Biological state detection system and method and driving equipment

Abstract

The embodiment of the invention provides a biological state detection system and method and driving equipment, and relates to the field of driving equipment, the system comprises an antenna array and a signal processing system, the antenna array is used for transmitting signals to a first target area and a second target area which are arranged in a spaced mode in the first direction, obtaining a corresponding first echo signal and a corresponding second echo signal; the signal processing system is connected with the antenna array and is used for detecting the biological state of the first target area based on the first echo signal and detecting the biological state of the second target area based on the second echo signal. The system is a single anchor point system, and the biological states of the first target area and the second target area are detected through a beam control technology, so that the occupation of the space in the vehicle can be reduced, and the integration is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of driving equipment, and in particular to a biological state detection system, method and driving equipment. Background Art

[0002] In-vehicle passenger health monitoring (such as heart rate monitoring) is a key research area in the fields of smart cars and autonomous driving, aiming to improve passenger safety and travel experience. A vehicle presence detection system can be installed to implement child presence detection (CPD). Related technologies typically use multiple anchor points to monitor different areas within the vehicle. This approach is complex and requires a large amount of space. Summary of the Invention

[0003] The embodiments of the present application provide a biological state detection system, method and driving device to solve the above-mentioned technical problems.

[0004] In a first aspect, an embodiment of the present application provides a biological state detection system, which is applied to a driving device. The driving device includes a first target area and a second target area, wherein the first target area and the second target area are spaced apart along a first direction. The system includes:

[0005] an antenna array, the antenna array being configured to transmit signals to the first target area and the second target area respectively, and obtain corresponding first echo signals and second echo signals;

[0006] A signal processing system is connected to the antenna array and is used to detect the biological state of the first target area based on the first echo signal and to detect the biological state of the second target area based on the second echo signal.

[0007] In some embodiments, the antenna array comprises:

[0008] a first array, comprising a plurality of first antenna units arranged along the first direction, the first array being configured to transmit a signal to the first target area and acquire the first echo signal;

[0009] A second array, wherein the second array and the first array are spaced apart along a second direction, the second direction intersects with the first direction, the second array comprises a plurality of second antenna units, and the plurality of second antenna units are arranged along the first direction, the second array is used to transmit a signal to the second target area and obtain the second echo signal.

[0010] In some embodiments, the number of the first antenna units is N, the number of the second antenna units is M, and the following conditions are satisfied: M≥4, N≥4.

[0011] In some embodiments, the second array and the first array are spaced apart by a distance d along the second direction, satisfying: d≥2 cm.

[0012] In some embodiments, the system further comprises:

[0013] a printed circuit board, wherein the first array, the second array, and the signal processing system are all arranged on the printed circuit board;

[0014] The printed circuit board is located between or on both sides of the first target area and the second target area.

[0015] In some embodiments, the first array has a first beam deflection angle θ1, and the second array has a second beam deflection angle θ2, satisfying: 0°≤θ1≤40°, -40°≤θ2≤0°.

[0016] In some embodiments, the signal processing system includes:

[0017] a filter connected to the antenna array, configured to filter out noise in the first echo signal to obtain a first intermediate signal, and to filter out noise in the second echo signal to obtain a second intermediate signal;

[0018] an amplifier connected to the filter, configured to enhance the strength of the first intermediate signal to obtain a third intermediate signal, and enhance the strength of the second intermediate signal to obtain a fourth intermediate signal;

[0019] A modem, connected to the amplifier, for extracting a first characteristic signal from the third intermediate signal and a second characteristic signal from the fourth intermediate signal, wherein the first characteristic signal is used to characterize the biological state of the first target area and the second characteristic signal is used to characterize the biological state of the second target area.

[0020] In some embodiments, the signal processing system further includes a detection network, which is pre-trained with multiple types of feature signals and is used to classify the first feature signal and the second feature signal to identify the biological types of the first target area and the second target area.

[0021] In a second aspect, embodiments of the present application further provide a biological state detection method, which is applied to the biological state detection system according to any one of the first aspects, and the method includes:

[0022] transmitting signals to a first target area and a second target area through an antenna array, and acquiring a first echo signal and a second echo signal;

[0023] The biological state of the first target area is detected based on the first echo signal, and the biological state of the second target area is detected based on the second echo signal by a signal processing system.

