CN118264897A - Low-power consumption shooting system, image data acquisition method and electronic equipment - Google Patents

Low-power consumption shooting system, image data acquisition method and electronic equipment Download PDF

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Publication number
CN118264897A
CN118264897A CN202211682632.1A CN202211682632A CN118264897A CN 118264897 A CN118264897 A CN 118264897A CN 202211682632 A CN202211682632 A CN 202211682632A CN 118264897 A CN118264897 A CN 118264897A
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performance
low
detection mode
preset
message
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李文荣
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Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The embodiment of the application provides a low-power consumption shooting system, an image data acquisition method and electronic equipment, wherein a radar module acquires first radar data in a low-performance detection mode and sends the first radar data to a low-performance processor; the low-performance processor obtains a first analysis result by using a preset low-performance algorithm; and when the second preset shooting condition is met, sending a second shooting message to the camera, and responding to the acquired image data by the camera. When a preset high-performance starting condition is met, a first starting message is sent to a high-performance processor, and a first switching message is sent to a radar module; the radar module switches a high-performance detection mode, acquires second radar data and sends the second radar data to the high-performance processor; the high-performance processor switches a high-performance detection mode; obtaining a second analysis result by using a preset high-performance algorithm; when the second analysis result meets a first preset shooting condition, a first shooting message is sent to a camera; the camera is responsive to acquiring image data. The embodiment of the application realizes low-power consumption acquisition of the image data.

Description

Low-power consumption shooting system, image data acquisition method and electronic equipment
Technical Field
The present application relates to the field of digital monitoring technologies, and in particular, to a low-power consumption shooting system, an image data acquisition method, and an electronic device.
Background
For application scenes such as orchards, farms, scenic spots, forest farms and the like where power distribution is inconvenient, a solar radar camera system is often used for realizing real-time monitoring in the scenes, the system utilizes radar to detect the fields in real time, a camera is triggered to collect images after targets are found, and the collected images are uploaded to a user terminal through a data transmission module so that a user can manually check the conditions in the scenes based on the images. The system avoids the camera and the data transmission module from working in real time all the time, saves power consumption and can better realize all-weather monitoring all the day.
The radar supports to output data with different layers and different specifications for further algorithm analysis processing to obtain a final detection result. If the analysis processing is carried out on the large-size data at the lower layer, the analysis result is more accurate, but the complexity is high, the memory resource consumption is high, the performance requirement on the processor is high, the power consumption is high, and the long-time cruising of the whole system is difficult to realize; if the data with smaller specification on the upper layer is processed, the complexity is low, the memory resource consumption is low, the performance requirement on the processor is low, the power consumption is low, but the data can be simply analyzed and processed, and the complex scene application is difficult to realize. In summary, it is difficult for the radar system in the related art to improve the accuracy of the detection result while saving power consumption.
Disclosure of Invention
The embodiment of the application aims to provide a low-power consumption shooting system, an image data acquisition method and electronic equipment, so that the accuracy of a detection result is improved under the condition of saving power consumption. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a low power consumption photographing system, including:
a radar module, a low performance processor, a high performance processor, and a camera;
The radar module is used for: in a low-performance detection mode, acquiring first radar data, and sending the first radar data to the low-performance processor;
The low performance processor is configured to: acquiring the first radar data in a low-performance detection mode; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition;
the radar module is further configured to: switching to a high-performance detection mode after receiving the first switching message; in a high-performance detection mode, acquiring second radar data, and sending the second radar data to the high-performance processor;
The high performance processor is configured to: switching from a sleep state to a high performance detection mode in response to the first initiation message; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to the camera under the condition that the second analysis result meets a first preset shooting condition; the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm;
The camera is used for: and responding to the first shooting message to acquire image data.
In one possible implementation, the low performance processor is further configured to: after the radar module is switched to a high-performance detection mode, and the high-performance processor is switched to the high-performance detection mode, entering a dormant state;
The high performance processor is further configured to: sending a second starting message to the low-performance processor and a second switching message representing entering a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition;
The radar module is further configured to: switching to a low performance detection mode after receiving the second switching message;
the low performance processor is further configured to: switching from a sleep state to a low performance detection mode in response to the second initiation message;
The high performance processor is further configured to: and after the radar module is switched into a low-performance detection mode and the low-performance processor is switched into the low-performance detection mode, entering a dormant state.
In one possible implementation, the low performance processor is further configured to: sending a second shooting message to the camera under the condition that the first analysis result meets a second preset shooting condition;
The camera is also for: and responding to the second shooting message to acquire image data.
In one possible embodiment, the system further comprises: a communication module;
the high performance processor is further configured to: sending a third starting message to the communication module under the condition that the second analysis result meets the first preset shooting condition;
The communication module is used for responding to the third starting message and switching from a dormant state to a working state; in a working state, sending the image data collected by the camera to a subscribing terminal;
The low performance processor is further configured to: sending a fourth starting message to the communication module under the condition that the first analysis result meets a second preset shooting condition;
the communication module is used for responding to the fourth starting message and switching from a dormant state to a working state; and in a working state, sending the image data acquired by the camera to a subscribing terminal.
In one possible implementation, the first radar data is upper layer data of a first specification;
The low-performance processor is specifically configured to: performing target detection on the upper layer data of the first specification to obtain a first analysis result;
the second radar data are bottom data of a second specification; wherein the second specification is greater than the first specification;
the high performance processor is specifically for: and performing power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification to obtain a second analysis result.
