Intelligent sensing radar monitoring equipment

Abstract

The utility model discloses intelligent sensing radar monitoring equipment, and relates to the technical field of monitoring equipment, the radar monitoring equipment comprises a shell, and the interior of the shell is hollow; the monitoring camera is fixedly arranged on the shell and is used for monitoring a preset monitoring area; the circuit board is fixedly arranged in the shell, and a radar sensing device and a main control device are arranged on the circuit board; the radar sensing device is used for sensing a moving object or a static object in the predetermined monitoring area, and the main control device is connected with the monitoring camera and the radar sensing device through different interfaces and is used for sending the moving object or the static object to the radar sensing device under the condition that the radar sensing device senses an object of a preset type. And controlling the monitoring camera to start video recording. The utility model aims to improve the sensing accuracy of the sensing monitoring equipment.

Description

Technical Field

[0001] This application relates to the field of monitoring equipment technology, and in particular to an intelligent sensing radar monitoring device. Background Technology

[0002] Currently, traditional sensing and monitoring equipment on the market uses infrared pyroelectric sensors for object detection. The infrared pyroelectric sensor solution can only detect moving objects, and they need to reach a certain speed to be recognized. This leads to false alarms and missed detections due to stationary targets, which cannot meet the monitoring needs of complex situations. Utility Model Content

[0003] The purpose of this application is to at least solve one of the technical problems existing in the prior art, and to provide an intelligent sensing radar monitoring device, which aims to improve the sensing accuracy of the sensing monitoring device.

[0004] This application provides an intelligent sensing radar monitoring device, including a housing, a monitoring camera, and a circuit board;

[0005] The shell is hollow inside;

[0006] The surveillance camera is fixedly mounted on the housing and is used to monitor a predetermined monitoring area;

[0007] The circuit board is fixedly installed inside the housing, and the circuit board is equipped with a radar sensing device and a main control device;

[0008] The radar sensing device is used to sense moving or stationary objects in the predetermined monitoring area. The main control device is connected to the monitoring camera and the radar sensing device through different interfaces, and is used to control the monitoring camera to start recording when the radar sensing device senses an object of a preset type.

[0009] According to the technical solution of the embodiments of this application, at least the following beneficial effects are achieved: the radar sensing device is used to sense objects within a predetermined monitoring area, and the radar sensing device can penetrate non-metallic materials, such as plastic, glass, and clothing, and can adapt to complex environments such as rain, fog, and dust, thereby improving the sensing capability of the radar monitoring equipment; furthermore, the radar sensing device can distinguish between moving or stationary objects within the predetermined monitoring area, thereby reducing the false alarm rate and missed alarm rate, and significantly improving the intelligent sensing and response performance of the radar monitoring equipment.

[0010] According to some embodiments of this application, the radar sensing device is connected to the main control device via an I2C interface and a PWM interface. The main control device is also used to control the radar detection parameters of the radar sensing device via the PWM interface.

[0011] According to some embodiments of this application, the circuit board is further provided with a radar driving module, which is connected to the radar sensing device through a UART interface to drive the radar sensing device to perform sensing through the UART interface.

[0012] According to some embodiments of this application, the circuit board is further provided with a clock circuit, which is connected to the radar sensing device. The clock circuit is used to control the radar sensing device to perform object sensing based on a preset frequency; the monitoring camera enters a sleep state when recording stops.

[0013] According to some embodiments of this application, the circuit board is further provided with a WiFi communication module, which is communicatively connected to the main control device and is used to wake up the monitoring camera from the sleep state when the radar sensing device detects an object of a preset type.

[0014] According to some embodiments of this application, a physical shielding mechanism is also included, which is disposed on the surveillance camera and connected to the main control device, for shielding the camera's field of view according to the instructions of the main control device.

[0015] According to some embodiments of this application, the radar sensing device includes a millimeter-wave radar, and the operating band of the millimeter-wave radar includes 24 GHz, 60 GHz and 77 GHz.

