Special vehicle power supply integrated management system and method and medium

Abstract

The invention discloses a special vehicle power supply integrated management system and method and a medium. The special vehicle power supply integrated management system comprises an AC filter, a DC filter, an AC-DC converter, an intelligent detection management module and a secondary power supply unit. The AC filter is used for transmitting the commercial power to the intelligent detection management module through the AC-DC converter; the direct current filter is used for transmitting the silicon electric energy to the intelligent detection management module through the direct current filter; and the intelligent detection management module is used for determining a current power supply mode according to the input validity signals of the commercial power, the silicon power generation energy and the storage battery pack and the power supply input priority, and monitoring and reporting system operation parameters in real time. According to the technical scheme of the embodiment of the invention, the automation degree of power management of the special vehicle can be improved, and the complexity of fault positioning and maintenance is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of special vehicle power management, and in particular to a special vehicle power integrated management system, method and medium. Background Art

[0002] The multi-input and single-output power supply system of traditional special vehicles generally uses a physical control switch to switch the input source. During the switching period, the continuity of the output power supply is maintained by UPS (Uninterruptible Power System). Faults are difficult to locate and repair. In order to improve the application effect of comprehensive power management of special vehicles, higher requirements are placed on the automation, informatization level of equipment and power supply quality. Summary of the invention

[0003] The present invention provides a special vehicle power integrated management system, method and medium to solve the problems of low automation level of traditional special vehicle power management and complex fault location and maintenance.

[0004] According to one aspect of the present invention, there is provided a special vehicle power integrated management system, comprising:

[0005] AC filter, DC filter, AC-DC converter, intelligent detection management module and secondary power supply unit;

[0006] The DC filter, AC-DC converter and secondary power supply unit are all connected to the intelligent detection management module; the AC filter is connected to the AC-DC converter;

[0007] The AC filter is used to transmit the mains power to the intelligent detection management module through the AC-DC converter;

[0008] A DC filter is used to transmit silicon-generated electricity to the intelligent detection management module through the DC filter;

[0009] Intelligent detection management module, used to determine the current power supply mode according to the input validity signals of the mains, silicon power and battery pack and the power input priority, and to monitor and report the system operation parameters in real time;

[0010] Among them, the priority of power input is that the mains power priority is higher than the silicon power generation energy, and the silicon power generation energy priority is higher than the battery pack.

[0011] According to another aspect of the present invention, a method for comprehensive management of power supply of special vehicles is provided, which is executed by an intelligent detection management module and includes:

[0012] Determine the current power supply mode based on the input validity signals of the mains, silicon power generation and battery pack, as well as the power input priority, and monitor and report the system operating parameters in real time;

[0013] Among them, the priority of power input is that the mains power priority is higher than the silicon power generation energy, and the silicon power generation energy priority is higher than the battery pack.

[0014] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the special vehicle power integrated management method described in any embodiment of the present invention when executed.

[0015] The technical solution of the embodiment of the present invention constitutes a special vehicle power integrated management system through an AC filter, a DC filter, an AC-DC converter, an intelligent detection management module and a secondary power supply unit. The DC filter, the AC-DC converter and the secondary power supply unit are all connected to the intelligent detection management module, and the AC filter is connected to the AC-DC converter. The AC filter transmits the mains power to the intelligent detection management module through the AC-DC converter. The DC filter transmits the silicon-generated energy to the intelligent detection management module through the DC filter. The intelligent detection management module determines the current power supply mode according to the input validity signal of the mains power, the silicon-generated energy and the battery pack and the power input priority, and monitors and reports the system operation parameters in real time. This solution has a multi-input and multi-output working mode, as well as the functions of full-process intelligent management of the power supply link, intelligent charging of the battery pack, and real-time monitoring of the voltage and current of the input and output. In addition, when a power supply failure occurs, the fault can be quickly located based on the current power supply mode, thereby improving maintenance efficiency, solving the problem that the traditional special vehicle power management has a low degree of automation and the fault location and maintenance are relatively complex, and can improve the automation of the power management of special vehicles and reduce the complexity of fault location and maintenance.

