CN113844310A - Method for controlling a charging system and charging system - Google Patents

Method for controlling a charging system and charging system Download PDF

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Publication number
CN113844310A
CN113844310A CN202111177966.9A CN202111177966A CN113844310A CN 113844310 A CN113844310 A CN 113844310A CN 202111177966 A CN202111177966 A CN 202111177966A CN 113844310 A CN113844310 A CN 113844310A
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China
Prior art keywords
charging
vehicle
event
charging system
temperature
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Pending
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CN202111177966.9A
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Chinese (zh)
Inventor
唐霖
杨泽洲
林全喜
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co Ltd
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Priority to CN202111177966.9A priority Critical patent/CN113844310A/en
Publication of CN113844310A publication Critical patent/CN113844310A/en
Priority to PCT/CN2022/119389 priority patent/WO2023056836A1/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/62Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The embodiment of the disclosure provides a method for controlling a charging system and the charging system. The method comprises the following steps: acquiring sensing information related to a charging condition of a vehicle from a light sensing apparatus; identifying an event affecting charging safety of the vehicle based on the acquired sensing information; and outputting at least one of a warning signal to alert a charging operator or to record an event and a control signal to alter a power output from the charging system to the vehicle based on the identified event. Through the embodiment of the disclosure, potential safety hazards which may appear in each link of the vehicle charging process can be effectively and timely eliminated, so that charging safety accidents are avoided.

Description

Method for controlling a charging system and charging system
Technical Field
The present disclosure relates generally to the field of charging technology, and more particularly, to a method for controlling a charging system and a corresponding charging system.
Background
In order to reduce carbon emissions and to cope with problems such as air pollution, new energy vehicles such as electric vehicles are increasingly popularized in some countries and regions to replace conventional fuel vehicles. Electric vehicles need to be charged in a charging station or other charging location using a charging system to meet their power requirements. In the charging process of the electric vehicle, safety accidents are very easy to occur. Investigations have shown that of the many electric vehicle spontaneous combustion events that have already occurred, the highest percentage of events occur during charging.
There are many factors that affect the charging safety of a vehicle. For example, in an alternating current charging device, there are problems that a residual current protection function does not meet the national standard requirement, no output overload protection and the like; in the direct current charging equipment, the problems that the equipment response requirement is not timely, the consistency of the communication protocol is poor, the interoperation does not reach the standard, the charging interface structure such as an electronic lock does not meet the national standard requirement and the like exist; these problems reduce the one-time charging success rate of the ac/dc charging device and increase the potential safety hazard. In addition, in the whole process from the time when the vehicle enters the charging place to the time when the charging is finished, potential safety hazards may exist in many links. However, due to lack of safety management in the charging process or due to negligence of managers or operators, some safety hazards can quickly develop into charging safety accidents due to lack of timely intervention, so that personnel and property loss is caused.
Currently, there is no effective means to manage charging safety automatically or in real time. In particular, as charging technology and battery technology are continuously developed, more and more charging systems can adopt a high-power fast charging mode, such as low-voltage high-current and high-voltage low-current technology, and the high power during charging further makes the charging safety problem more prominent, such as the high-power current may cause over-temperature at a charging line or a port, thereby causing fire.
Disclosure of Invention
In order to solve the above problem, embodiments of the present disclosure provide a scheme of controlling a charging system.
In a first aspect of the present disclosure, there is provided a method of controlling a charging system, comprising: acquiring sensing information related to a charging condition of a vehicle from a light sensing apparatus; identifying an event affecting charging safety of the vehicle based on the acquired sensing information; and outputting at least one of a warning signal to alert a charging operator or to record an event and a control signal to alter a power output from the charging system to the vehicle based on the identified event.
In the embodiment of the present disclosure, the cooperation of the light sensing device and the controller may be utilized to automatically and intelligently detect or identify a dangerous condition that may occur when the vehicle is charged, and control the power conversion device to immediately change the charging power or issue a reminder to the operator when the dangerous condition occurs. Therefore, potential safety hazards which may appear in each link of the vehicle charging process can be eliminated, and accidents are avoided.
In some implementations of the present disclosure, acquiring the sensing information related to the charging condition of the vehicle from the light sensing device includes: at least one of infrared sensing information and visible light sensing information related to a charging condition of the vehicle is acquired from the light sensing apparatus. In this way, the controller can obtain visible light images, infrared images or temperature information, and can thus determine whether an event affecting the charging safety occurs during the charging process of the vehicle by means of the information.
In some implementations of the present disclosure, identifying an event affecting charging safety of the vehicle based on the acquired sensed information includes: determining a temperature at a charging connection location between the charging system and the vehicle based on the acquired infrared sensing information; and identifying an event affecting the charging safety of the vehicle based on the determined temperature. By this implementation, it is possible to determine whether there is an over-temperature problem in the charging process of the vehicle, which may cause a serious accident such as a fire.
In some implementations of the present disclosure, identifying an event affecting charging safety of the vehicle based on the acquired sensed information includes: determining, based on the acquired infrared sensing information, a duration of time for which a temperature at a charging connection location between the charging system and the vehicle is above a threshold temperature; and identifying an event affecting the charging safety of the vehicle based on the determined duration exceeding the predetermined length of time. Through the implementation mode, whether the over-temperature influences the safety in the charging process can be determined more accurately, so that misjudgment is avoided.
In some implementations of the present disclosure, the temperature at the charging connection location includes at least one of: a temperature of a charging gun of the charging system, a temperature of a charging cable of the charging system, and a temperature of a charging port of the vehicle. In this implementation, infrared sensing information can be acquired for a charging gun, a cable, and a vehicle charging port, which are prone to over-temperature, so that the charging temperature can be accurately determined.
In some implementations of the present disclosure, identifying an event affecting charging safety of the vehicle based on the acquired sensed information includes: identifying a behavior affecting charging safety of the vehicle based on the acquired sensing information; and identifying, based on the identified behavior, an event affecting the charging safety of the vehicle. Through the implementation mode, whether dangerous behaviors influencing charging safety appear in the charging process can be judged, so that potential charging safety hazards can be eliminated in time.