[0016] According to some embodiments of this application, the main control device includes an artificial intelligence module and a multi-sensor fusion module, and the main control device is further used to analyze the information collected by the radar sensing device through the artificial intelligence module and the multi-sensor fusion module.

[0017] According to some embodiments of this application, the main control device is further configured to synchronize the sensing time of the radar sensing device and perform coordinate calibration on the sensed object when the radar sensing device senses an object of a predetermined type, so as to control the monitoring camera to start recording the sensed object.

[0018] According to some embodiments of this application, the main control device is further configured to analyze the motion trajectory of the sensed moving object in order to determine whether the type of the sensed moving object corresponds to the preset type.

[0019] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0020] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a schematic block diagram of the structure of an intelligent sensing radar monitoring device provided in one embodiment of this application;

[0023] Figure 2 This is a circuit diagram of an intelligent sensing radar monitoring device provided in one embodiment of this application;

[0024] Figure 3 This is a schematic block diagram of the structure of an intelligent sensing radar monitoring device provided in another embodiment of this application. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0026] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0029] The present application will be further described below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, Figure 1 This is a schematic block diagram of the structure of an intelligent sensing radar monitoring device provided in one embodiment of this application. The radar monitoring device includes a housing, a monitoring camera, and a circuit board.

[0031] The shell is hollow inside;

[0032] The surveillance camera is fixedly mounted on the housing and is used to monitor a predetermined monitoring area;

[0033] The circuit board is fixedly installed inside the housing, and the circuit board is equipped with a radar sensing device and a main control device.

[0034] The radar sensing device is used to detect moving or stationary objects in a predetermined monitoring area. The main control device connects to the monitoring camera and the radar sensing device through different interfaces. When the radar sensing device detects an object of a preset type, it controls the monitoring camera to start recording.

[0035] It is understandable that sensing and monitoring equipment refers to monitoring equipment that can monitor, collect and analyze data on specific areas or objects in real time through sensors and intelligent algorithms. In addition, some sensing and monitoring equipment can also sense and capture various environmental parameters, such as temperature, humidity, light, sound, vibration, etc., and convert this information into electrical or digital signals. Then, through data processing and analysis, it can realize real-time monitoring and intelligent judgment of the monitoring target.

[0036] In this embodiment, the radar monitoring equipment is used to monitor a predetermined monitoring area in real time, so that users can view and understand the situation in the predetermined monitoring area in real time.

[0037] It is foreseeable that radar monitoring equipment can be applied to video camera equipment such as network cameras (IPC), dashcams, and video conferencing systems.

[0038] It is understandable that surveillance cameras are used to monitor a predetermined monitoring area. In other words, surveillance cameras are used to capture images or videos within the visible light range of the predetermined monitoring area. Therefore, surveillance cameras can be basic optical cameras, high-definition cameras that can provide high-resolution images, wide-angle cameras with a large field of view, and intelligent cameras with automatic target tracking, etc.

[0039] In this embodiment, the predetermined monitoring area can be fixed, such as around a specific entrance, window, or important equipment, or it can be dynamic, such as a monitoring range that automatically adjusts according to personnel activity. In some embodiments, when determining the key monitoring areas based on the monitoring purpose and the objects to be protected, the installation location, angle, and field of view of the camera can be considered to ensure that the camera can cover all areas that need to be monitored while avoiding blind spots. After determining the actual areas that need to be monitored, the user can manually draw rectangles, polygons, or other shapes on the camera's field of view or select the predetermined monitoring area through the interface provided by the radar monitoring device's accompanying software or application. In another embodiment, the radar monitoring device includes an intelligent area division function, which can automatically identify the scene captured by the radar monitoring device after installation and automatically determine the predetermined monitoring areas that need to be focused on.

