A centralized monitoring system for radar function test and a monitoring method thereof

Abstract

This invention relates to the field of radar testing technology, specifically a centralized monitoring system and method for radar functional testing. The system includes a functional test box with a main control unit inside, and also includes multiple CAN bus communication interfaces, a status indication module, and a data storage module. The specific steps of the monitoring method are as follows: S1: Connect multiple groups of radar devices; S2: The main control unit of the functional test box continuously monitors each CAN channel; S3: The main control unit parses the received messages, extracting message identifiers and data fields; S4: Match the extracted message identifiers with pre-stored status identifiers; S5: If the match is successful, parse the data field according to predefined rules to determine the status type to be indicated and the corresponding radar device; S6: Based on the parsing result, drive the corresponding status indicator on the functional test box panel to complete the status visualization display; The main control unit of the test box can realize parallel monitoring of the status of multiple groups of radars.

Description

Technical Field

[0001] This invention relates to the field of radar testing technology, specifically a centralized monitoring system and monitoring method for radar functional testing. Background Technology

[0002] During radar equipment DV testing, rigorous testing of various radar functions, such as CAN communication, target detection, phase-locked loop stability, and operating temperature adaptability, is required. Traditional testing methods typically involve one test bench per radar, requiring testers to observe the log output of each radar individually or use separate measuring instruments to interpret its status, resulting in low efficiency. When multiple radars need to be tested in parallel, the testing environment becomes complex, with numerous cables, making it difficult for testers to quickly and intuitively grasp the real-time status of all radars. Especially when faults occur, locating the problematic radar and the cause of the fault is extremely time-consuming. Therefore, there is an urgent need in this field for a testing solution that can centrally and concurrently monitor multiple radars to simplify the testing process and improve testing efficiency. Summary of the Invention

[0003] To provide a compact and easy-to-operate monitoring system and method for radar function testing, this invention proposes a centralized monitoring system and method for radar function testing.

[0004] A centralized monitoring system for radar functional testing includes: The functional test box contains a main control unit and also includes: Multiple CAN bus communication interfaces are integrated on the panel of the functional test box for connecting at least one group of radar devices under test, each group of radar devices under test including one main radar and one auxiliary radar. The status indicator module is integrated on the panel of the functional test box, including at least one set of status indicator lights corresponding to each group of radar devices under test; The data storage module is used to record the received radar status messages and the corresponding parsing results into the storage device; The main control unit receives and parses messages from each CAN bus channel using predefined parsing rules.

[0005] The status indicator lights include those for indicating radar CAN communication status, target detection status, operating temperature status, phase-locked loop status, and power supply voltage status.

[0006] The predefined parsing rules include: the status identifier is 0x377 or 0x378; the main control unit distinguishes whether the message comes from the main radar or the auxiliary radar by judging whether the value of the 7th byte of the message data field is 0x00.

[0007] The main control unit is further configured as follows: When the value of the 7th byte is 0x00, the status indicator light group corresponding to the main radar is controlled. When the value of the 7th byte is not 0x00, the status indicator light group corresponding to the auxiliary radar is controlled.

[0008] The specific rules of the status indication module are as follows: When bit[0] of the 0th byte in the message data field is 1, the corresponding CAN1 communication normal indicator light is lit. When bit[0] of the first byte is 1, the corresponding CAN0 communication normal indicator light is lit. When bit[0] of the second byte is 1, the target status normal indicator light is turned on; When bit[0] of the 3rd byte is 1, the normal operating temperature indicator light is turned on; When bit[0] of the 4th byte is 1, the normal power supply voltage indicator light is turned on; When bit[0] of the 5th byte is 1, the normal indicator light of the phase-locked loop is lit.

[0009] The functional test box also has a physical switch on its panel corresponding to the CAN bus channel, which is used to manually select to connect the CAN interface of the main control unit to a designated radar device for communication.

[0010] A monitoring method for a centralized monitoring system used for radar functional testing, comprising the following specific steps: S1: Connect multiple radar devices through multiple CAN channels of the functional test box; S2: The main control unit of the functional test box continuously monitors each CAN channel and receives status messages sent by the radar. S3: The main control unit parses the received message and extracts the message identifier and data field; S4: Match the extracted message identifier with the pre-stored status identifier; S5: If a match is successful, the data field is parsed according to predefined rules to determine the state type to be indicated and the corresponding radar device; S6: Based on the analysis results, the corresponding status indicator lights on the driver function test box panel will complete the status visualization display.

