Hand-held detector of radar and detection method

Abstract

The embodiment of the invention discloses a handheld radar detector and a detection method. Comprising a detector integration module used for measuring a distance signal between a detected radar and a hand-held detector and assisting in aligning the detected radar and the hand-held detector; the micro-strip array antenna module is used for receiving a plurality of detection signals transmitted by the detected radar and converting the plurality of detection signals into a plurality of conduction signals; the radio frequency envelope detection module is used for receiving and processing the plurality of conduction signals to obtain a plurality of detection voltage signals; the signal processing module is used for receiving the detection voltage signal, performing analog-to-digital conversion to obtain a digital signal, and processing the digital signal to obtain a transmitting power signal of the detected radar; and the display control module is used for receiving and processing the transmitting power signal of the detected radar and the distance signal between the detected radar and the handheld detector to obtain a detection result, and displaying the detection result in response to the operation of a user.

Description

Technical Field

[0001] The present invention relates to the field of radar technology, and more particularly to a handheld radar detector and a detection method. Background Art

[0002] Radar technology is currently being applied in many scenarios. For example, radars operating in the 77 GHz and 24 GHz frequency bands are widely used in vehicle assisted driving systems. As active devices, radars' internal electronic components age over time, causing performance degradation. When component performance deteriorates to a certain extent, the radar's overall performance will no longer meet detection requirements, rendering the microwave sensor data source for the assisted driving system ineffective and impacting vehicle safety.

[0003] Traditional automotive radar testing methods mostly rely on large, fixed-mounted testing equipment. While these devices offer high accuracy, they suffer from bulk, complexity, and poor portability, making them difficult to meet the demands of rapid on-site testing. Furthermore, with the continued expansion of the automotive market and advancements in automotive radar technology, the demand for automotive radar test equipment is also growing. There is a need for equipment that can efficiently, accurately, and conveniently perform automotive radar testing. Summary of the Invention

[0004] An object of the present invention is to provide a handheld radar detector and a detection method to solve at least one of the problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A first aspect of the present invention provides a handheld radar detector, comprising:

[0007] A detector integrated module, used to measure the distance signal between the radar under test and the handheld detector and to assist in aligning the radar under test and the handheld detector;

[0008] a microstrip array antenna module, configured to receive a plurality of detection signals transmitted by the radar under test and convert the plurality of detection signals into a plurality of conducted signals;

[0009] a radio frequency envelope detection module, configured to receive the plurality of conducted signals and process them to obtain a plurality of detection voltage signals;

[0010] a signal processing module, configured to receive the detection voltage signal and perform analog-to-digital conversion to obtain a digital signal, and process the digital signal to obtain a transmission power signal of the radar under test;

[0011] The display control module is used to receive the transmission power signal of the measured radar and the distance signal between the measured radar and the handheld detector, process them to obtain a detection result, and display the detection result in response to the user's operation.

[0012] Optionally, the microstrip array antenna module includes a plurality of microstrip antennas with different operating frequency ranges, and the plurality of microstrip antennas with different operating frequency ranges are used to receive a corresponding plurality of detection signals and convert the plurality of detection signals into a plurality of conducted signals.

[0013] Optionally, the RF envelope detection module includes a channel selection unit and a plurality of RF envelope detection units corresponding one-to-one to the plurality of microstrip antennas of different operating frequencies, each of the RF detection units includes a filter, a limiter and a detector; wherein

[0014] The filter is used to receive the conducted signal and process it to obtain a filtered signal;

[0015] The limiter is used to receive the filtered signal and process it to obtain a limited signal;

[0016] The detector is used to receive the amplitude limiting signal and process it to obtain the detection voltage signal;

[0017] The channel selection unit is configured to receive the plurality of detection voltage signals output by the plurality of RF envelope detection units, and select and output one of the plurality of detection voltage signals according to a first control signal sent by the display control module.

[0018] Optionally, the signal processing module includes an analog-to-digital conversion unit, a denoising unit, an average calculation unit and a conversion unit; wherein

[0019] The analog-to-digital conversion unit is used to receive the detection voltage signal output by the channel selection unit and perform analog-to-digital conversion to obtain a digital signal;

[0020] The denoising unit is configured to receive the digital signal and process it to obtain a digital envelope signal;

[0021] The average calculation unit is used to receive the digital envelope signal and process it to obtain a digital detection voltage signal;

[0022] The conversion unit is used to receive the digital detection voltage signal and process it to obtain the transmission power signal of the radar under test.