[0040] It is understandable that radar sensing devices are used to sense moving or stationary objects within a predetermined monitoring area. In other words, radar sensing devices can sense objects with moving speed and objects that are stationary within a predetermined monitoring area. Radar sensing devices can include millimeter-wave radar, which can detect objects using electromagnetic waves in the millimeter-wave band and has the characteristics of strong penetration, high resolution, and strong anti-interference ability. They can also include lidar, which detects information such as the distance, speed, and position of target objects by emitting laser beams and receiving the reflected signals. They can also include ultra-wideband radar, microwave radar, ultrasonic radar, etc.

[0041] In this embodiment, the radar sensing device can be a radar device with high sensitivity that can accurately capture minute movements, such as millimeter-wave radar, thereby improving the sensing accuracy of the sensing and monitoring equipment.

[0042] The main control device connects to the surveillance camera and the radar sensing device through different interfaces. The interface of the main control device can be an internal bus interface, such as PCIe or PCI, or a serial interface, such as UART, SPI, or I2C.

[0043] The main control device can serve as an intermediary between surveillance cameras and radar sensing devices. It enables bidirectional communication and mutual control between the two devices. For example, the main control device uses a built-in protocol parsing module to translate video streams from the surveillance camera and point cloud / trajectory data from the radar sensing device into standardized data packets, achieving spatiotemporal synchronization through timestamp alignment. When the radar detects an anomaly, the main control device can immediately adjust the camera's viewing angle to focus on monitoring the abnormal area.

[0044] In addition, the main control device can process the data from the surveillance camera and the radar sensing device separately, and can communicate bidirectionally with the surveillance camera and the radar sensing device respectively, so as to realize intelligent sensing and intelligent monitoring of the radar monitoring equipment.

[0045] For example, the main control device can adjust the angle and focal length of the surveillance camera, set the resolution and frame rate of the surveillance camera, start or stop video stream transmission, and turn on or off the night vision function of the surveillance camera through control commands. The surveillance camera can feed back status information to the main control device, such as the working status of the surveillance camera, the current setting parameters of the surveillance camera, the quality and delay information of the video stream, and alarm events such as motion and intrusion detected by the camera.

[0046] The main control device can adjust the scanning range and angle of the radar sensing device, adjust the detection sensitivity and frequency of the radar sensing device, and start or stop the detection function of the radar sensing device through control commands. The radar sensing device can feed back status information to the main control device, such as the working status of the radar sensing device, the current setting parameters of the radar, the quality of the radar detection data, the position, speed and direction of the target detected by the radar, the type of target identified by the radar, and the abnormal situations detected by the radar.

[0047] Furthermore, it is understandable that radar monitoring equipment can be used to achieve different monitoring purposes in different scenarios. That is, the radar sensing device can perform different actions such as recording or alarming when it detects different types of objects. For example, radar monitoring equipment can be deployed in important areas to detect intrusions by people or vehicles; radar monitoring equipment can also be deployed in important areas to distinguish between drones, animals, or humans, and perform different operations based on different detection results. Therefore, when radar monitoring equipment is used in different scenarios, the radar sensing device can be set to detect different preset types of objects and perform different control functions for different preset types of objects.

[0048] Based on this, after determining the types of objects that the radar sensing device needs to detect in the current application scenario, the monitoring camera can be controlled to start recording when the radar sensing device detects objects of a preset type. For example, the monitoring camera can be started to track and record only when a human silhouette is detected entering a predetermined monitoring area.

[0049] refer to Figure 2 , Figure 2This is a circuit diagram of an intelligent sensing radar monitoring device provided in one embodiment of this application. In this embodiment, the radar used by the radar sensing device is a millimeter-wave radar. The radar sensing device includes a millimeter-wave radar control module U2, which is used to control the operation of the millimeter-wave radar. The main control device includes a main control chip U1, which is connected to the radar sensing device through an I2C interface. That is, the main control chip U1 is connected to the millimeter-wave radar control module U2 through an I2C interface.