[0024] In a third aspect, an embodiment of the present application further provides a driving device comprising a biological state detection system as described in any one of the first aspects.

[0025] In this embodiment of the present application, an antenna array transmits signals to a first target area and a second target area of ​​a driving device, respectively, and obtains a first echo signal and a second echo signal. A signal processing system detects the biological state of the first target area based on the first echo signal, and detects the biological state of the second target area based on the second echo signal. This system is a single-anchor system that uses beam steering technology to detect the biological states of the first and second target areas, thereby reducing the space occupied within the vehicle and facilitating integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0027] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0028] Figure 1 Schematic diagram of the overall structure of the biological status detection system according to an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the specific structure of the biological status detection system according to an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the direction of the first array according to an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the direction of the second array according to an embodiment of the present application;

[0032] Figure 5 This is a schematic structural diagram of a signal processing system according to an embodiment of the present application;

[0033] Figure 6Schematic diagram of the overall process of the biological status detection method according to an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 10-antenna array; 11-first array; 111-first antenna unit; 12-second array; 121-second antenna unit; X-first direction; Y-second direction; 20-signal processing system; 21-filter; 22-amplifier; 23-modem; 30-printed circuit board. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] In the embodiments of this application, "at least one" refers to one or more; "a plurality" refers to two or more. In the description of this application, the terms "first," "second," "third," etc. are used only for the purpose of distinguishing descriptions and should not be understood as indicating or implying relative importance or order.

[0038] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, the terms "including," "comprising," "having," and their variations in this specification all mean "including but not limited to," unless otherwise specifically stated.

[0039] It should be noted that in the embodiments of the present application, "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects are in an "or" relationship.

[0040] It should be noted that in the embodiments of the present application, "connection" can be understood as electrical connection, and the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components.

[0041] In-vehicle passenger health status monitoring (such as heart rate monitoring) is a key research area in the smart car and autonomous driving fields, aiming to improve passenger safety and travel experience. With increasing public awareness of health and safety, the demand for in-vehicle health monitoring systems is also growing. Vehicle presence detection systems can be installed to implement child presence detection (CPD). Related technologies primarily utilize a multi-anchor system, which uses different anchor points in different areas to detect biological status. Anchor points can be radar, infrared sensors, or cameras. Different anchor point technologies have their own advantages and disadvantages. For example, radar technology offers high penetration and detection accuracy, but it also increases overall hardware cost and space requirements. Infrared sensors, while less expensive, are significantly affected by ambient light, and detection accuracy is limited by signal interference or obstruction. Camera technology can provide rich visual information, but it raises privacy concerns and limits detection accuracy in the presence of signal interference or obstruction.

[0042] In addition, the use of a multi-anchor system also has the following pain points: First, a multi-anchor system usually requires more hardware equipment, further increasing manufacturing costs. Second, in compact vehicles, space resources are very limited, and the deployment of a multi-anchor system may have a negative impact on passenger comfort and interior design. Third, since each anchor point needs to be installed and debugged independently, and it is also necessary to ensure the coordination between multiple anchor points, the deployment and calibration process of multiple anchor points will be more complicated, which in turn increases the difficulty of maintenance and debugging of the system. Fourth, the simultaneous operation of multiple anchor points may lead to increased system power consumption, which is an issue that cannot be ignored for on-board equipment, especially in electric vehicles, where power consumption directly affects the vehicle's endurance.

[0043] In view of this, the embodiments of the present application provide a biological state detection system, method and driving device, which adopt a single anchor point system and use beam control technology to detect the biological states of the first target area and the second target area, thereby reducing the space occupied in the vehicle and making integration more convenient, thereby solving at least part of the above-mentioned technical problems.

[0044] See also Figure 1 , Figure 1Schematic diagram of the overall structure of the biological state detection system of an embodiment of the present application. The biological state detection system of an embodiment of the present application is applied to a driving device. The driving device may include a first target area and a second target area, and the first target area and the second target area are arranged at intervals along a first direction X. The first direction X may be a direction perpendicular to the extension of a single row of seats. Exemplarily, the first target area and the second target area may respectively be at least part of the seat area of ​​the driving device. For example, in the case where the driving device includes multiple rows of seat areas, the first target area may be the front seat area of ​​the driving device, and the second target area may be the rear seat area of ​​the driving device.

