Environment detection method and related apparatus

Abstract

An environment detection method and a related apparatus are provided, and are applied to the field of automobile technologies. In the method, a detection unit with low always-on power consumption performs detection, and when determining that a condition is met, the detection unit wakes up a compute unit with higher power consumption during operation, to perform more accurate detection via the compute unit. This ensures detection accuracy of a safety guard function, and facilitates reduction of power consumption.

Description

ENVIRONMENT DETECTION METHOD AND RELATED APPARATUS

[0001] This application claims priority to Chinese Patent Application No. 202410396147.0, filed with the China National Intellectual Property Administration on March 30, 2024 and entitled "ENVIRONMENT DETECTION METHOD AND RELATED APPARATUS", which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the field of automobile technologies, and in particular, to an environment detection method and a related apparatus.BACKGROUND

[0003] In a scenario in which a vehicle is parked, there may be instances of scratches or collisions occurring on the vehicle, potentially causing damage to the vehicle. In an area without surveillance, it is difficult or impossible for a vehicle owner to obtain proof materials. To protect vehicle parking safety and protect rights and interests of the vehicle owner, when a risk on the vehicle is detected, the vehicle owner can be notified and a video around the vehicle can be saved. However, power consumption for implementing the function in an existing design is high. Therefore, how to design a solution with low power consumption and high detection accuracy becomes a problem to be urgently resolved currently.SUMMARY

[0004] Embodiments of this application provide an environment detection method and a related apparatus, to reduce power consumption when a safety guard function is enabled.

[0005] According to a first aspect, an embodiment of this application provides an environment detection method, and the method may be performed by a detection unit. The detection unit may be a device, or may be a chip (system) or a circuit used for the device. This is not limited in this application. In the method, when a vehicle is in a parking state, a detection unit obtains first environment data, and performs environment detection based on the first environment data. When detecting a first trigger event, the detection unit may send a first wakeup signal and second environment data to a compute unit. The second environment data includes the first environment data and / or a data processing result obtained based on the first environment data. In this embodiment of this application, when the vehicle is in the parking state, the detection unit is in a powered state (or referred to as in an operating state), and before receiving the first wakeup signal, the compute unit is in a sleep state. In the method, the detection unit with low always-on power consumption wakes up the compute unit with higher power consumption, to perform accurate detection. This ensures detection accuracy of an environment safety detection function, and facilitates reduction of power consumption.

[0006] In a possible implementation, the power consumption of the detection unit is lower than the power consumption of the compute unit during operation after the compute unit is woken up.

[0007] In a possible implementation, the first environment data includes a vibration signal from an acceleration sensor.

[0008] The method further includes:

[0009] When the vibration signal exceeds a first vibration threshold, the detection unit determines that the first trigger event is detected.

[0010] In this implementation, when preliminarily identifying a vibration event that may cause danger, the detection unit can wake up the compute unit to perform more accurate detection, thereby enhancing operability.

[0011] In a possible implementation, the first environment data includes sensing data from an environment sensor.

[0012] The method further includes:

[0013] The detection unit determines, based on the sensing data, whether a moving object exists around the vehicle.

[0014] When determining that the moving object exists around the vehicle, the detection unit determines that the first trigger event is detected.

[0015] In this implementation, when detecting that the object approaches an area around the vehicle, the detection unit can wake up the compute unit to perform more accurate detection, thereby enhancing operability.

[0016] In a possible implementation, the detection unit includes a sensing data processing module and a vibration signal processing module, and the first environment data includes a vibration signal from an acceleration sensor and sensing data from an environment sensor.

[0017] The method further includes:

[0018] The vibration signal processing module sends a second wakeup signal to the sensing data processing module when the vibration signal exceeds a first vibration threshold.

[0019] The sensing data processing module determines, based on the sensing data, whether a moving object exists around the vehicle.

[0020] When determining that the moving object exists around the vehicle, the sensing data processing module determines that the first trigger event is detected.

[0021] Before receiving the second wakeup signal, the sensing data processing module is in the sleep state.

[0022] In this implementation, after detecting vibration, the vibration signal processing module wakes up the sensing data processing module to perform detection through vision and a radar, and finally enables the compute unit. This hierarchical wakeup manner can further reduce the power consumption.

[0023] According to a second aspect, an embodiment of this application provides an environment detection method, and the method may be performed by a compute unit. The compute unit may be a device, or may be a chip (system) or a circuit used for the device. This is not limited in this application. In the method, the compute unit receives a first wakeup signal and second environment data from a detection unit. Therefore, after the compute unit is woken up, the compute unit may determine, based on the second environment data, whether to generate alarm information. It should be understood that the second environment data includes first environment data and / or a data processing result obtained based on the first environment data.

[0024] In this embodiment of this application, the detection unit with low always-on power consumption wakes up the compute unit with higher power consumption, to perform accurate detection. This ensures detection accuracy of an environment safety detection function, and facilitates reduction of power consumption.

[0025] In a possible implementation, the second environment data includes the first environment data and the data processing result obtained based on the first environment data, the first environment data includes sensing data and a vibration signal, the data processing result includes a possible area in which the moving object is located, and the possible area in which the moving object is located is determined based on the sensing data.

[0026] That the compute unit determines, based on the second environment data, whether to generate the alarm information includes:

[0027] The compute unit determines a target moving object based on the sensing data and the possible area in which the moving object is located.

[0028] The compute unit generates the alarm information when a distance between the target moving object and a vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold.

[0029] The compute unit re-enters a sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold.

[0030] The vibration intensity of the vehicle is determined based on the vibration signal.

[0031] In this implementation, when detecting a dangerous event, the compute unit generates the alarm information, to remind a user in time. When detecting no dangerous event, the compute unit re-enters the sleep state, which facilitates the reduction of the power consumption.

[0032] In a possible implementation, that the compute unit determines the target moving object based on the sensing data and the possible area in which the moving object is located includes:

[0033] The compute unit determines, based on the sensing data, an area in which at least one object of interest is located.

[0034] The compute unit determines the target moving object based on the area in which the at least one object of interest is located and the possible area in which the moving object is located.

[0035] The at least one object of interest includes the target moving object, and an overlapping degree between the area in which the target moving object is located and the possible area in which the moving object is located is greater than or equal to a preset overlapping degree threshold.

[0036] In this implementation, the compute unit performs fusion processing based on received information and information determined by the compute unit according to a more accurate detection algorithm, to obtain the target moving object, thereby improving the detection accuracy.

[0037] In a possible implementation, the alarm information includes a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information.

[0038] When the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity.

[0039] When the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

[0040] In this implementation, different alarm severities may be set to indicate severity levels of different alarms, and the severity levels of the different alarms further reflect severity levels of dangerous events that occur on the vehicle, thereby helping remind a vehicle owner to check a vehicle condition in time.

[0041] In a possible implementation, the method further includes:

[0042] The compute unit sends a third wakeup signal and the alarm information to a control unit. The alarm information includes a target alarm severity.

[0043] In a possible implementation, the method further includes:

[0044] When the target alarm severity is the first alarm severity, the compute unit displays first alarm prompt information via a display device.

[0045] When the target alarm severity is the second alarm severity, the compute unit sends second alarm prompt information to a user terminal.

[0046] In this implementation, different alarm severities correspond to different prompt manners, which can reflect the severity levels of the dangerous events that occur on the vehicle, thereby helping remind the vehicle owner to check the vehicle condition in time.

[0047] In a possible implementation, the method further includes:

[0048] The compute unit stores video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe compute unit stores video / picture data associated with the alarm information, and re-enters the sleep state after storing the video / picture data associated with the alarm information.

[0049] In this implementation, a valid video is flushed to a disk, so that a material can be provided for the vehicle owner as a subsequent proof. In addition, after the video is flushed to the disk, the compute unit re-enters the sleep mode, which reduces the power consumption.

[0050] In a possible implementation, the method further includes:

[0051] The compute unit re-enters the sleep state when not receiving the second environment data from the detection unit within first duration after generating the alarm information.

[0052] In this implementation, the compute unit may re-enter the sleep state when there is no detection requirement, to reduce the power consumption and facilitate improvement of user satisfaction.

[0053] According to a third aspect, an embodiment of this application provides an environment detection method, and the method may be performed by a control unit. The control unit may be a device, or may be a chip (system) or a circuit used for the device. This is not limited in this application. In the method, the control unit receives a third wakeup signal and alarm information from a compute unit, so that the control unit can prompt an alarm based on the alarm information after the control unit is woken up. The alarm information includes a target alarm severity.

[0054] In this embodiment of this application, the control unit can be woken up when there is an alarm prompt requirement. This facilitates reduction of power consumption.

[0055] In a possible implementation, that the control unit prompts the alarm based on the alarm information includes:

[0056] When the target alarm severity is a first alarm severity, the control unit displays first alarm prompt information via a display device.

[0057] When the target alarm severity is a second alarm severity, the control unit sends second alarm prompt information to a user terminal.

[0058] In this implementation, different alarm severities correspond to different prompt manners, which can reflect severity levels of dangerous events that occur on a vehicle, thereby helping remind a vehicle owner to check a vehicle condition in time.

[0059] In a possible implementation, the method further includes:

[0060] The control unit stores video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe control unit stores video / picture data associated with the alarm information, and re-enters a sleep state after storing the video / picture data associated with the alarm information.

[0061] In this implementation, a valid video is flushed to a disk, so that a material can be provided for the vehicle owner as a subsequent proof. In addition, after the video is flushed to the disk, the compute unit re-enters a sleep mode, which reduces the power consumption.