In some implementations of the present disclosure, the act of affecting the charge safety of the vehicle includes at least one of: displacement of a charging gun for a vehicle of a charging system, movement of the vehicle, and proximity of foreign objects to the charging gun. In this kind of implementation, the aversion of the rifle that charges, the removal of vehicle and the foreign matter is close to the rifle that charges and is the dangerous action that influences charging safety comparatively easily, through in time detecting these actions, can in time get rid of the potential safety hazard that charges.
In some implementations of the present disclosure, outputting at least one of the early warning signal and the control signal based on the identified event includes: determining a risk level for the event based on the identified event; if the determined risk level is a low risk level, outputting an early warning signal; outputting a control signal for reducing the power output if the determined risk level is a medium risk level; and outputting a control signal for stopping the power output if the determined risk level is a high risk level. By the implementation mode, finer control can be performed according to the risk level of the event, so that the charging efficiency is improved as much as possible under the condition that the charging safety is ensured.
In some implementations of the present disclosure, the method further comprises: determining that the vehicle is entering a charging area based on sensing information for the charging area acquired from a light sensing device before the charging system charges the vehicle; determining whether a vehicle entering a charging area matches a target vehicle; and if the vehicle is determined to be matched with the target vehicle, outputting a lock falling signal, wherein the lock falling signal is used for falling a parking spot lock in the charging area. In the implementation mode, intelligent control of vehicle charging can be achieved in a home charging scene, and therefore user experience is improved.
In some implementations of the present disclosure, the method further comprises: acquiring sensing information of the vehicle from the light sensing device before the vehicle is charged by the charging system; identifying a vehicle type of the vehicle based on the sensed information of the vehicle; determining a charging profile for the vehicle based on the identified model of the vehicle; and outputting an initial control signal for controlling power output based on the determined charging profile and battery state information acquired from the vehicle when the charging system is connected to the vehicle. In such an implementation, an optimal charging configuration of the vehicle may be predetermined before the vehicle is charged, thereby improving charging efficiency.
In a second aspect of the present disclosure, there is provided an apparatus for controlling a charging system, comprising: an acquisition module configured to acquire sensing information related to a charging condition of a vehicle from a light sensing device; an identification module configured to identify an event affecting charging safety of the vehicle based on the acquired sensed information; and an output module configured to output at least one of a warning signal for alerting a charging operator or for recording an event and a control signal for changing a power output from the charging system to the vehicle.
In some implementations of the present disclosure, the obtaining module is further configured to: at least one of infrared sensing information and visible light sensing information related to a charging condition of the vehicle is acquired from the light sensing apparatus.
In some implementations of the present disclosure, the identification module is further configured to: determining a temperature at a charging connection location between the charging system and the vehicle based on the acquired infrared sensing information; and identifying an event affecting the charging safety of the vehicle based on the determined temperature.
In some implementations of the present disclosure, the identification module is further configured to: determining, based on the acquired infrared sensing information, a duration of time for which a temperature at a charging connection location between the charging system and the vehicle is above a threshold temperature; and identifying an event affecting the charging safety of the vehicle based on the determined duration exceeding the predetermined length of time.
In some implementations of the present disclosure, the temperature at the charging connection location includes at least one of: a temperature of a charging gun of the charging system, a temperature of a charging cable of the charging system, and a temperature of a charging port of the vehicle.
In some implementations of the present disclosure, the identification module is further configured to: identifying a behavior affecting charging safety of the vehicle based on the acquired sensing information; and identifying, based on the identified behavior, an event affecting the charging safety of the vehicle.
In some implementations of the present disclosure, the act of affecting the charge safety of the vehicle includes at least one of: displacement of a charging gun for a vehicle of a charging system, movement of the vehicle, and proximity of foreign objects to the charging gun.
In some implementations of the present disclosure, the output module is further configured to: determining a risk level for the event based on the identified event; outputting a control signal for stopping power output if the determined risk level is a high risk level; outputting a control signal for reducing the power output if the determined risk level is a medium risk level; and outputting an early warning signal if the determined risk level is a low risk level.
In some implementations of the present disclosure, the apparatus further includes a state determination module and a vehicle matching module, wherein: the state determination module is configured to determine that the vehicle is entering the charging area based on sensing information for the charging area acquired from the light sensing device before the charging system charges the vehicle; the vehicle matching module is configured to determine whether a vehicle entering a charging area matches a target vehicle; and the output module is further configured to output a lock-down signal if the vehicle is determined to match the target vehicle, the lock-down signal being used to lock down a parking spot lock in the charging area.
In some implementations of the present disclosure, the apparatus further includes a vehicle type identification module and a curve determination module, wherein: the acquisition module is further configured to acquire sensing information of the vehicle from the light sensing device before the vehicle is charged by the charging system; the vehicle type identification module is configured to identify a vehicle type of the vehicle based on the sensed information of the vehicle; the curve determination module is configured to determine a charging curve for the vehicle based on the identified vehicle type; and the output module is further configured to output an initial control signal for controlling the power output based on the determined charging profile and the battery state information acquired from the vehicle when the charging system is connected to the vehicle.
In a third aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory coupled with the processor, the memory having instructions stored therein, which when executed by the processor, cause the apparatus to perform the method according to the first aspect.
In a fourth aspect of the present disclosure, a computer readable storage medium is provided, having stored thereon computer program code, which when executed performs the method according to the first aspect.
In a fifth aspect of the disclosure, there is provided a computer program product, tangibly stored on a computer-readable medium and comprising computer-executable instructions that, when executed, cause an apparatus to perform the method according to the first aspect.
In a sixth aspect of the present disclosure, there is provided a charging system comprising: a light sensing device; and a controller configured to perform the method according to the first aspect.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 illustrates a schematic diagram of an example charging scenario in which some embodiments of the present disclosure may be implemented.
Fig. 2 illustrates a schematic block diagram of a portion of a device of a charging system in accordance with some embodiments of the present disclosure.
Fig. 3 illustrates a schematic diagram of another example charging scenario in which some embodiments of the present disclosure may be implemented.
Fig. 4 shows a schematic flow diagram of a method of controlling a charging system according to an embodiment of the disclosure.
FIG. 5 shows a schematic block diagram of one method of identifying an event affecting the charging safety of a vehicle, in accordance with an embodiment of the present disclosure.