In a second aspect, an embodiment of the present application provides an image data acquisition method, applied to an electronic device, where the electronic device includes a low-performance processor and a high-performance processor, the method includes:
Acquiring the first radar data by using the low-performance processor in a low-performance detection mode, wherein the first radar data are acquired and transmitted by a radar module in the low-performance detection mode; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition; the radar module is switched to a high-performance detection mode after receiving the first switching message, second radar data are acquired in the high-performance detection mode, and the second radar data are sent to the high-performance processor;
Switching from a sleep state to a high performance detection mode in response to the first initiation message with a high performance processor; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to a camera under the condition that the second analysis result meets a first preset shooting condition; and enabling the camera to respond to the first shooting message to acquire image data, wherein the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm.
In one possible embodiment, the method further comprises:
The low-performance processor is utilized to enter a dormant state after the radar module is switched to a high-performance detection mode and the high-performance processor is switched to the high-performance detection mode;
Transmitting a second start message to the low-performance processor and a second switching message indicating to enter a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition by using the high-performance processor; switching the radar module to a low-performance detection mode after receiving the second switching message;
Switching from a sleep state to a low performance detection mode in response to the second initiation message with the low performance processor;
and the high-performance processor is utilized to enter a dormant state after the radar module is switched to a low-performance detection mode and the low-performance processor is switched to the low-performance detection mode.
In one possible embodiment, the method further comprises:
Transmitting a second photographing message to the camera by using the low-performance processor under the condition that the first analysis result meets a second preset photographing condition; causing the camera to perform image data acquisition in response to the second photographing message.
In one possible embodiment, the method further comprises:
Transmitting a third start message to the communication module by using the high-performance processor under the condition that the second analysis result meets a first preset shooting condition; the communication module is switched from a dormant state to a working state in response to the third starting message, and image data collected by the camera is sent to a subscribing terminal in the working state;
transmitting a fourth start message to the communication module by using the low-performance processor under the condition that the first analysis result meets a second preset shooting condition; and the communication module responds to the fourth starting message and is switched from the dormant state to the working state, and in the working state, the image data collected by the camera is sent to the subscribing terminal.
In one possible implementation, the first radar data is upper layer data of a first specification; the step of analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result includes:
performing target detection on the upper layer data of the first specification by using the low-performance processor to obtain a first analysis result;
The second radar data is bottom data of a second specification, wherein the second specification is larger than the first specification; the step of analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result includes:
and carrying out power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification by using the high-performance processor to obtain a second analysis result.
In a third aspect, an embodiment of the present application provides an electronic device, including:
a memory for storing a computer program;
the low-performance processor is used for realizing the method steps executed by the low-performance processor in any one of the image data acquisition methods when executing the programs stored in the memory;
And the high-performance processor is used for realizing the method steps executed by the high-performance processor in any one of the image data acquisition methods when executing the programs stored in the memory.
In a fourth aspect, an embodiment of the present application provides a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements the image data acquisition method according to any one of the present application.
In a fifth aspect, embodiments of the present application also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the methods described above.
The embodiment of the application has the beneficial effects that:
according to the low-power consumption shooting system provided by the embodiment of the application, the system keeps a low-performance detection mode for a long time, the radar module firstly collects first radar data suitable for a low-performance processor in the low-performance detection mode and sends the first radar data to the low-performance processor, so that the low-performance processor analyzes the first radar data by utilizing a preset low-performance algorithm to obtain a first analysis result, whether a preset high-performance starting condition is met or not is determined based on the first analysis result, if yes, the high-performance processor is judged to be required to be started, the high-performance processor is started, the radar module is enabled to switch the high-performance detection mode, second radar data suitable for the high-performance processor is acquired again, the high-performance processor entering the high-performance detection mode can analyze the second radar data by utilizing the preset high-performance algorithm, the second analysis result capable of judging whether the camera is required to be started to acquire image data in a visual field is obtained, and then the first shooting message is sent to the camera under the condition that the camera is judged to be required to acquire the image data in the visual field in time.
According to the embodiment of the application, the radar module can acquire radar data of different specifications according to the detection mode, the low-performance processor is utilized to perform simple processing based on the preset low-performance algorithm with low power consumption under the condition of simpler visual field, the high-performance processor is restarted to perform complex processing based on the preset high-performance algorithm with high power consumption under the condition of more complex visual field, and the timely conversion between the low-performance detection mode and the high-performance detection mode is realized by judging the specific condition in the current visual field, so that the system achieves the mutual balance between the low power consumption and the high performance, and the accuracy of the detection result is improved under the condition of saving the power consumption.
Of course, it is not necessary for any one product or method of practicing the application to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and other embodiments may be obtained according to these drawings to those skilled in the art.
Fig. 1a is a schematic structural diagram of a low-power consumption shooting system according to an embodiment of the present application;
fig. 1b is an exemplary diagram of a background impurity band of a first power map according to an embodiment of the present application;
fig. 1c is an exemplary diagram of a background impurity band of a second power map according to an embodiment of the present application;
fig. 1d is a diagram illustrating data transmission examples of a low power consumption shooting system according to an embodiment of the present application;
Fig. 1e is a diagram illustrating detection mode switching of a low power consumption shooting system according to an embodiment of the present application;
Fig. 1f is an exemplary diagram of an application device of a low power consumption shooting system according to an embodiment of the present application;
FIG. 1g is a diagram illustrating an exemplary processing of second radar data by a high performance processor according to an embodiment of the present application;
FIG. 1h is a diagram illustrating an exemplary processing of first radar data by a low performance processor according to an embodiment of the present application;
FIG. 1i is a schematic diagram of a radar module workflow provided in an embodiment of the present application;
Fig. 2 is a flowchart of a first image data acquisition method according to an embodiment of the present application;
Fig. 3 is a flowchart of a second image data acquisition method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.
In order to achieve the purpose of improving the accuracy of detection results while saving power consumption, the application provides a low-power-consumption shooting system, an image data acquisition method and electronic equipment, and the method is described in the following through specific embodiments.
