denoted by n;

[0012] A plurality of load monitoring units, corresponding to the loads one by one, connected to the corresponding loads, used to monitor the corresponding loads, and obtain and save the status information data of the loads;

[0013] The analysis module is connected to the charge and discharge module monitoring unit and the load monitoring unit, and is used to analyze the monitoring data, load priority, preset stop time and status information data, and determine whether each priority load is powered off according to the analysis result.

[0014] As a further solution of the present invention: the monitoring data of the charging and discharging module includes the real-time capacity and real-time voltage of the charging and discharging module; the status information data of the load includes the real-time power consumption of the load.

[0015] As a further solution of the present invention: the working process of the analysis module is:

[0016] S10: Analyzing the real-time capacity and real-time voltage of the charging and discharging module obtained by the charging and discharging module monitoring unit to obtain a curve of the real-time power of the charging and discharging module changing with time;

[0017] S20: Obtaining a curve of the real-time power consumption of each load over time through a load monitoring unit;

[0018] S30: After power is turned off, starting from the load with priority n=1, the real-time power change curve of the charging and discharging module and the real-time power consumption change curve of each load are analyzed with preset rules to obtain the working time of the load with priority n+1;

[0019] S40: Analyze the working time of the load with priority n+1 again, and determine whether to power off the load with priority n+1 according to the analysis result. If it is determined that the load with priority n+1 is not powered off, set n=n+1 and return to step S3; otherwise, power off all loads with priority n or later.

[0020] As a further solution of the present invention: the preset rule includes the formula:

[0021]

[0022] Calculate the working time H of the load with priority n+1 n+1 ;

[0023] Among them, Q X The real-time power of the charging and discharging module; Q S is the actual power loss per unit time; T r The duration from the current moment to the preset stop time of the load; Q n is the actual power consumption per unit time of the load with priority n; Q n+1is the actual power consumption per unit time of the load with priority n+1; T P It is the preset discharge protection capacity.

[0024] As a further solution of the present invention: the analysis process for determining whether the load with priority n+1 is powered off is as follows:

[0025] When H n+1 >T r When the load with priority n+1 is turned off, the load with priority n+1 is not turned off; the next priority load is judged whether to turn off the power;

[0026] When 0 <H n+1 ≤T r When the priority is n+1, the load will not be powered off; all loads after the priority n+1 will be powered off;

[0027] When H n+1 When ≤0, all loads with priority n or later are powered off.

[0028] As a further solution of the present invention: the actual power loss per unit time Q S for:

[0029]

[0030] Among them, t n is the current time; t0 is the time when the charging and discharging module starts discharging; ΔT is the preset time period; Q X (t n ) is the current power of the charging and discharging module; Q X (t n -ΔT) is the amount of electricity in the charge and discharge module ΔT before the current moment; C n (t) is the curve of real-time power consumption of load with priority n changing with time; Q0 is the actual power loss per preset unit time; N is the total number of loads.

[0031] As a further solution of the present invention: the actual power consumption Q per unit time of the load with priority n n To pass the formula get.

[0032] A load power-off management method based on battery capacity verification detection, the management method comprising the following steps:

[0033] S1: monitoring the charging and discharging module through the charging and discharging module monitoring unit, obtaining and saving the monitoring data of the charging and discharging module;

[0034] S2: Monitor the corresponding load through multiple load monitoring units, and obtain and save the status information data of the load;

[0035] S3: The monitoring data, load priority, preset stop time and status information data are analyzed by the analysis module, and whether the loads of each priority level are powered off is determined according to the analysis results.

[0036] Beneficial effects of the present invention:

[0037] (1) The present invention provides power to multiple loads through a power supply, and the power supply also charges the charging and discharging module. After the power supply is cut off, the charging and discharging module provides electric energy to each load; the charging and discharging module monitoring unit monitors the charging and discharging module, obtains and saves the monitoring data of the charging and discharging module; the corresponding loads are monitored by multiple load monitoring units, and the state information data of the loads are obtained and saved; the monitoring data, load priority, preset stop time and state information data are analyzed by the analysis module, and it is determined whether each priority load is powered off according to the analysis result; it is achieved to ensure that the priority is first, and the more important load can continue to work until the preset stop time, so as to realize the accurate power off of the load.

[0038] (2) The present invention calculates the working time of the load with priority n+1 by using the second residual power and the actual power consumption of the load with priority n+1 per unit time; this allows the charge-discharge module to ensure that as many loads as possible work while also ensuring that the power of the charge-discharge module is not completely discharged, thereby avoiding over-discharge of the charge-discharge module and accelerating the aging speed of the charge-discharge module. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] Figure 1 A system module framework diagram of an embodiment of the present invention;

[0041] Figure 2 A method flow chart of an embodiment of the present invention;

[0042] Figure 3 It is a circuit diagram of the connection between the load and the charge and discharge module in the present invention. DETAILED DESCRIPTION

[0043] 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.