FIG. 6 shows a schematic block diagram of another method of identifying an event affecting the charging safety of a vehicle, in accordance with an embodiment of the present disclosure.
Fig. 7 shows a schematic block diagram of a method of outputting a warning signal and/or a control signal according to an embodiment of the present disclosure.
Fig. 8 shows a schematic block diagram of a method according to another embodiment of the present disclosure.
Fig. 9 shows a schematic block diagram of a method according to a further embodiment of the present disclosure.
Fig. 10 shows a schematic block diagram of an apparatus to control a charging system according to an embodiment of the present disclosure.
FIG. 11 shows a schematic block diagram of an example device that may be used to implement embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
In describing embodiments of the present disclosure, the terms "include" and its derivatives should be interpreted as being inclusive, i.e., "including but not limited to. The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions are also possible below.
As described above, there are many safety hazards in the vehicle charging process, such as over-temperature problem at the charging line or port, which are liable to cause accidents. In a conventional solution, a temperature sensor is provided on the charging gun, and simultaneously, the voltage and current on the output breaker of the charging system are detected, thereby preventing accidents due to excessive temperature. However, this method has poor reliability and cannot effectively eliminate the hidden trouble. For example, when a charging gun is inserted into a charging port of an electric vehicle to charge the vehicle, the charging gun and the electric vehicle are in contact with each other through a male terminal and a female terminal to perform electric energy transmission, and communication signals are transmitted through a signal line (such as a PE signal line); however, due to some reasons, such as the charging gun not being completely inserted in place or the charging gun/charging port of the electric vehicle being worn, poor contact may result, an abnormality may occur in signal transmission, which in turn may result in failure to know an over-temperature condition, thereby causing a fire accident.
In response to the above and other potential problems, embodiments of the present disclosure provide a scheme for controlling a charging system. According to the embodiment of the disclosure, the light sensing device may be disposed in the charging system, and the controller of the charging system may acquire information sensed by the light sensing device, thereby automatically detecting or identifying a dangerous condition that may occur when the vehicle is charged. When a dangerous condition occurs, the charging system can immediately change the charging power or send a prompt to an operator, so that potential safety hazards possibly occurring in the vehicle charging process can be eliminated in time, accidents are avoided, and the charging safety management of the vehicle is effectively and reliably realized.
Fig. 1 illustrates a schematic diagram of an example charging scenario 100 in which some embodiments of the present disclosure may be implemented. Some typical facilities are schematically shown in this example charging scenario 100. It should be understood that these illustrated facilities are merely examples, and that the types and numbers of the partial facilities will vary from charging scenario to charging scenario, depending on the actual situation. The scope of the present disclosure is not limited in this respect.
As shown in fig. 1, a charging area 20 is provided in the vicinity of the charging system 10, and a vehicle 30 is parked in the charging area 20. The vehicle 30 may be a pure electric vehicle, a hybrid vehicle, or any other vehicle that requires charging.
The charging system 10 may include a charging pile 11. The charging pile 11 is provided with a charging gun and a charging cable as a charging interface, and can be electrically connected to a charging port of the vehicle 30 to charge the vehicle 30. The charging post 11 shown in fig. 1 is a floor type charging post and has one charging interface. However, the type of the charging pile 11 is not limited thereto, and may be a wall-mounted charging pile or other type of charging pile, and the charging pile 11 may include any number of charging interfaces. In addition, the charging pile 11 may further include, for example, a human-machine interface, a metering device, an overvoltage protection device, an overcurrent protection device, an earth leakage protection device, and the like.
The charging system 10 may include a power conversion device 12 and a controller 13. The power conversion apparatus 12 is connected to the charging post 11 and a power source such as a utility grid so that electric energy from the power source is delivered to the charging post 14 via the power conversion apparatus 12 to be supplied to the vehicle 30 to be charged. The controller 13 may be communicatively connected to the power conversion device 12 in a wired and/or wireless manner to control the power output of the power conversion device 12. In addition, the controller 13 may be connected to a remote computer or server 80 (e.g., may be located at a control center of the charging station) in a wired and/or wireless manner to provide status information or receive control instructions, and the controller 13 may be further connected to the internet or cloud 90 via the computer or server 80. Alternatively, the Controller 13 may be communicatively coupled to the vehicle 30 in a wired and/or wireless manner, such as by way of a Controller Area Network (CAN), 4G, WiFi, bluetooth, etc. to communicate information with the vehicle 30.
As an example, the power conversion device 12 may include a plurality of charging modules and a smart breaker matrix. Each charging module may include a converter capable of performing power conversion functions such as rectification, DC-DC conversion, and output a fixed range of power. The connection of each charging module to the charging pile 11 depends on the switching on and off of the corresponding circuit breaker in the intelligent circuit breaker matrix. The controller 13 may output a control signal to the power conversion apparatus 12 to control the switching of the respective circuit breakers in the smart circuit breaker matrix so as to connect a required number of charging modules to the charging post 11, and the controller 13 may also control the power output of each charging module. Thus, the controller 13 may effect regulation and control of the power output of the power conversion device 12.
The charging system 10 may further include an optical sensing device 14. The light-sensing device 14 may face the charging area 20 and the vehicle 30 located in the charging area 20 to receive light from the charging area 20 and the vehicle 30, so that information of the charging condition of the vehicle 30 located in the charging area 20 may be acquired. As an example, the light-sensing device 14 may include an infrared sensor or a visible light sensor, or may include both an infrared sensor and a visible light sensor, or may be a device that integrates an infrared sensing function and a visible light sensing function. For example, the light-sensing device 14 may be a visible light camera, an infrared camera, or an integrated camera, and has a wide-angle photographing function to cover at least the charging area 20. As shown in fig. 1, the photo-sensing device 14 may be mounted on the charging post 11. However, the mounting position of the light-sensing device 14 is not limited thereto, but may be mounted at any suitable position capable of receiving light from the charging area 20 and the vehicle 30. The light sensing device 14 may be communicatively connected to the controller 13 in a wired and/or wireless manner to transmit the sensing information to the controller 13. Thus, the controller 13 can control the power conversion apparatus 12 according to these sensed information.