In a first aspect, referring to fig. 1a, an embodiment of the present application provides a structural schematic diagram of a low power consumption shooting system, including:
a radar module, a low performance processor, a high performance processor, and a camera;
The radar module is used for: in a low-performance detection mode, acquiring first radar data, and sending the first radar data to the low-performance processor;
The low performance processor is configured to: acquiring the first radar data in a low-performance detection mode; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition;
the radar module is further configured to: switching to a high-performance detection mode after receiving the first switching message; in a high-performance detection mode, acquiring second radar data, and sending the second radar data to the high-performance processor;
The high performance processor is configured to: switching from a sleep state to a high performance detection mode in response to the first initiation message; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to the camera under the condition that the second analysis result meets a first preset shooting condition; the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm;
The camera is used for: and responding to the first shooting message to acquire image data.
In the embodiment of the application, the radar module firstly collects first radar data in a low-performance detection mode, wherein the first radar data is radar echo data after the radar module irradiates electromagnetic waves into a visual field and receives echoes, and the radar echo target data can embody information such as the distance between a target existing in the visual field and the position of the radar module transmitting the electromagnetic waves, the distance change rate (radial speed) of the target, the azimuth, the altitude and the like. The field of view of the radar module comprises an overall scene for monitoring by applying the low-power shooting system.
Under the low-performance detection module, the high-performance processor is in a dormant state, after the radar module acquires the first radar data, the first radar data is sent to the low-performance processor, so that the low-performance processor analyzes the first radar data by using a preset low-performance algorithm, specifically, the preset low-performance algorithm is a low-power-consumption data processing algorithm, the power consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm, for example, the preset low-performance algorithm is an algorithm with the power consumption lower than a preset power consumption threshold, the preset high-performance algorithm is an algorithm with the power consumption higher than the preset power consumption threshold, and the preset low-performance algorithm can be specifically selected according to practical requirements. The low-performance processor analyzes the first radar data to obtain a first analysis result, and based on the first radar data, whether an abnormal condition exists in the current field of view is analyzed and judged, and the first analysis result can represent a judgment result aiming at the abnormal condition in the current field of view, for example, whether a remarkable target exists in the current field of view, such as an unknown person exists, a scene abnormal condition exists, and the like, and whether a high abnormal condition which cannot be accurately processed or identified by the low-performance processor exists in the current field of view can also be represented.
In one example, the first radar data includes alarm data, for example, each time a radial motion of an object is detected, alarm information is generated once, and the radar module organizes all alarm information generated in a preset time period into alarm data, where the preset time period is a time window set according to actual requirements, for example, 5 seconds, 30 seconds, 1 minute, and the like. The first radar data may include one or more alert data within a predetermined period of time.
In a normal scenario, even if there is an abnormal situation, the number of objects to be noted is small, so that alarm data is not frequently generated. The alarm data may be caused by clutter interference due to background disturbances if generated frequently. Background disturbance does not always exist, and is related to scenes in most cases, for example, large amounts of alarm data can be generated due to rain clutter caused by strong wind and heavy rain, and tree and leaf shaking. Because there is no complex clutter filtering algorithm in the preset low performance algorithm that can be applied by the low performance processor, in order to better suppress the current background disturbance, a real target that needs to be noted needs to be detected from the background disturbance, and the high performance processor needs to switch to a high performance detection mode, so that the high performance processor processes by using the high performance algorithm. Similarly, if there is no windy and rainy weather, for example, the view is static and the background disturbance is small, the low-performance processor can process.
Therefore, the low-performance processor analyzes according to the alarm data, so that the obtained first analysis result comprises a background disturbance situation in the visual field, specifically, the background disturbance situation indicates that a large number of radial moving targets exist in the visual field, and the number of the radial moving targets exceeds a preset number threshold. The first analysis result can indicate whether a background disturbance situation exists in the visual field and the severity of the background disturbance situation, and whether the severity of the background disturbance situation exceeds the analysis processing capacity of the low-performance processor or not, specifically, the first analysis result can be judged according to the generation frequency or the generation frequency of the alarm information, for example, when the generation frequency (also called as false alarm rate) of the alarm information in a preset time period in the alarm data exceeds a preset alarm frequency threshold, the first analysis result indicates that the background disturbance situation exists; when the generation frequency of the alarm information in the continuous multiple preset time periods exceeds the preset alarm frequency threshold, or the sum of the generation times of the alarm information in the continuous multiple preset time periods exceeds the preset first time threshold, the background disturbance situation exists, the background disturbance situation is serious, and the severity degree exceeds the analysis processing capacity of the low-performance processor.
In one example, in the implementation process, when the number of times of generating the alarm information in a preset time period exceeds a preset number threshold, the accumulated number of times of the counter is increased by 1; when the accumulated times of the counter do not exceed a preset second time threshold, the background disturbance condition is indicated to exist, but the severity is lower, and the low-performance processor can perform analysis processing; when the accumulated number of times of the counter exceeds a preset second time threshold, the condition of background disturbance exists, the severity of the condition of the background disturbance is higher, the analysis processing capacity of the low-performance processor is exceeded, and accurate analysis processing cannot be performed.
The first analysis result satisfies a preset high-performance starting condition, that is, indicates that the situation in the current field of view exceeds the analysis processing capability of the low-performance processor, for example, the preset high-performance starting condition may be that the background disturbance situation exceeds the disturbance threshold, or may be other indicators capable of indicating that the situation in the current field of view exceeds the analysis capability of the low-performance processor, for example, the number of dynamic targets in the first radar data is excessive, the first analysis result is not clear enough or cannot accurately indicate the situation in the current field of view, and so on.