[0011] The beneficial effects of this invention are: the main control unit of the test box can process messages from multiple CAN channels simultaneously, realize parallel monitoring of multiple radar states, and display all information on a single panel, providing an unprecedented global perspective; the originally scattered multiple status monitoring points for a single radar, such as CAN communication, temperature, and voltage, are mapped onto a unified, grouped indicator light group on the test box panel through hardware circuitry and software parsing. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of the functional test box of the present invention; Figure 2 This is a panel layout diagram of the functional test box of the present invention; Figure 3 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0015] like Figures 1 to 3 As shown, a centralized monitoring system for radar functional testing includes: The functional test box maps previously scattered, individual radar status monitoring points, such as CAN communication, temperature, and voltage, onto a unified, grouped indicator light array on the test box panel through hardware circuitry and software analysis. This achieves hardware integration and status mapping. Internally, it includes a main control unit and also comprises: Multiple CAN bus communication interfaces are integrated on the panel of the functional test box to connect at least one group of radar devices under test. Each group of radar devices under test includes one main radar and one auxiliary radar. Testers do not need to switch between multiple test terminals or devices. They can grasp the status of all radar devices under test by observing the panel of one test box, which greatly improves the efficiency of parallel testing. The status indicator module is integrated on the panel of the functional test box. It includes at least one set of status indicator lights corresponding to each group of radar devices under test. Once a radar fails, its corresponding status indicator light will immediately show an abnormality, such as going out or turning red. Testers can locate the faulty device and the type of fault in seconds, such as power problems, communication interruptions, etc. The data storage module is used to record the received radar status messages and corresponding parsing results to the storage device. The optional SD card data recording function provides data support for subsequent problem analysis and test process traceability. The main control unit is configured to receive and parse messages from each CAN bus channel using predefined parsing rules. When the identifier of the message matches the pre-stored status identifier, the status indicator corresponding to the radar that sent the message is controlled to turn on or off or change color according to the value of a specific bit in a specific byte in the message data field, so as to intuitively display the real-time working status of the radar.

[0016] The status indicator lights include those for indicating radar CAN communication status, target detection status, operating temperature status, phase-locked loop status, and power supply voltage status.

[0017] The predefined parsing rules include: the status identifier is 0x377 or 0x378; the main control unit distinguishes whether the message comes from the main radar or the auxiliary radar by judging whether the value of the 7th byte of the message data field is 0x00.

[0018] The main control unit is further configured as follows: When the value of the 7th byte is 0x00, the status indicator light group corresponding to the main radar is controlled. When the value of the 7th byte is not 0x00, the status indicator light group corresponding to the auxiliary radar is controlled.

[0019] The specific rules of the status indication module are as follows: When bit[0] of the 0th byte in the message data field is 1, the corresponding CAN1 communication normal indicator light is lit. When bit[0] of the first byte is 1, the corresponding CAN0 communication normal indicator light is lit. When bit[0] of the second byte is 1, the target status normal indicator light is turned on; When bit[0] of the 3rd byte is 1, the normal operating temperature indicator light is turned on; When bit[0] of the 4th byte is 1, the normal power supply voltage indicator light is turned on; When bit[0] of the 5th byte is 1, the normal indicator light of the phase-locked loop is lit. The above design is a set of efficient CAN message parsing rules, which can not only extract status information from the message, but also automatically distinguish whether the message comes from the main radar or the auxiliary radar through a specific data field in the message, such as B[7], thereby automatically driving the corresponding set of indicator lights, realizing the automatic identification and indication of radar identity, forming intelligent message parsing and radar identification.

[0020] The functional test box also has a physical switch on its panel corresponding to the CAN bus channel, which is used to manually select the CAN interface of the main control unit to connect to the specified radar device for communication. The main control unit of the test box can process messages from multiple CAN channels at the same time, realize parallel monitoring of multiple radar statuses, and display all information on one panel, providing an unprecedented global perspective.