It is noted that the charging system 10 shown in fig. 1 is merely illustrative, and may be implemented in various forms. For example, the charging system 10 may include a charging terminal and a charger, and the charging pile 11 and the light-sensing device 14 may be located on the charging terminal side, and the power conversion device 12 may be located on the charger side. Further, as an example, fig. 2 shows a schematic block diagram of a part of the devices of the charging system 10 according to one embodiment of the present disclosure. As shown in fig. 2, the controller 13 may be composed of a control host 131 and a near-end chip 132, for example, and the control host 131 may be located at the charger side, and the near-end chip 132 may be located at the charging terminal side, for example, integrated with the light sensing device 14. The near-end chip 132 may include a local memory chip, an image or video processing chip, and an image or video transmission chip. The near-end chip 132 may locally pre-process the sensing information of the light sensing device 14 and transmit the pre-processed information to the control host 131. It can be seen that, by means of local preprocessing, time delay caused by transmission can be reduced, so that sensing information of the light sensing device 14 can be processed more quickly, and meanwhile, the workload of a controller on one side of a charger is greatly reduced.
However, it is understood that the implementation of the controller 13 is not limited thereto, but may also be implemented in the form of a single controller or chip, or more controllers or chips. Further, instead of the form of the charging terminal and the charger, the charging system 10 may be formed as a single body, i.e., the power conversion device 12, the controller 13, and the charging post 14 may be all provided in a single body device, without distinguishing the charging terminal and the charger. Alternatively, the charging pile 11, the power conversion apparatus 12, the controller 13, and the light sensing apparatus 14 may also each be provided separately, or may be partially integrated together.
Fig. 3 illustrates a schematic diagram of another example charging scenario 100' in which some embodiments of the present disclosure may be implemented. The difference from fig. 1 is that in the charging scenario 100', the charging system 10 may include a plurality of charging posts 11-1, 11-2 … … 11-n. Accordingly, a plurality of charging areas 20-1, 20-2 … … 20-n are provided in the vicinity of the plurality of charging posts 11-1, 11-2 … … 11-n, respectively, for parking and charging a plurality of vehicles (e.g., vehicles 30-1 and 30-2). The charging system 10 may also include a plurality of photo-sensing devices 14-1, 14-2 … … 14-n to face the respective charging regions 20-1, 20-2 … … 20-n and the vehicles located in the respective charging regions. As described in fig. 1, the photo sensing devices 14-1, 14-2 … … 14-n may be mounted on the charging posts 11-1, 11-2 … … 11-n, respectively, or any other suitable locations.
Furthermore, the charging system 100 also has a power conversion device 12 and a controller 13. The power conversion device 12 may output power to the plurality of charging posts 11-1, 11-2 … … 11-n, and the controller 13 may be coupled to the plurality of photo-sensing devices 14-1, 14-2 … … 14-n and control the power conversion device 12 according to sensed information from the photo-sensing devices. It will be appreciated that the power conversion device 12 and the controller 13 may control the power output to the plurality of charging poles 11-1, 11-2 … … 11-n in any suitable manner based on the plurality of photo-sensing devices 14-1, 14-2 … … 14-n. For example, the power conversion device 12 may vary the total power output, as well as the power output to a single charging post (e.g., 11-1). For example, the controller 13 may receive information of one or more photo-sensing devices and control power output to the corresponding charging post or the vehicle in the corresponding charging area according to the sensing information from each photo-sensing device, for example, the controller 13 may control the power conversion device 12 to change charging power output to the charging post 11-1 or the vehicle in the charging area 20-1 according to the sensing information of the photo-sensing device 14-1. Alternatively, the controller 13 may control the charging power of the vehicle for a non-corresponding charging pile or charging area according to the sensing information of a certain photo-sensing device, for example, the controller 13 may change the charging power output to the vehicle in the charging pile 11-2 or charging area 20-2 according to the sensing information of the photo-sensing device 14-1. Alternatively, the controller 13 may receive the sensing information of a plurality of light-sensing devices and perform comprehensive processing on the sensing information to change the charging power of the vehicle of one or more charging areas, for example, the controller 13 may perform weighting processing on the sensing information of each light-sensing device according to the correlation of the light-sensing device with the one or more charging areas.
Fig. 4 shows a schematic flow diagram of a method 400 of controlling the charging system 10 according to an embodiment of the present disclosure. The method 400 may be implemented in the charging scenarios 100 and 100' of fig. 1 and 3, and may be performed by the controller 13 of the charging system 10 or other suitable device. It is to be appreciated that the various aspects described above with respect to fig. 1-3 may be applicable to the method 400. For purposes of discussion, the method 400 will be described in conjunction with fig. 1-3.
At block 401, the controller 13 acquires sensed information related to the charging condition of the vehicle 30 from the light-sensing device 14. Specifically, during the charging of the vehicle 30 in the charging area 20 by the charging system 10, since the light-sensing device 14 faces the vehicle 30 being charged, the sensing area of the light-sensing device 14 covers the vehicle 30 and the charging-related components in the charging system 10, so that the sensing information related to the charging condition of the vehicle 30, which reflects whether or not there is a safety hazard in the charging process of the vehicle 30, can be acquired.
In certain embodiments of the present disclosure, the controller 13 may acquire at least one of infrared sensing information and visible light sensing information related to the charging condition of the vehicle 30 from the light sensing device 14. As an example, the light-sensing device 14 may include an infrared sensor and/or a visible light sensor, and may be, for example, an integrated camera having infrared camera shooting and visible light camera shooting functions. During the charging process, the power transmission may cause some components in the charging system 10 and the vehicle 30 to heat and thus radiate infrared light or infrared light outward. Through the infrared sensing information obtained by the photo sensing device 14, the controller 13 can determine the temperatures of these heat generating components and determine whether there is an excessive temperature during the charging process. Further, at night and in the absence of lighting, the infrared sensing information may help the controller 13 obtain an infrared image, which may indicate, for example, the location of some components of the charging system 10 (e.g., the charging gun) and the vehicle 30, thereby helping the controller 13 determine whether a dangerous event has occurred. On the other hand, during the day or in the presence of lighting, the light sensing device 14 may acquire visible light reflected by the vehicle 30 and components of the charging system 10 within the sensing area. The controller 13 can directly obtain a visible light image based on the sensing information, and thereby determine whether a dangerous event occurs.