Under the condition that the first analysis result meets a preset high-performance starting condition, the low-performance processor sends a first switching message for indicating that the high-performance detection mode is entered to the radar module, so that the radar module switches the detection mode to the high-performance detection mode, then second radar data is acquired in the high-performance detection mode, and the second radar data is sent to the high-performance processor; and simultaneously, the low-performance processor also sends a first starting message to the high-performance processor, so that the high-performance processor is switched from a dormant state to a working state, namely to a high-performance detection mode, the second radar data are acquired, and then the second radar data are analyzed by utilizing a preset high-performance algorithm, so that a second analysis result is obtained.
Specifically, a low-performance processor refers to a processor which has smaller memory resources, lower operation efficiency, simpler performance, lower power consumption, can only run a relatively simple data analysis processing algorithm, and only processes lower-level smaller specification data with lower complexity compared with a high-performance processor; the high-performance processor is a processor which has larger memory resources, higher running efficiency, more complex performance and higher power consumption, can run a relatively complex data analysis processing algorithm and can process larger-specification data of a lower layer with higher complexity compared with the low-performance processor; in particular, the operating efficiency of a high-performance processor may be tens or hundreds of times higher than that of a low-performance processor, and the operating power consumption may also exceed tens or hundreds of times.
Therefore, the first radar data is upper layer data with smaller specification, the second radar data is lower layer data with larger specification, the preset low-performance algorithm is an algorithm with simpler logic capable of processing the upper layer data with smaller specification, the preset high-performance algorithm is an algorithm with more complex logic capable of processing the lower layer data with larger specification, the preset high-performance algorithm can comprise an anti-disturbance algorithm, a filtering algorithm, a target detection algorithm and the like, and the preset high-performance algorithm can be specifically set in detail according to actual requirements. In one example, the preset low performance algorithm may be a simplified version of the preset high performance algorithm.
After the second analysis result is obtained, the high-performance processor sends a first shooting message to the camera under the condition that the second analysis result meets the first preset shooting condition, so that the camera collects image data in the field of view. Specifically, the first preset shooting condition indicates that the condition that an image needs to be acquired exists in the field of view is detected under a preset high-performance algorithm, for example, the credibility of a moving object detected under the preset high-performance algorithm is greater than a preset credibility threshold; the high performance processor sends a first photographing message to the camera indicating a request for acquisition to thereby effect acquisition of image data within the field of view.
In one example, the camera may be a thermal imaging camera, an infrared camera, a black light camera, etc., which is not particularly limited.
In one embodiment of the application, the low performance processor is further configured to: sending a second shooting message to the camera under the condition that the first analysis result meets a second preset shooting condition;
The camera is also for: and responding to the second shooting message to acquire image data.
In the embodiment of the application, the second preset shooting condition indicates that the condition that the image to be acquired exists in the field of view is detected under a preset low-performance algorithm, for example, the credibility of the moving object detected under the preset low-performance algorithm is greater than a preset credibility threshold; a second photographing message is sent to the camera to cause the camera to collect image data within the field of view.
As can be seen from the above, in the low-power consumption shooting system provided by the embodiment of the application, the low-performance processor also enables the camera to timely acquire image data in the field of view under the condition that the first analysis result obtained in the low-performance detection mode meets the second preset shooting condition, so that the system can timely detect the field of view.
As can be seen from the foregoing, in the low-power consumption shooting system provided by the embodiment of the present application, the system keeps a low-performance detection mode for a long period of time, the radar module firstly collects first radar data applicable to the low-performance processor in the low-performance detection mode and sends the first radar data to the low-performance processor, so that the low-performance processor analyzes the first radar data by using a preset low-performance algorithm to obtain a first analysis result, determines whether a preset high-performance starting condition is met or not based on the first analysis result, and if yes, starts the high-performance processor, and makes the radar module switch the high-performance detection mode, and re-acquires second radar data applicable to the high-performance processor, so that the high-performance processor entering the high-performance detection mode can analyze the second radar data by using a preset high-performance algorithm, and further sends a first shooting message to the camera if the camera needs to collect image data in a field of view in time. It can be appreciated that the high-performance processor is applied to scenes with serious background disturbance, such as scenes of rain clutter caused by strong wind and strong rain, tree leaf and vegetation shaking and the like, and the high-performance processor can obtain higher precision in the scenes by utilizing a preset high-performance algorithm. And aiming at a scene with less serious background disturbance, the low-performance processor can directly trigger the camera to take a picture, namely under the low-performance detection mode, when a first analysis result obtained by analysis of the low-performance processor meets a second preset shooting condition, the low-performance processor sends a second shooting message to the camera so that the camera responds to the second shooting message to acquire image data.
According to the embodiment of the application, the radar module can acquire radar data of different specifications according to the detection mode, the low-performance processor is utilized to perform simple processing based on the preset low-performance algorithm with low power consumption under the condition of simpler visual field, the high-performance processor is restarted to perform complex processing based on the preset high-performance algorithm with high power consumption under the condition of more complex visual field, and the timely conversion between the low-performance detection mode and the high-performance detection mode is realized by judging the specific condition in the current visual field, so that the system achieves the mutual balance between the low power consumption and the high performance, and the accuracy of the detection result is improved under the condition of saving the power consumption.
In one embodiment of the application, the low performance processor is further configured to: after the radar module is switched to a high-performance detection mode, and the high-performance processor is switched to the high-performance detection mode, entering a dormant state;
The high performance processor is further configured to: sending a second starting message to the low-performance processor and a second switching message representing entering a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition;
The radar module is further configured to: switching to a low performance detection mode after receiving the second switching message;
the low performance processor is further configured to: switching from a sleep state to a low performance detection mode in response to the second initiation message;
The high performance processor is further configured to: and after the radar module is switched into a low-performance detection mode and the low-performance processor is switched into the low-performance detection mode, entering a dormant state.