[0062] According to a fourth aspect, an embodiment of this application provides an environment detection method. In the method, when a vehicle is in a parking state, a detection unit obtains first environment data, and performs environment detection based on the first environment data. When detecting a first trigger event, the detection unit sends a first wakeup signal and second environment data to a compute unit, so that after the compute unit is woken up, the compute unit can determine, based on the second environment data, whether to generate alarm information. The second environment data includes the first environment data and / or a data processing result obtained based on the first environment data. When the vehicle is in the parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

[0063] In a possible implementation, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[0064] In a possible implementation, the first environment data includes a vibration signal from an acceleration sensor.

[0065] The method further includes:

[0066] When the vibration signal exceeds a first vibration threshold, the detection unit determines that the first trigger event is detected.

[0067] In a possible implementation, the first environment data includes sensing data from an environment sensor.

[0068] The method further includes:

[0069] The detection unit determines, based on the sensing data, whether a moving object exists around the vehicle.

[0070] When determining that the moving object exists around the vehicle, the detection unit determines that the first trigger event is detected.

[0071] In a possible implementation, the detection unit includes a sensing data processing module and a vibration signal processing module, and the first environment data includes a vibration signal from an acceleration sensor and sensing data from an environment sensor.

[0072] The method further includes:

[0073] The vibration signal processing module sends a second wakeup signal to the sensing data processing module when the vibration signal exceeds a first vibration threshold.

[0074] The sensing data processing module determines, based on the sensing data, whether a moving object exists around the vehicle.

[0075] When determining that the moving object exists around the vehicle, the sensing data processing module determines that the first trigger event is detected.

[0076] Before receiving the second wakeup signal, the sensing data processing module is in the sleep state.

[0077] In a possible implementation, the second environment data includes the first environment data and the data processing result obtained based on the first environment data, the first environment data includes the sensing data and the vibration signal, the data processing result includes a possible area in which the moving object is located, and the possible area in which the moving object is located is determined based on the sensing data.

[0078] That the compute unit determines, based on the second environment data, whether to generate the alarm information includes:

[0079] The compute unit determines a target moving object based on the sensing data and the possible area in which the moving object is located.

[0080] The compute unit generates the alarm information when a distance between the target moving object and the vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold.

[0081] The compute unit re-enters the sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold.

[0082] The vibration intensity of the vehicle is determined based on the vibration signal.

[0083] In a possible implementation, that the compute unit determines the target moving object based on the sensing data and the possible area in which the moving object is located includes:

[0084] The compute unit determines, based on the sensing data, an area in which at least one object of interest is located.

[0085] The compute unit determines the target moving object based on the area in which the at least one object of interest is located and the possible area in which the moving object is located.

[0086] The at least one object of interest includes the target moving object, and an overlapping degree between the area in which the target moving object is located and the possible area in which the moving object is located is greater than or equal to a preset overlapping degree threshold.

[0087] In a possible implementation, the alarm information includes a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information.

[0088] When the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity.

[0089] When the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

[0090] In a possible implementation, the method further includes:

[0091] The compute unit sends a third wakeup signal and the alarm information to a control unit. The alarm information includes the target alarm severity.

[0092] The control unit prompts an alarm based on the alarm information.

[0093] In a possible implementation, that the control unit prompts the alarm based on the alarm information includes:

[0094] When the target alarm severity is the first alarm severity, the control unit displays first alarm prompt information via a display device.

[0095] When the target alarm severity is the second alarm severity, the control unit sends second alarm prompt information to a user terminal.

[0096] In a possible implementation, the method further includes:

[0097] The control unit stores video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe control unit stores video / picture data associated with the alarm information, and re-enters the sleep state after storing the video / picture data associated with the alarm information.

[0098] In a possible implementation, the method further includes:

[0099] When the target alarm severity is the first alarm severity, the compute unit displays the first alarm prompt information via the display device.

[00100] When the target alarm severity is the second alarm severity, the compute unit sends the second alarm prompt information to the user terminal.

[00101] In a possible implementation, the method further includes:

[00102] The compute unit stores the video / picture data associated with the alarm information, where the video / picture data is collected by the visual sensor; orthe compute unit stores the video / picture data associated with the alarm information, and re-enters the sleep state after storing the video / picture data associated with the alarm information.

[00103] In a possible implementation, the method further includes:

[00104] The compute unit re-enters the sleep state when not receiving the second environment data from the detection unit within first duration after generating the alarm information.

[00105] For technical effect achieved by the fourth aspect and any possible implementation of the fourth aspect, refer to the descriptions of technical effect corresponding to the first aspect to the third aspect and the corresponding implementations of the first aspect to the third aspect.

[00106] According to a fifth aspect, an embodiment of this application provides an environment detection apparatus. The environment detection apparatus may be a detection unit, and the detection unit includes a module or a unit configured to perform the method according to any one of implementations of the first aspect.

[00107] In a possible design, the detection unit includes:a processing unit, configured to: when a vehicle is in a parking state, obtain first environment data, and perform environment detection based on the first environment data; anda transceiver unit, configured to: when detecting a first trigger event, send a first wakeup signal and second environment data to a compute unit, where the second environment data includes the first environment data and / or a data processing result obtained based on the first environment data.

[00108] When the vehicle is in the parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

[00109] In a possible implementation, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[00110] In a possible implementation, the first environment data includes a vibration signal from an acceleration sensor.

[00111] When performing environment detection based on the first environment data, the processing unit is configured to:when the vibration signal exceeds a first vibration threshold, determine that the first trigger event is detected.

[00112] In a possible implementation, the first environment data includes sensing data from an environment sensor.

[00113] When performing environment detection based on the first environment data, the processing unit is configured to:determine, based on the sensing data, whether a moving object exists around the vehicle; andwhen determining that the moving object exists around the vehicle, determine that the first trigger event is detected.

[00114] In a possible implementation, the processing unit includes a sensing data processing module and a vibration signal processing module, and the first environment data includes a vibration signal from an acceleration sensor and sensing data from an environment sensor.

[00115] When environment detection is performed based on the first environment data,the vibration signal processing module is configured to send a second wakeup signal to the sensing data processing module when detecting that the vibration signal exceeds a first vibration threshold;the sensing data processing module is configured to determine, based on the sensing data, whether a moving object exists around the vehicle; andthe sensing data processing module is configured to: when determining that the moving object exists around the vehicle, determine that the first trigger event is detected.

[00116] Before receiving the second wakeup signal, the sensing data processing module is in the sleep state.

[00117] According to a sixth aspect, an embodiment of this application provides an environment detection apparatus. The environment detection apparatus may be a compute unit, and the compute unit includes a module or a unit configured to perform the method according to any one of implementations of the second aspect.

[00118] In a possible design, the compute unit includes:a transceiver unit, configured to receive a first wakeup signal and second environment data from a detection unit, where the second environment data includes first environment data and / or a data processing result obtained based on the first environment data; anda processing unit, configured to determine, based on the second environment data, whether to generate alarm information.

[00119] When a vehicle is in a parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

[00120] In a possible implementation, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[00121] In a possible implementation, the second environment data includes the first environment data and the data processing result obtained based on the first environment data, the first environment data includes sensing data and a vibration signal, the data processing result includes a possible area in which the moving object is located, and the possible area in which the moving object is located is determined based on the sensing data.

[00122] When determining, based on the second environment data, whether to generate the alarm information, the processing unit is configured to:determine a target moving object based on the sensing data and the possible area in which the moving object is located;generate the alarm information when a distance between the target moving object and the vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold; andre-enter the sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold.

[00123] The vibration intensity of the vehicle is determined based on the vibration signal.

[00124] In a possible implementation, when determining the target moving object based on the sensing data and the possible area in which the moving object is located, the processing unit is configured to:determine, based on the sensing data, an area in which at least one object of interest is located; anddetermine the target moving object based on the area in which the at least one object of interest is located and the possible area in which the moving object is located.

[00125] The at least one object of interest includes the target moving object, and an overlapping degree between the area in which the target moving object is located and the possible area in which the moving object is located is greater than or equal to a preset overlapping degree threshold.

[00126] In a possible implementation, the alarm information includes a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information.

[00127] When the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity.

[00128] When the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

[00129] In a possible implementation, the transceiver unit is configured to:send a third wakeup signal and the alarm information to a control unit. The alarm information includes the target alarm severity.

[00130] In a possible implementation, the processing unit is configured to:when the target alarm severity is the first alarm severity, display first alarm prompt information via a display device; andwhen the target alarm severity is the second alarm severity, send second alarm prompt information to a user terminal.

[00131] In a possible implementation, the apparatus further includes a storage unit.

[00132] The storage unit is configured to store video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe storage unit is configured to store video / picture data associated with the alarm information.

[00133] The processing unit is configured to re-enter the sleep state after the storage unit stores the video / picture data associated with the alarm information.

[00134] In a possible implementation, the processing unit is configured to:re-enter the sleep state when not receiving the second environment data from the detection unit within first duration after generating the alarm information.

[00135] According to a seventh aspect, an embodiment of this application provides an environment detection apparatus. The environment detection apparatus may be a control unit, and the control unit includes a module or a unit configured to perform the method according to any one of implementations of the third aspect.

[00136] In a possible design, the control unit includes:a transceiver unit, configured to receive a third wakeup signal and alarm information from a compute unit, where the alarm information includes a target alarm severity; anda processing unit, configured to prompt an alarm based on the alarm information.