[0021] A monitoring method for a centralized monitoring system used for radar functional testing, comprising the following specific steps: S1: Connecting multiple radar devices via multiple CAN channels of the functional test box: The functional test box has multiple built-in CAN bus communication interfaces, each of which can connect to a group of radar devices under test. Each group includes one main radar and one auxiliary radar. A physical switch on the test box panel allows manual selection of the CAN channel, ensuring flexible connection. During connection, the tester must ensure the CAN bus line is stable to avoid communication interruptions. This step is the hardware foundation, providing physical support for parallel testing. S2: The main control unit of the functional test box continuously monitors each CAN channel and receives status messages sent by the radar. As the core processor, the main control unit monitors all CAN channels simultaneously in a multi-threaded manner. The radar device will periodically send status messages through the CAN bus. The messages contain identifiers, such as the data field of the CAN ID. The main control unit adopts a non-blocking monitoring strategy to ensure real-time performance and avoid data loss. This step reflects the system's innovative "parallel processing" feature, which can process multiple data streams simultaneously. S3: The main control unit parses the received message and extracts the message identifier and data field: Identifier, i.e. CAN ID: used to identify the message type. The status identifier is predefined as 0x377 or 0x378. Data field: contains 8 bytes of data. Specific bits of each byte correspond to different states. During parsing, the main control unit will verify the message format and filter invalid data to ensure reliability. S4: Match the extracted message identifier with the pre-stored status identifier: The main control unit stores a set of predefined status identifiers, such as 0x377 and 0x378. The matching logic is as follows: compare the extracted CAN ID with the pre-stored identifier. If they match, proceed to the next step; otherwise, discard the message to avoid misoperation. This step is the key to "intelligent message parsing". It improves efficiency and reduces software overhead through hardware filtering. S5: If a match is successful, the data field is parsed according to predefined rules to determine the state type to be indicated and the corresponding radar device: Radar identification: The primary and secondary radars are distinguished by the value of the 7th byte of the data field—if it is 0x00, the message comes from the primary radar; otherwise, it comes from the secondary radar. This achieves "automatic radar identification". Status type determination: Parsing the bits of a specific byte, for example: Byte 0 bit[0] = 1: indicates that CAN1 communication is normal; The first byte, bit[0] = 1: indicates that CANO communication is normal; Similar rules apply to target status, temperature, and voltage categories; after parsing, the system determines the status to be indicated, such as "normal power supply voltage" and its associated radar group. S6: Based on the analysis results, the corresponding status indicator lights on the drive function test box panel complete the status visualization display: The main control unit, based on the analysis results, uses GPIO or the status indicator light group on the drive circuit control panel. Each group of indicator lights corresponds to one radar and includes sub-items such as CAN communication, target status, temperature, and voltage. The indicator lights display the status intuitively by turning on or off or changing colors, such as green for normal and red for fault. For example, if the analysis shows that the power supply voltage of the main radar is abnormal, its corresponding indicator light will turn red, and the tester can locate the fault in seconds. At the same time, the system can be equipped with a data storage module to record the messages and analysis results to an SD card for subsequent analysis.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A centralized monitoring system for radar functional testing, characterized by: include: The functional test box contains a main control unit and also includes: Multiple CAN bus communication interfaces are integrated on the panel of the functional test box for connecting at least one group of radar devices under test, each group of radar devices under test including one main radar and one auxiliary radar. The status indicator module is integrated on the panel of the functional test box, including at least one set of status indicator lights corresponding to each group of radar devices under test; The data storage module is used to record the received radar status messages and the corresponding parsing results into the storage device; The main control unit receives and parses messages from each CAN bus channel using predefined parsing rules.

2. The centralized monitoring system for radar functional testing of claim 1, wherein: The status indicator lights include those for indicating radar CAN communication status, target detection status, operating temperature status, phase-locked loop status, and power supply voltage status.

3. The centralized monitoring system for radar functional testing of claim 1, wherein: The predefined parsing rules include: the status identifier is 0x377 or 0x378; the main control unit distinguishes whether the message comes from the main radar or the auxiliary radar by judging whether the value of the 7th byte of the message data field is 0x00.

4. The centralized monitoring system for radar functional testing of claim 1, wherein: The main control unit is further configured as follows: When the value of the 7th byte is 0x00, the status indicator light group corresponding to the main radar is controlled. When the value of the 7th byte is not 0x00, the status indicator light group corresponding to the auxiliary radar is controlled.

5. The centralized monitoring system for radar functional testing of claim 1, wherein: The specific rules of the status indication module are as follows: When bit[0] of the 0th byte in the message data field is 1, the corresponding CAN1 communication normal indicator light is lit. When bit[0] of the first byte is 1, the corresponding CAN0 communication normal indicator light is lit. When bit[0] of the second byte is 1, the target status normal indicator light is turned on; When bit[0] of the 3rd byte is 1, the normal operating temperature indicator light is turned on; When bit[0] of the 4th byte is 1, the normal power supply voltage indicator light is turned on; When bit[0] of the 5th byte is 1, the normal indicator light of the phase-locked loop is lit.

6. The centralized monitoring system for radar functional testing of claim 1, wherein: The functional test box also has a physical switch on its panel corresponding to the CAN bus channel, which is used to manually select to connect the CAN interface of the main control unit to a designated radar device for communication.

7. A monitoring method using the centralized monitoring system for radar function test according to any one of claims 1 to 6, characterized in that: The specific steps are as follows: S1: Connect multiple radar devices through multiple CAN channels of the functional test box; S2: The main control unit of the functional test box continuously monitors each CAN channel and receives status messages sent by the radar. S3: The main control unit parses the received message and extracts the message identifier and data field; S4: Match the extracted message identifier with the pre-stored status identifier; S5: If a match is successful, the data field is parsed according to predefined rules to determine the state type to be indicated and the corresponding radar device; S6: Based on the analysis results, the corresponding status indicator lights on the driver function test box panel will complete the status visualization display.

8. The monitoring method of a centralized monitoring system for radar function testing according to claim 7, characterized in that: The identification of the radar device in step S6 is as follows: The primary and secondary radars are distinguished by the value of the 7th byte of the data field—if it is 0x00, the message comes from the primary radar; otherwise, it comes from the secondary radar. This achieves "automatic radar identification". Status type determination: Parsing the bits of a specific byte, for example: Byte 0 bit[0] = 1: indicates that CAN1 communication is normal; The first byte, bit[0] = 1: indicates that CANO communication is normal; Similar rules apply to target status, temperature, and voltage categories. After parsing, the system determines the status to be indicated and its corresponding radar group.

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