[0044] See also Figure 1 and Figure 3As shown, in one embodiment, a load power-off management system based on battery capacity verification detection is provided, the load power-off management system comprising a power supply and a plurality of loads connected in series with the power supply; the plurality of loads are connected in parallel;

[0045] The load power-off management system further includes:

[0046] The charging and discharging module is connected to the power supply and each load, and is used to provide electric energy to each load after the power supply is cut off;

[0047] A charge and discharge module monitoring unit is connected to the charge and discharge module and is used to monitor the charge and discharge module and obtain and save monitoring data of the charge and discharge module;

[0048] A load basic information unit, used to set load basic information, wherein the load basic information includes a load priority and a preset stop time; the load priority is denoted by n;

[0049] A plurality of load monitoring units, corresponding to the loads one by one, connected to the corresponding loads, used to monitor the corresponding loads, and obtain and save the status information data of the loads;

[0050] An analysis module is connected to the charge and discharge module monitoring unit and the load monitoring unit, and is used to analyze the monitoring data, load priority, preset stop time and status information data, and determine whether to power off the loads of each priority level according to the analysis results;

[0051] Through the above technical solution, this embodiment provides power to multiple loads through a power supply, and the power supply also charges the charging and discharging module. After the power supply is cut off, the charging and discharging module provides electrical energy to each load; the charging and discharging module monitoring unit monitors the charging and discharging module, obtains and saves the monitoring data of the charging and discharging module; monitors the corresponding load through multiple load monitoring units, obtains and saves the status information data of the load; analyzes the monitoring data, load priority, preset stop time and status information data through the analysis module, and determines whether each priority load is powered off according to the analysis result; ensures that the priority is first, and the more important load can continue to work until the preset stop time, so as to realize accurate power off of the load.

[0052] As an embodiment of the present invention,

[0053] The monitoring data of the charging and discharging module includes the real-time capacity and real-time voltage of the charging and discharging module;

[0054] The state information data of the load includes the real-time power consumption of the load;

[0055] Through the above technical solution, this embodiment measures the real-time capacity and real-time voltage of the charging and discharging module through the comprehensive battery tester set in the charging and discharging module, and then obtains the real-time power of the charging and discharging module through the real-time capacity and real-time voltage; obtains the power consumption of the load through the electric meter; the units of the real-time power and the power consumption are consistent;

[0056] It should be noted that obtaining the real-time power of the charging and discharging module through the real-time capacity and real-time voltage of the charging and discharging module is an existing technology and will not be described in detail here.

[0057] As an implementation mode of the present invention, the working process of the analysis module is as follows:

[0058] S10: Analyzing the real-time capacity and real-time voltage of the charging and discharging module obtained by the charging and discharging module monitoring unit to obtain a curve of the real-time power of the charging and discharging module changing with time;

[0059] S20: Obtaining a curve of the real-time power consumption of each load over time through a load monitoring unit;

[0060] S30: After power is turned off, starting from the load with priority n=1, the real-time power change curve of the charging and discharging module and the real-time power consumption change curve of each load are analyzed with preset rules to obtain the working time of the load with priority n+1;

[0061] S40: Analyze the working time of the load with priority n+1 again, and determine whether the load with priority n+1 is powered off according to the analysis result. If it is determined that the load with priority n+1 is not powered off, set n=n+1 and return to step S3; otherwise, power off all loads with priority n or later.

[0062] Through the above technical scheme, this embodiment first analyzes the real-time capacity and real-time voltage of the charging and discharging module obtained by the charging and discharging module monitoring unit to obtain the real-time power change curve of the charging and discharging module over time; then obtains the real-time power consumption change curve of each load over time through the load monitoring unit; after power off, starting from the load with priority n=1, the real-time power change curve of the charging and discharging module over time and the real-time power consumption change curve of each load over time are analyzed according to preset rules to obtain the working time of the load with priority n+1; then the working time of the load with priority n+1 is analyzed, and it is determined whether the load with priority n+1 is powered off according to the analysis result. If it is determined that the load with priority n+1 is not powered off, n=n+1 is set, and the process returns to step S3; otherwise, all loads after priority n are powered off; it is ensured that the loads with priority first and more important loads can continue to work until the preset stop time, so as to achieve accurate power off of the loads;

[0063] As an implementation mode of the present invention, the preset rule includes the formula:

[0064]

[0065] Calculate the working time H of the load with priority n+1 n+1 ;