[0050] In addition, an external power supply module is also provided on the circuit board. The external power supply module is used to power the radar sensing device and is connected to the power supply port of the millimeter-wave radar control module.

[0051] In some embodiments of the radar monitoring equipment provided in this application, the radar sensing device is connected to the main control device via an I2C interface and via a PWM interface. The main control device is also used to control the radar detection parameters of the radar sensing device via the PWM interface.

[0052] refer to Figure 2 The circuit board is equipped with an I2C communication circuit, which includes resistors R65 and R66. This means that the radar sensing device is connected to the main control device through the I2C interface. Specifically, the main control chip U1 is connected to the SCL and SDA interfaces of the millimeter-wave radar control module U2 through SDA (data line) and SCL (clock line). The I2C communication circuit is configured such that the pull-up resistors of the I2C communication signal lines of the main control chip U1 to the millimeter-wave radar control module U2 are connected to the power supply to ensure signal stability.

[0053] In addition, the main control unit is also used to control the radar detection parameters of the radar sensing device through the PWM interface. That is, the main control chip U1 is connected to the millimeter-wave radar control module U2 through the PWM interface, and controls the pulse width of the transmitted signal of the millimeter-wave radar through PWM modulation, thereby affecting the radar's detection performance, resolution and anti-interference capability.

[0054] In some embodiments of the radar monitoring equipment provided in this application, a radar driving module is also provided on the circuit board. The radar driving module is connected to the radar sensing device through a UART interface to drive the radar sensing device to perform sensing through the UART interface.

[0055] refer to Figure 2In this embodiment, the circuit board is also equipped with a radar driving module, which is an MCUU3 (microcontroller). The MCUU3 is connected to the millimeter-wave radar control module U2 of the radar sensing device through a UART interface. Through the connection between the radar driving module and the radar sensing device, the radar driving module can drive the radar sensing device to perform sensing through the UART interface. In addition, the radar driving module can also configure and control the radar sensing device through the UART interface, as well as perform status feedback and simple result transmission with the radar sensing device.

[0056] In some embodiments of the radar monitoring equipment provided in this application, a clock circuit is also provided on the circuit board. The clock circuit is connected to the radar sensing device and is used to control the radar sensing device to perceive objects based on a preset frequency. The monitoring camera enters a sleep state when recording stops.

[0057] refer to Figure 2 In this embodiment, the circuit board is also provided with a clock circuit, wherein the signal output section of the clock circuit is connected to the millimeter-wave radar control module U2 of the radar sensing device. The clock circuit can control the radar sensing device to perform object sensing based on a preset frequency.

[0058] Understandably, radar monitoring equipment can be powered by mains power or uninterruptible power supply to maintain continuous operation, making it suitable for fixed locations that require 24 / 7 monitoring, such as major traffic routes and perimeters of important facilities. Alternatively, it can be powered by batteries to give the radar monitoring equipment the flexibility of being mobile. Different power supply schemes and operating modes affect the deployment flexibility, battery life, and overall energy consumption of radar monitoring equipment.

[0059] In addition, when radar monitoring equipment is continuously powered by mains power or uninterruptible power supply, it can also be set to operate according to a preset time, such as starting at night or during specific periods, and entering a low-power standby state at other times, thereby balancing monitoring needs and energy consumption. The specific operating time and mode of radar monitoring equipment can be determined according to specific application scenarios and application requirements. In other words, radar monitoring equipment may operate intermittently or continuously. In order to ensure that radar monitoring equipment has a long service life under different usage conditions and achieves energy saving, a clock circuit can be used to enable the radar sensing device to intermittently sense objects based on a preset frequency, such as working for 20ms every minute or every 10 minutes, and the monitoring camera to enter a sleep state when recording stops.