[00137] In a possible implementation, when the control unit prompts the alarm based on the alarm information, the processing unit is configured to:when the target alarm severity is a first alarm severity, display first alarm prompt information via a display device; andwhen the target alarm severity is a second alarm severity, send second alarm prompt information to a user terminal.

[00138] In a possible implementation, the apparatus further includes a storage unit.

[00139] The storage unit is configured to store video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe storage unit is configured to store video / picture data associated with the alarm information.

[00140] The processing unit is configured to re-enter a sleep state after the storage unit stores the video / picture data associated with the alarm information.

[00141] For technical effect achieved by the fifth aspect to the seventh aspect and any possible implementation of the fifth aspect to the seventh aspect, refer to the descriptions of technical effect corresponding to the first aspect to the third aspect and the corresponding implementations of the first aspect to the third aspect.

[00142] Optionally, in the environment detection apparatus according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect,in a design, the environment detection apparatus is the detection unit, or the compute unit, or the control unit. When the environment detection apparatus is the detection unit, or the compute unit, or the control unit, the transceiver unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[00143] In another design, the environment detection apparatus is a chip (system) or a circuit used for the detection unit, or the compute unit, or the control unit. When the environment detection apparatus is the chip (system) or the circuit used for the detection unit, or the compute unit, or the control unit, the transceiver unit may be a communication interface (input / output interface), an interface circuit, an output circuit, an input circuit, a pin, a related circuit, or the like in the chip (system) or the circuit; and the processing unit may be at least one processor, a processing circuit, a logic circuit, or the like.

[00144] According to an eighth aspect, an embodiment of this application provides an environment detection apparatus. The environment detection apparatus includes a processor. The processor is coupled to a memory, and may be configured to execute instructions in the memory, to implement the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect. Optionally, the environment detection apparatus further includes the memory. Optionally, the environment detection apparatus further includes a communication interface, and the processor is coupled to the communication interface.

[00145] According to a ninth aspect, an embodiment of this application provides an environment detection apparatus, including a logic circuit and a communication interface. The communication interface is configured to receive information or send information. The logic circuit is configured to receive information or send information through the communication interface, so that the environment detection apparatus performs the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect.

[00146] According to a tenth aspect, an embodiment of this application provides a computer-readable storage medium. The computer-readable storage medium is configured to store a computer program (which may also be referred to as code or instructions). When the computer program is run on a computer, the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect is implemented.

[00147] According to an eleventh aspect, an embodiment of this application provides a computer program product. The computer program product includes a computer program (which may also be referred to as code or instructions). When the computer program is run, a computer is enabled to perform the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect.

[00148] According to a twelfth aspect, an embodiment of this application provides a chip. The chip includes a processor. The processor is configured to execute instructions. When the processor executes the instructions, the chip is enabled to perform the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect. Optionally, the chip further includes a communication interface, and the communication interface is configured to: receive a signal or send a signal.

[00149] According to a thirteenth aspect, an embodiment of this application provides a vehicle. The vehicle includes at least one detection unit according to the fifth aspect, or the compute unit according to the sixth aspect, or the control unit according to the seventh aspect.

[00150] According to a fourteenth aspect, an embodiment of this application provides a system. The system includes a detection unit and a compute unit. The detection unit is configured to perform the method according to any one of the first aspect and the possible implementations of the first aspect, and the compute unit is configured to perform the method according to any one of the second aspect and the possible implementations of the second aspect. Optionally, the system may further include a control unit, and the control unit is configured to perform the method according to any one of the third aspect and the possible implementations of the third aspect.

[00151] In addition, in a process of performing the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect, a process of sending information and / or receiving information in the foregoing method may be understood as a process in which a processor outputs information, and / or a process in which the processor receives input information. When outputting the information, the processor may output the information to a transceiver (or a communication interface or a sending module), so that the transceiver transmits the information. After the information is output by the processor, other processing may further need to be performed on the information before the information arrives at the transceiver. Similarly, when the processor receives the input information, the transceiver (or the communication interface or the sending module) receives the information, and inputs the information into the processor. Further, after the transceiver receives the information, other processing may need to be performed on the information before the information is input into the processor.

[00152] According to the foregoing principle, for example, sending the information in the foregoing method may be understood as outputting the information by the processor. For another example, receiving the information may be understood as receiving the input information by the processor.

[00153] Optionally, operations such as transmission, sending, and receiving related to the processor may be more generally understood as operations such as output, receiving, and input of the processor, unless otherwise specified, or provided that the operations do not contradict actual functions or internal logic of the operations in related descriptions.

[00154] Optionally, in a process of performing the method according to any one of the first aspect to the third aspect and the possible implementations of the first aspect to the third aspect, the processor may be a processor specially configured to perform these methods, or may be a processor, for example, a general-purpose processor, that performs these methods by executing computer instructions in a memory. The memory may be a non-transitory (non-transitory) memory, for example, a read-only memory (read-only memory, ROM). The memory and the processor may be integrated on a same chip, or may be separately disposed on different chips. A type of the memory and a manner of disposing the memory and the processor are not limited in embodiments of this application.

[00155] In a possible implementation, at least one memory is located outside an apparatus.

[00156] In another possible implementation, at least one memory is located inside an apparatus.

[00157] In still another possible implementation, some memories in at least one memory are located inside an apparatus, and the other memories are located outside the apparatus.

[00158] In this application, the processor and the memory may alternatively be integrated into one device. In other words, the processor and the memory may alternatively be integrated together.BRIEF DESCRIPTION OF DRAWINGS

[00159] FIG. 1 is a diagram of a system architecture to which an embodiment of this application is applicable;

[00160] FIG. 2 is a diagram of another system architecture to which an embodiment of this application is applicable;

[00161] FIG. 3 is a schematic flowchart of an environment detection method according to an embodiment of this application;

[00162] FIG. 4 is a diagram of a target moving object according to an embodiment of this application;

[00163] FIG. 5A and FIG. 5B is a diagram of an environment detection process according to an embodiment of this application;

[00164] FIG. 6A and FIG. 6B is another diagram of an environment detection process according to an embodiment of this application;

[00165] FIG. 7 is another schematic flowchart of an environment detection method according to an embodiment of this application;

[00166] FIG. 8 is a diagram of a structure of an environment detection apparatus according to an embodiment of this application;

[00167] FIG. 9 is a diagram of a structure of another environment detection apparatus according to an embodiment of this application; and

[00168] FIG. 10 is a diagram of a structure of a chip according to an embodiment of this application.DESCRIPTION OF EMBODIMENTS

[00169] The following describes embodiments of this application with reference to the accompanying drawings in embodiments of this application. It should be noted that in this application, terms such as "example" or "for example" represent giving an example, an illustration, or a description. Any embodiment or design scheme described as an "example" or "for example" in this application should not be construed as being more preferred or having more advantages than another embodiment or design scheme. Exactly, use of the word like "example" or "for example" is intended to present a related concept in a specific manner.

[00170] In embodiments of this application, "at least one" means one or more, and "a plurality of" means two or more. "At least one of the following items (pieces)" or a similar expression thereof indicates any combination of these items, including a single item (piece) or any combination of a plurality of items (pieces). For example, at least one item (piece) of a, b, or c may indicate: a, b, c, (a and b), (a and c), (b and c), or (a, b, and c), where a, b, and c may be singular or plural. The term "and / or" describes an association relationship between associated objects, and indicates that three relationships may exist. For example, A and / or B may indicate the following three cases: Only A exists, both A and B exist, and only B exists, where A and B may be singular or plural. The character " / " generally indicates an "or" relationship between the associated objects.

[00171] In addition, unless otherwise stated, ordinal numbers such as "first" and "second" in embodiments of this application are for differentiation between a plurality of objects, but are not intended to limit an order, a time sequence, priorities, or importance degrees of the plurality of objects. For example, a first message and a second message are merely used to distinguish between different message types, but do not indicate different structures, importance degrees, or the like of the two messages.

[00172] Some terms in this application are first described, to help a person skilled in the art have a better understanding.

[00173] 1. Safety guard function

[00174] The safety guard function is a function that detects a safety status of a vehicle via an onboard sensor when the vehicle is parked and that notifies a vehicle owner and records related environment information when determining potential threats such as damage or intrusion.

[00175] 2. Sensor

[00176] Sensors in embodiments of this application include an acceleration sensor (or referred to as a vibration sensor, a vibrating sensor, or the like) and environment sensors. The environment sensors may include a visual sensor, a radar sensor, and / or the like, which are not limited. For example, the visual sensor includes a fisheye camera, an eagle eye camera, a monocular camera, a binocular camera, a four-channel camera, and the like. This is not limited herein. The radar sensor may include radio detection and ranging (radio detection and ranging, Radar), light detection and ranging (light detection and ranging, LiDAR), a millimeter-wave radar, an ultrasonic radar, and the like. This is not limited herein.

[00177] In real life, after a driver parks and leaves a vehicle, sometimes there may be instances of scratches or collisions occurring on the vehicle. A safety guard function is introduced to meet a requirement of vehicle safety detecting after the driver leaves the vehicle. With the safety guard function enabled, onboard sensors detect a safety status of the vehicle, generate warnings when predefined events occur, and record sensed data. This helps vehicle owners protect their rights and interests, and reduce their losses. In related technologies, intelligent driving (intelligent driving domain for short) sensors and analysis capabilities are usually used to implement the safety guard function. Because an intelligent driving algorithm module is reused, the intelligent driving algorithm module needs to be run when the safety guard function is run. Consequently, computational power consumption is high, and power consumption is also high. How to design a solution with low power consumption and high detection accuracy becomes a problem to be urgently resolved currently.