[0066] Among them, Q X The real-time power of the charging and discharging module; Q S is the actual power loss per unit time; T r The duration from the current moment to the preset stop time of the load; Q n is the actual power consumption per unit time of the load with priority n; Q n+1 is the actual power consumption per unit time of the load with priority n+1; T P It is the preset discharge protection power;

[0067] Through the above technical solution, this embodiment Q S *T r The estimated power loss from the current moment to the preset stop time of the load; is the estimated cumulative power consumption of the loads with the first n priorities; The first remaining power is the real-time power of the charging and discharging module minus the estimated power loss from the current moment to the preset stop time of the load and the estimated cumulative power consumption of the first n priority loads; The second remaining power is the estimated remaining power minus the preset discharge protection power; the working time of the load with priority n+1 is calculated by the second remaining power and the actual power consumption per unit time of the load with priority n+1; the charge-discharge module can ensure that as many loads as possible work, while also ensuring that the power of the charge-discharge module will not be completely discharged, thereby avoiding over-discharge of the charge-discharge module and accelerating the aging speed of the charge-discharge module;

[0068] It should be noted that the preset stop time and the preset discharge protection power T P is a preset value obtained based on experience; the calculation method of the duration from the current moment to the preset stop time of the load is a prior art and will not be described in detail here.

[0069] As an implementation mode of the present invention, the analysis process for determining whether a load with a priority of n+1 is powered off is as follows:

[0070] When H n+1 >T r When the load with priority n+1 is turned off, the load with priority n+1 is not turned off; the next priority load is judged whether to turn off the power;

[0071] When 0 <H n+1 ≤Tr When the priority is n+1, the load will not be powered off; all loads after the priority n+1 will be powered off;

[0072] When H n+1 When ≤0, all loads with priority n and below are powered off;

[0073] Through the above technical solution, when H n+1 >T r When , it means that the working time of the load with priority n+1 exceeds the time from the current moment to the preset stop time of the load, so the load with priority n+1 is charged and does not shut down, and continues to work T r time; assign the value of n+1 to n, and then Determine whether the load of the next priority is powered off; when 0 <H n+1 ≤T r When , it means that the working time of the load with priority n+1 is within the time from the current moment to the preset stop time of the load, so the power can only provide the load with priority n+1 to continue working, and the load with priority n+1 will not be powered off and continue to work. n+1 At this time, all loads with priority n+1 and later are powered off; when H n+1 When ≤0, the power is insufficient to support the load with priority n+1 to continue working, so all loads after priority n are powered off;

[0074] As an implementation mode of the present invention, the actual power loss per unit time Q S for: t n -t0>ΔT

[0075] Among them, t n is the current time; t0 is the time when the charging and discharging module starts discharging; ΔT is the preset time period; Q X (t n ) is the current power of the charging and discharging module; Q X (t n -ΔT) is the amount of electricity in the charge and discharge module ΔT before the current moment; C n (t) is the curve of the real-time power consumption of the load with priority n over time; Q0 is the actual power loss per unit time; N is the total number of loads;

[0076] Through the above technical solution, this embodiment t n -t0 is the discharge time of the charge and discharge module; when t n -t0≤ΔT, the discharge time of the charge and discharge module is within the preset time period, Q S =Q0; when t n-t0>ΔT, the discharge time of the charge and discharge module exceeds the preset time period. Q X (t n )-Q X (t n -ΔT) is the difference between the power of the charging and discharging module at the current moment and the power of the charging and discharging module at the moment ΔT before the current moment, which is also the power consumed by the charging and discharging module in the preset time period before the current moment; The actual accumulated power consumption of the load with priority n in the preset time period before the current moment; The actual accumulated power consumption of all loads in the preset time period before the current moment; It is the difference between the power consumed by the charging and discharging module in the preset time period before the current moment and the actual cumulative power consumption of all loads in the preset time period before the current moment, which is also the loss amount of the charging and discharging module in the preset time period before the current moment; is the actual power loss per unit time;

[0077] It should be noted that the preset time period ΔT and the preset actual power loss per unit time Q0 are preset values, which are obtained based on experience and will not be described in detail here.

[0078] As an implementation mode of the present invention, the actual power consumption Q per unit time of the load with priority n is n To pass the formula get;

[0079] Through the above technical solution, this embodiment The actual accumulated power consumption of the load with priority n in the preset time period before the current moment; is the actual power consumption per unit time of the load with priority n.