[0023] Optionally, a standard power source is used to transmit a standard power signal to the RF envelope detection module to obtain a standard detection voltage signal, so that the signal processing module obtains a standard detection result corresponding to the standard power signal according to the standard detection voltage signal, and enables the handheld detector to be calibrated according to the standard detection result.

[0024] Optionally, the detector integrated module includes a camera, a laser ranging probe and a plurality of laser emission probes; wherein

[0025] The camera is used to collect image signals of the radar under test and the surrounding environment of the radar under test;

[0026] The laser ranging probe is used to measure the distance signal between the radar under test and the handheld detector;

[0027] The multiple laser emitting probes are used to emit multiple laser beams to the surface of the radar under test according to the second control signal sent by the display control module.

[0028] Optionally, the display control module includes a processor and a touch screen; wherein

[0029] The processor is configured to receive the image signal, the distance signal, and the transmission power signal of the radar under test, and process the distance signal and the transmission power signal of the radar under test to obtain a detection result; and is further configured to output a first control signal and a second control signal according to a user operation;

[0030] The touch screen is used to receive and display the detection result and receive the user's operation.

[0031] Optionally, the display control module includes a multi-channel DC voltage conversion unit, a battery and a charging management unit; wherein

[0032] The charging management unit is used to monitor and control the charging of the battery and automatically switch to the external power supply mode when the external power supply is valid;

[0033] The battery is used to provide a DC voltage to the multi-channel DC voltage conversion unit;

[0034] The multi-channel DC voltage conversion unit is used to convert the DC voltage into the power supply voltage required by each module.

[0035] Optionally, a data transmission and storage module is used to store or export the detection result in response to a user operation;

[0036] A power management module is used to supply power to the detector integration module, the microstrip array antenna module, the radio frequency envelope detection module, the signal processing module, the display control module and the data transmission and storage module.

[0037] A second aspect of the present invention provides a radar detection method using the handheld detector provided by the first aspect of the present invention, the method comprising:

[0038] Using the detector integrated module to measure the distance signal between the radar under test and the handheld detector and assist in aligning the radar under test and the handheld detector;

[0039] Using a microstrip array antenna module to receive a plurality of detection signals transmitted by the radar under test and converting the plurality of detection signals into a plurality of conducted signals;

[0040] Using a radio frequency envelope detection module to receive the multiple conducted signals and process them to obtain multiple detection voltage signals;

[0041] Using a signal processing module to receive the detection voltage signal and perform analog-to-digital conversion to obtain a digital signal, and processing the digital signal to obtain a transmission power signal of the radar under test;

[0042] The display control module receives and processes the transmission power signal of the radar under test and the distance signal between the radar under test and the handheld detector to obtain a detection result, and displays the detection result in response to the user's operation.

[0043] The beneficial effects of the present invention are as follows:

[0044] The technical solution described in the present invention is that the detector adopts a handheld design, is compact and lightweight, and is easy to carry to any site where testing is required, which greatly improves the flexibility and response speed of the test. It does not rely on large fixed equipment, and can achieve efficient testing of vehicle-mounted radars, for example. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0046] Figure 1 A schematic diagram showing the system structure of a handheld radar detector provided by an embodiment of the present invention is shown.

[0047] Figure 2 A front view of a handheld radar detector provided by an embodiment of the present invention is shown.

[0048] Figure 3 A right side view of a handheld radar detector provided by an embodiment of the present invention is shown.

[0049] Figure 4 A rear view of a handheld radar detector provided by an embodiment of the present invention is shown.

[0050] Figure 5 A left side view of a handheld radar detector provided by an embodiment of the present invention is shown.

[0051] Figure 6 A schematic diagram showing the alignment of a handheld radar detector provided by an embodiment of the present invention with the surface of the radar to be measured is shown.

[0052] Figure 7 A schematic diagram illustrating a detection method of a handheld radar detector provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the present invention, the present invention will be further described below in conjunction with the embodiments and drawings. Similar components in the drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the following specific description is illustrative rather than restrictive and should not be used to limit the scope of protection of the present invention.

[0054] Traditional automotive radar testing methods mostly rely on large, fixed-mounted testing equipment. While these devices offer high accuracy, they suffer from bulk, complexity, and poor portability, making them difficult to meet the demands of rapid on-site testing. Furthermore, with the continued expansion of the automotive market and advancements in automotive radar technology, the demand for automotive radar test equipment is also growing. There is a need for equipment that can efficiently, accurately, and conveniently perform automotive radar testing.