[00178] In view of this, this application provides an environment detection method, to reduce vehicle power consumption and facilitate improvement of user experience.

[00179] For example, FIG. 1 is a diagram of a system architecture to which an embodiment of this application is applicable. As shown in FIG. 1, the system includes a mobile data center (mobile data center, MDC) and a cockpit domain controller (cockpit domain controller, CDC). The MDC includes a four-channel camera, an ultrasonic radar, an acceleration sensor, a microcontroller unit (microcontroller unit, MCU), a system on chip (system on chip, SoC), and the like. The SoC is connected to the four-channel camera, the acceleration sensor and the ultrasonic radar are connected to the MCU, and the MCU is connected to the SoC. Through deployment of lightweight vibration detection and radar detection algorithms on the MCU, high-power-consumption components such as the SoC and the CDC do not need to be always on during running of a safety guard function. Specifically, the MCU may be always on, and receive vibration information collected by the acceleration sensor to perform vibration detection, or receive a radar signal collected by the radar to perform radar detection. If the MCU identifies vibration that may cause a threat to the vehicle or an object near the vehicle, the MCU wakes up the SoC to perform detection with higher precision. After the SoC is woken up, the SoC receives a video data stream collected by the four-channel camera and vibration and radar detection information provided by the MCU. After the video data stream and the vibration and radar detection information are processed according to algorithms such as a motion frame detection algorithm, a radar detection algorithm, a vibration detection algorithm, and a person-vehicle artificial intelligence (artificial intelligence, AI) detection algorithm, the SoC determines whether a dangerous event occurs. If it is determined that an event that causes damage to the vehicle occurs, alarm information is sent to the CDC. In addition, the CDC may flush a video corresponding to the dangerous event to a disk. It should be understood that the lightweight vibration detection and radar detection algorithms are deployed on the MCU, and the MCU is powered by a small battery (for example, 20 Ah).

[00180] For another example, FIG. 2 is a diagram of another system architecture to which an embodiment of this application is applicable. As shown in FIG. 2, the system includes a four-channel camera, an ultrasonic radar, an acceleration sensor, automatic parking assist (automatic parking assist, APA), an MCU, and a CDC. The APA is connected to the four-channel camera and the ultrasonic radar, the acceleration sensor is connected to the MCU, and both the APA and the MCU are connected to the CDC. Through deployment of a lightweight vibration detection algorithm on the MCU and lightweight visual detection and radar detection algorithms on the APA, a high-power-consumption component such as the CDC does not need to be always on during running of a safety guard function. Specifically, the MCU is always on to obtain and detect a vibration signal collected by the acceleration sensor, and if detecting vibration that may cause a threat to a vehicle, wakes up the CDC to perform further detection with higher precision. In addition, the APA may also perform detection based on sensing data collected by the ultrasonic radar and the four-channel camera. When detecting that there is an approaching object around the vehicle, the APA may also wake up the CDC to perform further detection with higher precision. After the CDC is woken up, the CDC can perform motion frame detection, radar detection, vibration detection, person-vehicle AI detection, and the like on data from the MCU and the APA based on a visual system; use a converged processing system to comprehensively determine a detection result of the visual system; if determining that an event that causes damage to the vehicle occurs, trigger a highlight alarm on a display and remotely pushes the alarm to a user's mobile phone, and finally flush a valid video to a disk of a storage system. It should be understood that both the APA and the MCU may operate independently. Algorithms such as the lightweight visual detection and radar detection algorithms are deployed on the APA, and an algorithm such as the lightweight vibration detection algorithm is deployed on the MCU. Power is supplied by a small battery (for example, 20 Ah).

[00181] It should be noted that "parking" mentioned in this application means that the vehicle stops and is shifted into park. Optionally, parking may also be referred to as stopping sometimes. This is not limited in this application. In addition, being in a powered state may also be understood as being in an operating state.

[00182] The following describes in detail the environment detection method and a related apparatus provided in this application.

[00183] FIG. 3 is a schematic flowchart of an environment detection method according to an embodiment of this application. As shown in FIG. 3, the environment detection method includes the following steps S301 to S303. The method shown in FIG. 3 may be performed by a vehicle, or the method shown in FIG. 3 may be performed by a chip, an in-vehicle component, or the like that is deployed with detection software in the vehicle. For example, the detection software may be deployed in an in-vehicle component (or a chip) such as a CDC, an MDC, an APA, or an MCU of the vehicle. This is not limited in this application. For ease of description, in FIG. 3, an example in which the in-vehicle component deployed with the detection software in the vehicle performs the method is mainly used for description. Specifically, the vehicle component may be a detection unit, a compute unit, a control unit, or the like. It should be noted that FIG. 3 is a schematic flowchart of a method embodiment of this application, and shows detailed communication steps or operations of the method. However, these steps or operations are merely examples. Variants of various operations in FIG. 3 or other operations may be further performed in embodiments of this application. In addition, the steps in FIG. 3 may be separately performed in a sequence different from that shown in FIG. 3, and possibly, not all the operations in FIG. 3 need to be performed.

[00184] S301: When the vehicle is in a parking state, the detection unit obtains first environment data, and performs environment detection based on the first environment data.

[00185] In some feasible implementations, when the vehicle is in the parking state, a sensor deployed on the vehicle continuously collects the first environment data around the vehicle, and sends the collected first environment data to the detection unit. Correspondingly, after receiving the first environment data from the sensor, the detection unit may perform environment detection based on the obtained first environment data. When the vehicle is in the parking state, the detection unit is in a powered state, and before receiving a first wakeup signal, the compute unit is in a sleep state. In addition, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[00186] In a possible implementation (1), if the system architecture shown in FIG. 1 is used, the detection unit may be specifically the MCU, and sensors connected to the MCU may include an acceleration sensor and a radar sensor, that is, the acceleration sensor and the radar sensor are communicatively connected to the MCU. First environment data collected by the acceleration sensor is a vibration signal, and first environment data collected by the radar sensor is a radar signal. The MCU may determine, based on the vibration signal, whether the vehicle generates abnormal vibration, or may determine, based on the radar signal, whether a moving object exists around the vehicle. Specifically, when vibration intensity indicated by the vibration signal is not less than a first vibration threshold, it may be determined that the vehicle generates the abnormal vibration; or when vibration intensity indicated by the vibration signal is less than a first vibration threshold, it may be determined that the vehicle does not generate the abnormal vibration. It is determined, through radar detection, whether the object approaches the vehicle. For example, when it is determined, based on the radar signal, that a distance between the moving object and the vehicle is less than or equal to a distance threshold (referred to as a first distance threshold below for ease of differentiation), it may be determined that the moving object exists around the vehicle; or when a distance between the moving object and the vehicle is greater than a first distance threshold, it may be determined that no moving object exists around the vehicle. It should be understood that a branch to which the case of "equal to" in embodiments of this application belongs may be determined based on an actual case, and is not limited.

[00187] Generally, if the MCU detects the abnormal vibration and / or detects that the moving object approaches the vehicle, it is considered that a first trigger event is detected. For example, the moving object may be a person, a motor vehicle, a non-motor vehicle, or the like that is in a moving state. This is not limited.

[00188] In a possible implementation (2), if the system architecture shown in FIG. 2 is used, the detection unit may specifically include the MCU and / or the APA. A sensor connected to the MCU may be an acceleration sensor, and a sensor connected to the APA may include an environment sensor. The environment sensor herein may be specifically a visual sensor and / or a radar sensor. For ease of description, an example in which environment sensors include the visual sensor and the radar sensor is used for description below. First environment data collected by the acceleration sensor is a vibration signal, and first environment data collected by the environment sensor is sensing data. For example, both video / picture data collected by the visual sensor and a radar signal collected by the radar sensor may be understood as sensing data. The MCU may determine, based on the vibration signal, whether the vehicle generates abnormal vibration, and the APA may determine, based on the radar signal or the video / picture data, whether a moving object exists around the vehicle. Specifically, the APA may process the radar signal or the video / picture data according to a motion detection algorithm, to determine whether the moving object exists around the vehicle.

[00189] S302: When detecting the first trigger event, the detection unit sends the first wakeup signal and second environment data to the compute unit. Correspondingly, the compute unit receives the first wakeup signal and the second environment data from the detection unit.

[00190] In some feasible implementations, the detection unit may determine, by performing environment detection on the first environment data, whether the first trigger event exists. Generally, when it is determined that the vehicle generates the abnormal vibration and / or that the moving object exists around the vehicle, it may be determined that the first trigger event is detected. Therefore, the detection unit wakes up the calculation unit, and sends the second environment data to the calculation unit. The second environment data includes the first environment data and / or a data processing result obtained based on the first environment data. It should be understood that the first wakeup signal and the second environment data may be sent to the calculation unit together, or may be separately sent to the calculation unit. This is not limited in this application. Correspondingly, for the calculation unit, the first wakeup signal and the second environment data may be received at a time, or may be received separately. This is not limited in this application. In addition, for a compute device, the compute device usually needs to be first woken up, and receives the second environment data.