In the embodiment of the application, after the radar mode is switched to the high-performance detection mode, the low-performance processor does not need to participate in data processing at the moment, and enters the dormant state. And after receiving the second radar data, the high-performance processor analyzes the second radar data to obtain a second analysis result, and if the second analysis result meets a preset low-performance switching condition, the high-performance processor indicates that the low-performance detection mode needs to be switched.
Specifically, the high-performance processor can extract the power map data from the second radar data, the high-performance processor can analyze background band clutter in the power map to judge whether a background disturbance condition exists in the visual field, if the background disturbance condition is static in the visual field, the low-performance detection mode is switched, and the low-performance processor can be used for processing.
Specifically, if the background disturbance situation is less and simpler, and the severity of the background disturbance situation is lower, the clutter band is generally narrower, more stable and less in time domain fluctuation; if the background disturbance situation is more complex and the severity of the background disturbance situation is higher, the clutter band is generally wider, unstable and the temporal fluctuations are larger, as shown in fig. 1b and 1 c.
In one example, a preset time period may be set, where the power map is narrower and more stable, and the number of times accumulated by the counter is increased by 1; when the accumulated times of the counter do not exceed a preset third time threshold, the current background disturbance situation is more complex, the severity of the background disturbance situation is higher, and a high-performance processor is required to analyze and process; when the accumulated times of the counter exceeds a preset third time threshold, the current background disturbance situation is less and simpler, the severity of the background disturbance situation is lower, the high-performance processor is not needed for analysis processing, the low-performance processor can process the background disturbance situation well, and the low-performance processor needs to be switched to a low-performance detection mode for processing so as to reduce the power consumption.
In another example, the background clutter ranges of different distance segments in the power map are different, so the high performance processing can also set different distance thresholds according to the distance segments to determine whether the clutter bands are narrower; synthesizing judgment results of all distance segments in the power map so as to acquire background disturbance conditions in the current visual field, specifically, judging that the power map has larger fluctuation if the distance segments with fluctuation in the power map are larger than a preset quantity threshold, and indicating that the current background disturbance conditions are more complex and the severity of the background disturbance conditions is higher, wherein a high-performance processor is required to analyze and process; the method can also judge that the distance segments with fluctuation in the multi-frame power diagram in the preset time period are all larger than a preset first quantity threshold value, and the number of frames exceeds a preset frame number threshold value, so that the current background disturbance situation is more complex, the severity of the background disturbance situation is higher, and a high-performance processor is required to analyze and process; if the distance segment with fluctuation in the power diagram is smaller than a preset second quantity threshold, judging that the fluctuation of the power diagram is smaller, and indicating that the current background disturbance situation is less and simpler, the severity of the background disturbance situation is lower, and analyzing and processing by the low-performance processor; and the method can also judge that the fluctuation distance segments in the multi-frame power diagram in the preset time period are smaller than the preset second number threshold, and the number of frames exceeds the preset number of frames threshold, so that the method indicates that the current background disturbance situation is less and simpler, the severity of the background disturbance situation is lower, and the high-performance processor can analyze and process.
The second analysis result satisfies a preset low-performance starting condition, that is, the condition in the current field of view does not need a high-performance processor, and the low-performance processor can perform analysis processing, and the preset low-performance starting condition may be that the severity of the background disturbance condition is low, or may be other indicators capable of indicating that the condition in the current field of view does not need a high-performance processor or a low-performance processor and performing analysis processing, for example, the data size of the second radar data is too small.
And under the condition that the second analysis result meets the preset low-performance starting condition, the high-performance processor sends a second switching message for indicating that the radar module enters a low-performance detection mode to enable the radar module to switch the detection mode into the low-performance detection mode, then the high-performance processor enters a dormant state, and the low-performance processor enters a working state, namely the low-performance detection mode to analyze radar data.
Therefore, in the low-power consumption shooting system provided by the embodiment of the application, the high-performance processor enables the radar module to switch the low-performance detection mode under the condition that the second analysis result meets the preset low-performance switching condition, and starts the low-performance processor to perform analysis processing, so that misjudgment possibly caused by short-time fluctuation in a visual field is reduced, timely conversion between the low-performance detection mode and the high-performance detection mode is realized, the system achieves mutual balance between low power consumption and high performance, and the accuracy of the detection result is improved under the condition of saving power consumption.
In one embodiment of the application, the system further comprises: a communication module;
the high performance processor is further configured to: sending a third starting message to the communication module under the condition that the second analysis result meets the first preset shooting condition;
The communication module is used for responding to the third starting message and switching from a dormant state to a working state; in a working state, sending the image data collected by the camera to a subscribing terminal;
The low performance processor is further configured to: sending a fourth starting message to the communication module under the condition that the first analysis result meets a second preset shooting condition;
the communication module is used for responding to the fourth starting message and switching from a dormant state to a working state; and in a working state, sending the image data acquired by the camera to a subscribing terminal.
In the embodiment of the application, when the obtained second analysis result meets the first preset shooting condition, the high-performance processor respectively sends a third starting message and a fourth starting message to the communication module, specifically, the third starting message and the fourth starting message both represent abnormal conditions in the visual field, and the communication module is awakened and started from a dormant state and is switched to a working state, so that after the camera acquires the image data, the camera sends the image data to the subscription terminal through the communication module, and the subscription terminal can detect the visual field in real time through the received image data and timely check the abnormal conditions in the visual field. In one example, the subscription terminal may be a user terminal, such as a mobile phone, a computer, a tablet, or other terminal devices, that establishes a connection with the low-power consumption shooting system, so that the user can check and manually review the view in time.
The communication module may employ various wireless transmission means, such as 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology), 5G (the 5th generation mobile communication technology, fifth generation mobile communication technology), WI-FI (wireless network communication technology), and the like.