[0016] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a special vehicle power integrated management system provided in Embodiment 1 of the present invention;

[0019] Figure 2 A schematic diagram of the circuit connection relationship of a three-input priority power supply control circuit and a two-input priority power supply control circuit provided in Embodiment 2 of the present invention;

[0020] Figure 3 A schematic diagram of data flow of an intelligent monitoring unit provided in Embodiment 2 of the present invention;

[0021] Figure 4 A logic flow chart of input priority judgment and electric energy output provided in Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatus.

[0024] Embodiment 1

[0025] Figure 1 This is a schematic diagram of a special vehicle power integrated management system provided by the first embodiment of the present invention. Figure 1 As shown, the special vehicle power integrated management system includes: an AC filter, a DC filter, an AC-DC converter, an intelligent detection management module and a secondary power supply unit; the DC filter, the AC-DC converter and the secondary power supply unit are all connected to the intelligent detection management module; the AC filter is connected to the AC-DC converter.

[0026] The AC filter can be used to transmit the AC power to the intelligent detection and management module through the AC-DC converter; the DC filter can be used to transmit the silicon-generated energy to the intelligent detection and management module through the DC filter; the intelligent detection and management module can be used to determine the current power supply mode based on the input validity signals of the AC power, silicon-generated energy and battery pack and the power input priority, and monitor and report the system operating parameters in real time.

[0027] Among them, the AC-DC converter is an AC-DC converter. The intelligent detection management module can be a module for comprehensive management of the power supply of special vehicles. The AC filter is used to filter out the harmonics generated by the DC control system and compensate for the reactive power consumed by the DC control system. The DC filter is used to block and short-circuit the AC signal to ensure the purity and stability of the DC signal. The secondary power supply unit is a device that converts the main power supply power into another form or specification of power. Mains refers to industrial frequency AC. Silicon power refers to the power provided by a regular rectifier generator. The input validity signal can be used to characterize the validity of the three types of inputs (mains, silicon power and battery pack) managed by the intelligent detection management module. The power input priority can be used to distinguish the power supply sequence of different types of inputs. The current power supply mode can be the mode in which the special vehicle power integrated management system currently provides power to the outside. The system operation parameters can be the operation parameters of the special vehicle power integrated management system.

[0028] Among them, the priority of power input is that the mains power priority is higher than the silicon power generation energy, and the silicon power generation energy priority is higher than the battery pack.

[0029] In the embodiment of the present invention, an AC filter, a DC filter, an AC-DC converter, an intelligent detection management module and a secondary power supply unit are used to form a special vehicle power integrated management system. The AC filter is connected to the AC-DC converter by wires, and the AC-DC converter is connected to the intelligent detection management module by wires. The intelligent detection management module is also connected to the DC filter, the secondary power supply unit and the battery pack by wires.

[0030] Specifically, the AC filter filters the input mains power and transmits the filtered electric energy to the AC-DC converter, so as to convert the filtered mains power from AC to DC through the AC-DC converter, and transmit the converted electric signal to the intelligent detection management module based on the AC-DC converter. The DC filter filters the input silicon-generated energy and transmits the filtered electric signal to the intelligent detection management module. The intelligent detection management module is also connected to the battery pack wire. The intelligent detection management module controls the three types of input electric energy (mains power, silicon-generated energy and battery pack), that is, for the input effective electric energy, according to the power input priority, the current power supply mode is determined (that is, the current power supply mode with the highest priority is used as the current power supply mode), so as to transmit power based on the current power supply mode, collect system operating parameters in real time, and report the system operating parameters to the host computer in time.

[0031] Exemplarily, the special vehicle power integrated management system has three inputs, namely, mains, silicon power and battery pack. When silicon power or mains is available, the battery charging function is completed using a DC-DC converter. When there are two power sources, mains and silicon power, the mains is used as input and the battery pack is charged in a constant voltage and current limiting manner. The power supply of the intelligent detection management module is provided by the mains, silicon power and battery pack to ensure the uninterrupted operation of the intelligent management unit.