[00191] For example, the first environment data included in the second environment data may be the sensing data (for example, one or more of the video / picture data or the radar signal) and the vibration signal, and the data processing result includes a possible area in which the moving object is located. The possible area in which the moving object is located may be determined based on the sensing data. For example, the detection unit may process the video / picture data according to a motion frame detection algorithm, to determine the possible area in which the moving object is located. For another example, the detection unit may process the radar signal according to a radar detection algorithm, to determine the possible area in which the moving object is located. For another example, the detection unit may also determine, as the possible area in which the moving object is located, a union set area of a possible area determined based on the video / picture data and a possible area determined based on the radar signal. This is not limited in this application.

[00192] In the possible implementation (1), if the system architecture shown in FIG. 1 is used, the compute unit may be the SoC. In other words, when the MCU detects that the vehicle generates the abnormal vibration or the moving object exists around the vehicle, the MCU can wake up the SoC, and send the second environment data to the SoC. For example, the second environment data may include the vibration signal.

[00193] In the possible implementation (2), if the system architecture shown in FIG. 2 is used, the compute unit may be the CDC. In other words, when the MCU detects that the vehicle generates the abnormal vibration or the APA detects that the moving object exists around the vehicle, the MCU or the APA can wake up the CDC, and send the second environment data to the CDC. For example, the second environment data may include the video / picture data, the vibration signal, the possible area in which the moving object is located, and the like.

[00194] S303: The compute unit determines, based on the second environment data, whether to generate alarm information.

[00195] As described above, the second environment data includes the first environment data and the data processing result obtained based on the first environment data. The first environment data includes the sensing data (for example, the video / picture data and the radar signal) and the vibration signal, and the data processing result includes the possible area in which the moving object is located. In some feasible implementations, the compute unit may process the video / picture data according to an AI detection algorithm, to determine whether an object of interest exists. When the compute unit does not detect any object of interest, the compute unit may re-enter the sleep state. When the compute unit detects at least one object of interest, the compute unit may further determine a target moving object based on an area in which the at least one object of interest is located and the possible area in which the moving object is located. Specifically, when an overlapping degree between an area in which an object of interest is located and the possible area in which the moving object is located is greater than or equal to a preset overlapping degree threshold, the object of interest may be considered as the target moving object. The object of interest may be a person, a motor vehicle, a non-motor vehicle, or the like. This is not limited in this application.

[00196] For example, FIG. 4 is a diagram of a target moving object according to an embodiment of this application. As shown in FIG. 4, video / picture data is processed according to an AI detection algorithm, and four objects of interest may be detected: an object of interest 1, an object of interest 2, an object of interest 3, and an object of interest 4. Because overlapping degrees between a possible area in which a moving object is located and areas in which the object of interest 1, the object of interest 2, and the object of interest 3 are located are all less than a preset overlapping degree threshold, and an overlapping degree between an area in which the object of interest 4 is located and the possible area in which the moving object is located is greater than the preset overlapping degree threshold, the object of interest 4 is the target moving object.

[00197] It may be understood that the compute unit may generate alarm information when a distance between the target moving object and a vehicle is less than or equal to a distance threshold (referred to as a second distance threshold below for ease of differentiation), and / or when vibration intensity of the vehicle indicated by a vibration signal is greater than or equal to a second vibration threshold. The compute unit re-enters a sleep state when the distance between the target moving object and the vehicle is greater than the second distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold. Generally, a first distance threshold is greater than the second distance threshold, and a first vibration threshold is less than the second vibration threshold.

[00198] Optionally, the alarm information may include a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information. For example, the plurality of alarm severities include a first alarm severity and a second alarm severity, where the first alarm severity is lower than the second alarm severity. Specifically, when the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is the first alarm severity. When the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is the second alarm severity.

[00199] In the possible implementation (1), if the system architecture shown in FIG. 1 is used, the compute unit may be the SoC. In other words, when the MCU detects that the vehicle generates abnormal vibration, and / or the moving object exists around the vehicle, the MCU can wake up the SoC. After the SoC is woken up, the SoC may generate the alarm information based on second environment data. Optionally, the SoC may further wake up a control unit (for example, the control unit may be a CDC), and send the alarm information to the CDC. For example, the SoC may send a third wakeup signal to the CDC, to wake up the CDC. After receiving the alarm information, the CDC can prompt an alarm based on the alarm information. For example, when the target alarm severity is the first alarm severity, the CDC may display first alarm prompt information via an in-vehicle display device, for example, highlight the prompt on an in-vehicle screen. When the target alarm severity is the second alarm severity, the CDC may send second alarm prompt information to a user terminal. Optionally, the CDC may further push corresponding video / picture data to the user terminal, so that a user can view a vehicle status in time. In addition, the CDC may further store the video / picture data associated with the alarm information (or referred to as flushing the video / picture data associated with the alarm information to a disk). The video / picture data associated with the alarm information herein may be understood as all video / picture data that triggers generation of the alarm information. Optionally, after the CDC stores the video / picture data associated with the alarm information, the CDC may enter the sleep state. Optionally, if the SoC does not receive new second environment data within first duration after generating the alarm information, the SoC enters the sleep state.

[00200] For example, for an implementation process of the foregoing implementation (1), refer to a procedure shown in FIG. 5A and FIG. 5B. S1: When the vehicle is in a parking state, obtain the vibration signal to perform vibration detection, and obtain a radar signal to perform radar detection. S2: When detecting a first trigger event, the MCU sends a first wakeup signal and the second environment data to the SoC. S3: The SoC determines, based on the second environment data, whether to generate the alarm information. The following three branches are included: Branch 1: When the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, but the vibration intensity is less than the second vibration threshold, generate alarm information including the first alarm severity. Branch 2: When the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, and the vibration intensity is greater than or equal to the second vibration threshold, generate alarm information including the second alarm severity. Branch 3: When the distance between the target moving object and the vehicle is greater than the second distance threshold, and the vibration intensity is less than the second vibration threshold, the SoC enters the sleep state. S4: When generating the alarm information, the SoC sends the alarm information to the CDC. S5: The CDC gives a corresponding warning based on the alarm severity, and flushes the video / picture data to the disk. S6: The SoC enters the sleep state. Generally, if the SoC does not receive the new second environment data within the first duration after generating the alarm information, the SoC enters the sleep state. S7: The CDC enters the sleep state. Generally, after the CDC stores the video / picture data associated with the alarm information, the CDC may enter the sleep state.

[00201] In the possible implementation (2), if the system architecture shown in FIG. 2 is used, the compute unit may be the CDC. In other words, when the MCU detects that the vehicle generates abnormal vibration, or the APA detects that the moving object exists around the vehicle, the MCU or the APA can wake up the CDC. After being woken up, the CDC may generate the alarm information based on second environment data, and prompt an alarm based on the alarm information. For example, when the target alarm severity is the first alarm severity, the CDC may display first alarm prompt information via an in-vehicle display device, for example, highlight the prompt on an in-vehicle screen. When the target alarm severity is the second alarm severity, the CDC may send second alarm prompt information to a user terminal. Optionally, the CDC may further push corresponding video / picture data to the user terminal, so that a user can view a vehicle status in time. In addition, the CDC may further store the video / picture data associated with the alarm information. Optionally, after the CDC stores the video / picture data associated with the alarm information, the CDC may re-enter the sleep state, or if the CDC does not receive new second environment data within first duration after generating the alarm information, the CDC enters the sleep state.

[00202] For example, for an implementation process of the foregoing implementation (2), refer to a procedure shown in FIG. 6A and FIG. 6B. S1: When the vehicle is in a parking state, the MCU obtains the vibration signal to perform vibration detection (or, S1': When the vehicle is in the parking state, the APA obtains the radar signal to perform radar detection, or the APA obtains the video / picture data to perform picture detection). S2: When detecting the abnormal vibration, the MCU sends a first wakeup signal and the second environment data to the CDC (or, S2': When detecting that the moving object exists around the vehicle, the APA sends the first wakeup signal and the second environment data to the CDC). S3: The CDC determines, based on the second environment data, whether to generate the alarm information. The following three branches are included: Branch 1: When the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, but the vibration intensity is less than the second vibration threshold, generate alarm information including the first alarm severity. Branch 2: When the distance between the target moving object and the vehicle is less than or equal to the second distance threshold, and the vibration intensity is greater than or equal to the second vibration threshold, generate alarm information including the second alarm severity. Branch 3: The CDC enters the sleep state when the distance between the target moving object and the vehicle is greater than the second distance threshold, and the vibration intensity is less than the second vibration threshold. S4: The CDC gives a corresponding warning based on the alarm severity, and flushes the video / picture data to the disk. S5: The CDC enters the sleep state. Generally, after the CDC stores the video / picture data associated with the alarm information, the CDC may re-enter the sleep state, or if the CDC does not receive the new second environment data within the first duration after generating the alarm information, the CDC enters the sleep state.

[00203] In this embodiment of this application, a lightweight vibration detection algorithm or lightweight visual detection and radar detection algorithms are moved to a detection unit (for example, the MCU or the APA) with low power consumption, and a small battery supplies power. The compute unit (for example, the SoC or the CDC) is woken up only when necessary, to run a full detection algorithm, so that the power consumption can be reduced while ensuring detection effect to be accurate.