In the embodiment of the present application, a data transmission example of a low-power consumption shooting system may be shown in fig. 1d, a detection mode switching example of the low-power consumption shooting system may be shown in fig. 1e, the low-power consumption shooting system may be applied to an example device shown in fig. 1f, where the example device includes a radar sensing panel and an integrated device, and the integrated device includes a radar module, a low-performance processor, a high-performance processor, and a camera.
Therefore, after the camera collects the image data, the low-power consumption shooting system provided by the embodiment of the application also sends the image data to the subscribing terminal through the communication module, so that the subscribing terminal can timely obtain abnormal conditions in the visual field, and timely check the visual field, thereby improving the monitoring efficiency in the visual field.
In an embodiment of the present application, the first radar data is upper layer data of a first specification, for example, may be two-dimensional FFT (Fast Fourier transform ) data, and the second radar data is bottom layer data of a second specification, for example, may be one-dimensional FFT data, ADC (Analog-to Digital Converter, analog-to-digital converter) data, etc., where the second specification is larger than the first specification, that is, the second radar data is lower layer data and larger specification data than the first radar data, which indicates that the amount of information that can be extracted after the second radar data analysis processing is larger and the processing complexity is higher;
The low-performance processor is specifically configured to: performing target detection on the upper layer data of the first specification to obtain a first analysis result;
the high performance processor is specifically for: and performing power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification to obtain a second analysis result.
In the embodiment of the application, the low-performance processor performs target detection on the upper layer data to obtain a first analysis result, and the high-performance processor needs to perform power map calculation, CFAR (Constant False-ALARM RATE) and clutter suppression on the bottom layer data to obtain a second analysis result.
The general processing framework for FMCW (Frequency Modulated Continuous Wave ) radar is shown in fig. 1 i: the intermediate frequency signal of the radio frequency Front End (RF-Front-End) is sampled by an ADC to obtain ADC data; pre-Process is Pre-processing, for example, MTI (Moving Target Inidcation, moving target display radar) is performed to remove background clutter; and performing FFT processing on the distance dimension to obtain Range FFT (one-dimensional FFT) data, performing speed dimension FFT to obtain Doppler FFT (2D FFT) data, performing DOA (DOA processing) (Direction Of Arrival, DOA direction estimation), outputting point cloud data, clustering representing clustering, tracking, event processing representing Event processing, and outputting trace data.
Specifically, the ADC data after ADC sampling is lower than the distance-dimensional one-dimensional FFT data, which is lower than the distance-speed-dimensional two-dimensional FFT data; further, among the distance-dimensional one-dimensional FFT data, 256-point one-dimensional FFT data is larger in size than 128-point one-dimensional FFT data. The radar may support outputting radar data of different layers or different specifications. In one example, the low performance processor may process based on small-sized (e.g., 32x 32) 2D FFT data; the high performance processor may process based on large-scale (256 x 128) 1D FFTs, even ADC data. The radar data output by the radar module can be set according to actual requirements.
In one example, the processing of the second radar data by the high performance processor may be as shown in fig. 1g, and the processing of the first radar data by the low performance processor may be as shown in fig. 1h, which indicates that the low performance algorithm is simpler and has lower complexity, where the second radar data is a large-scale 1D FFT, i.e. the one-dimensional FFT data, and the first radar data is a small-scale 2D FFT, i.e. the two-dimensional FFT data.
Therefore, the low-power consumption shooting system provided by the embodiment of the application utilizes the high-performance processor and the low-performance processor to analyze and process the radar data with different specifications respectively, so that different processes for different situations are realized, the mutual balance between the low power consumption and the processing performance is realized, and the detection efficiency is improved under the condition of saving the power consumption.
In a second aspect, referring to fig. 2, an embodiment of the present application provides a flowchart of a first image data acquisition method, which is applied to an electronic device, where the electronic device includes a low-performance processor and a high-performance processor, and the method includes:
Step S21: acquiring the first radar data in a low performance detection mode by using the low performance processor; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition; the radar module is switched to a high-performance detection mode after receiving the first switching message, second radar data are acquired in the high-performance detection mode, and the second radar data are sent to the high-performance processor;
the first radar data are acquired and transmitted by the radar module in the low-performance detection mode;
Step S22: switching from a sleep state to a high performance detection mode in response to the first initiation message with a high performance processor; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to a camera under the condition that the second analysis result meets a first preset shooting condition; and enabling the camera to respond to the first shooting message to acquire image data, wherein the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm.
As can be seen from the foregoing, in the image data acquisition method provided by the embodiment of the present application, the radar module acquires first radar data applicable to the low-performance processor in the low-performance detection mode, and sends the first radar data to the low-performance processor, so that the low-performance processor analyzes the first radar data by using a preset low-performance algorithm to obtain a first analysis result, determines whether a preset high-performance starting condition is met based on the first analysis result, determines that the high-performance processor needs to be started if the preset high-performance starting condition is met, starts the high-performance processor and causes the radar module to switch the high-performance detection mode, and re-acquires second radar data applicable to the high-performance processor, so that the high-performance processor entering the high-performance detection mode can analyze the first radar data by using the preset high-performance algorithm to obtain a second analysis result capable of judging whether the camera needs to be started to acquire image data in a field of view, and sends a first shooting message to the camera to enable the camera to acquire the image data in the field of view in time if the camera needs to be judged to be met. It can be appreciated that the high-performance processor is applied to scenes with serious background disturbance, such as scenes of rain clutter caused by strong wind and strong rain, tree leaf and vegetation shaking and the like, and the high-performance processor can obtain higher precision in the scenes by utilizing a preset high-performance algorithm. And aiming at a scene with less serious background disturbance, the low-performance processor can directly trigger the camera to take a picture, namely under the low-performance detection mode, when a first analysis result obtained by analysis of the low-performance processor meets a second preset shooting condition, the low-performance processor sends a second shooting message to the camera so that the camera responds to the second shooting message to acquire image data.