[0032] In an optional embodiment of the present invention, the secondary power supply unit may include a DC-DC converter and a DC-AC inverter power supply.

[0033] Among them, the DC-DC converter is a direct current-to-direct current converter. The DC-AC inverter power supply is used to convert the power of the equipment from 24V DC to 220V AC for use by the vehicle-mounted test equipment, that is, to provide 220V AC power for other test equipment. The DC-AC inverter power supply has a remote control function and can realize multiple protection functions including over-temperature protection, input low voltage protection, input high voltage protection, overload protection, short circuit, etc.

[0034] Exemplarily, the special vehicle power integrated management system may include at least one DC-DC converter, each DC-DC converter being connected to one load to deliver electrical energy to the load.

[0035] The technical solution of the embodiment of the present invention constitutes a special vehicle power integrated management system through an AC filter, a DC filter, an AC-DC converter, an intelligent detection management module and a secondary power supply unit. The DC filter, the AC-DC converter and the secondary power supply unit are all connected to the intelligent detection management module, and the AC filter is connected to the AC-DC converter. The AC filter transmits the mains power to the intelligent detection management module through the AC-DC converter. The DC filter transmits the silicon-generated energy to the intelligent detection management module through the DC filter. The intelligent detection management module determines the current power supply mode according to the input validity signal of the mains power, the silicon-generated energy and the battery pack and the power input priority, and monitors and reports the system operation parameters in real time. This solution has a multi-input and multi-output working mode, as well as the functions of full-process intelligent management of the power supply link, intelligent charging of the battery pack, and real-time monitoring of the voltage and current of the input and output. In addition, when a power supply failure occurs, the fault can be quickly located based on the current power supply mode, thereby improving maintenance efficiency, solving the problem that the traditional special vehicle power management has a low degree of automation and the fault location and maintenance are relatively complex, and can improve the automation of the power management of special vehicles and reduce the complexity of fault location and maintenance.

[0036] Embodiment 2

[0037] This embodiment is specific based on the above embodiment, and refines the composition of the special vehicle power integrated management system. The specific contents are introduced as follows:

[0038] In an optional embodiment of the present invention, the special vehicle power integrated management system may further include a detection and protection unit for collecting test ground electrical signals and vehicle body ground electrical signals, and sending the test ground electrical signals and vehicle body ground electrical signals to the intelligent detection management module.

[0039] The detection protection unit can be used to detect whether there is leakage in the special vehicle. The test ground electrical signal can be an electrical signal of the test ground. The vehicle body ground electrical signal can be an electrical signal of the vehicle body ground.

[0040] In an embodiment of the present invention, the special vehicle power integrated management system may also be equipped with a detection and protection unit, which then detects the test ground electrical signals and the body ground electrical signals of the test ground and the body ground respectively through the detection and protection unit, thereby sending the collected test ground electrical signals and the body ground electrical signals to the host computer through the intelligent detection management module.

[0041] Leakage protection is the focus of personnel safety protection. The special vehicle power integrated management system sets up a detection and protection unit to realize the functions of grounding, leakage voltage and leakage current detection and protection inside the vehicle. It has lightning protection function for the external AC power input, wired interface, serial port and network port, and realizes fault information reporting.

[0042] In an optional embodiment of the present invention, the intelligent detection management module may include: a power priority control management unit, an intelligent monitoring unit and a battery pack charging management unit; the power priority control management unit can be used to determine the current valid input power type based on the AC power, silicon power generation and the input validity signal of the battery pack, and determine the current power supply mode of the battery pack and the current power supply mode of the load based on the power input priority and the current valid input power type.