[00204] FIG. 7 is another schematic flowchart of an environment detection method according to an embodiment of this application. As shown in FIG. 7, the environment detection method includes the following steps S701 to S705. The method shown in FIG. 7 may be performed by a vehicle, or the method shown in FIG. 7 may be performed by a chip, an in-vehicle component, or the like that is deployed with detection software in the vehicle. For example, the detection software may be deployed in an in-vehicle component (or a chip) such as a CDC, an MDC, an APA, or an MCU of the vehicle. This is not limited in this application. For ease of description, in FIG. 7, an example in which in-vehicle components deployed with the detection software in the vehicle perform the method is mainly used for description. Specifically, the vehicle components may be a sensing data processing module, a vibration signal processing module, and a compute unit. It should be understood that, if the system architecture shown in FIG. 2 is used, the vibration signal processing module may be the MCU, the sensing data processing module may be the APA, and the compute unit may be the CDC. This embodiment is mainly described based on the architecture shown in FIG. 2. It should be noted that FIG. 7 is a schematic flowchart of a method embodiment of this application, and shows detailed communication steps or operations of the method. However, these steps or operations are merely examples. Variants of various operations in FIG. 7 or other operations may be further performed in embodiments of this application. In addition, the steps in FIG. 7 may be separately performed in a sequence different from that shown in FIG. 7, and possibly, not all the operations in FIG. 7 need to be performed.

[00205] S701: The MCU determines, based on a vibration signal and a first vibration threshold, whether the vehicle generates abnormal vibration.

[00206] In some feasible implementations, a sensor connected to the MCU may be an acceleration sensor. First environment data collected by the acceleration sensor is the vibration signal, and the MCU may determine, based on the vibration signal from the acceleration sensor and the first vibration threshold, whether the vehicle generates the abnormal vibration. Specifically, when vibration intensity indicated by the vibration signal is not less than the first vibration threshold, the MCU may determine that the vehicle generates the abnormal vibration; or when vibration intensity indicated by the vibration signal is less than the first vibration threshold, the MCU may determine that the vehicle does not generate the abnormal vibration.

[00207] S702: When determining that the vehicle generates the abnormal vibration, the MCU sends a second wakeup signal to the APA. Correspondingly, the APA receives the second wakeup signal from the MCU.

[00208] In some feasible implementations, a sensor connected to the APA may include an environment sensor. The environment sensor herein may be specifically a visual sensor and / or a radar sensor. For ease of description, an example in which environment sensors include the visual sensor and the radar sensor is used for description below. First environment data collected by the environment sensor is sensing data. For example, both video / picture data collected by the visual sensor and a radar signal collected by the radar sensor may be understood as sensing data.

[00209] It should be noted that when the MCU determines that the vehicle generates the abnormal vibration, the MCU can wake up the APA.

[00210] S703: When determining, based on the sensing data, that a moving object exists around the vehicle, the APA determines that a first trigger event is detected.

[00211] It should be understood that, after the APA is woken up by the MCU, the APA may determine, based on the radar signal or the video / picture data, whether the moving object exists around the vehicle. For example, when it is determined, based on the radar signal, that a distance between the moving object and the vehicle is less than or equal to a distance threshold (referred to as a first distance threshold below for ease of differentiation), it may be determined that the moving object exists around the vehicle; or when a distance between the moving object and the vehicle is greater than a first distance threshold, it may be determined that no moving object exists around the vehicle. Generally, when the moving object exists around the vehicle, it may be considered that the first trigger event is detected.

[00212] S704: When detecting the first trigger event, the APA sends a first wakeup signal and second environment data to the CDC. Correspondingly, the CDC receives the first wakeup signal and the second environment data from the APA.

[00213] In some feasible implementations, when detecting the first trigger event, the APA can wake up the CDC, and send the second environment data to the CDC.

[00214] S705: The CDC determines, based on the second environment data, whether to generate alarm information.

[00215] For implementation of determining, by the CDC based on the second environment data, whether to generate the alarm information, refer to related descriptions in step S303 in the embodiment corresponding to FIG. 3. Details are not described herein again.

[00216] In this embodiment of this application, after detecting the vibration, the MCU wakes up the APA to perform detection through vision and a radar, and finally enables the CDC. This hierarchical wakeup manner can further reduce power consumption.

[00217] The foregoing describes in detail the methods provided in embodiments of this application. The following provides an apparatus for implementing any one of the methods in embodiments of this application. For example, an apparatus including a unit (or means) for implementing steps performed by a device in any one of the foregoing methods is provided.

[00218] FIG. 8 is a diagram of a structure of an environment detection apparatus according to an embodiment of this application.

[00219] As shown in FIG. 8, the environment detection apparatus 80 may include a transceiver unit 801 and a processing unit 802. The transceiver unit 801 and the processing unit 802 may be software, hardware, or a combination of software and hardware.

[00220] The transceiver unit 801 may implement a sending function and / or a receiving function, and the transceiver unit 801 may also be described as a transceiver unit. The transceiver unit 801 may alternatively be a unit integrating an obtaining unit (or referred to as a receiving unit) and a sending unit. The obtaining unit is configured to implement a receiving function, and the sending unit is configured to implement a sending function. Optionally, the transceiver unit 801 may be configured to receive information sent by another apparatus, and may be further configured to send information to another apparatus.

[00221] In a possible design, the environment detection apparatus 80 may correspond to the detection unit or the chip in the detection unit in the method embodiment shown in FIG. 3 or FIG. 7. The environment detection apparatus 80 may include units configured to perform the operations performed by the detection unit in the method embodiment shown in FIG. 3 or FIG. 7. In addition, the units in the environment detection apparatus 80 are separately used to implement the operations performed by the detection unit in the method embodiment shown in FIG. 3 or FIG. 7. The units are described as follows.

[00222] The processing unit 802 is configured to: when a vehicle is in a parking state, obtain first environment data, and perform environment detection based on the first environment data.

[00223] The transceiver unit 801 is configured to: when detecting a first trigger event, send a first wakeup signal and second environment data to a compute unit. The second environment data includes the first environment data and / or a data processing result obtained based on the first environment data.

[00224] When the vehicle is in the parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

[00225] In a possible implementation, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[00226] In a possible implementation, the first environment data includes a vibration signal from an acceleration sensor.

[00227] When performing environment detection based on the first environment data, the processing unit 802 is configured to:when detecting that the vibration signal exceeds a first vibration threshold, determine that the first trigger event is detected.

[00228] In a possible implementation, the first environment data includes sensing data from an environment sensor.

[00229] When performing environment detection based on the first environment data, the processing unit 802 is configured to:determine, based on the sensing data, whether a moving object exists around the vehicle; andwhen determining that the moving object exists around the vehicle, determine that the first trigger event is detected.

[00230] In a possible implementation, the processing unit 802 includes a sensing data processing module and a vibration signal processing module, and the first environment data includes a vibration signal from an acceleration sensor and sensing data from an environment sensor.

[00231] When environment detection is performed based on the first environment data,the vibration signal processing module is configured to send a second wakeup signal to the sensing data processing module when detecting that the vibration signal exceeds a first vibration threshold;the sensing data processing module is configured to determine, based on the sensing data, whether a moving object exists around the vehicle; andthe sensing data processing module is configured to: when determining that the moving object exists around the vehicle, determine that the first trigger event is detected.

[00232] Before receiving the second wakeup signal, the sensing data processing module is in the sleep state.

[00233] For technical effect achieved by this design and any possible implementation, refer to descriptions of technical effect corresponding to FIG. 3 or FIG. 7 and corresponding implementations.

[00234] In another possible design of the environment detection apparatus 80 shown in FIG. 8, the environment detection apparatus 80 may correspond to the compute unit in the method embodiment shown in FIG. 3 or FIG. 7. For example, the environment detection apparatus 80 may be the compute unit, or may be the chip in the compute unit. The environment detection apparatus 80 may include units configured to perform the operations performed by the compute unit in the method embodiment shown in FIG. 3 or FIG. 7. In addition, the units in the environment detection apparatus 80 are separately used to implement the operations performed by the compute unit in the method embodiment shown in FIG. 3 or FIG. 7. The units are described as follows.

[00235] The transceiver unit 801 is configured to receive a first wakeup signal and second environment data from a detection unit. The second environment data includes first environment data and / or a data processing result obtained based on the first environment data.

[00236] The processing unit 802 is configured to determine, based on the second environment data, whether to generate alarm information.

[00237] When a vehicle is in a parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

[00238] In a possible implementation, power consumption of the detection unit is lower than power consumption of the compute unit during operation after the compute unit is woken up.

[00239] In a possible implementation, the second environment data includes the first environment data and the data processing result obtained based on the first environment data, the first environment data includes sensing data and a vibration signal, the data processing result includes a possible area in which a moving object is located, and the possible area in which the moving object is located is determined based on the sensing data.

[00240] When determining, based on the second environment data, whether to generate the alarm information, the processing unit 802 is configured to:determine a target moving object based on the sensing data and the possible area in which the moving object is located;generate the alarm information when a distance between the target moving object and the vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold; andre-enter the sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold.

[00241] The vibration intensity of the vehicle is determined based on the vibration signal.

[00242] In a possible implementation, when determining the target moving object based on the sensing data and the possible area in which the moving object is located, the processing unit 802 is configured to:determine, based on the sensing data, an area in which at least one object of interest is located; anddetermine the target moving object based on the area in which the at least one object of interest is located and the possible area in which the moving object is located.

[00243] The at least one object of interest includes the target moving object, and an overlapping degree between the area in which the target moving object is located and the possible area in which the moving object is located is greater than or equal to a preset overlapping degree threshold.

[00244] In a possible implementation, the alarm information includes a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information.

[00245] When the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity.