[0060] In one embodiment, to extend equipment lifespan and achieve energy-saving goals while ensuring monitoring effectiveness, the radar sensing device and the surveillance camera can adopt an operation mode combining intermittent operation and a sleep mechanism. Specifically, the radar sensing device can perform periodic object sensing based on a preset frequency, such as starting a scan every few seconds or minutes, while remaining in a low-power state at other times. This not only significantly reduces energy consumption but also reduces mechanical wear and aging of electronic components, thereby extending their lifespan. For example, the radar sensing device can wake up and operate at full capacity when a moving target is detected, and track it, while switching to low-frequency scanning or standby mode when no target is detected. Similarly, the surveillance camera can achieve energy-saving operation through an intelligent sleep mechanism. Specifically, when the monitored scene is static or no abnormal events occur, the camera can stop recording and enter a low-power sleep state, keeping only basic sensors on standby to detect external trigger signals. If the radar sensing device or other sensors detect abnormal activity, the camera will be immediately woken up and start recording to ensure that no critical events are missed.

[0061] Based on this, the collaborative working mechanism can not only reduce the power consumption of the overall system, but also reduce the heat generation and wear and tear caused by the long-term operation of the camera. For example, on a deserted road at night, the radar can scan periodically in a low-frequency mode while the camera remains dormant. When the radar detects a vehicle or pedestrian, it immediately triggers the camera to start recording and tracking the target. After the event ends, the system automatically returns to a low-power state.

[0062] In one embodiment, the power supply and operation modes can be determined by comprehensively considering the characteristics of the scenario, monitoring needs, and environmental conditions. Specifically, for fixed installations requiring continuous monitoring, such as urban traffic management or security of important facilities, mains power or UPS power supply combined with timed operation can be used. This allows for full-power operation during peak hours and reduced operating frequency or sleep mode during low-traffic periods. For mobile or temporary applications, such as field ecological monitoring or emergency security, the working cycle of radar sensing devices and monitoring cameras can be dynamically adjusted to ensure maximum monitoring coverage time with limited power. For example, radar monitoring equipment can also include an energy management module to monitor power status and energy consumption in real time, automatically adjust operating parameters to adapt to different power supply conditions, and automatically extend the radar scanning interval or reduce camera resolution when battery power is low to prioritize the continuous operation of core monitoring functions.

[0063] In some embodiments of the radar monitoring equipment provided in this application, such as Figure 3 As shown, Figure 3This is a schematic block diagram of the structure of an intelligent sensing radar monitoring device provided in another embodiment of this application. The circuit board is also provided with a WiFi communication module, which is connected to the main control device for waking up the monitoring camera from the sleep state when the radar sensing device senses an object of a preset type.

[0064] In this embodiment, the circuit board is also equipped with a WiFi communication module, which is connected to the main control device to enable the radar monitoring equipment to have network communication capabilities and communicate with the monitoring and management platform of the radar monitoring equipment.

[0065] The WiFi communication module is used to wake up the surveillance camera from sleep mode when the radar sensing device detects a preset type of object. In other words, the surveillance camera is in sleep mode when the radar sensing device does not detect the preset type of object, and it will turn from sleep mode to active mode when the radar sensing device detects the preset type of object, in order to reduce the power consumption of the radar monitoring device. Therefore, when the radar sensing device detects a preset type of object, the surveillance camera can be woken up from sleep mode through the WiFi communication module. At the same time, the main control device sends a recording command to the surveillance camera to control the surveillance camera to start recording.

[0066] In one embodiment, the WiFi communication module has a keep-alive signal of about 10mA per minute, so that the entire radar monitoring equipment system can be quickly woken up when recording is required.

[0067] In some embodiments of the radar monitoring equipment provided in this application, a physical shielding mechanism is also included. The physical shielding mechanism is installed on the monitoring camera and connected to the main control device, and is used to shield the camera's field of view according to the instructions of the main control device.

