Efficient hard disk health state test equipment
By combining the main control module, multi-channel signal acquisition module, and vibration monitoring module, the electrical and mechanical vibration parameters of the hard drive are collected simultaneously, solving the problems of long testing time and dependence in the existing technology, and realizing efficient and accurate hard drive health status detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG XINXIN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-05-19
AI Technical Summary
Existing hard drive health testing equipment has long testing time, limited testing parameters, and incomplete and inaccurate results. Furthermore, it relies on the hard drive's built-in monitoring system, which is prone to failure.
It employs a main control module, a multi-channel signal acquisition module, and a vibration monitoring module. By synchronously acquiring the electrical and mechanical vibration parameters of the hard drive, it performs data analysis using a laser displacement sensor and a high-precision ADC chip, independent of the hard drive's built-in monitoring system.
It achieves efficient and sensitive fault detection, can identify early hidden faults, has a detection accuracy of micrometer level, covers the frequency range of mechanical fault characteristics, and does not rely on the hard drive's own monitoring system.
Smart Images
Figure CN224263812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of computer hardware testing technology, and in particular to a high-efficiency hard disk health status testing device. Background Technology
[0002] With the rapid growth in data storage demand, hard drives are widely used as the main storage medium in various computing devices. The health status of hard drives is directly related to data security, so it is of great significance to conduct regular health checks on hard drives.
[0003] To address this, patent CN117743057A discloses a hard drive working status monitoring system. This device indirectly assesses the health status by running a standardized read / write test program and measuring the hard drive's throughput, latency, and other performance indicators. However, it suffers from problems such as long test time and limited test parameters, resulting in incomplete and inaccurate results.
[0004] In addition, most existing hard drive health detection methods rely on reading the hard drive's built-in SMART parameters to assess its health status. This method is entirely dependent on the hard drive's built-in monitoring system, and monitoring will fail when the main controller chip malfunctions.
[0005] Therefore, it is necessary to further improve the hard drive health testing equipment. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-efficiency hard drive health status testing device with high testing efficiency, sensitive fault detection, and no reliance on the hard drive's own monitoring system, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency hard disk health status testing device, including a main control module, a vibration monitoring module, and a multi-channel signal acquisition module;
[0008] The main control module is electrically connected to the multi-channel signal acquisition module and the vibration monitoring module, respectively, and is used to control the hard disk testing process and perform data analysis.
[0009] The multi-channel signal acquisition module is used to acquire the electrical parameters of the hard drive under test when it is working.
[0010] The vibration monitoring module integrates a laser displacement sensor to collect mechanical vibration parameters of the hard drive under test during operation.
[0011] Preferably, the multi-channel signal acquisition module includes an ADC chip for real-time monitoring of the hard drive's operating current and voltage fluctuations.
[0012] Preferably, the vibration monitoring module includes an LDO regulator to provide a low-noise linear power supply for the laser sensor, avoiding interference from switching power supply ripple.
[0013] Preferably, the multi-channel signal acquisition module is connected to the hard drive under test via a SATA interface and a power interface.
[0014] Preferably, it also includes a status indicator module electrically connected to the main control module; the status indicator module includes LED indicator lights and an LCD display screen for intuitively displaying test results.
[0015] Preferably, it also includes a power supply module for providing a stable power supply to the main control module, the multi-channel signal acquisition module, the vibration monitoring module, and the hard drive under test.
[0016] The working principle and usage principle of this utility model are as follows: the main control module sends a standardized test command sequence (such as full disk sequential read / write, random addressing, and motor start / stop test modes) to the hard drive under test through the SATA interface; these commands simulate the typical load conditions of the hard drive in actual operation, ensuring that the test conditions cover various usage scenarios; during the test, the main control module synchronously coordinates the sampling timing of the multi-channel signal acquisition module and the vibration monitoring module.