[0043] Among them, the power priority control management unit may be a control component for the order in which the load input power is supplied. The intelligent monitoring unit may be a real-time monitoring device for each component of the special vehicle power integrated management system. The battery pack charging management unit may be a control component for the order in which the battery input power is supplied. The current valid input power type may be the type of valid input power. Exemplarily, when there is AC input, the AC type input power is valid; when there is silicon power input, the silicon power type input power is valid; when power is input through the battery pack, the battery pack type power is valid. The current power supply mode of the battery pack may be the current power supply mode for the battery pack, that is, the type of power currently supplied to the battery pack. The current power supply mode of the load may be the current power supply mode for the load, that is, the type of power currently supplied to the load.

[0044] In the embodiment of the present invention, the intelligent detection management module can be specifically divided into a power priority control management unit, an intelligent monitoring unit and a battery pack charging management unit. Through the power priority control management unit, it is determined whether the mains power, silicon power generation and battery pack have corresponding input validity signals, and the power transmission type with input validity signals is used as the current valid input power type, so as to determine the current power supply mode of the battery pack and the current power supply mode of the load according to the power input priority and the current valid input power type.

[0045] Optional, power priority control management unit, completes AC input (including EMI filtering), AC-DC conversion (including power factor correction) and output management. EMI filtering can ensure the electromagnetic compatibility requirements of the system; AC-DC converter completes the conversion from AC to DC, and has a power factor correction function to improve the system efficiency when AC input and reduce grid harmonics. Select an AC-DC converter with power factor correction to achieve power factor correction and AC-DC conversion functions, with an output power of 2KW. The same model and power AC-DC converters can also be used in parallel. When the silicon power input is valid, the power priority control management unit completes the silicon input and output management functions, and realizes the reverse connection protection of the silicon input. In the event of over-voltage or under-current, the external output can be cut off. When the battery pack input is valid, the power priority control management unit mainly completes the input and output management functions of the battery pack, realizes the reverse connection protection of the battery pack input, and cuts off the external output in the event of over-voltage or under-voltage. The input priority order of the three power supplies is AC power, silicon power, and battery pack. When both AC and DC power are available, AC input takes priority, that is, mains power takes priority. The battery pack will only output power when both mains power and silicon power generation are invalid. Normally, the battery pack is in charging mode as long as mains power and silicon power generation are available.

[0046] In an optional embodiment of the present invention, the power priority control management unit may also include: a three-input associated MOS tube, a two-input associated MOS tube, a three-input priority power supply control circuit and a two-input priority power supply control circuit; the three-input priority power supply control circuit is connected to the three-input associated MOS tube, and the three-input associated MOS tube is connected to the secondary power supply unit; the two-input priority power supply control circuit is connected to the two-input associated MOS tube, and the two-input associated MOS tube is connected to the battery pack; the three-input priority power supply control circuit is used to determine the current power supply mode of the load; the two-input priority power supply control circuit is used to determine the current power supply mode of the battery pack.

[0047] Among them, the three-input associated MOS tube can be a MOS tube connected in series between the DC-DC converter and the three-input priority power supply control circuit. The two-input associated MOS tube can be a MOS tube connected in series with the two-input priority power supply control circuit. The three-input priority power supply control circuit can be a circuit for determining the power supply sequence of the mains, silicon-generated energy, and battery pack. The two-input priority power supply control circuit can be a circuit for determining the power supply sequence of the mains and silicon-generated energy.

[0048] In an embodiment of the present invention, the input end of the three-input priority power supply control circuit is connected to the AC-DC converter, the DC filter and the battery pack, the output end of the three-input priority power supply control circuit is connected to the input end of the three-input associated MOS tube, and the output end of the three-input associated MOS tube is connected to the secondary power supply unit. The input end of the two-input priority power supply control circuit is connected to the AC-DC converter and the DC filter, the output end of the two-input priority power supply control circuit is connected to the input end of the two-input associated MOS tube, and the output end of the two-input associated MOS tube is connected to the battery pack. The three-input priority power supply control circuit determines the current power supply mode of the load based on the input validity signals of the mains, silicon power generation and the battery pack and the power input priority. The two-input priority power supply control circuit determines the current power supply mode of the battery pack based on the input validity signals of the mains and silicon power generation and the power input priority.