[0055] In view of this, if Figure 1 As shown, one embodiment of the present invention provides a handheld detector for a radar, including a detector integration module for measuring a distance signal between the radar under test and the handheld detector and assisting in aligning the radar under test and the handheld detector; a microstrip array antenna module for receiving a plurality of detection signals emitted by the radar under test and converting the plurality of detection signals into a plurality of conducted signals; a radio frequency envelope detection module for receiving the plurality of conducted signals and processing them to obtain a plurality of detection voltage signals; a signal processing module for receiving the detection voltage signals and performing analog-to-digital conversion to obtain digital signals, and processing the digital signals to obtain a transmission power signal of the radar under test; and a display control module for receiving the transmission power signal of the radar under test and a distance signal between the radar under test and the handheld detector and processing them to obtain a detection result, and displaying the detection result in response to a user's operation.

[0056] For example, the handheld radar detector provided in this embodiment is used for detecting vehicle-mounted radars and can be called a handheld detector for vehicle-mounted radars.

[0057] In a specific example, the handheld detector includes the following modules: signal reception, radio frequency envelope detection, signal processing, data display and control, power management, and data transmission and storage.

[0058] Furthermore, the signal receiving includes an antenna module: the detection signal emitted by the vehicle-mounted radar under test is received through the microstrip array antenna module integrated inside the detector, including a 77GHz array microstrip antenna and a 24GHz array microstrip antenna.

[0059] It should be noted that 77 GHz actually includes 76 GHz to 80 GHz; 24 GHz actually includes 24 GHz to 24.5 GHz.

[0060] Furthermore, signal reception includes signal conversion: converting the received detection signal into a conduction signal to provide a basis for subsequent processing.

[0061] Furthermore, RF envelope detection: the received RF signal (i.e., the conducted signal) is sent to the RF envelope detection module, which detects the high-frequency signal envelope and outputs it in the form of voltage to achieve preliminary signal processing and provide a signal form that is easy to process for subsequent signal processing.

[0062] It should be noted that the high-frequency signal in this embodiment is not limited to the frequency of the radio frequency signal, and any signal that has not been demodulated is called a high-frequency signal.

[0063] Furthermore, the signal processing includes A / D acquisition: the signal processing module performs A / D acquisition on the detection voltage output by the RF envelope detection module and converts the analog signal into a digital signal.

[0064] Furthermore, signal processing includes noise filtering: after filtering out noise in the digital domain, a low-noise digital envelope signal is formed, thereby improving the quality of the signal.

[0065] Furthermore, signal processing includes computational conversion: through averaging calculation and voltage-to-power conversion, accurate measurement results of the radar transmission power are obtained, ensuring the accuracy and reliability of the measurement.

[0066] Furthermore, data display and control include display format: the display control module uses the integrated ARM processor to display the processed data in the form of images, tables, and curves on the touch screen, intuitively showing key information such as the spatial position relationship between the detector and the tested radar, the received signal strength, and the received signal envelope.

[0067] Furthermore, data display and control include user interaction: providing a user interaction interface that allows users to set up equipment, calibrate, and view and export measurement results, facilitating user operation and data analysis.

[0068] In a specific example, the measurement result includes the equivalent radiated power of the measured radar and the polarization mode of the measured radar.

[0069] The detector of this embodiment adopts a handheld design with a compact size and light weight, and is easy to carry to any site where testing is required, which greatly improves the flexibility and response speed of the test. It does not rely on large fixed equipment, and can achieve efficient testing of vehicle-mounted radar, for example.

[0070] In a possible implementation, the system further includes: a data transmission and storage module, configured to store or export the detection results in response to a user's operation; a power management module, configured to supply power to the detector integration module, the microstrip array antenna module, the RF envelope detection module, the signal processing module, the display control module, and the data transmission and storage module;

[0071] In a specific example, power management includes battery monitoring: the power management module is responsible for monitoring the large-capacity lithium battery, monitoring the battery status in real time, and ensuring the normal operation of the battery.

[0072] Furthermore, power management includes charging control: charging control of the lithium battery, and automatically switching to external power supply mode when external power supply is available, thereby improving the portability and flexibility of the device.

[0073] Furthermore, power management includes power supply: ensuring the power supply of the equipment during long-term use to meet the user's testing needs.