[0068] Understandably, in order to reduce the power consumption of radar monitoring equipment, the monitoring camera is in a sleep state when the radar sensing device does not detect an object of a preset type. Furthermore, in some application scenarios, the radar monitoring equipment needs to have privacy protection functions. Therefore, in this embodiment, the radar monitoring equipment also includes a physical shielding mechanism. The physical shielding mechanism is installed on the monitoring camera and is used to shield the camera's field of view according to the instructions of the main control device. For example, when the radar sensing device does not detect an object of a preset type, the main control device can send a shielding instruction to control the physical shielding mechanism to shield the camera's field of view.

[0069] In one embodiment, the physical shielding mechanism can be located inside the protective cover at the front of the camera lens. It uses a rotating baffle or sliding light shield driven by a micro stepper motor, which is directly embedded in the annular groove at the front edge of the camera housing. This can maintain the appearance integrity of the radar monitoring equipment and prevent external damage. For example, in a hemispherical monitoring camera, the physical shielding mechanism can be hidden in the space between the dome and the lens. When triggered by the main control signal, a micro gear set drives the fan-shaped light shield to slide and rotate along the guide rail to close the field of view. Alternatively, the physical shielding mechanism can be located around the lens of the monitoring camera, using a rotating shield that rotates around the lens. Different rotation angles can control the field of view of the camera.

[0070] In some embodiments of the radar monitoring equipment provided in this application, the radar sensing device includes a millimeter-wave radar, and the operating bands of the millimeter-wave radar include 24 GHz, 60 GHz and 77 GHz.

[0071] Understandably, radar sensing devices include millimeter-wave radar. Millimeter-wave radar achieves millimeter-level distance resolution and centimeter-per-second velocity sensing through the Doppler effect and frequency-modulated continuous wave (FMCW) technology. It has high resolution, can distinguish between two targets at very close range, and can significantly improve the accuracy of monitoring. Millimeter-wave radar can penetrate non-metallic materials (such as plastic, glass, and clothing) and adverse weather conditions such as fog, smoke, and rain, ensuring stable operation in various environments. In addition, millimeter-wave radar can simultaneously detect and track the distance, angle, speed, and micro-motion characteristics (such as breathing and heartbeat) of multiple targets. Millimeter-wave radar can output only point cloud or motion data without recording images or sound, meeting privacy protection requirements. Furthermore, millimeter-wave radar does not emit visible light, so it does not infringe on personal privacy during monitoring, making it suitable for public safety and privacy-sensitive monitoring scenarios. Millimeter-wave radar typically has low power consumption, making it suitable for long-term operation and battery-powered devices.

[0072] Millimeter-wave radar operates in the 24 GHz, 60 GHz, and 77 GHz bands. The 24 GHz band can be used for short-range detection, the 60 GHz band has higher resolution and faster data transmission rate, and can be used in scenarios that require high-precision positioning and high-speed data processing. The 77 GHz band has even higher resolution and faster data transmission rate.

[0073] In some embodiments of the radar monitoring equipment provided in this application, the interfaces connecting the main control device and the radar sensing device include SPI interface and I2C interface, and the interfaces connecting the main control device and the monitoring camera include MIPI interface and CSI interface.

[0074] It is understandable that radar sensing devices typically output structured data, such as target coordinates, velocity, and azimuth. The amount of data is relatively small, but the requirements for real-time performance and stability are high. SPI and I2C are low-latency, high-reliability short-range serial communication protocols. For example, the SPI interface can perform high-speed data transmission and meet the real-time interaction requirements of radar point cloud or target tracking data. Therefore, the interfaces connecting the main control device and the radar sensing device include the SPI interface and the I2C interface.

[0075] Understandably, surveillance cameras typically need to transmit large amounts of image data, such as hundreds of MB to several GB per second. Traditional interfaces (such as USB and parallel LVDS) are insufficient to meet bandwidth requirements. In contrast, the MIPI interface supports multi-channel parallel data transmission with a single-channel rate of up to 1.5Gbps, which can meet the transmission requirements of 1080p@60fps or 4K@30fps video streams. Furthermore, the MIPI interface can use differential signal transmission, providing strong anti-interference capabilities. The CSI interface offers high bandwidth, can handle high-resolution and high-frame-rate video data protocols, and supports multiple data formats such as RAW, YUV, and H.264 without additional transcoding. Therefore, the interfaces connecting the main control device and the surveillance camera include the MIPI interface and the CSI interface.