At block 402, the controller 13 identifies an event affecting the charging safety of the vehicle 30 based on the acquired sensed information. Specifically, the controller 13 may use the sensed information from the light sensing device 14 to automatically and real-timely determine whether there is a dangerous event that may cause a safety accident during charging.
At block 403, the controller 13 outputs at least one of a warning signal to alert a charging operator or to record the event and a control signal to vary the power output from the charging system 10 to the vehicle 30 based on the identified event. Specifically, after identifying an event affecting charging safety, the controller 13 may determine what action to take depending on the specifics of the event. For example, the controller 13 may issue an audio or visual alarm that alerts the operator, or simply record the event for review by the operator when needed. The controller 13 may also directly issue control signals to the power conversion device 12 to vary the power output to the charging post 11, i.e., to vary the power output to the vehicles 30 in the charging area 20.
For example, the controller 13 may obtain the threshold temperature T of the charging gun from the vehicle and a charging database (e.g., located on the charger side of the charging system 10)maxAnd the controller 13, upon receiving the sensed information indicative of the charging temperature (e.g., the temperature of the charging gun), may compare the current temperature of the charging gun to the threshold temperature TmaxA comparison is made. If the temperature of the charging gun exceeds a threshold temperature TmaxAnd the duration exceeds a predetermined time, a control signal may be sent to the power conversion device 12 to lower the vehicle30 charging power. After reducing the charging power, if the temperature of the charging gun is still above the threshold temperature TmaxThe charging power continues to be reduced for a predetermined time, and the above-described operation is repeatedly performed until the charging power of the vehicle 30 is reduced to zero.
It should be noted that, although some charging places are equipped with security cameras for monitoring the overall environment of the charging place, in these charging places, there is no communication and cooperation between the cameras and the charging system and the vehicle, so that an operator is required to actively handle and eliminate the safety hazard during the charging process, and this safety management has poor reliability. Furthermore, as previously described, conventional solutions still rely on the detection of a temperature sensor located on the charging gun for over-temperature problems, which is less reliable. In contrast, in the embodiment of the present disclosure, through information interaction and cooperation among the light sensing device 14, the controller 13, and the power conversion device 12, the charging safety during the charging process of the vehicle can be managed intelligently and in real time, for example, the charging safety problem of the vehicle can be solved by an intelligent video method using Artificial Intelligence Plus (AI +), and it is no longer necessary to provide a temperature sensor on the charging gun or the charging cable. Compared with the conventional scheme, the method can effectively eliminate the potential safety hazards of all links in the vehicle charging process.
FIG. 5 shows a schematic block diagram of a method 500 of identifying an event affecting the charging safety of a vehicle. The method 500 is described below in continued relation to the charging scenarios 100 and 100' of fig. 1 and 3.
During the charging process of the charging system 10 to the vehicle 30, there may be serious heating at the charging connection position as a connection node on the power transmission path, and the temperature thereof may effectively indicate whether there is an excessive temperature in the current charging line, which may cause an accident. In this regard, at block 501, the controller 13 determines a temperature at a charging connection location between the charging system 10 and the vehicle 30 based on the acquired infrared sensing information. At block 502, the controller 13 identifies an event affecting the charging safety of the vehicle 30 based on the determined temperature.
In this way, it is possible to determine the temperature of the charging connection position based on the infrared sensing information and determine whether the current charging is safe. The embodiment shown in fig. 5 is more efficient and reliable in this manner than the manner in which the temperature sensor is provided on the charging gun.
Fig. 6 shows a schematic block diagram of a method 600 of identifying an event affecting the charging safety of a vehicle, the method 600 continuing to be described by way of integration with the charging scenarios 100 and 100' of fig. 1 and 3.
At block 601, the controller 13 determines a duration for which the temperature at the charging connection location between the charging system 10 and the vehicle 30 is above a threshold temperature based on the acquired infrared sensing information. At block 602, the controller 13 determines whether the duration exceeds a predetermined length of time. At block 603, the controller 13 identifies an event affecting the charging safety of the vehicle 30 based on the determined duration exceeding the predetermined length of time. Specifically, the controller 13 may continuously monitor the duration of the excessive temperature of the charging connection location and determine that there is a dangerous event affecting the charging safety only if the excessive temperature continues for a sufficiently long time. In this way, misjudgment can be effectively avoided, and the accuracy of identification is improved.
In certain embodiments of the present disclosure, the temperature at the charging connection location comprises at least one of: a temperature of a charging gun of the charging system 10, a temperature of a charging cable of the charging system 10, and a temperature of a charging port of the vehicle 30. As an example, the charging gun and the charging cable of the charging system 10, and the charging port of the vehicle 30 are prone to over-temperature in the case of poor contact or other charging abnormalities, which may cause a serious accident such as a fire when serious. Therefore, by detecting the temperatures at these positions, it is possible to efficiently determine whether or not the current charging is normal, and it is no longer necessary to provide a temperature sensor on the charging gun.
In certain embodiments of the present disclosure, the controller 13 may also identify behaviors that affect the charging safety of the vehicle 30 based on the acquired sensed information, and identify events that affect the charging safety of the vehicle 30 based on the identified behaviors. As an example, the controller 13 may obtain a visible light image and/or an infrared image through visible light sensing information and/or infrared sensing information, and may determine whether there are dangerous behaviors during charging of the vehicle 30, which may cause an accident, for example, through image recognition.
In certain embodiments of the present disclosure, the act of affecting the charge safety of the vehicle 30 includes at least one of: the displacement of the charging gun for the vehicle 30 of the charging system 10, the movement of the vehicle 30, and the approach of foreign objects to the charging gun. Specifically, during charging of the vehicle 30, if the vehicle 30 as a charging object moves or a charging gun inserted into a charging port of the vehicle 30 is displaced, charging abnormality, such as poor electrical contact, or even an arc, may be caused. In addition, the proximity of foreign objects such as metal, animals, etc. to the charging gun may also affect the charging safety, thereby causing accidents. Thus, by identifying these behaviors, it is helpful to determine the events that pose a safety hazard.
Fig. 7 shows a schematic block diagram of a method 700 of outputting a warning signal and/or a control signal, which method 700 continues to be described by way of example in connection with the charging scenarios 100 and 100' of fig. 1 and 3. .