[0074] In a specific example, data transmission and storage include peripheral interfaces: the detector provides multiple peripheral interfaces such as SD card and USB, which facilitate users to export measurement data to external devices for data analysis and processing.

[0075] Furthermore, data transmission and storage include data storage: it supports the storage of measurement data, and users can record the measurement results in the form of pictures, tables, curves, etc. in user-named files for subsequent viewing and analysis.

[0076] In a specific example, the detector supports remote control and data upload functions. The connection method of the remote control and data upload functions is: the rapid detection system supports remote control and data upload functions, and establishes a connection with a remote server or mobile device through an Internet port or a wireless communication module.

[0077] Furthermore, remote control and data upload functions are realized: real-time upload of test data, remote monitoring and equipment status diagnosis are realized, which improves test efficiency and convenience. Users can view test data and equipment status in real time at the remote end and conduct data analysis and processing in a timely manner.

[0078] This embodiment supports remote transmission function, facilitates users to perform data analysis and comparison, and improves the intelligence and automation level of the test.

[0079] In a possible implementation, the microstrip array antenna module includes a plurality of microstrip antennas with different operating frequency ranges, and the plurality of microstrip antennas with different operating frequency ranges are used to receive corresponding plurality of detection signals and convert the plurality of detection signals into a plurality of conducted signals.

[0080] In one possible implementation, the RF envelope detection module includes a channel selection unit and multiple RF envelope detection units corresponding one-to-one to the multiple microstrip antennas of different operating frequencies. Each of the RF detection units includes a filter, a limiter, and a detector. The filter is configured to receive the conducted signal and process it to obtain a filtered signal. The limiter is configured to receive the filtered signal and process it to obtain a limited signal. The detector is configured to receive the limited signal and process it to obtain the detection voltage signal. The channel selection unit is configured to receive multiple detection voltage signals output by the multiple RF envelope detection units and select one of the multiple detection voltage signals for output based on a first control signal sent by the display control module.

[0081] In one specific example, channel selection is achieved using a single-pole, multi-throw (SPMT) switch, such as a single-pole, double-throw (SPDT) switch. Two detection voltages are input to the two input terminals of the SPDT switch, respectively. A controller uses logic-level signals to connect the common terminal of the SPDT switch to the two input terminals, thereby enabling signal selection.

[0082] In one possible implementation, the signal processing module includes an analog-to-digital conversion unit, a denoising unit, an average calculation unit, and a conversion unit; wherein the analog-to-digital conversion unit is used to receive the detection voltage signal output by the channel selection unit and perform analog-to-digital conversion to obtain a digital signal; the denoising unit is used to receive the digital signal and process it to obtain a digital envelope signal; the average calculation unit is used to receive the digital envelope signal and process it to obtain a digital detection voltage signal; and the conversion unit is used to receive the digital detection voltage signal and process it to obtain a transmission power signal of the radar under test.

[0083] In one possible implementation, the present invention further includes: a standard power source, configured to transmit a standard power signal to the RF envelope detection module to obtain a standard detection voltage signal, so that the signal processing module obtains a standard detection result corresponding to the standard power signal based on the standard detection voltage signal, and the handheld detector is calibrated based on the standard detection result.

[0084] In a specific example, the working mode of the detector is divided into a calibration mode and a measurement mode;

[0085] Furthermore, the calibration mode includes a standard power source: the detector has a built-in standard power source, which has high stability and the power fluctuation is less than 0.2dB during the entire detector life cycle.

[0086] Furthermore, the calibration mode includes a calibration function: the user can calibrate the power measurement accuracy of the detector through the calibration mode to ensure the accuracy of the measurement results.

[0087] Furthermore, the calibration mode includes calibration timing: users can select the calibration time based on usage conditions and measurement accuracy requirements. Generally speaking, if the usage environment has not changed significantly and the interval between two power-on tests is not long, calibration is not necessary. However, if the measurement environment has changed significantly or the tester has not been used for an extended period of time (e.g., more than a month), it is recommended that the user perform a power calibration after powering it on.

[0088] Furthermore, the calibration mode includes a calibration method: using a standard power source as a reference and switching internal RF channels, the detector can calibrate its own power measurement accuracy. The calibration process can be completed automatically or manually triggered according to user-defined conditions.

