Power management control system and control method

Abstract

Disclosed in the invention are a power management control system and control method. The system comprises a smart power module and an input / display module. The smart power module comprises a circuit protection element and a control element, wherein the circuit protection element is used for overload or short-circuit protection; and the control element is used for: setting power supply parameters of the smart power module; monitoring the on-off state of the smart power module and performing fault determination; monitoring the power supply parameters, and performing graded early-warning or power cut-off on the basis of a comparison result between real-time power supply parameters and the set power supply parameters; and sending an alarm signal and fault information. The input / display module is used for inputting preset values of the power supply parameters into the smart power module, and displaying the alarm signal and the fault information from the smart power module. By means of the present invention, intelligent management of a power module is realized, the power module can be monitored in real time and a power source can be automatically cut off, faults can be handled in a timely manner, information interaction can be performed with other devices, and remote monitoring and management can be realized.

Description

Power management control system and control method TECHNICAL FIELD

[0001] The present application relates to a power management control system and control method, belonging to the technical field of engineering machinery. BACKGROUND

[0002] Power management technology is a technology that optimizes power design, improves power efficiency, reduces power consumption, and improves system stability and reliability by integrating MOS tubes. Intelligent power module is an important part of power management technology, which can provide stable power supply and has overvoltage, overcurrent, and overtemperature protection functions. Power monitoring technology is to monitor the working state of the power supply in real time, and timely discover and handle power supply faults to ensure the safe operation of the power supply system.

[0003] Although the existing power management and monitoring technology has made some progress, there are still some problems and deficiencies. First, the existing power module mostly uses fixed output voltage and current, which cannot be flexibly configured according to actual needs. Second, although the existing power monitoring technology can monitor the working state of the power supply in real time, the detection capability for short circuit, open circuit and other faults is limited, and often cannot timely discover and handle the faults in the early stage. In addition, the existing power module and monitoring system mostly lack effective communication interface, which cannot interact with other devices, limiting its application range and use convenience. SUMMARY

[0004] The purpose of the present application is to overcome the deficiencies in the prior art, provide a power management control system and control method, which can monitor the power module in real time and automatically cut off the power supply, handle the faults in time, interact with other devices, and realize remote monitoring and management.

[0005] To achieve the above purpose, the present application adopts the following technical scheme:

[0006] In a first aspect, the present application provides a power management control system, comprising an intelligent power module and an input / display module,

[0007] The intelligent power module comprises a circuit protection element and a control element; the circuit protection element is used for overload or short circuit protection; the control element is used for: setting the power parameters of the intelligent power module; monitoring the on-off state of the intelligent power module and making fault judgment; monitoring the power parameters, and making graded early warning or cutting off the power supply according to the comparison result of the real-time power parameters and the set power parameters; sending alarm signals and fault information;

[0008] The input / display module is used for inputting the preset value of the power parameters into the intelligent power module, and displaying the alarm signals and fault information of the intelligent power module.

[0009] Further, the circuit protection element is a smart fuse with self-recovery function and capable of recording the number and time of on-off; when overload or short circuit occurs, the smart fuse will automatically cut off the power supply and automatically restore the power supply after troubleshooting; at the same time, the smart fuse can record the number and time of overload or short circuit. The channel where the smart fuse is located can be set to closed or open state, and can be set to closed when not in use, and not to output voltage and current, and can be set to open when in use.

[0010] Further, the control element comprises:

[0011] The power parameter setting unit is configured to set the power parameters of the smart power module according to the preset values of the input power parameters.

[0012] The signal monitoring unit is configured to monitor the on-off frequency signal of the smart power module.

[0013] The data processing and fault judgment unit is configured to perform data processing and fault judgment according to the monitored on-off frequency signal.

[0014] The overload detection unit is configured to monitor whether the power load exceeds the set value, and perform graded early warning or cut off the power supply.

[0015] The alarm unit is configured to send early warning / alarm signal and provide fault information.

[0016] Further, the control element further comprises a wake-up unit configured to wake up the smart power module through CAN bus, power-on or switch signal.

[0017] Further, the control element further comprises a delay power-off unit configured to turn on or off the delay power-off of the smart power module and set the delay power-off time.