[00246] When the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

[00247] In a possible implementation, the transceiver unit 801 is configured to:send a third wakeup signal and the alarm information to a control unit. The alarm information includes the target alarm severity.

[00248] In a possible implementation, the processing unit 802 is configured to:when the target alarm severity is the first alarm severity, display first alarm prompt information via a display device; andwhen the target alarm severity is the second alarm severity, send second alarm prompt information to a user terminal.

[00249] In a possible implementation, the apparatus further includes a storage unit 803 (not shown in the figure).

[00250] The storage unit 803 is configured to store video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe storage unit 803 is configured to store video / picture data associated with the alarm information.

[00251] The processing unit 802 is configured to re-enter the sleep state after the storage unit 803 stores the video / picture data associated with the alarm information.

[00252] In a possible implementation, the processing unit 802 is configured to:re-enter the sleep state when not receiving the second environment data from the detection unit within first duration after generating the alarm information.

[00253] For technical effect achieved by this design and any possible implementation, refer to descriptions of technical effect corresponding to FIG. 3 or FIG. 7 and corresponding implementations.

[00254] In still another possible design of the environment detection apparatus 80 shown in FIG. 8, the environment detection apparatus 80 may correspond to the control unit in the method embodiment shown in FIG. 3 or FIG. 7. For example, the environment detection apparatus 80 may be the control unit, or may be the chip in the control unit. The environment detection apparatus 80 may include units configured to perform the operations performed by the control unit in the method embodiment shown in FIG. 3 or FIG. 7. In addition, the units in the environment detection apparatus 80 are separately used to implement the operations performed by the control unit in the method embodiment shown in FIG. 3 or FIG. 7. The units are described as follows.

[00255] The transceiver unit 801 is configured to receive a third wakeup signal and alarm information from a compute unit. The alarm information includes a target alarm severity.

[00256] The processing unit 802 is configured to prompt an alarm based on the alarm information.

[00257] In a possible implementation, when the control unit prompts the alarm based on the alarm information, the processing unit 802 is configured to:when the target alarm severity is a first alarm severity, display first alarm prompt information via a display device; andwhen the target alarm severity is a second alarm severity, send second alarm prompt information to a user terminal.

[00258] In a possible implementation, the apparatus further includes a storage unit 803 (not shown in the figure).

[00259] The storage unit 803 is configured to store video / picture data associated with the alarm information, where the video / picture data is collected by a visual sensor; orthe storage unit 803 is configured to store video / picture data associated with the alarm information.

[00260] The processing unit 802 is configured to re-enter a sleep state after the video / picture data associated with the alarm information is stored.

[00261] For technical effect achieved by this design and any possible implementation, refer to descriptions of technical effect corresponding to FIG. 3 or FIG. 7 and corresponding implementations.

[00262] Optionally, in any possible design of the environment detection apparatus 80 shown in FIG. 8,in an implementation, the environment detection apparatus is the detection unit, or the compute unit, or the control unit. When the environment detection apparatus is the detection unit, or the compute unit, or the control unit, the transceiver unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[00263] In another implementation, the environment detection apparatus is a chip (system) or a circuit used for the detection unit, or the compute unit, or the control unit. When the environment detection apparatus is the chip (system) or the circuit used for the detection unit, or the compute unit, or the control unit, the transceiver unit may be a communication interface (input / output interface), an interface circuit, an output circuit, an input circuit, a pin, a related circuit, or the like in the chip (system) or the circuit; and the processing unit may be at least one processor, a processing circuit, a logic circuit, or the like.

[00264] According to this embodiment of this application, the units in the apparatus shown in FIG. 8 may be separately or all combined into one or more other units, or a specific unit (or some specific units) in the apparatus may be further split into a plurality of units with more detailed functions. This can implement a same operation without affecting implementation of the technical effect of this embodiment of this application. The foregoing units are obtained through division based on logical functions. During actual application, a function of one unit may be implemented by a plurality of units, or functions of a plurality of units are implemented by one unit. In another embodiment of this application, an electronic device may further include another unit. During actual application, the functions may alternatively be implemented with assistance of the another unit, and may be implemented by a plurality of units in collaboration.

[00265] It should be noted that, for implementations of the units, reference may be further made to corresponding descriptions in the method embodiment shown in FIG. 3 or FIG. 7.

[00266] In the environment detection apparatus 80 described in FIG. 8, a lightweight vibration detection algorithm or lightweight visual detection and radar detection algorithms are moved to the detection unit (for example, an MCU or an APA) with low power consumption, and a small battery supplies power. The compute unit (for example, a SoC or a CDC) is woken up only when necessary, to run a full detection algorithm, so that the power consumption can be reduced while ensuring detection effect to be accurate.

[00267] FIG. 9 is a diagram of a structure of an environment detection apparatus according to an embodiment of this application.

[00268] It should be understood that the environment detection apparatus 90 shown in FIG. 9 is merely an example. The environment detection apparatus in this embodiment of this application may further include another component, or a component with a function similar to that of each component in FIG. 9, or does not necessarily need to include all components in FIG. 9.

[00269] The environment detection apparatus 90 includes a communication interface 901 and at least one processor 902.

[00270] The environment detection apparatus 90 may correspond to any device in a detection unit, or a compute unit, or a control unit deployed with detection software. The communication interface 901 is configured to receive and send signals. The at least one processor 902 executes program instructions, so that the environment detection apparatus 90 implements a corresponding procedure of the method performed by a corresponding device in the method embodiment in FIG. 3 or FIG. 7.

[00271] In the environment detection apparatus 90 described in FIG. 9, a lightweight vibration detection algorithm or lightweight visual detection and radar detection algorithms are moved to the detection unit (for example, an MCU or an APA) with low power consumption, and a small battery supplies power. The compute unit (for example, a SoC or a CDC) is woken up only when necessary, to run a full detection algorithm, so that the power consumption can be reduced while ensuring detection effect to be accurate.

[00272] When the environment detection apparatus may be a chip or a chip system, refer to a diagram of a structure of a chip in FIG. 10.

[00273] As shown in FIG. 10, the chip 100 includes a processor 1001 and an interface 1002. There may be one or more processors 1001, and there may be a plurality of interfaces 1002. It should be noted that functions separately corresponding to the processor 1001 and the interface 1002 may be implemented by using a hardware design, may be implemented by using a software design, or may be implemented by using a combination of software and hardware. This is not limited herein.

[00274] Optionally, the chip 100 may further include a memory 1003, and the memory 1003 is configured to store necessary program instructions and data.

[00275] In this application, the processor 1001 may be configured to: invoke, from the memory 1003, an implementation program of the environment detection method provided in one or more embodiments of this application in one or more devices in a detection unit, or a compute unit, or a control unit deployed with detection software, and execute instructions included in the program. The interface 1002 may be configured to output an execution result of the processor 1001. In this application, the interface 1002 may be specifically configured to output messages or information of the processor 1001.

[00276] For the environment detection method provided in one or more embodiments of this application, refer to the foregoing embodiment shown in FIG. 3 or FIG. 7. Details are not described herein again.

[00277] The processor in embodiments of this application may be a central processing unit (Central Processing Unit, CPU), the processor may alternatively be another general-purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (application-specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA), or another programmable logic device, a discrete gate or a transistor logic device, a discrete hardware component, or the like. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

[00278] The memory in embodiments of this application is configured to provide storage space, and the storage space may store data such as an operating system and a computer program. The memory includes but is not limited to a random access memory (random access memory, RAM), a read-only memory (read-only memory, ROM), an erasable programmable read-only memory (erasable programmable read-only memory, EPROM), or a compact disc read-only memory (compact disc read-only memory, CD-ROM).

[00279] According to the methods provided in embodiments of this application, an embodiment of this application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is run on one or more processors, the method shown in FIG. 3 or FIG. 7 may be implemented.

[00280] According to the methods provided in embodiments of this application, an embodiment of this application further provides a computer program product. The computer program product includes a computer program. When the computer program is run on a processor, the method shown in FIG. 3 or FIG. 7 may be implemented.

[00281] An embodiment of this application further provides a system. The system includes at least one environment detection apparatus 80, environment detection apparatus 90, or chip 100, configured to perform steps performed by a corresponding device in any embodiment in FIG. 3 or FIG. 7.

[00282] An embodiment of this application further provides a system. The system includes a detection unit, or a compute unit, or a control unit deployed with detection software. The detection unit, or the compute unit, or the control unit is configured to perform steps performed by a corresponding device in the embodiment shown in FIG. 3 or FIG. 7.

[00283] An embodiment of this application further provides a processing apparatus, including a processor and an interface. The processor is configured to perform the method in any one of the foregoing method embodiments.

[00284] It should be understood that the processing apparatus may be a chip. For example, the processing apparatus may be a field programmable gate array (field programmable gate array, FPGA), or may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (application-specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, may be a system on chip (system on chip, SoC), may be a central processing unit (central processing unit, CPU), may be a network processor (network processor, NP), may be a digital signal processing circuit (digital signal processor, DSP), may be a microcontroller unit (microcontroller unit, MCU), or may be a programmable logic device (programmable logic device, PLD) or another integrated chip. The processing apparatus may implement or perform the methods, the steps, and the logical block diagrams that are disclosed in embodiments of this application. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor or the like. The steps of the methods disclosed with reference to embodiments of this application may be directly performed and completed by a hardware decoding processor, or may be performed and completed by using a combination of hardware in a decoding processor and a software module. The software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is located in the memory, and the processor reads information in the memory and completes the steps of the foregoing method in combination with hardware of the processor.