[0089] In a specific example, the measurement mode includes measurement information acquisition: in the measurement mode, the user can quickly obtain and display key information such as the spatial position relationship between the detector and the tested radar, the received signal strength, and the received signal envelope.

[0090] Furthermore, the measurement mode includes data logging: this information will be recorded in user-named files in the form of pictures, tables, curves, etc., supporting the recording and comparison of multiple measurement data, making it easier for users to analyze data and judge the working status of the radar.

[0091] Further, such as Figure 6 As shown, Figure 6 A is a schematic diagram of the detector and the measuring plane of the detector; B is a schematic diagram of the alignment of the radar under test and the detector; C is a schematic diagram of the non-alignment of the radar under test and the detector.

[0092] Furthermore, the measurement mode includes laser aiming: using multi-point laser aiming, the detector emits four parallel laser beams, generating four light spots on the test radar aperture. The shape of the tested radar may have a certain arc surface, but they are all axisymmetric figures. As long as the detector is aligned with the test radar aperture, the laser spot will fall within the positioning circle of the detector's plane image, ensuring the accuracy of the measurement.

[0093] In a specific example, a handheld tester has an integrated standard power source. Calibration involves measuring the power of the internal standard power source and using this as a benchmark to evaluate the power of the external input signal.

[0094] In one possible implementation, the detector integrated module includes a camera, a laser ranging probe and multiple laser emitting probes; wherein the camera is used to collect image signals of the radar under test and the surrounding environment of the radar under test; the laser ranging probe is used to measure the distance signal between the radar under test and the handheld detector; the multiple laser emitting probes are used to emit multiple lasers to the mouth surface of the radar under test according to the second control signal issued by the display control module. If the light spots of the multiple lasers in the display control module all fall into the preset multiple positioning circles, the radar under test and the handheld detector are aligned.

[0095] In a specific example, the camera has a video recording function that can record the conditions of the radar under test and its surrounding environment in real time during the detection process, providing intuitive video data for subsequent data analysis and troubleshooting.

[0096] In a specific example, the measurement mode uses a multi-point laser aiming method. The detector emits four parallel laser beams, generating four light spots on the surface of the radar under test. The shape of the radar under test may have a certain arc surface, but they are all axially symmetrical figures. As long as the detector is aligned with the surface of the radar under test, the laser spot will fall in the positioning circle of the detector's plane image.

[0097] In one possible implementation, the display control module includes a processor and a touch screen; wherein the processor is used to receive the image signal, the distance signal, and the transmission power signal of the radar under test, and process the distance signal and the transmission power signal of the radar under test to obtain a detection result; and is also used to output a first control signal and a second control signal according to a user's operation; and the touch screen is used to receive and display the detection result and receive the user's operation.

[0098] The detector in this embodiment is equipped with an intuitive and easy-to-use touch screen interface and a user-friendly operation design, allowing users to easily get started and quickly complete testing tasks; at the same time, it provides rich help documents and video tutorials and other resources to help users better understand and use the detector.

[0099] In a specific example, the detector supports multiple test modes and parameter configuration options. Test mode: users can select different test modes through the touch screen interface, such as quick scan, deep analysis, custom test, etc. Users can select different test modes according to actual needs.

[0100] Furthermore, parameter configuration: users can adjust test parameters such as test frequency range, signal gain, scanning speed, etc. through the touch screen interface. The flexible test mode and parameter configuration options enable the detector to adapt to the testing needs of vehicle-mounted radars of different models and specifications.

[0101] This embodiment integrates multiple test modes and parameter configuration options, which can cover the test requirements of vehicle-mounted radars of different models and specifications. Through high-precision testing technology and algorithms, the accuracy and reliability of the test results are ensured, providing a strong guarantee for the safety performance of the vehicle.

[0102] In one possible implementation, the display control module includes a multi-channel DC voltage conversion unit, a battery, and a charging management unit; wherein the charging management unit is used to monitor and control charging of the battery, and automatically switch to an external power supply mode when the external power supply is valid; the battery is used to provide a DC voltage to the multi-channel DC voltage conversion unit; and the multi-channel DC voltage conversion unit is used to convert the DC voltage into the power supply voltage required by each module.

[0103] The tester of this embodiment has a built-in intelligent battery management system and data processing system, which can monitor the battery status and test data in real time, automatically save the test configuration and results, and reduce the complexity and error rate of manual operation.