At block 701, the controller 13 determines a risk level for the event based on the identified event. At block 702, the controller 13 determines whether the risk level is a high risk level. At block 703, if the risk level is a high risk level, the controller 13 outputs a control signal for stopping the power output. At block 704, if the controller 13 determines that the risk level is not a high risk level, it is determined whether the risk level is a medium risk level. At block 705, if the risk level is a medium risk level, the controller 13 outputs a control signal for reducing the power output. At block 706, if the controller 13 determines that the risk level is not a medium risk level, it determines whether the risk level is a low risk level. At block 707, the controller 13 outputs an early warning signal if the risk level is a low risk level.
Further, if the event is not classified in a high, medium, or low risk level, the controller 13 may continue to receive and process the sensed information to maintain monitoring, or may prompt the operator in an appropriate manner for the event to be determined by the operator whether action needs to be taken with respect to the event. It is understood that the order of determining the three risk levels is merely exemplary and not restrictive, and thus the determining steps may be performed in other orders or in a parallel process, for example, whether the risk level is low may be determined first. By setting the risk levels, different processing can be performed on events of different risk levels, which can keep charging at a higher efficiency as much as possible under the condition of ensuring charging safety, thereby managing the charging safety of the vehicle in a more elaborate manner. By way of example only, the risk levels of various types of events and corresponding measures are schematically shown below by table 1.
TABLE 1 Risk level and corresponding measures
Figure BDA0003296249620000091
For example, the correspondence of events, risk levels, and protective measures shown in Table 1 may be pre-stored in the vehicle and charging database, and the controller 13 may access the vehicle and charging database as needed to determine the risk level and the specific measures to take based on the identified events. As an example, as shown in the foregoing, in the controller 13 shown in fig. 2, the near-end chip 132 as a local controller portion is located on the charging terminal side, for example, and may be a local AI chip or may upload data to a cloud process. The near-end chip 132 can process the sensing information transmitted by the light sensing device 14 in real time and determine whether there is an abnormality. In case of an abnormality, the near-end chip 132 may access the vehicle and the charging database to determine the risk level and the corresponding measure, and send information to the control host 131 (for example, located on the charger side) so that the control host 131 controls the power conversion device 12 or sends an early warning signal, or the near-end chip 132 may also directly send information to the control host 131, and the control host 131 accesses the vehicle and the charging database to determine the risk level and the corresponding measure, and further controls the power conversion device 12 or sends an early warning signal.
Fig. 8 shows a schematic block diagram of a method 800 according to another embodiment of the present disclosure. At block 801, before the charging system 10 charges the vehicle 30, the controller 13 determines that the vehicle 30 is entering the charging area 20 based on the sensed information for the charging area 20 acquired from the light-sensing device 14. At block 802, the controller 13 determines whether the vehicle 30 entering the charging area matches the target vehicle. At block 803, if it is determined that the vehicle 30 matches the target vehicle, the controller 13 outputs a lock-down signal for locking down the parking spot lock in the charging area 20. As an example, in a home charging scenario, using the sensing information of the light sensing device 14, the controller 13 may determine whether the vehicle 30 that is attempting to enter the charging area 20 is a home vehicle. After the determination, the controller 13 may perform information interfacing with the charging pile 11 in advance and unlock the parking spot lock in the charging area 20 to achieve automatic locking. After confirming that the vehicle 30 parks in place, the controller 13 can also automatically start the information docking of the charging pile 11 and the vehicle 30 so as to match power and charging service in advance, realize plug-and-play charging and improve user experience in a household charging scene.
Fig. 9 shows a schematic block diagram of a method 900 according to yet another embodiment of the present disclosure. The method 900 is described below in continued relation to the charging scenarios 100 and 100' of fig. 1 and 3.
At block 901, the controller 13 acquires sensed information of the vehicle 30 from the light-sensing device 14 before the charging system 10 charges the vehicle 30. At block 902, based on the sensed information of the vehicle 30, the controller 13 identifies a model of the vehicle 30. At block 903, based on the identified vehicle model, the controller 13 determines a charging profile for the vehicle 30. At block 904, the controller 13 outputs an initial control signal for controlling power output based on the determined charging profile and battery status information obtained from the vehicle 30 while the charging system 10 is connected to the vehicle 30.
As an example, when the vehicle 30 enters the charging area 20, the controller 13 may acquire vehicle appearance information by means of information sensed by the light sensing device 14, and access the vehicle database to determine a vehicle type of the vehicle 30 and a charging curve corresponding to the vehicle type. In one embodiment, the near-end chip 132 of the controller 13 may transmit the vehicle profile information to the control host 131, and the control host 131 may then access the vehicle database to determine the model of the vehicle 30 and the charging profile for that model. In one embodiment, the controller 13 may also determine information such as the license plate of the vehicle 30. Then, after the driver of the vehicle 30 inserts the charging gun into the charging port of the vehicle 30, the communication device of the vehicle 30 handshakes with the communication device of the charging system 10, and the information exchange and detection are completed. After the confirmation is completed, the charging system 10 connects the high voltage power and prepares for charging in accordance with the charging program, and the controller 13 reads the State of Charge (SOC) and the charging voltage and current values of the vehicle 30 based on the information uploaded from the vehicle 30 side. Based on the SOC value and the charging profile of the vehicle, the controller 13 may control the power conversion device 12 to output a required charging power to the charging vehicle, for example, may control the smart breaker matrix to allocate charging modules, while other charging modules that are not allocated are disconnected and sleep. In this way, the charging system 10 can know the demand of the vehicle to be charged in advance and charge the vehicle in accordance with the charging configuration required for the vehicle, thereby improving the charging efficiency.
In the charging system and the method of controlling the charging system according to the embodiment of the present disclosure, a dangerous condition that may occur when a vehicle is charged may be automatically detected or identified using cooperation of the light sensing device and the controller, and the power conversion device is controlled to immediately change the charging power or issue a reminder to an operator when the dangerous condition occurs. Therefore, potential safety hazards which may appear in each link of the vehicle charging process can be eliminated, and accidents are effectively avoided.