According to the embodiment of the application, the radar module can acquire radar data of different specifications according to the detection mode, the low-performance processor is utilized to perform simple processing based on the preset low-performance algorithm with low power consumption under the condition of simpler visual field, the high-performance processor is restarted to perform complex processing based on the preset high-performance algorithm with high power consumption under the condition of more complex visual field, and the timely conversion between the low-performance detection mode and the high-performance detection mode is realized through the specific condition judgment in the current visual field, so that the system achieves the mutual balance between the low power consumption and the high performance, and the accuracy of the detection result is improved under the condition of saving the power consumption.
In an embodiment of the present application, as shown in fig. 3, an embodiment of the present application provides a flowchart of a second image data acquisition method, where the method further includes:
step S31: after the radar module is switched to a high-performance detection mode by using a low-performance processor and the high-performance processor is switched to the high-performance detection mode, entering a dormant state;
Step S32: transmitting a second start message to the low-performance processor and a second switching message indicating to enter a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition by using the high-performance processor; switching the radar module to a low-performance detection mode after receiving the second switching message;
Step S33: switching from a sleep state to a low performance detection mode in response to the second initiation message with the low performance processor;
Step S34: and the high-performance processor is utilized to enter a dormant state after the radar module is switched to a low-performance detection mode and the low-performance processor is switched to the low-performance detection mode.
As can be seen from the above, in the image data acquisition method provided by the embodiment of the present application, when the second analysis result meets the preset low-performance switching condition, the high-performance processor makes the radar module switch the low-performance detection mode, and starts the low-performance processor to perform analysis processing, so as to reduce erroneous judgment possibly caused by short-time fluctuation in the field of view, and realize timely conversion between the low-performance detection mode and the high-performance detection mode, so that the system achieves the balance between low power consumption and high performance, and thus, the accuracy of the detection result is improved while saving power consumption is achieved.
In one embodiment of the application, the method further comprises:
Transmitting a second photographing message to the camera by using the low-performance processor under the condition that the first analysis result meets a second preset photographing condition; causing the camera to perform image data acquisition in response to the second photographing message.
As can be seen from the above, in the image data acquisition method provided by the embodiment of the present application, when the first analysis result obtained by the low-performance processor in the low-performance detection mode meets the second preset shooting condition, the camera also acquires image data in the field of view, so that the system can timely detect the field of view.
In one embodiment of the application, the method further comprises:
Transmitting a third start message to the communication module by using the high-performance processor under the condition that the second analysis result meets a first preset shooting condition; the communication module is switched from a dormant state to a working state in response to the third starting message, and image data collected by the camera is sent to a subscribing terminal in the working state;
transmitting a fourth start message to the communication module by using the low-performance processor under the condition that the first analysis result meets a second preset shooting condition; and the communication module responds to the fourth starting message and is switched from the dormant state to the working state, and in the working state, the image data collected by the camera is sent to the subscribing terminal.
In view of the foregoing, according to the image data acquisition method provided by the embodiment of the application, after the camera acquires the image data, the image data is sent to the subscription terminal through the communication module, so that the subscription terminal can timely obtain abnormal conditions in the visual field, and timely view the visual field, thereby improving the monitoring efficiency in the visual field.
In one embodiment of the present application, the first radar data is upper layer data of a first specification; the step S21 of analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result, including:
Detecting the signal amplitude of the upper layer data of the first specification by using the low-performance processor to obtain a first analysis result;
The second radar data is bottom data of a second specification, wherein the second specification is greater than the first specification, and the step S22 analyzes the second radar data by using a preset high-performance algorithm to obtain a second analysis result, and includes:
and carrying out power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification by using the high-performance processor to obtain a second analysis result.
Therefore, the image data acquisition method provided by the embodiment of the application utilizes the high-performance processor and the low-performance processor to analyze and process the radar data with different specifications respectively, so that different processes for different situations are realized, the mutual balance between low power consumption and processing performance is realized, and the detection efficiency is improved under the condition of saving power consumption.
In the technical scheme of the application, the related operations of acquiring, storing, using, processing, transmitting, providing, disclosing and the like of the image information are all performed under the authorized condition.
In a third aspect, referring to fig. 4, an embodiment of the present application further provides a schematic structural diagram of an electronic device, including:
A memory 403 for storing a computer program;
a low performance processor 401, configured to implement method steps executed by the low performance processor in any one of the image data acquisition methods according to the present application when executing the program stored in the memory;
the high performance processor 402 is configured to implement the method steps executed by the high performance processor in any one of the image data acquisition methods according to the present application when executing the program stored in the memory.
And the electronic device may further comprise a communication bus and/or a communication interface, through which the processor, the communication interface, and the memory 403 communicate with each other.
The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the electronic device and other devices.
The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
In yet another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when executed by a processor, implements the steps of any of the image data acquisition methods described above.
In a further embodiment of the present application, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the image data acquisition method of any of the above embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a Solid state disk (Solid STATE DISK, SSD), etc.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the method, electronic device, storage medium embodiments, since they are substantially similar to the system embodiments, the description is relatively simple, and references to the parts of the description of the method embodiments are only needed.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (12)

1. A low power consumption photographing system, comprising:
a radar module, a low performance processor, a high performance processor, and a camera;
The radar module is used for: in a low-performance detection mode, acquiring first radar data, and sending the first radar data to the low-performance processor;
The low performance processor is configured to: acquiring the first radar data in a low-performance detection mode; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition;
the radar module is further configured to: switching to a high-performance detection mode after receiving the first switching message; in a high-performance detection mode, acquiring second radar data, and sending the second radar data to the high-performance processor;
The high performance processor is configured to: switching from a sleep state to a high performance detection mode in response to the first initiation message; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to the camera under the condition that the second analysis result meets a first preset shooting condition; the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm;
The camera is used for: and responding to the first shooting message to acquire image data.