[0049] The three-input priority power supply control circuit can connect one of the three valid power supplies to a common output according to the priority. The priority is determined by the pin assignment. When the input voltage of a certain line is within a window set by undervoltage and overvoltage thresholds for 10 consecutive seconds, the power supply of this line is judged to be valid, that is, the power type of this line is valid. The power path switch corresponding to the input power is implemented by an external back-to-back P-channel PMOS tube. Based on the on-board power supply requirement of 28V, the final maximum total output current is 78A. Three pairs of P-channel PMOS tubes are connected in parallel, and wall-mounted heat dissipation is used to ensure its reliability. Exemplary, the circuit connection relationship of the three-input priority power supply control circuit and the two-input priority power supply control circuit can be referred to. Figure 2 . Figure 2 The working parameters of the DC-DC converter in the example are 28V, 500W. The power of the DC-AC inverter is 200W. V1 is the output voltage corresponding to the mains input, V2 is the output voltage corresponding to the silicon power generation, and V3 is the output voltage corresponding to the battery pack input. The three-input associated MOS tube and the two-input associated MOS tube mentioned above are both MOS tubes, and the different names are only to distinguish the different connection relationships. Figure 2 The connection relationship can be clearly shown in the figure, so no naming distinction is made in the figure.

[0050] The battery pack charging power supply also adopts a two-input priority power supply control circuit with the same principle. It can select the power supply with the highest priority from the two inputs, isolate the reverse and cross-conduction power supplies, and the charging circuit can realize intelligent charging of the battery.

[0051] In an optional embodiment of the present invention, the intelligent monitoring unit can be used to obtain system operating parameters in real time, and upload the system operating parameters to a host computer through a serial port so as to display the data on the host computer.

[0052] In an embodiment of the present invention, the system operating parameters of the special vehicle power integrated management system can be collected in real time, and then uploaded to the host computer based on the serial communication method, and then displayed on the host computer, providing a data basis for equipment abnormality warning.

[0053] For example, the intelligent detection management module can upload the test ground electrical signal and the vehicle body ground electrical signal to the host computer through serial port communication.

[0054] In an optional embodiment of the present invention, the intelligent monitoring unit can also be used to determine the faulty component according to the system operation parameters and block the faulty component; the intelligent monitoring unit can also be used to provide a function setting interface to the user.

[0055] Among them, the faulty component can be a component in the special vehicle power integrated management system that can be shut down when an abnormality occurs. Optionally, the faulty component can include but is not limited to an AC-DC converter, a battery charging and discharging circuit, a silicon generator input, and a DC-DC converter. The function setting interface can be provided to the user and the user can customize the function settings. Exemplarily, based on the function setting interface, AC protection settings, DC protection settings, communication settings, and battery pack power supply management settings can be performed.

[0056] In an embodiment of the present invention, the intelligent monitoring unit can not only collect and monitor the operating parameters of the system in real time, but also analyze the system operating parameters, identify faulty components, and block the faulty components, that is, shut down the faulty components. It can also provide a function setting interface to the user, so that the user can set custom functions.

[0057] Figure 3 This is a data flow diagram of an intelligent monitoring unit provided in Embodiment 2 of the present invention. Figure 3 As shown, the intelligent monitoring unit communicates with the host computer and can also implement AD (analog-to-digital conversion) sampling, operation status collection, and fault blocking of the monitoring components.

[0058] The intelligent monitoring unit monitors the system operating parameters in real time and automatically manages the data to improve the reliability of the entire power supply system. It mainly includes: detection function, setting function, control function, and serial communication interface. Through the detection function, it can monitor the DC voltage (including DC bus voltage and battery pack voltage) and AC voltage of each channel in real time, measure the current of the battery pack, multi-channel switch quantity detection and fault alarm function, etc. Through the setting function, AC protection setting, DC protection setting, communication setting, battery pack power supply management, etc. can be performed. Through the control function, the charging method of the battery pack and the power on and off of the module can be controlled. Upload data to the host computer through the serial port to display the operating status of each link of the power supply system and detailed faults, etc. The staff can intuitively obtain the required information and perform corresponding maintenance on the system.