[0045] The biological state detection system includes an antenna array 10 and a signal processing system 20. The antenna array 10 is configured to transmit signals to a first target area and a second target area, respectively, and to obtain corresponding first and second echo signals. The signal processing system 20 is connected to the antenna array 10 and is configured to detect the biological state of the first target area based on the first echo signal and to detect the biological state of the second target area based on the second echo signal.

[0046] With the above solution, antenna array 10 transmits signals to the first and second target areas of the driving device, respectively, obtaining first and second echo signals. Signal processing system 20 detects the biological status of the first target area based on the first echo signal, and detects the biological status of the second target area based on the second echo signal. This system is a single-anchor system that uses beam steering technology to detect the biological status of the first and second target areas, thereby reducing space occupied within the vehicle and facilitating integration.

[0047] See also Figure 2 , Figure 2 Schematic diagram of the specific structure of the biological state detection system of an embodiment of the present application. In some embodiments, the antenna array 10 includes a first array 11 and a second array 12, and the first array 11 and the second array 12 are arranged at intervals along the second direction Y, and the second direction Y intersects with the first direction X. For example, the second direction Y can be a direction extending parallel to a single row of seats. The first array 11 is used to transmit a signal to a first target area and obtain a first echo signal. The second array 12 is used to transmit a signal to a second target area and obtain a second echo signal. The first array 11 includes a plurality of first antenna units 111, and the plurality of first antenna units 111 are arranged along the first direction X. The second array 12 includes a plurality of second antenna units 121, and the plurality of second antenna units 121 are arranged along the first direction X. For example, the plurality of second antenna units 121 can be arranged in a straight line along the first direction X.

[0048] It can be understood that the antenna array 10 of the embodiment of the present application can be located between the first target area and the second target area, or can be located in the first target area or the first target area, or can be located at any position in the vehicle. The anchor point position can be specifically determined according to the space to be detected in the vehicle.

[0049] It is also understood that when there are many rows of seats in a vehicle, the antenna array 10 may further include a third array, which is connected to the signal processing system and is used to transmit signals to the corresponding target area and obtain corresponding echo signals. Furthermore, the antenna array 10 may include a larger number of arrays, which is not specifically limited in this embodiment of the present application.

[0050] Exemplarily, both the first array 11 and the second array 12 may be self-transmitting and self-receiving arrays, that is, each first antenna unit 111 in the first array 11 may transmit and receive signals, and each second antenna unit 121 in the second array 12 may transmit and receive signals.

[0051] In some examples, the number of first antenna elements 111 in the first array 11 is N, where N ≥ 4. This allows for better detection quality. Preferably, N can be equal to 4, thereby better balancing detection performance and the space within the vehicle. Furthermore, the number N of first antenna elements 111 can also be set to be greater than 4, for example, to any of 5, 6, 7, 8, 9, or 10, depending on the space within the vehicle to be detected.

[0052] The number of second antenna units 121 in the second array 12 is M, where M ≥ 4. This allows for better detection quality. Preferably, M can be equal to 4, to better balance detection performance and interior space. Furthermore, the number M of second antenna units 121 can also be set to be greater than 4, for example, to any of 5, 6, 7, 8, 9, or 10, depending on the interior space.

[0053] In some examples, the second array 12 and the first array 11 may be spaced apart by a distance d along the second direction Y, satisfying: d ≥ 2 cm. In this way, mutual influence of signals between the two arrays can be avoided, thereby improving detection accuracy.

[0054] In some examples, the biometric status detection system may further include a printed circuit board 30. The first array 11, the second array 12, and the signal processing system 20 are all disposed on the printed circuit board 30. For example, the printed circuit board 30 may be located between or on both sides of the first target area and the second target area. For example, along the first direction X, the printed circuit board 30 may be located midway between the front and rear seats, or may be located near the front seats on the driving device. Along the second direction Y, the printed circuit board 30 is generally located midway on the driving device.