[0076] In some embodiments of the radar monitoring equipment provided in this application, the main control device includes an artificial intelligence module and a multi-sensor fusion module. The main control device is also used to analyze the information collected by the radar sensing device through the artificial intelligence module and the multi-sensor fusion module.

[0077] It is understood that the main control device is used to process and analyze the information collected by the radar sensing device. The performance of the main control device in processing and analyzing the information collected by the radar sensing device determines the accuracy of the radar monitoring equipment's monitoring and sensing. Therefore, in this embodiment, the main control device includes an artificial intelligence module and a multi-sensor fusion module. The main control device can combine the artificial intelligence module and the multi-sensor fusion module to analyze the information collected by the radar sensing device, such as performing coordinate calibration and time synchronization.

[0078] In one embodiment, the main control device may include an algorithm code library that integrates radar signal chain, AI model, and multi-sensor fusion, and analyze the information collected by the radar sensing device through the algorithm code library.

[0079] In some embodiments of the radar monitoring equipment provided in this application, the main control device is further configured to synchronize the sensing time of the radar sensing device and perform coordinate calibration on the sensed object when the radar sensing device senses an object of a predetermined type, so as to control the monitoring camera to start recording the sensed object.

[0080] Understandably, time synchronization in a radar system refers to ensuring that all devices or components in the system use a unified time reference in order to accurately measure and record the time of events. Radar calculates the distance to a target by measuring the time it takes for electromagnetic waves to travel to and from the target; if the time is not synchronized, the measured distance will be inaccurate. For moving targets, it is necessary to continuously measure their position and time to calculate speed and predict trajectory; time synchronization ensures that the measurements are based on the same time reference, thereby improving tracking accuracy. In addition, the data from radar sensing devices is usually represented in their own coordinate system; in order to fuse this data with the motion state of the sensed object, the radar coordinate system needs to be transformed.

[0081] Understandably, when a radar sensing device detects an object of a predetermined type, the main control device determines that the object detected by the radar sensing device is of the predetermined type by analyzing the information collected by the radar sensing device. At this point, it is necessary to record the detected object. In order to ensure accurate identification of the detected object, the main control device can synchronize the sensing time of the radar sensing device and perform coordinate calibration on the detected object to control the monitoring camera to start recording the detected object. In one embodiment, the main control device can synchronize the sensing time of the radar sensing device and perform coordinate calibration on the detected object by integrating an algorithm code library that integrates radar signal chain, AI model, and multi-sensor fusion. Alternatively, it can combine an artificial intelligence module and a multi-sensor fusion module to synchronize the sensing time of the radar sensing device and perform coordinate calibration on the detected object.

[0082] For example, for coordinate calibration, the main control device can use a deep learning-assisted calibration algorithm to transmit a frequency-modulated continuous wave of a specific frequency through the calibration mode built into the radar sensing device. The receiving end calculates the phase difference and frequency shift based on the Doppler effect, and automatically compensates for the installation angle deviation of the radar antenna array by combining it with a pre-trained neural network model, converting the original point cloud data in the polar coordinate system into the global Cartesian coordinate system. For time synchronization, the main control device can distribute PPS synchronization signals to each radar node through a precision clock generator to ensure that the deviation of all sampling times is less than 100 nanoseconds. At the same time, the IEEE 1588v2 (PTP) protocol stack is embedded in the data link layer to compensate for network transmission delay at the sub-microsecond level.

[0083] In some embodiments of the radar monitoring equipment provided in this application, the main control device is also used to analyze the motion trajectory of the sensed moving object in order to determine whether the type of the sensed moving object corresponds to a preset type.