[0104] In one possible implementation, the detector includes a shell, a touch screen arranged on the front of the shell, and waterproof rubber caps installed on the left and right sides of the touch screen respectively. The waterproof rubber caps are fixed to the shell by fixing bolts, and a charging port, an SD slot, a USB port and a power switch are installed inside the waterproof rubber cap on one side, and a debugging port and a network port are provided inside the waterproof rubber cap on the other side.

[0105] In a specific example, Figure 2 As shown, Figure 3 As shown, Figure 4 As shown and Figure 5 As shown, the detector includes a shell 1, a touch screen 2, a waterproof rubber cap 3, a fixing bolt 4, a debugging interface 5, a network port 6, a camera 7, a detector integrated structure 8, a power switch 9, a laser ranging probe 81, a laser emission probe 82, and a Ka-band detection transceiver antenna 83 (such as a microstrip array antenna module).

[0106] Furthermore, a camera and a detector integrated structure are installed on the shell of the detector. The detector integrated structure includes a Ka-band detection transceiver antenna inside the shell, a laser ranging probe installed directly below the shell, and laser transmitter heads installed at the four corners of the shell.

[0107] Furthermore, the housing 1 is made of rubber-coated aluminum alloy, offering high strength, waterproofing, dustproofing, and drop resistance, enabling stable performance in harsh field testing environments. With dimensions of 280mm long, 185mm wide, and 40mm thick, the device is compact and easy to hold.

[0108] The detector housing of this embodiment is made of high-strength, waterproof, dustproof and drop-resistant materials, and can maintain stable performance in harsh on-site testing environments; in addition, strict quality control and testing verification ensure the reliability and durability of the detector, reducing the user's maintenance costs and risks.

[0109] Furthermore, the touch screen 2 is located on the front of the housing 1 and adopts a 10.1-inch capacitive touch screen, providing an intuitive and easy-to-use operation interface, which facilitates users to set up the device, calibrate, and view and export measurement results.

[0110] Furthermore, a waterproof rubber cap 3 is installed on the left and right sides of the touch screen 2 to protect the internal interface and prevent water and dust from entering, ensuring the normal use of the detector in various environments.

[0111] Furthermore, it is fixed to the housing 1 by fixing bolts 4, which is firm and reliable.

[0112] Furthermore, the charging port, SD slot, USB port and power switch 9 are located inside the waterproof rubber cap 3 on one side, making it convenient for users to perform charging, data storage and device switching operations.

[0113] Furthermore, the debugging interface 5 and the network port 6 are located inside the waterproof rubber cap 3 on the other side. The debugging interface 5 is used for debugging and maintenance of the equipment, and the network port 6 can connect the detector to a remote server or mobile device, supporting remote control and data upload functions.

[0114] Furthermore, the camera 7 is installed on the housing 1 and has a video recording function. It can record the conditions of the tested radar and its surrounding environment in real time during the detection process, providing intuitive video data for subsequent data analysis and troubleshooting.

[0115] Furthermore, the detector integrated structure 8 includes a Ka-band detection transceiver antenna: located inside the housing, for receiving the detection signal transmitted by the vehicle-mounted radar under test;

[0116] Furthermore, the detector integrated structure 8 includes a laser ranging probe: installed directly below the shell, it can measure the distance between the detector and the tested radar to ensure the accuracy of the measurement.

[0117] Furthermore, the detector integrated structure 8 includes a laser emission head: installed at the four corners of the shell, used to emit four parallel laser beams in the measurement mode, generate four light spots on the surface of the tested radar, and realize the alignment of the detector and the tested radar.

[0118] In one possible implementation, a heat dissipation system is also provided inside the shell, and the heat dissipation system includes a heat sink and a fan. The heat sink is in close contact with the heating element in the detector integrated structure, and the fan is connected to the external environment through the ventilation port of the shell.

[0119] In a specific example, the heat dissipation system of the detector includes a heat sink: a heat sink is provided inside the shell, which is in close contact with the heating element in the detector integrated structure and can effectively conduct heat away.

[0120] Furthermore, the heat dissipation system includes a fan: the fan is connected to the external environment through the ventilation holes of the housing, thereby accelerating the dissipation of heat and ensuring that the detector maintains stable performance during long-term operation.

[0121] In one possible implementation, the detector further includes a detachable magnetic attachment, which is connected to the back of the housing via magnetic force, and is used to flexibly adjust the fixing method of the detector in different test scenarios.