2. The system of claim 1, wherein the low performance processor is further configured to: after the radar module is switched to a high-performance detection mode, and the high-performance processor is switched to the high-performance detection mode, entering a dormant state;
The high performance processor is further configured to: sending a second starting message to the low-performance processor and a second switching message representing entering a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition;
The radar module is further configured to: switching to a low performance detection mode after receiving the second switching message;
the low performance processor is further configured to: switching from a sleep state to a low performance detection mode in response to the second initiation message;
The high performance processor is further configured to: and after the radar module is switched into a low-performance detection mode and the low-performance processor is switched into the low-performance detection mode, entering a dormant state.
3. The system of claim 1, wherein the low performance processor is further configured to: sending a second shooting message to the camera under the condition that the first analysis result meets a second preset shooting condition;
The camera is also for: and responding to the second shooting message to acquire image data.
4. A system according to claim 3, wherein the system further comprises: a communication module;
the high performance processor is further configured to: sending a third starting message to the communication module under the condition that the second analysis result meets the first preset shooting condition;
The communication module is used for responding to the third starting message and switching from a dormant state to a working state; in a working state, sending the image data collected by the camera to a subscribing terminal;
The low performance processor is further configured to: sending a fourth starting message to the communication module under the condition that the first analysis result meets a second preset shooting condition;
the communication module is used for responding to the fourth starting message and switching from a dormant state to a working state; and in a working state, sending the image data acquired by the camera to a subscribing terminal.
5. The system of claim 1, wherein the first radar data is upper layer data of a first specification;
The low-performance processor is specifically configured to: performing target detection on the upper layer data of the first specification to obtain a first analysis result;
the second radar data are bottom data of a second specification; wherein the second specification is greater than the first specification;
the high performance processor is specifically for: and performing power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification to obtain a second analysis result.
6. An image data acquisition method, characterized in that it is applied to an electronic device, the electronic device including a low-performance processor and a high-performance processor, the method comprising:
Acquiring the first radar data by using the low-performance processor in a low-performance detection mode, wherein the first radar data are acquired and transmitted by a radar module in the low-performance detection mode; analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result; sending a first starting message to the high-performance processor and a first switching message representing entering a high-performance detection mode to the radar module under the condition that the first analysis result meets a preset high-performance starting condition; the radar module is switched to a high-performance detection mode after receiving the first switching message, second radar data are acquired in the high-performance detection mode, and the second radar data are sent to the high-performance processor;
Switching from a sleep state to a high performance detection mode in response to the first initiation message with a high performance processor; in a high-performance detection mode, acquiring the second radar data, and analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result; sending a first shooting message to a camera under the condition that the second analysis result meets a first preset shooting condition; and enabling the camera to respond to the first shooting message to acquire image data, wherein the energy consumption of the preset low-performance algorithm is lower than that of the preset high-performance algorithm.
7. The method of claim 6, wherein the method further comprises:
The low-performance processor is utilized to enter a dormant state after the radar module is switched to a high-performance detection mode and the high-performance processor is switched to the high-performance detection mode;
Transmitting a second start message to the low-performance processor and a second switching message indicating to enter a low-performance detection mode to the radar module under the condition that the second analysis result meets a preset low-performance switching condition by using the high-performance processor; switching the radar module to a low-performance detection mode after receiving the second switching message;
Switching from a sleep state to a low performance detection mode in response to the second initiation message with the low performance processor;
and the high-performance processor is utilized to enter a dormant state after the radar module is switched to a low-performance detection mode and the low-performance processor is switched to the low-performance detection mode.
8. The method of claim 6, wherein the method further comprises:
Transmitting a second photographing message to the camera by using the low-performance processor under the condition that the first analysis result meets a second preset photographing condition; causing the camera to perform image data acquisition in response to the second photographing message.
9. The method of claim 8, wherein the method further comprises:
Transmitting a third start message to the communication module by using the high-performance processor under the condition that the second analysis result meets a first preset shooting condition; the communication module is switched from a dormant state to a working state in response to the third starting message, and image data collected by the camera is sent to a subscribing terminal in the working state;
transmitting a fourth start message to the communication module by using the low-performance processor under the condition that the first analysis result meets a second preset shooting condition; and the communication module responds to the fourth starting message and is switched from the dormant state to the working state, and in the working state, the image data collected by the camera is sent to the subscribing terminal.
10. The method of claim 6, wherein the first radar data is upper layer data of a first specification; the step of analyzing the first radar data by using a preset low-performance algorithm to obtain a first analysis result includes:
performing target detection on the upper layer data of the first specification by using the low-performance processor to obtain a first analysis result;
The second radar data is bottom data of a second specification, wherein the second specification is larger than the first specification; the step of analyzing the second radar data by using a preset high-performance algorithm to obtain a second analysis result includes:
and carrying out power map calculation, constant false alarm rate CFAR detection and clutter suppression on the bottom data of the second specification by using the high-performance processor to obtain a second analysis result.
11. An electronic device, comprising:
a memory for storing a computer program;
A low performance processor for implementing the method steps performed by the low performance processor in the method of any one of claims 6-10 when executing the program stored on the memory;
A high performance processor for implementing the method steps performed by the high performance processor in the method of any of claims 6-10 when executing a program stored on the memory.
12. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the method of any of claims 6-10.
CN202211682632.1A 2022-12-26 2022-12-26 Low-power consumption shooting system, image data acquisition method and electronic equipment Pending CN118264897A (en)

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