[0084] Understandably, radar sensing devices are used to detect moving or stationary objects within a predetermined monitoring area. In other words, the main control device analyzes the information collected by the radar sensing device to determine whether an object in the predetermined monitoring area is in a running or stationary state. To enable functions such as tracking and recording the sensed objects, and to improve the accuracy of analyzing the types of sensed objects, the main control device also analyzes the motion trajectory of sensed moving objects to determine whether the type of sensed moving object corresponds to a preset type. For example, by analyzing the information collected by the radar sensing device, the main control device can distinguish the motion trajectories of people, animals, and objects blown by the wind. Preset types of objects include human bodies. Thus, the monitoring camera is activated to track and record only when a human silhouette is detected entering the predetermined monitoring area.

[0085] In some embodiments of the radar monitoring equipment provided in this application, the radar sensing device is also used to sense living bodies in a predetermined monitoring area.

[0086] It is understandable that radar sensing devices can include millimeter-wave radar, which can simultaneously detect and track the distance, angle, speed and micro-motion characteristics of multiple targets. Therefore, radar sensing devices are also used to sense living beings in a predetermined monitoring area. For example, radar sensing devices can identify living beings through vital signs such as breathing and heartbeat, preventing photo or video spoofing attacks.

[0087] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A smart sensing radar monitoring device, characterized in that, include: A housing, wherein the interior of the housing is hollow; A surveillance camera is fixedly mounted on the housing and is used to monitor a predetermined monitoring area; A circuit board is fixedly installed inside the housing, and the circuit board is equipped with a radar sensing device and a main control device. The radar sensing device is used to sense moving or stationary objects in the predetermined monitoring area. The main control device is connected to the monitoring camera and the radar sensing device through different interfaces, and is used to control the monitoring camera to start recording when the radar sensing device senses an object of a preset type.

2. The radar monitoring equipment according to claim 1, characterized in that, The radar sensing device is connected to the main control device via an I2C interface and a PWM interface. The main control device is also used to control the radar detection parameters of the radar sensing device via the PWM interface.

3. The radar monitoring equipment according to claim 1, characterized in that, The circuit board is also equipped with a radar driving module, which is connected to the radar sensing device through a UART interface to drive the radar sensing device to perform sensing through the UART interface.

4. The radar monitoring equipment according to claim 1, characterized in that, The circuit board is also equipped with a clock circuit, which is connected to the radar sensing device. The clock circuit is used to control the radar sensing device to sense objects based on a preset frequency. The surveillance camera enters sleep mode when recording stops.

5. The radar monitoring equipment according to claim 4, characterized in that, The circuit board is also equipped with a WiFi communication module, which is connected to the main control device and is used to wake up the monitoring camera from the sleep state when the radar sensing device detects an object of a preset type.

6. The radar monitoring equipment according to claim 1, characterized in that, It also includes a physical shielding mechanism, which is installed on the surveillance camera and connected to the main control device, and is used to shield the camera's field of view according to the instructions of the main control device.

7. The radar monitoring equipment according to claim 1, characterized in that, The radar sensing device includes a millimeter-wave radar, and the operating bands of the millimeter-wave radar include 24 GHz, 60 GHz and 77 GHz.

8. The radar monitoring equipment according to claim 1, characterized in that, The main control device includes an artificial intelligence module and a multi-sensor fusion module. The main control device is also used to analyze the information collected by the radar sensing device through the artificial intelligence module and the multi-sensor fusion module.

9. The radar monitoring device according to claim 8, characterized in that, The main control device is also used to synchronize the sensing time of the radar sensing device and perform coordinate calibration on the sensed object when the radar sensing device senses an object of a predetermined type, so as to control the monitoring camera to start recording the sensed object.

10. The radar monitoring device according to claim 9, characterized in that, The main control device is also used to analyze the motion trajectory of the sensed moving object in order to determine whether the type of the sensed moving object corresponds to the preset type.

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