[0122] In a specific example, the magnetic attachment of the detector features a detachable magnetic attachment that connects to the back of the housing via magnetic force. This allows for flexible adjustment of the detector's mounting method in different testing scenarios, facilitating testing operations in various complex environments.

[0123] Through the above specific implementation, this handheld rapid vehicle radar tester can achieve efficient, accurate, and convenient vehicle radar testing, providing strong protection for vehicle safety performance. At the same time, its handheld design and rich functional features enable users to easily operate it in various field environments, meeting the testing needs of different users.

[0124] Another embodiment of the present invention provides a radar detection method using the handheld detector provided by one embodiment of the present invention, the method comprising: using a detector integrated module to measure a distance signal between the radar under test and the handheld detector and assisting in aligning the radar under test and the handheld detector; using a microstrip array antenna module to receive multiple detection signals emitted by the radar under test and convert the multiple detection signals into multiple conducted signals; using a radio frequency envelope detection module to receive the multiple conducted signals and process them to obtain multiple detection voltage signals; using a signal processing module to receive the detection voltage signals and perform analog-to-digital conversion to obtain digital signals, and processing the digital signals to obtain a transmission power signal of the radar under test; using a display control module to receive the transmission power signal of the radar under test and the distance signal between the radar under test and the handheld detector and process them to obtain a detection result, and displaying the detection result in response to a user's operation.

[0125] In one specific example, the method includes:

[0126] Step 1: Preparation. Ensure the detector is fully charged or connect it to an external power source for charging. Check that the waterproof rubber cap is securely in place and that the connectors are undamaged. Confirm that the measurement environment meets the requirements and avoid strong electromagnetic interference or other factors that could affect the measurement results. Mount the detector on a stable tripod, with the back panel parallel to the vehicle-mounted radar, preferably at a distance of 0.5 to 3 meters.

[0127] Step 2: Power on and calibrate. Press the power switch to start the detector. Determine whether calibration is necessary based on the operating conditions and measurement accuracy requirements. If calibration is required, select the calibration mode and follow the prompts to ensure the detector's power measurement accuracy.

[0128] Step 3: Measurement. Aim the tester at the on-board radar under test, ensuring that the laser spot falls within the positioning circle on the tester's plane image to align the tester and the radar under test. Select the measurement mode and begin the measurement. View information such as the spatial relationship between the tester and the radar under test, received signal strength, and received signal envelope on the touch screen. Display the measurement results in the form of images, tables, or curves as needed.

[0129] Step 4: Data recording and storage. During the measurement process, the measurement data will be automatically recorded in a file named by the user; the measurement data can be exported to external devices through external interfaces such as SD card and USB for further data analysis and processing.

[0130] Step 5: Remote control and data upload. If remote control and data upload are required, ensure that the detector is connected to the remote server or mobile device. On the remote end, you can view the test data and device status in real time, perform remote monitoring, and diagnose the device status.

[0131] Step 6: End the operation. After the measurement is completed, turn off the detector. Arrange the equipment and store it properly.

[0132] In a specific example, Figure 7 As shown, the method includes:

[0133] Step 10: Turn on the detector; Step 20: Control software self-start and detector self-test; Step 30: Internal power calibration of the device, step 30 can be omitted; Step 40: Select the operating frequency band; Step 50: Set the range; Step 60: Align the detector with the radar under test; Step 70: Obtain test data, images and curves; Step 80: End of test.

[0134] The detector of this embodiment adopts a handheld design with a compact size and light weight, and is easy to carry to any site where testing is required, which greatly improves the flexibility and response speed of the test. It does not rely on large fixed equipment, and can achieve efficient testing of vehicle-mounted radar, for example.

[0135] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0136] It should also be noted that, in the description of the present invention, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0137] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in this field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A handheld radar detector, characterized in that: include: A detector integrated module, used to measure the distance signal between the radar under test and the handheld detector and to assist in aligning the radar under test and the handheld detector; a microstrip array antenna module, configured to receive a plurality of detection signals transmitted by the radar under test and convert the plurality of detection signals into a plurality of conducted signals; a radio frequency envelope detection module, configured to receive the plurality of conducted signals and process them to obtain a plurality of detection voltage signals; a signal processing module, configured to receive the detection voltage signal and perform analog-to-digital conversion to obtain a digital signal, and process the digital signal to obtain a transmission power signal of the radar under test; The display control module is used to receive the transmission power signal of the measured radar and the distance signal between the measured radar and the handheld detector, process them to obtain a detection result, and display the detection result in response to the user's operation.