[0059] In an optional embodiment of the present invention, the battery pack charging management unit can be used to determine the current temperature coefficient of the battery according to the battery environment temperature, voltage and current of the battery pack, and adjust the input power of the battery according to the current temperature coefficient of the battery.

[0060] The battery environment temperature may be the ambient temperature of the battery pack. The battery temperature coefficient may be used to characterize the change in voltage of the battery when the battery temperature changes by 1 degree.

[0061] In the embodiment of the present invention, the battery pack charging management unit can obtain the battery environment temperature, voltage and current of the battery pack, and then calculate the current temperature coefficient of the battery according to the thermodynamic function based on the obtained battery environment temperature, voltage and current, so as to adjust the input power of the battery according to the current temperature coefficient of the battery, so that the charging current and voltage change with the change of the temperature coefficient of the battery pack, so that the battery pack can reach the best charging state in a wide temperature range. At the same time, the dedicated battery pack SOC power detection module can avoid overcharging and over-discharging of the battery, which can extend the service life of the battery pack and reduce capacity attenuation.

[0062] When the mains or silicon power input is valid, the battery pack charging management unit completes the intelligent charging management function of the battery pack; when the mains and silicon power input are valid at the same time, the mains input charging takes precedence over the silicon power input charging. According to the voltage, current and battery ambient temperature of the battery pack, the charging current and voltage change with the temperature coefficient of the battery pack, so that the battery pack can reach the optimal charging state in a wide temperature range. It can also avoid overcharging and over-discharging of the battery based on the dedicated battery pack SOC power detection module, extend the service life of the battery pack and reduce capacity attenuation.

[0063] In a specific example, the basic process of the vehicle power integrated management system is: 1) Turn on the vehicle power integrated management system and use the battery pack to power the intelligent detection management module so that the detection circuit starts working and makes an intelligent judgment on the input source; 2) The three-input priority power supply control circuit and the two-input priority power supply control circuit work first, and make judgments according to the priority level of AC power > silicon generator > battery pack. When the AC input meets the input range of ±20%, the AC-to-DC power supply is directly output to the power load; 3) If the AC power supply is abnormal, determine whether the silicon generator energy meets the input range of 24V to 32V. If normal, power the equipment; 4) If the silicon generator energy exceeds the input range, determine whether the battery pack power supply is within the effective power supply range of 21V to 29.2V. If it is within the effective range, the battery pack powers the load. When the discharge voltage of the battery pack is lower than 21V, the output channel is closed and an alarm is given to the outside; 5) Between the mains and silicon power generation, the mains is preferred as the charging power source for the battery pack. The external protection circuit can ensure the switching moment and minimize the startup surge current; 6) The charging and discharging circuit of the battery pack can realize accurate and fast charging of the battery pack in a wide temperature range, and realize the control of the three charging logic states (high current, controllable overcharge and floating charge) of the battery pack, so that the charging voltage of the charging circuit can change with the change of the temperature coefficient of the battery pack, and control is realized through the voltage control loop and the current control loop, so that the battery pack can reach the optimal charging state in a wide temperature range; 7) The real-time working condition and fault detection and reporting logic set throughout the process are realized, and the voltage sampling of each channel is realized by analog circuit plus high linearity analog optocoupler device, current sampling is realized by Hall sensor, temperature sampling is realized by digital temperature sensor, etc. The sampling value is sent to the micro control unit, and the algorithm is processed for the adopted result to realize the control, protection, display and alarm functions of the full power supply link. It has a data management interface and can communicate real-time data to the upper. Among them, the logic reference of input priority judgment and power output Figure 4 .

[0064] The special vehicle power integrated management system includes a power priority control management unit, an intelligent monitoring unit, and a battery pack charging management unit, and implements multiple software and hardware control and protection functions. Priority control is achieved by hardware circuits, and real-time detection and secondary control protection functions are achieved by intelligent monitoring units. The system operation status is monitored, and the monitoring results are transmitted to the host computer for display and control. When the hardware circuit control fails, it can be detected and reported in time, and emergency manual intervention can be implemented immediately to ensure the safety of electrical equipment.