[0018] Further, the control system further comprises a communication interface in the form of a bus, configured to realize information interaction between the smart power module and the input / display module and support firmware upgrade function.

[0019] Further, the input / display module comprises an electronic monitor, a vehicle terminal and an Internet of Things platform; the electronic monitor, the vehicle terminal and the Internet of Things platform can receive and display the fault alarm signal and fault information transmitted by the smart power module through the bus, and input the set power parameters, so as to realize real-time monitoring and management through multiple channels.

[0020] In a second aspect, the application provides a control method of the power management control system of the first aspect, comprising:

[0021] Monitoring the on-off state and power parameters of the intelligent power module,

[0022] In response to detecting an on-off abnormal situation, an alarm signal is sent and fault information is provided;

[0023] In response to the power load exceeding the first set value of the power parameter but not short-circuiting, a pre-warning is performed;

[0024] In response to the power load exceeding the second set value of the power parameter but not short-circuiting, an alarm is sent and the power is cut off.

[0025] Further, the response to detecting an on-off abnormal situation, sending an alarm signal and providing fault information includes:

[0026] Within a set time, the on-off frequency signal of the intelligent power module port is monitored; the on-off frequency signal includes the open circuit state and times, and the short circuit state and times;

[0027] According to the on-off frequency within the set time, the port fault state is identified and data processing is performed;

[0028] According to the result of data processing, the whole machine fault is identified;

[0029] An alarm signal is sent and fault information is provided.

[0030] Further, the control method further includes:

[0031] The on-off frequency data of the intelligent power module port within a set time is recorded;

[0032] The on-off frequency data within the set time is sent to the input / display module, and the data is cleared after the sending is completed;

[0033] When the power is interrupted and the data is not sent, the data is retained so as to continue recording after power-on again.

[0034] Further, the control method further includes waking up the intelligent power module, and the way of waking up the power module includes:

[0035] Waking up through the CAN bus;

[0036] After turning on the total power switch, the intelligent power module is powered on to wake up;

[0037] When the total power switch is not turned off, the intelligent power module is put into hibernation, and the wake-up is performed through the switch signal.

[0038] Further, the control method further includes:

[0039] Setting the opening or closing of the intelligent power module delay power-off;

[0040] In response to the delay power-off being turned on, the delay power-off time is set.

[0041] Compared with the prior art, the present application has the following beneficial effects:

[0042] The power management control system integrates circuit protection elements and control elements in the intelligent power module, effectively preventing problems such as power overload or short circuit, realizing intelligent management of the power module, and being able to monitor the working state of the power module in real time, realize early detection of faults such as short circuit, open circuit, and long-time overload, discover and handle power faults in time, and improve the safety and reliability of the power system.

[0043] The present application can interact with other devices through a standardized communication interface, realize remote monitoring and management, and can also be used for firmware upgrade to improve the performance and function of the intelligent power module and the power management control system.

[0044] The power management control method of the present application monitors the on-off state and power parameters of the intelligent power module in real time, and performs hierarchical early warning or power cut-off operation according to the actual situation, thereby improving the safety and reliability of the power system.

[0045] The power management control method of the present application monitors the port state in real time and identifies faults according to the port state, can discover and handle power faults in time, and improves the safety and reliability of the power system. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a structural schematic diagram of a power management control system according to an embodiment of the present application;

[0047] Figure 2 is a flowchart of a power management control method according to an embodiment of the present application;

[0048] Figure 3 is a flowchart of a power management control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments and the embodiments can be combined with each other.

[0050] The term "and / or", used herein merely describes association relationship of associated objects, which means that there can exist three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally means that the associated objects before and after the " / " have an "or" relationship.

[0051] Embodiment 1

[0052] The embodiment provides a power management control system, as shown in FIG. 1, which comprises a smart power module, an electronic monitor, a vehicle terminal and an Internet of Things platform; the electronic monitor, the vehicle terminal and the Internet of Things platform are used to input the preset value of the power parameter and the state setting instruction of the smart power module, and receive and display the alarm signal and the fault information of the smart power module.