2. The handheld radar detector according to claim 1, characterized in that: The microstrip array antenna module includes a plurality of microstrip antennas with different operating frequency ranges, and the plurality of microstrip antennas with different operating frequency ranges are used to receive a corresponding plurality of detection signals and convert the plurality of detection signals into a plurality of conduction signals.

3. The handheld radar detector according to claim 2, characterized in that: The RF envelope detection module includes a channel selection unit and a plurality of RF envelope detection units corresponding one-to-one to the plurality of microstrip antennas of different operating frequencies, each of the RF detection units includes a filter, a limiter and a detector; in The filter is used to receive the conducted signal and process it to obtain a filtered signal; The limiter is used to receive the filtered signal and process it to obtain a limited signal; The detector is used to receive the amplitude limiting signal and process it to obtain the detection voltage signal; The channel selection unit is configured to receive the plurality of detection voltage signals output by the plurality of RF envelope detection units, and select and output one of the plurality of detection voltage signals according to a first control signal sent by the display control module.

4. The handheld radar detector according to claim 3, characterized in that: The signal processing module includes an analog-to-digital conversion unit, a denoising unit, an average calculation unit and a conversion unit; in The analog-to-digital conversion unit is used to receive the detection voltage signal output by the channel selection unit and perform analog-to-digital conversion to obtain a digital signal; The denoising unit is configured to receive the digital signal and process it to obtain a digital envelope signal; The average calculation unit is used to receive the digital envelope signal and process it to obtain a digital detection voltage signal; The conversion unit is used to receive the digital detection voltage signal and process it to obtain the transmission power signal of the radar under test.

5. The handheld radar detector according to claim 4, characterized in that: Also includes: A standard power source is used to transmit a standard power signal to the RF envelope detection module to obtain a standard detection voltage signal, so that the signal processing module obtains a standard detection result corresponding to the standard power signal based on the standard detection voltage signal, and the handheld detector is calibrated according to the standard detection result.

6. The handheld radar detector according to claim 5, characterized in that: The detector integrated module includes a camera, a laser ranging probe and multiple laser emission probes; The camera is used to collect image signals of the radar under test and the surrounding environment of the radar under test; The laser ranging probe is used to measure the distance signal between the radar under test and the handheld detector; The multiple laser emitting probes are used to emit multiple laser beams to the surface of the radar under test according to the second control signal sent by the display control module.

7. The handheld radar detector according to claim 6, characterized in that: The display control module includes a processor and a touch screen; wherein The processor is configured to receive the image signal, the distance signal, and the transmission power signal of the radar under test, and process the distance signal and the transmission power signal of the radar under test to obtain a detection result; and is further configured to output a first control signal and a second control signal according to a user operation; The touch screen is used to receive and display the detection result and receive the user's operation.

8. The handheld radar detector according to claim 7, characterized in that: The display control module includes a multi-channel DC voltage conversion unit, a battery and a charging management unit; wherein The charging management unit is used to monitor and control the charging of the battery and automatically switch to the external power supply mode when the external power supply is valid; The battery is used to provide a DC voltage to the multi-channel DC voltage conversion unit; The multi-channel DC voltage conversion unit is used to convert the DC voltage into the power supply voltage required by each module.

9. The handheld radar detector according to claim 1, characterized in that: Also includes: A data transmission and storage module, configured to store or export the detection results in response to user operations; A power management module is used to supply power to the detector integration module, the microstrip array antenna module, the radio frequency envelope detection module, the signal processing module, the display control module and the data transmission and storage module.

10. A radar detection method using the handheld detector according to any one of claims 1 to 9, characterized in that: The method includes: Using the detector integrated module to measure the distance signal between the radar under test and the handheld detector and assist in aligning the radar under test and the handheld detector; Using a microstrip array antenna module to receive a plurality of detection signals transmitted by the radar under test and converting the plurality of detection signals into a plurality of conducted signals; Using a radio frequency envelope detection module to receive the multiple conducted signals and process them to obtain multiple detection voltage signals; Using a signal processing module to receive the detection voltage signal and perform analog-to-digital conversion to obtain a digital signal, and processing the digital signal to obtain a transmission power signal of the radar under test; The display control module receives and processes the transmission power signal of the radar under test and the distance signal between the radar under test and the handheld detector to obtain a detection result, and displays the detection result in response to the user's operation.

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