Fig. 10 shows a schematic block diagram of an apparatus 1000 for controlling a charging system according to an embodiment of the present disclosure. The apparatus 1000 is described below in continued relation to the charging scenarios 100 and 100' of fig. 1 and 3. The apparatus 1000 comprises: an acquisition module 1001 configured to acquire sensing information related to the charging condition of the vehicle 30 from the light-sensing device 14; an identification module 1002 configured to identify an event affecting charging safety of the vehicle 30 based on the acquired sensed information; and an output module 1003 configured to output at least one of a warning signal for alerting a charging operator or for recording an event and a control signal for changing a power output from the charging system 10 to the vehicle 30.
In certain embodiments of the present disclosure, the obtaining module 1001 is further configured to: at least one of infrared sensing information and visible light sensing information related to the charging condition of the vehicle 30 is acquired from the light sensing device 14.
In certain embodiments of the present disclosure, the identification module 1002 is further configured to: determining a temperature at a charging connection location between the charging system 10 and the vehicle 30 based on the acquired infrared sensing information; and based on the determined temperature, identify an event affecting the charging safety of the vehicle 30.
In certain embodiments of the present disclosure, the identification module 1002 is further configured to: determining, based on the acquired infrared sensing information, a duration of time for which a temperature at a charging connection location between the charging system 10 and the vehicle 30 is above a threshold temperature; and identifying an event affecting the charging safety of the vehicle 30 based on the determined duration exceeding the predetermined length of time.
In certain embodiments of the present disclosure, the temperature at the charging connection location comprises at least one of: a temperature of a charging gun of the charging system 10, a temperature of a charging cable of the charging system 10, and a temperature of a charging port of the vehicle 30.
In certain embodiments of the present disclosure, the identification module 1002 is further configured to: identifying a behavior affecting the charging safety of the vehicle 30 based on the acquired sensing information; and identifying an event affecting the charging safety of the vehicle 30 based on the identified behavior.
In certain embodiments of the present disclosure, the act of affecting the charge safety of the vehicle 30 includes at least one of: the displacement of the charging gun for the vehicle 30 of the charging system 10, the movement of the vehicle 30, and the approach of foreign objects to the charging gun.
In certain embodiments of the present disclosure, the output module 1003 is further configured to: determining a risk level for the event based on the identified event; outputting a control signal for stopping power output if the determined risk level is a high risk level; outputting a control signal for reducing the power output if the determined risk level is a medium risk level; and outputting an early warning signal if the determined risk level is a low risk level.
In certain embodiments of the present disclosure, the apparatus 1000 further comprises a state determination module 1004 and a vehicle matching module 1005, wherein: the state determination module 1004 is configured to determine that the vehicle 30 is entering the charging area 20 based on the sensed information for the charging area 20 acquired from the light-sensing device 14 before the charging system 10 charges the vehicle 30; the vehicle matching module 1005 is configured to determine whether the vehicle 30 entering the charging area 20 matches the target vehicle; and the output module 1003 is further configured to output a lock-down signal for locking down a parking spot lock in the charging area 20 if it is determined that the vehicle 30 matches the target vehicle.
In certain embodiments of the present disclosure, the apparatus 1000 further comprises a vehicle type identification module 1006 and a curve determination module 1007, wherein: the acquisition module 1001 is further configured to acquire sensing information of the vehicle 30 from the light sensing device 14 before the charging system 10 charges the vehicle 30; the vehicle type identification module 1006 is configured to identify a vehicle type of the vehicle 30 based on the sensed information of the vehicle 30; the curve determination module 1007 is configured to determine a charging curve for the vehicle 30 based on the identified vehicle type; and the output module 1003 is further configured to output an initial control signal for controlling power output based on the determined charging profile and the battery state information acquired from the vehicle 30 when the charging system 10 is connected to the vehicle 30.
Fig. 11 shows a schematic block diagram of an example device 1100 that may be used to implement embodiments of the present disclosure. The device 1100 may be used to implement the controller 13 in fig. 1 or fig. 3. As shown in fig. 11, the device 1100 includes a computing unit 1101, which can perform various appropriate actions and processes according to computer program instructions stored in a Random Access Memory (RAM) and/or a Read Only Memory (ROM)1102 or loaded from a storage unit 1107 into the RAM and/or ROM 1102. In the RAM and/or ROM 1102, various programs and data required for the operation of the device 1100 may also be stored. The computing unit 1101 and the RAM and/or ROM 1102 are connected to each other by a bus 1103. An input/output (I/O) interface 1104 is also connected to bus 1103.
Various components in device 1100 connect to I/O interface 1104 including: an input unit 1105 such as a keyboard, mouse, and the like; an output unit 1106 such as various types of displays, speakers, and the like; a storage unit 1107 such as a magnetic disk, an optical disk, or the like; and a communication unit 1108, such as a network card, modem, wireless communication transceiver, etc. The communication unit 1108 allows the device 1100 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The computing unit 1101 can be a variety of general purpose and/or special purpose processing components having processing and computing capabilities. Some examples of the computing unit 1101 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and the like. The calculation unit 1101 performs the various methods and processes described above, such as any one of the methods 400-900. For example, in some embodiments, any of the methods 400-900 may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as the storage unit 1107. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 1100 via RAM and/or ROM and/or the communication unit 1108. When the computer program is loaded into RAM and/or ROM and executed by the computing unit 1101, one or more steps of any one of the methods 400-900 described above may be performed. Alternatively, in other embodiments, the computing unit 1101 may be configured to perform any of the methods 400-900 by any other suitable means (e.g., by way of firmware).
Program code for implementing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Further, while operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims (24)

1. A method of controlling a charging system, comprising:
acquiring sensing information related to a charging condition of a vehicle from a light sensing apparatus;
identifying an event affecting charging safety of the vehicle based on the acquired sensed information; and
based on the identified event, outputting at least one of a pre-warning signal for alerting a charging operator or for recording the event and a control signal for altering a power output from the charging system to the vehicle.
2. The method of claim 1, wherein acquiring sensing information related to a charging condition of the vehicle from the light sensing device comprises:
acquiring at least one of infrared sensing information and visible light sensing information related to a charging condition of the vehicle from the light sensing apparatus.