[0065] Compared with the traditional vehicle-mounted power distribution box, this special vehicle power integrated management system can achieve:

[0066] 1. Vehicle startup sequence requirements

[0067] Due to the large number of devices on the vehicle, sampling program control plus manual switch is used to independently control the power-on devices. When the switch is turned to the manual control position, the power-on of each device can be confirmed by the device switch. When the switch is turned to program control, the monitoring device is powered on first, and then the control information is sent to the power monitoring board through the communication port (serial port) to confirm whether each device is powered on. Avoid large current when the device is powered on and mutual interference between devices at the moment of powering on.

[0068] 2. Power supply input priority judgment and uninterrupted power supply

[0069] The special vehicle power integrated management system sets the priority of power supply input, which is AC power, silicon power generation and battery pack in order. This can prevent interference and damage to equipment caused by the simultaneous existence or misoperation of multiple power sources.

[0070] 3. Complete power protection function

[0071] In order to solve the problem of electrical safety protection in the vehicle, a detection and protection unit is set up in the management equipment, which can realize grounding, leakage voltage and leakage current detection and protection functions. It has lightning protection function for the external AC power input, wired interface, serial port and network port, and can realize fault information reporting.

[0072] 4. Intelligent detection and protection of battery charging and discharging

[0073] The dedicated battery pack is an important part of the special vehicle power integrated management system. In order to adapt to the wide range of high and low temperature environment requirements of the vehicle and improve the service life of the battery pack, the special vehicle power integrated management system uses ambient temperature compensation technology when charging the dedicated battery pack. Since excessive undervoltage during power supply of the battery pack will also cause capacity reduction or even damage, the battery pack charging management unit sets the voltage for the termination of discharge of the dedicated battery pack, which is 21±0.1V.

[0074] The special vehicle power integrated management system is equipped with a human-machine interaction system to complete the system's control function, detection function, protection function, display function, and alarm function. It also has a data management interface, which can interact with the communication system through the special vehicle power integrated management system and access the superior network system to achieve remote monitoring. Each functional module adopts an integrated modular form, which is easy to replace and test, and improves the six performance indicators of the power supply equipment.

[0075] Embodiment 3

[0076] This embodiment provides a comprehensive management method for power supply of special vehicles, which can be applied to the intelligent and automatic management of power supply of special vehicles. The method can be executed by an intelligent detection management module, which can be configured in a characteristic vehicle. The method includes: determining the current power supply mode according to the input validity signals of the mains, silicon-generated energy and battery pack and the power input priority, and monitoring and reporting the system operation parameters in real time; wherein, the power input priority is that the mains priority is greater than the silicon-generated energy, and the silicon-generated energy priority is greater than the battery pack.

[0077] Optionally, a comprehensive power management method for special vehicles includes: determining the current valid input power type based on the AC power, silicon power generation and input validity signals of the battery pack, and determining the current power supply mode of the battery pack and the current power supply mode of the load based on the power input priority and the current valid input power type.

[0078] Optionally, the comprehensive management method of special vehicle power supply also includes: acquiring system operating parameters in real time, and uploading the system operating parameters to a host computer through a serial port to display the data on the host computer.

[0079] Optionally, the comprehensive management method for special vehicle power supply also includes: determining the faulty component according to the system operating parameters, and blocking the faulty component; and providing a function setting interface to the user.

[0080] Optionally, the comprehensive management method of special vehicle power supply also includes: determining a current temperature coefficient of the battery according to the battery ambient temperature, voltage and current of the battery pack, and adjusting the input power of the battery according to the current temperature coefficient of the battery.