[0055] See also Figure 3 , Figure 3 Schematic diagram of the direction of the first array of an embodiment of the present application. Specifically, the first array 11 is an antenna array arranged in a straight line. The first array 11 can have a first beam deflection angle θ1, which is used to characterize the direction in which the beam of the first array 11 deviates from the normal. By controlling the amplitude and phase of each first antenna unit 111, the first beam deflection angle θ1 can be flexibly adjusted, and the coverage range of the first array 11 can be adjusted to achieve coverage of the first target area.

[0056] See also Figure 4 , Figure 4 Schematic diagram of the direction of the second array of an embodiment of the present application. Specifically, the second array 12 is an antenna array arranged in a straight line. The second array 12 can have a second beam deflection angle θ2, which is used to characterize the direction in which the beam of the second array 12 deviates from the normal. By controlling the amplitude and phase of each second antenna unit 121, the second beam deflection angle θ2 can be flexibly adjusted, and the coverage range of the second array 12 can be adjusted to achieve coverage of the second target area.

[0057] Taking the example of a first array 11 and a second array 12 each comprising four antenna elements, for ease of description, the four first antenna elements 111 in the first array 11 are labeled ① to ④, arranged in a direction opposite to the first direction X. The four second antenna elements 121 in the second array 12 are labeled ⑤ to ⑧, arranged in the first direction X. By way of example, the amplitude ratio of the four first antenna elements 111 is ①:②:③:④ = 0.6:1:1:0.6. The phase ratio of the four first antenna elements 111 is ①:②:③:④ = 0:-106°:127°:338°. The amplitude ratio of the four second antenna elements 121 is ⑤:⑥:⑦:⑧ = 0.6:1:1:0.6. The phase ratio of the four second antenna elements 121 is ⑤:⑥:⑦:⑧ = 0:-106°:127°:338°.

[0058] When the printed circuit board 30 is positioned midway between the front and rear seats along the first direction X, or positioned near the front seats on the driving device, the first beam deflection angle θ1 and the second beam deflection angle θ2 can satisfy the following conditions: 0° ≤ θ1 ≤ 40°, and -40° ≤ θ2 ≤ 0°. It will be appreciated that the specific values ​​of the first beam deflection angle θ1 and the second beam deflection angle θ2 depend on the location of the printed circuit board 30 and the space to be inspected within the vehicle, and are not specifically limited in this embodiment of the present application.

[0059] See also Figure 5 , Figure 5Schematic diagram of the structure of the signal processing system of an embodiment of the present application. In some examples, the signal processing system 20 may include a filter 21, an amplifier 22 and a modem 23. The filter 21 is connected to the antenna array 10, and is used to filter out noise in the first echo signal to obtain a first intermediate signal, and to filter out noise in the second echo signal to obtain a second intermediate signal. The amplifier 22 is connected to the filter 21, and is used to enhance the strength of the first intermediate signal to obtain a third intermediate signal, and to enhance the strength of the second intermediate signal to obtain a fourth intermediate signal. The modem 23 is connected to the amplifier 22, and is used to extract a first characteristic signal from the third intermediate signal and a second characteristic signal from the fourth intermediate signal, the first characteristic signal being used to characterize the biological state of the first target area, and the second characteristic signal being used to characterize the biological state of the second target area.

[0060] Specifically, the first characteristic signal can be the breathing signal or heartbeat signal of the passengers in the first row, and the second characteristic signal can be the breathing signal or heartbeat signal of the passengers in the second row. Since the first array 11 and the second array 12 transmit electromagnetic wave signals to the corresponding target area, the electromagnetic wave signals will be reflected after encountering the human body. The human chest cavity will produce a small periodic displacement (usually a few millimeters to one centimeter) with the respiratory movement, and this displacement will change the phase and frequency of the reflected wave. Due to the periodic movement of the chest cavity, the frequency of the reflected wave will change slightly. This phenomenon is called the Doppler effect. By detecting the frequency change of the echo (i.e., the reflected wave), the breathing signal or heartbeat signal can be extracted. Based on the first characteristic signal and the second characteristic signal, it can be determined whether there are life characteristics in the corresponding target area, thereby realizing CPD detection.