[0053] In the embodiment, the smart power module is provided with a communication interface with the electronic monitor, the vehicle terminal and the Internet of Things platform, the communication interface adopts a bus form, can interact with other devices, realizes remote monitoring and management. At the same time, the communication interface can also be used for firmware upgrade, so as to improve the performance and function of the power module and the power management control system. In this way, real-time monitoring and management of the power supply can be realized, and the safety and reliability of the power supply can be improved.

[0054] The smart power module in the embodiment is provided with a circuit protection element and a control element; the circuit protection element is used for overload or short circuit protection; the control element comprises a power parameter setting unit for setting the power parameter of the smart power module according to the input preset value of the power parameter, a signal monitoring unit for monitoring the on-off frequency signal of the smart power module, a data processing and fault judgment unit for data processing and fault judgment according to the monitored on-off frequency signal, an overload detection unit for monitoring whether the power load exceeds the set value and performing graded early warning or cutting off the power supply, and an alarm unit for sending early warning / alarm signal and providing fault information.

[0055] Specifically, in the embodiment, the circuit protection element is a smart fuse, the smart fuse adopts a self-recovery fuse, when overload or short circuit occurs, the smart fuse will automatically cut off the power supply, and automatically restore the power supply after the fault is eliminated; at the same time, the smart fuse can record the number and time of overload or short circuit. The circuit of the smart fuse, i.e. the smart fuse channel, can be set to closed and open states, which can be set to closed when not in use, and not to output voltage and current, and set to open when in use. The setting state is operated by the electronic monitor or other handheld tools, remote tools, and the setting record state is recorded.

[0056] In the embodiment, the power parameter setting unit adopts a high-efficiency switching power chip, and the output current can be set by the electronic monitor.

[0057] In the embodiment, the control element further comprises a wake-up unit for waking up the intelligent power module, which can be woken up through the CAN bus after the controller, the vehicle-mounted terminal, the engine ECM and other CAN buses are activated; the intelligent power module is woken up after being powered on when the main power switch is turned on; the intelligent power module is woken up through the switch signal after being in hibernation when the main power switch is not turned off. The module is initialized after being woken up.

[0058] In the embodiment, the control element further comprises a delay power-off unit for setting the delay power-off on or off state of the intelligent power module, which can be set to off when not in use, and no voltage and current output, and set to on when in use. When the delay power-off is set to on, the delay power-off time can be set. The setting state is recorded after being set by the electronic monitor or other handheld tools or remote tools.

[0059] Embodiment 2

[0060] FIG. 2 is a flowchart of a power management control method according to the embodiment, which only shows the logical order of the method according to the embodiment, and the steps shown or described can be completed in a different order from that shown in FIG. 2 in other possible embodiments of the application without conflict.

[0061] The power management control method according to the embodiment is implemented by using the power management control system according to Embodiment 1, and the method according to the embodiment specifically comprises the following steps, as shown in FIG. 2:

[0062] Waking up the intelligent power module;

[0063] Initializing the intelligent power module;

[0064] Turning on the intelligent fuse channel in the intelligent power module;

[0065] Setting the on or off of the delay power-off of the intelligent power module;

[0066] Setting the current parameter of the intelligent power module;

[0067] Monitoring the on-off state and current parameter of the intelligent power module;

[0068] In response to detecting an abnormal on-off condition, issuing an alarm signal and providing fault information;

[0069] In response to the power load exceeding the first set value of the power parameter but not being short-circuited, issuing a pre-warning;

[0070] In response to the power load exceeding the second set value of the power parameter but not short-circuiting, an alarm is given and the power supply is cut off.

[0071] The alarm signal and the fault information are sent in response to detection of the on-off abnormal condition, and the on-off abnormal condition includes:

[0072] The on-off frequency signal of the port of the intelligent power module is monitored within a set time, and the on-off frequency signal includes the open circuit state and the number of times, the short circuit state and the number of times;

[0073] The port fault state is identified according to the on-off frequency within the set time, and data processing is performed;

[0074] The machine fault is identified according to the result of the data processing;

[0075] The alarm signal is sent and the fault information is provided.

[0076] The control method further includes data sending and data storage of the on-off abnormal condition, as shown in FIG. 3, which includes:

[0077] The on-off frequency data of the port of the intelligent power module within a set time is recorded;

[0078] The on-off frequency data within the set time is sent to the input / display module, and the data is cleared after the sending is completed;

[0079] When the power is interrupted and the data is not sent, the data is retained to continue recording after power-on again.