[00285] It may be understood that the memory in this embodiment of this application may be a volatile memory or a non-volatile memory, or may include a volatile memory and a non-volatile memory. The non-volatile memory may be a read-only memory (read-only memory, ROM), a programmable read-only memory (programmable ROM, PROM), an erasable programmable read-only memory (erasable PROM, EPROM), an electrically erasable programmable read-only memory (electrically EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM) that is used as an external cache. By way of example but not limitation, a plurality of forms of RAMs may be used, for example, a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), a synchronous dynamic random access memory (synchronous DRAM, SDRAM), a double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), an enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), a synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and a direct rambus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the system and method described in this specification includes but is not limited to these and any memory of another proper type.

[00286] All or a part of the foregoing embodiments may be implemented by using software, hardware, firmware, or any combination thereof. When the software is used to implement embodiments, all or a part of embodiments may be implemented in a form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the procedure or functions according to embodiments of this application are all or partially generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or another programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or may be transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center in a wired (for example, a coaxial cable, an optical fiber, or a digital subscriber line (digital subscriber line, DSL)) or wireless (for example, infrared, radio, or microwave) manner. The computer-readable storage medium may be any usable medium accessible by the computer, or a data storage device like a server or a data center, integrating one or more usable media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk drive, or a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), a semiconductor medium (for example, a solid state disk (solid state disk, SSD)), or the like.

[00287] The units in the foregoing apparatus embodiments completely correspond to the electronic devices in the method embodiments, and a corresponding module or unit performs a corresponding step. For example, a transceiver unit (a transceiver) performs a receiving or sending step in the method embodiments, and a step other than the sending step and the receiving step may be performed by a processing unit (a processor). For a function of a specific unit, refer to a corresponding method embodiment. There may be one or more processors.

[00288] It may be understood that in embodiments of this application, the electronic device may perform some or all steps in embodiments of this application. These steps or operations are merely examples. In embodiments of this application, other operations or variations of various operations may be performed. In addition, the steps may be performed in a sequence different from a sequence presented in embodiments of this application, and not all operations in embodiments of this application need to be performed.

[00289] A person of ordinary skill in the art may be aware that, in combination with the examples described in embodiments disclosed in this specification, units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on particular applications and design constraint conditions of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular application, but it should not be considered that the implementation goes beyond the scope of this application.

[00290] It may be clearly understood by a person skilled in the art that, for the purpose of convenient and brief description, for a detailed working process of the foregoing system, apparatus, and unit, refer to a corresponding process in the foregoing method embodiments. Details are not described herein again.

[00291] In the several embodiments according to this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other manners. For example, the described apparatus embodiments are merely examples. For example, division into the units is merely logical function division. There may be another division manner during actual implementation. For example, a plurality of units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections may be implemented through some interfaces. The indirect couplings or communication connections between the apparatuses or units may be implemented in electronic, mechanical, or other forms.

[00292] Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one location, or may be distributed on a plurality of network units. Some or all of the units may be selected based on an actual requirement to achieve the objectives of the solutions of embodiments.

[00293] In addition, functional units in embodiments of this application may be integrated into one processing unit, or each of the units may exist alone physically, or two or more units may be integrated into one unit.

[00294] When the functions are implemented in a form of a software functional unit and sold or used as an independent product, the functions may be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of this application essentially, or some of the technical solutions may be embodied in a form of a software product. The computer software product is stored in a storage medium, and includes several instructions for enabling a computer device (which may be a personal computer, a server, a network device, or the like) to perform all or some steps of the methods in embodiments of this application. The foregoing storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disc.

[00295] The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application.

Claims

1. An environment detection system, wherein the system comprises:a detection unit, configured to: when a vehicle is in a parking state, obtain first environment data, and perform environment detection based on the first environment data, whereinthe detection unit is configured to: when detecting a first trigger event, send a first wakeup signal and second environment data to a compute unit, wherein the second environment data comprises the first environment data and / or a data processing result obtained based on the first environment data; andthe compute unit, configured to determine, based on the second environment data, whether to generate alarm information, whereinwhen the vehicle is in the parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

2. The system according to claim 1, wherein the first environment data comprises a vibration signal from an acceleration sensor; andthe detection unit is further configured to: when the vibration signal exceeds a first vibration threshold, determine that the first trigger event is detected.

3. The system according to claim 1 or 2, wherein the first environment data comprises sensing data from an environment sensor;the detection unit is further configured to determine, based on the sensing data, whether a moving object exists around the vehicle; andthe detection unit is further configured to: when determining that the moving object exists around the vehicle, determine that the first trigger event is detected.

4. The system according to claim 1, wherein the detection unit comprises a sensing data processing module and a vibration signal processing module, and the first environment data comprises a vibration signal from an acceleration sensor and sensing data from an environment sensor;the vibration signal processing module is configured to send a second wakeup signal to the sensing data processing module when the vibration signal exceeds a first vibration threshold;the sensing data processing module is configured to determine, based on the sensing data, whether a moving object exists around the vehicle; andthe sensing data processing module is configured to: when determining that the moving object exists around the vehicle, determine that the first trigger event is detected, whereinbefore receiving the second wakeup signal, the sensing data processing module is in the sleep state.

5. The system according to any one of claims 1 to 4, wherein the second environment data comprises the first environment data and the data processing result obtained based on the first environment data, the first environment data comprises the sensing data and the vibration signal, the data processing result comprises a possible area in which the moving object is located, and the possible area in which the moving object is located is determined based on the sensing data;the compute unit is configured to determine a target moving object based on the sensing data and the possible area in which the moving object is located;the compute unit is configured to generate the alarm information when a distance between the target moving object and the vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold; andthe compute unit is configured to re-enter the sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, whereinthe vibration intensity of the vehicle is determined based on the vibration signal.

6. The system according to claim 5, wherein the alarm information comprises a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information;when the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity; andwhen the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

7. The system according to any one of claims 1 to 6, whereinwhen the target alarm severity is the first alarm severity, the compute unit is further configured to display first alarm prompt information via a display device; andwhen the target alarm severity is the second alarm severity, the compute unit is further configured to send second alarm prompt information to a user terminal.

8. The system according to claim 7, whereinthe compute unit is further configured to store video / picture data associated with the alarm information, wherein the video / picture data is collected by a visual sensor; orthe compute unit is further configured to: store video / picture data associated with the alarm information, and re-enter the sleep state after storing the video / picture data associated with the alarm information.

9. The system according to any one of claims 1 to 8, whereinthe compute unit is further configured to re-enter the sleep state when not receiving the second environment data from the detection unit within first duration after generating the alarm information.

10. An environment detection apparatus, wherein the apparatus is a compute unit, and the apparatus comprises:a transceiver unit, configured to receive a first wakeup signal and second environment data from a detection unit, wherein the second environment data comprises first environment data collected by the detection unit and / or a data processing result obtained based on the first environment data; anda processing unit, configured to determine, based on the second environment data, whether to generate alarm information, whereinwhen a vehicle is in a parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state.

11. The apparatus according to claim 10, wherein the second environment data comprises the first environment data and the data processing result obtained based on the first environment data, the first environment data comprises sensing data and a vibration signal, the data processing result comprises a possible area in which the moving object is located, and the possible area in which the moving object is located is determined based on the sensing data; andwhen determining, based on the second environment data, whether to generate the alarm information, the processing unit is configured to:determine a target moving object based on the sensing data and the possible area in which the moving object is located;generate the alarm information when a distance between the target moving object and the vehicle is less than or equal to a distance threshold, and / or vibration intensity of the vehicle is greater than or equal to a second vibration threshold; andre-enter the sleep state when the distance between the target moving object and the vehicle is greater than the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, whereinthe vibration intensity of the vehicle is determined based on the vibration signal.

12. The apparatus according to claim 11, wherein the alarm information comprises a target alarm severity, the target alarm severity is one of a plurality of alarm severities, and the plurality of alarm severities indicate severity levels of the alarm information;when the distance between the target moving object and the vehicle is less than or equal to the distance threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is less than the second vibration threshold, the target alarm severity is a first alarm severity; andwhen the vibration intensity of the vehicle is greater than or equal to a vibration threshold, or the distance between the target moving object and the vehicle is less than or equal to the distance threshold, and the vibration intensity of the vehicle is greater than or equal to the second vibration threshold, the target alarm severity is a second alarm severity.

13. The apparatus according to any one of claims 10 to 12, wherein the apparatus further comprises a storage unit;the storage unit is configured to store video / picture data associated with the alarm information, wherein the video / picture data is collected by a visual sensor; orthe storage unit is configured to store video / picture data associated with the alarm information, andthe processing unit is configured to re-enter the sleep state after the storage unit stores the video / picture data associated with the alarm information.

14. The apparatus according to any one of claims 10 to 13, wherein the processing unit is further configured to re-enter the sleep state when the transceiver unit does not receive the second environment data from the detection unit within first duration after the alarm information is generated.

15. An environment detection method, wherein the method comprises:receiving, by a compute unit, a first wakeup signal and second environment data from a detection unit, wherein the second environment data comprises first environment data collected by the detection unit and / or a data processing result obtained based on the first environment data; anddetermining, by the compute unit based on the second environment data, whether to generate alarm information, whereinwhen a vehicle is in a parking state, the detection unit is in a powered state, and before receiving the first wakeup signal, the compute unit is in a sleep state. 

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