[0061] For example, the signal processing system 20 can also control the first array 11 and the second array 12 to transmit signals to the first target area and the second target area in sequence, respectively. For example, the first array 11 can be controlled to transmit and receive first, followed by the second array 12. This prevents the detection accuracy from being affected by the echo signal being received by another antenna array.

[0062] As another example, in response to a vehicle door being locked, the signal processing system 20 can control the first array 11 and the second array 12 to sequentially transmit signals to the first target area and the second target area, respectively. This allows detection of any remaining organisms within the vehicle after the door is locked, thereby improving user experience and safety. It is understood that the triggering conditions for signal transmission from the first array 11 and the second array 12 can be configured based on actual needs, such as periodic transmission or transmission upon meeting a set condition, and this is not specifically limited in this embodiment of the present application.

[0063] In some examples, the signal processing system 20 further includes a detection network that is pre-trained using multiple types of characteristic signals and is configured to classify the first characteristic signal to identify the type of organism in the first target area. The detection network is also configured to classify the second characteristic signal to identify the type of organism in the second target area.

[0064] Specifically, the detection network can employ a convolutional neural network and employ a variety of characteristic signals, such as animal, child, and adult respiratory signals, for extensive training. The deep learning algorithm extracts and classifies the characteristic values ​​of these training signals, and the parameters of the detection network are continuously corrected based on the deviation between the predicted and actual values, ultimately improving the prediction accuracy of the detection network. The embodiments of this application do not specifically limit the specific type of detection network.

[0065] In some examples, the signal processing system 20 can be communicatively connected to an on-board electronic system or a cloud server to achieve real-time detection and data transmission. For example, a CAN (Controller Area Network) bus or Ethernet can be used for communication connection to transmit the biological status detection results to the on-board electronic system or the cloud server.

[0066] It is understandable that the biological state detection system of the embodiment of the present application can also be expanded to more areas (such as the third row of seats or more rows of seats) or other physiological signal detection (such as breathing detection). For example, the third row seat area detection can be achieved by adjusting the second beam deflection angle of the second array 12, or adding a third array to the printed circuit board 30 to achieve the third row seat area detection. The embodiment of the present application will not be described in detail here. The biological state detection system of the embodiment of the present application can also integrate a positioning function. As long as the solution meets the concept of this application, it should fall within the protection scope of the embodiment of the present application.

[0067] It can be understood that the system is a single-anchor system that uses beam steering technology to detect the biological status of different target areas, which not only improves detection efficiency, but also reduces the space occupied in the vehicle, making integration more convenient. At the same time, it can significantly reduce hardware costs, reduce system power consumption, and reduce the difficulty of layout in development, so that compact vehicles can also realize CPD functions. In addition, signal processing algorithms can also improve detection accuracy and reduce the impact of signal interference and occlusion.

[0068] Accordingly, the present application also provides a method for detecting a biological state, which is applied to a driving device, and is specifically used in a biological state detection system in a driving device. Figure 6 , Figure 6 The figure is a schematic diagram of the overall process of the biological state detection method according to the embodiment of the present application. Specifically, the method includes the following steps:

[0069] Step 601: transmit signals to a first target area and a second target area through the antenna array 10, and obtain a first echo signal and a second echo signal.

[0070] Step 602 : Detecting the biological state of the first target area based on the first echo signal and detecting the biological state of the second target area based on the second echo signal by the signal processing system 20 .

[0071] In some embodiments, step 602 is specifically implemented by the following steps:

[0072] The noise in the first echo signal is filtered out by the filter 21 to obtain a first intermediate signal, and the noise in the second echo signal is filtered out to obtain a second intermediate signal.

[0073] The amplifier 22 enhances the strength of the first intermediate signal to obtain a third intermediate signal, and enhances the strength of the second intermediate signal to obtain a fourth intermediate signal.

[0074] A first characteristic signal is extracted from the third intermediate signal and a second characteristic signal is extracted from the fourth intermediate signal through the modem 23. The first characteristic signal is used to characterize the biological state of the first target area, and the second characteristic signal is used to characterize the biological state of the second target area.