[0080] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] The present application is described with reference to flowcharts and / or block diagrams according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices produce the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0082] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart or flowsheets and / or block or blocks of the block diagrams.

[0083] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart or flowsheets and / or block or blocks of the block diagrams.

[0084] The above description is only preferred embodiments of the present application, it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can also be made, these improvements and modifications should also be considered as the protection scope of the present application.

Claims

A power management and control system, characterized in that, Includes intelligent power module and input / display module, The intelligent power module includes circuit protection elements and control elements; the circuit protection elements are used for overload or short circuit protection; the control elements are used for: setting the power parameters of the intelligent power module; monitoring the on / off status of the intelligent power module and performing fault judgment; monitoring the power parameters and performing graded early warning or power cut-off based on the comparison results of real-time power parameters and set power parameters; and sending alarm signals and fault information. The input / display module is used to input preset values ​​of power parameters into the intelligent power module and display the alarm signals and fault information of the intelligent power module. The power management and control system according to claim 1 is characterized in that, The circuit protection element is a smart fuse with self-recovery function and the ability to record the number of times the circuit is switched on and off and the time. The power management and control system according to claim 1 is characterized in that, The control element includes: The power parameter setting unit is used to set the power parameters of the intelligent power module according to the preset values ​​of the input power parameters. The signal monitoring unit is used to monitor the on / off frequency signal of the intelligent power module; The data processing and fault diagnosis unit is used to process data and diagnose faults based on the monitored on / off frequency signals. The overload detection unit is used to monitor whether the power load exceeds the set value and to provide graded warnings or cut off the power supply. The alarm unit is used to send early warning / alarm signals and provide fault information. The power management and control system according to claim 1 is characterized in that, The control element also includes a wake-up unit for waking up the intelligent power module via CAN bus, power-on, or switch signal. The power management and control system according to claim 1 is characterized in that, The control element also includes a delayed power-off unit, used to enable or disable the delayed power-off of the intelligent power module, and to set the delayed power-off time. The power management and control system according to claim 1 is characterized in that, The control system also includes a communication interface for information exchange between the intelligent power module and the input / display module, and supports firmware upgrade functionality. The power management and control system according to claim 1 is characterized in that, The input / display module includes an electronic monitor, and / or an in-vehicle terminal, and / or an Internet of Things (IoT) platform. A control method for a power management control system according to any one of claims 1 to 7, characterized in that, include: Monitor the on / off status and power parameters of the intelligent power module; In response to the detection of an abnormal connection or disconnection, an alarm signal is sent and fault information is provided; A warning is issued in response to a power load exceeding the first set value of the power parameters but without a short circuit. If the power load exceeds the second set value of the power parameters but there is no short circuit, an alarm will be triggered and the power will be cut off. The control method of the power management control system according to claim 8 is characterized in that, The response to detecting an abnormal connection or disconnection condition includes issuing an alarm signal and providing fault information, including: Within a set time period, monitor the on / off frequency signal of the intelligent power module port; the on / off frequency signal includes the open circuit state and number of times, and the short circuit state and number of times. The port fault status is identified and the data is processed based on the on / off frequency within a set time period. Identify system malfunctions based on the results of data processing; Send alarm signals and provide fault information. The control method of the power management control system according to claim 9 is characterized in that, The control method further includes: Record the on / off frequency data of the intelligent power module port within a set time period; Send the on / off frequency data within a set time period to the input / display module, and clear the data after the sending is completed; Data is retained during power outages and when no data is transmitted, so that recording can resume once power is restored. The power management control method according to claim 8 is characterized in that, The control method further includes waking up the intelligent power module, and the methods for waking up the power module include: Wake up via CAN bus; After the main power switch is turned on, the intelligent power module is powered on and woken up; When the main power switch is not turned off, the intelligent power module will wake up from sleep mode via a switch signal. The power management control method according to claim 8 is characterized in that, The control method further includes: Configure the smart power module's delayed power-off setting to be enabled or disabled; In response to the delayed power-off activation, the delayed power-off time can be set.

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