[0081] The technical solution of the embodiment of the present invention determines the current power supply mode according to the input validity signals of the mains, silicon power generation and battery pack and the power input priority, and monitors and reports the system operating parameters in real time. This solution has a multi-input and multi-output working mode, and has the functions of full-process intelligent management of the power supply link, intelligent charging of the battery pack, and real-time monitoring of input and output voltage and current. In addition, when a power supply failure occurs, the fault can be quickly located based on the current power supply mode, thereby improving maintenance efficiency, solving the problem that the traditional special vehicle power management has a low degree of automation and the fault location and maintenance are relatively complex, and can improve the degree of automation of special vehicle power management and reduce the complexity of fault location and maintenance.

[0082] Embodiment 4

[0083] In some embodiments, the special vehicle power integrated management method may be implemented as a computer program tangibly embodied in a computer-readable storage medium.

[0084] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0085] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0086] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0087] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0088] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0089] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of traditional physical hosts and VPS servers, which are difficult to manage and have weak business scalability.

[0090] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0091] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special vehicle power integrated management system, characterized in that: include: AC filter, DC filter, AC-DC converter, intelligent detection management module and secondary power supply unit; The DC filter, the AC-DC converter and the secondary power supply unit are all connected to the intelligent detection management module; the AC filter is connected to the AC-DC converter; The AC filter is used to transmit the mains power to the intelligent detection management module through the AC-DC converter; The DC filter is used to transmit the silicon-generated electricity to the intelligent detection management module through the DC filter; The intelligent detection management module is used to determine the current power supply mode according to the input validity signals of the mains power, silicon power generation and battery pack and the power input priority, and to monitor and report the system operation parameters in real time; Among them, the priority of power input is that the mains power priority is higher than the silicon power generation energy, and the silicon power generation energy priority is higher than the battery pack.

2. The system according to claim 1, characterized in that It also includes a detection and protection unit, which is used to collect the test ground electrical signal and the vehicle body ground electrical signal, and send the test ground electrical signal and the vehicle body ground electrical signal to the intelligent detection management module.

3. The system according to claim 2, characterized in that The intelligent detection management module includes: a power priority control management unit, an intelligent monitoring unit and a battery pack charging management unit; The power priority control management unit is used to determine the current valid input power type based on the AC power, silicon power generation and the input validity signal of the battery pack, and to determine the current power supply mode of the battery pack and the current power supply mode of the load based on the power input priority and the current valid input power type.

4. The system according to claim 3, characterized in that The power priority control management unit further includes: a three-input associated MOS tube, a two-input associated MOS tube, a three-input priority power supply control circuit and a two-input priority power supply control circuit; The three-input priority power supply control circuit is connected to the three-input associated MOS tube, and the three-input associated MOS tube is connected to the secondary power supply unit; The two-input priority power supply control circuit is connected to the two-input associated MOS transistors, and the two-input associated MOS transistors are connected to the battery pack; The three-input priority power supply control circuit is used to determine the current power supply mode of the load; the two-input priority power supply control circuit is used to determine the current power supply mode of the battery pack.

5. The system according to claim 3, characterized in that The intelligent monitoring unit is used to obtain system operating parameters in real time, and upload the system operating parameters to a host computer through a serial port so as to display the data on the host computer.

6. The system according to claim 3, characterized in that The intelligent monitoring unit is further used to determine the faulty component according to the system operation parameters and block the faulty component; The intelligent monitoring unit is also used to provide a function setting interface for the user.

7. The system according to claim 3, characterized in that The battery pack charging management unit is used to determine the current temperature coefficient of the battery according to the battery environment temperature, voltage and current of the battery pack, and adjust the input power of the battery according to the current temperature coefficient of the battery.

8. The system according to claim 1, characterized in that The secondary power supply unit includes a DC-DC converter and a DC-AC inverter power supply.

9. A method for comprehensive management of power supply for special vehicles, characterized in that: Executed by the intelligent detection management module, including: Determine the current power supply mode based on the input validity signals of the mains, silicon power generation and battery pack, as well as the power input priority, and monitor and report the system operating parameters in real time; Among them, the priority of power input is that the mains power priority is higher than the silicon power generation energy, and the silicon power generation energy priority is higher than the battery pack.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the special vehicle power integrated management method described in claim 9 when executed by a processor.

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