[0075] It can be understood that the method of the embodiment of the present application adopts a single anchor point system and uses beam control technology to detect the biological status of different target areas, which not only improves the detection efficiency, but also reduces the space occupied in the vehicle, making integration more convenient. At the same time, it can also significantly reduce hardware costs, reduce system power consumption, and reduce the difficulty of layout in development, so that compact vehicles can also realize CPD functions. In addition, the signal processing algorithm can also improve the detection accuracy and reduce the impact of signal interference and occlusion.

[0076] Accordingly, an embodiment of the present application further provides a driving device, which includes the biological state detection system of the aforementioned embodiment. The driving device may include a vehicle.

[0077] It should be noted that the driving device provided in the embodiments of this application shares the same concept as the biometric status detection system described in the preceding embodiments. Any of the structures described in the biometric status detection system embodiments can be configured on the driving device. The specific implementation process is detailed in the biometric status detection system embodiments and will not be further described here. The embodiments, implementation methods, and related technical features of this application may be combined or replaced with one another where no conflict exists.

[0078] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0079] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A biological state detection system, applied to driving equipment, characterized in that: The driving device includes a first target area and a second target area, wherein the first target area and the second target area are spaced apart along a first direction; and the system includes: an antenna array, the antenna array being configured to transmit signals to the first target area and the second target area respectively, and obtain corresponding first echo signals and second echo signals; A signal processing system is connected to the antenna array and is used to detect the biological state of the first target area based on the first echo signal and to detect the biological state of the second target area based on the second echo signal.

2. The biological status detection system according to claim 1, characterized in that: The antenna array comprises: a first array, comprising a plurality of first antenna units arranged along the first direction, the first array being configured to transmit a signal to the first target area and acquire the first echo signal; A second array, wherein the second array and the first array are spaced apart along a second direction, the second direction intersects with the first direction, the second array comprises a plurality of second antenna units, and the plurality of second antenna units are arranged along the first direction, the second array is used to transmit a signal to the second target area and obtain the second echo signal.

3. The biological status detection system according to claim 2, characterized in that: The number of the first antenna units is N, and the number of the second antenna units is M, satisfying: M≥4, N≥4.

4. The biological status detection system according to claim 2, characterized in that: The second array is spaced apart from the first array along the second direction by a distance d that satisfies: d≥2 cm.

5. The biological status detection system according to claim 2, characterized in that: The system further comprises: a printed circuit board, wherein the first array, the second array, and the signal processing system are all arranged on the printed circuit board; The printed circuit board is located between or on both sides of the first target area and the second target area.

6. The biological status detection system according to claim 5, characterized in that: The first array has a first beam deflection angle θ1, and the second array has a second beam deflection angle θ2, satisfying: 0°≤θ1≤40°, -40°≤θ2≤0°.

7. The biological status detection system according to claim 1, characterized in that: The signal processing system comprises: a filter connected to the antenna array, configured to filter out noise in the first echo signal to obtain a first intermediate signal, and to filter out noise in the second echo signal to obtain a second intermediate signal; an amplifier connected to the filter, configured to enhance the strength of the first intermediate signal to obtain a third intermediate signal, and enhance the strength of the second intermediate signal to obtain a fourth intermediate signal; A modem, connected to the amplifier, for extracting a first characteristic signal from the third intermediate signal and a second characteristic signal from the fourth intermediate signal, wherein the first characteristic signal is used to characterize the biological state of the first target area and the second characteristic signal is used to characterize the biological state of the second target area.

8. The biological status detection system according to claim 7, characterized in that: The signal processing system also includes a detection network, which is pre-trained with multiple types of feature signals and is used to classify the first feature signal and the second feature signal to identify the biological type of the first target area and the second target area.

9. A biological state detection method, characterized in that: Applied to the biological state detection system according to any one of claims 1 to 8, the method comprising: transmitting signals to a first target area and a second target area through an antenna array, and acquiring a first echo signal and a second echo signal; The biological state of the first target area is detected based on the first echo signal, and the biological state of the second target area is detected based on the second echo signal by a signal processing system.

10. A driving device, characterized in that: The biological state detection system comprises the biological state detection system according to any one of claims 1 to 8.

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