3. The method of claim 2, wherein identifying an event affecting charging safety of the vehicle based on the acquired sensed information comprises:
determining a temperature at a charging connection location between the charging system and the vehicle based on the acquired infrared sensing information; and
based on the determined temperature, an event is identified that affects the charging safety of the vehicle.
4. The method of claim 2, wherein identifying an event affecting charging safety of the vehicle based on the acquired sensed information comprises:
determining, based on the acquired infrared sensing information, a duration of time for which a temperature at a charging connection location between the charging system and the vehicle is above a threshold temperature; and
based on the determined duration exceeding a predetermined length of time, an event is identified that affects the charging safety of the vehicle.
5. The method of claim 3 or 4, wherein the temperature at the charging connection location comprises at least one of: a temperature of a charging gun of the charging system, a temperature of a charging cable of the charging system, and a temperature of a charging port of the vehicle.
6. The method of claim 1, wherein identifying an event affecting charging safety of the vehicle based on the acquired sensed information comprises:
identifying, based on the acquired sensed information, a behavior affecting charging safety of the vehicle; and
based on the identified behavior, an event is identified that affects charging safety of the vehicle.
7. The method of claim 6, wherein the behavior affecting charge safety of the vehicle comprises at least one of: displacement of a charging gun of the charging system for the vehicle, movement of the vehicle, and proximity of foreign matter to the charging gun.
8. The method of claim 1, wherein outputting at least one of a pre-warning signal and a control signal based on the identified event comprises:
determining a risk level for the event based on the identified event;
outputting a control signal for stopping the power output if the determined risk level is a high risk level;
outputting a control signal for reducing the power output if the determined risk level is a medium risk level; and
and if the determined risk level is a low risk level, outputting the early warning signal.
9. The method of claim 1, further comprising:
determining that the vehicle is entering a charging area based on sensing information for the charging area acquired from the light sensing device before the vehicle is charged by the charging system;
determining whether the vehicle entering the charging area matches a target vehicle; and
and if the vehicle is determined to be matched with the target vehicle, outputting a lock falling signal, wherein the lock falling signal is used for falling a parking spot lock in the charging area.
10. The method of claim 1, further comprising:
acquiring sensing information of the vehicle from the light sensing device before the vehicle is charged by the charging system;
identifying a vehicle type of the vehicle based on the sensed information of the vehicle;
determining a charging profile for the vehicle based on the identified vehicle type; and
outputting an initial control signal for controlling the power output based on the determined charging profile and battery status information obtained from the vehicle while the charging system is connected to the vehicle.
11. An apparatus for controlling a charging system, comprising:
an acquisition module configured to acquire sensing information related to a charging condition of a vehicle from a light sensing device;
an identification module configured to identify an event affecting charging safety of the vehicle based on the acquired sensed information; and
an output module configured to output at least one of a warning signal to alert a charging operator or to record the event and a control signal to vary a power output from the charging system to the vehicle.
12. The apparatus of claim 11, wherein the acquisition module is further configured to:
acquiring at least one of infrared sensing information and visible light sensing information related to a charging condition of the vehicle from the light sensing apparatus.
13. The apparatus of claim 12, wherein the identification module is further configured to:
determining a temperature at a charging connection location between the charging system and the vehicle based on the acquired infrared sensing information; and
based on the determined temperature, an event is identified that affects the charging safety of the vehicle.
14. The apparatus of claim 12, wherein the identification module is further configured to:
determining, based on the acquired infrared sensing information, a duration of time for which a temperature at a charging connection location between the charging system and the vehicle is above a threshold temperature; and
based on the determined duration exceeding a predetermined length of time, an event is identified that affects the charging safety of the vehicle.
15. The apparatus of claim 13 or 14, wherein the temperature at the charging connection location comprises at least one of: a temperature of a charging gun of the charging system, a temperature of a charging cable of the charging system, and a temperature of a charging port of the vehicle.
16. The apparatus of claim 11, wherein the identification module is further configured to:
identifying, based on the acquired sensed information, a behavior affecting charging safety of the vehicle; and
based on the identified behavior, an event is identified that affects charging safety of the vehicle.
17. The apparatus of claim 16, wherein the behavior affecting charging safety of the vehicle comprises at least one of: displacement of a charging gun of the charging system for the vehicle, movement of the vehicle, and proximity of foreign matter to the charging gun.
18. The apparatus of claim 11, wherein the output module is further configured to:
determining a risk level for the event based on the identified event;
outputting a control signal for stopping the power output if the determined risk level is a high risk level;
outputting a control signal for reducing the power output if the determined risk level is a medium risk level; and
and if the determined risk level is a low risk level, outputting the early warning signal.
19. The apparatus of claim 11, further comprising a state determination module and a vehicle matching module, wherein:
the state determination module is configured to determine that the vehicle is entering a charging area based on sensing information for the charging area acquired from the light-sensing device before the vehicle is charged by the charging system;
the vehicle matching module is configured to determine whether the vehicle entering the charging area matches a target vehicle; and is
The output module is further configured to output a lock-down signal if the vehicle is determined to match the target vehicle, the lock-down signal for locking down a parking lock in the charging area.
20. The apparatus of claim 11, further comprising a vehicle type identification module and a curve determination module, wherein:
the acquisition module is further configured to acquire sensing information of the vehicle from the light sensing device before the vehicle is charged by the charging system;
the vehicle type identification module is configured to identify a vehicle type of the vehicle based on the sensed information of the vehicle;
the curve determination module is configured to determine a charging curve for the vehicle based on the identified vehicle type; and is
The output module is further configured to output an initial control signal for controlling the power output based on the determined charging profile and battery status information obtained from the vehicle when the charging system is connected to the vehicle.
21. An electronic device, comprising:
a processor; and
a memory coupled with the processor, the memory having instructions stored therein that, when executed by the processor, cause the apparatus to perform the method of any of claims 1-10.
22. A computer readable storage medium having stored thereon computer program code which, when executed, performs the method of any of claims 1 to 10.
23. A computer program product tangibly stored on a computer-readable medium and comprising computer-executable instructions that, when executed, cause an apparatus to perform the method of any of claims 1 to 10.
24. A charging system, comprising:
a light sensing device; and
a controller configured to perform the method of any one of claims 1 to 10.
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