[0080] See also Figure 2 As shown, a load power-off management method based on battery capacity verification detection comprises the following steps:

[0081] S1: monitoring the charging and discharging module through the charging and discharging module monitoring unit, obtaining and saving the monitoring data of the charging and discharging module;

[0082] S2: Monitor the corresponding load through multiple load monitoring units, and obtain and save the status information data of the load;

[0083] S3: The monitoring data, load priority, preset stop time and status information data are analyzed by the analysis module, and whether the loads of each priority level are powered off is determined according to the analysis results.

[0084] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A load power-off management system based on battery capacity verification and detection, comprising a power supply and a plurality of loads connected in series with the power supply; the plurality of loads are connected in parallel, characterized in that: The load power-off management system further includes: The charging and discharging module is connected to the power supply and each load, and is used to provide electric energy to each load after the power supply is cut off; A charge and discharge module monitoring unit is connected to the charge and discharge module and is used to monitor the charge and discharge module and obtain and save monitoring data of the charge and discharge module; A load basic information unit, used to set load basic information, wherein the load basic information includes a load priority and a preset stop time; the load priority is denoted by n; A plurality of load monitoring units, corresponding to the loads one by one, connected to the corresponding loads, used to monitor the corresponding loads, and obtain and save the status information data of the loads; The analysis module is connected to the charge and discharge module monitoring unit and the load monitoring unit, and is used to analyze the monitoring data, load priority, preset stop time and status information data, and determine whether each priority load is powered off according to the analysis result.

2. A load power management system based on battery capacity verification and detection according to claim 1, characterized in that: The monitoring data of the charging and discharging module includes the real-time capacity and real-time voltage of the charging and discharging module; the status information data of the load includes the real-time power consumption of the load.

3. A load power management system based on battery capacity verification and detection according to claim 2, characterized in that: The working process of the analysis module is as follows: S10: Analyzing the real-time capacity and real-time voltage of the charging and discharging module obtained by the charging and discharging module monitoring unit to obtain a curve of the real-time power of the charging and discharging module changing over time; S20: Obtaining a curve of the real-time power consumption of each load over time through a load monitoring unit; S30: After power is turned off, starting from the load with priority n=1, the real-time power change curve of the charging and discharging module and the real-time power consumption change curve of each load are analyzed with preset rules to obtain the working time of the load with priority n+1; S40: Analyze the working time of the load with priority n+1 again, and determine whether the load with priority n+1 is powered off according to the analysis result. If it is determined that the load with priority n+1 is not powered off, set n=n+1, and return to step S3; Otherwise, all loads with priority n or higher will be powered off.

4. A load power management system based on battery capacity verification and detection according to claim 3, characterized in that: The preset rules include the formula: Calculate the working time H of the load with priority n+1 n+1 ; Among them, Q X The real-time power of the charging and discharging module; Q S is the actual power loss per unit time; T r The duration from the current moment to the preset stop time of the load; Q n is the actual power consumption per unit time of the load with priority n; Q n+1 is the actual power consumption per unit time of the load with priority n+1; T P It is the preset discharge protection capacity.

5. A load power management system based on battery capacity verification and detection according to claim 4, characterized in that: The analysis process for determining whether the load with priority n+1 is powered off is as follows: When H n+1 >T r When the load with priority n+1 is turned off, the load with priority n+1 is not turned off; the next priority load is judged whether to turn off the power; When 0 <H n+1 ≤T r When the load with priority n+1 is turned off, the load with priority n+1 is not turned off; all loads with priority n+1 and later are turned off; When H n+1 When ≤0, all loads with priority n or later are powered off.

6. A load power management system based on battery capacity verification and detection according to claim 5, characterized in that: Actual power loss per unit time Q S for: Among them, t n is the current time; t0 is the time when the charging and discharging module starts discharging; ΔT is the preset time period; Q X (t n ) is the current power of the charging and discharging module; Q X (t n -ΔT) is the amount of electricity in the charge and discharge module ΔT before the current moment; C n (t) is the curve of real-time power consumption of load with priority n changing with time; Q0 is the actual power loss per preset unit time; N is the total number of loads.

7. A load power management system based on battery capacity verification and detection according to claim 6, characterized in that: The actual power consumption per unit time of the load with priority n is Q n To pass the formula get.

8. A load power-off management method based on battery capacity verification and detection, applicable to a load power-off management system based on battery capacity verification and detection as claimed in any one of claims 1 to 7, characterized in that: The management method comprises the following steps: S1: monitoring the charging and discharging module through the charging and discharging module monitoring unit, obtaining and saving the monitoring data of the charging and discharging module; S2: Monitor the corresponding load through multiple load monitoring units, and obtain and save the status information data of the load; S3: Analyze the monitoring data, load priority, preset stop time and status information data through the analysis module, and determine whether the loads of each priority level are powered off based on the analysis results.

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