[0017] The data acquisition stage adopts a dual-channel parallel mechanism. In the multi-channel signal acquisition module, the current and voltage parameters of the hard disk power path are synchronously sampled by an ADC chip (such as TI ADS1258, 8 channels, 24-bit resolution). Current monitoring is achieved by using a high-precision current sensing resistor in conjunction with a differential amplifier, while voltage fluctuation monitoring is completed by using a precision voltage divider resistor network in conjunction with a voltage follower (such as OPA2188).
[0018] Non-contact laser displacement sensors (such as the LK-G500 series) are used in the vibration monitoring module to achieve nanometer-level displacement resolution detection. The output signal is differentially amplified by a differential amplifier (such as INA826) and then sent to the ADC chip. An LDO regulator (such as TPS7A33) provides low-noise power to the sensor, effectively suppressing the interference of switching power supply ripple on weak vibration signals.
[0019] The main control module performs pattern matching between real-time collected electrical parameters (operating current ripple, voltage drop) and vibration parameters (time-domain amplitude, frequency-domain characteristic spectrum) and a pre-set health hard drive feature database. Typical fault judgment logic includes: when the harmonic distortion rate of the spindle motor current exceeds the threshold and is accompanied by vibration at a characteristic frequency below 1kHz, it is judged as bearing wear; when the transient response of the current is abnormal and accompanied by high-frequency vibration during the seek operation, it indicates a potential fault in the read / write head mechanism.
[0020] The results are output through a multi-level status indicator module. LED indicators provide quick identification using red, yellow, and green colors, while the LCD screen displays detailed parameter curves and spectral characteristic diagrams.
[0021] The power module converts external AC power into multiple stable DC power sources, such as providing +3.3V or +5V to the main control module, and providing standard +5V and +12V power to the hard drive under test.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] By simultaneously acquiring electrical parameters (current / voltage) and mechanical vibration parameters, early latent faults that cannot be detected by a single detection method (such as periodic current fluctuations caused by slight imbalance of the spindle motor) can be efficiently identified.
[0024] Using a laser displacement sensor to replace contact measurement eliminates the influence of the sensor's added mass on the hard drive's resonant frequency, ensuring the authenticity of mechanical vibration parameters (such as bearing wear and platter eccentricity). The detection accuracy reaches the micrometer level, covering the characteristic frequency range of mechanical faults, and does not rely on the hard drive's own monitoring system. Attached Figure Description
[0025] Figure 1 This is a block diagram of the overall architecture of this utility model;
[0026] Figure 2 This is a circuit schematic diagram of the multi-channel signal acquisition module of this utility model;
[0027] Figure 3 This is an example diagram of the ADC chip for the multi-channel signal acquisition module of this utility model;
[0028] Figure 4 This is a schematic diagram of the vibration monitoring module of this utility model. Detailed Implementation
[0029] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.
[0030] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or sets.
[0031] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0032] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0035] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency hard drive health status testing device, including a main control module, a vibration monitoring module, and a multi-channel signal acquisition module;
[0036] The main control module is electrically connected to the multi-channel signal acquisition module and the vibration monitoring module, respectively, and is used to control the hard disk testing process and perform data analysis.
[0037] The multi-channel signal acquisition module is used to acquire the electrical parameters of the hard drive under test when it is working.
[0038] The vibration monitoring module integrates a laser displacement sensor to collect mechanical vibration parameters of the hard drive under test during operation.
[0039] Specifically, the main control module of this hard disk health testing device is electrically connected to the multi-channel signal acquisition module, vibration monitoring module, and status indication module. In this embodiment, the main control module can use a high-performance microcontroller (such as the STM32 series) or an embedded system core board (such as an ARM-based processor); its main functions are twofold:
[0040] Test process control: The main control module sends standard SATA commands to the hard drive under test through the SATA interface of the multi-channel signal acquisition module, such as full disk sequential, random read / write, fast head seek, start / stop test, etc., to simulate the working state of the hard drive under various loads.
[0041] Data acquisition and comparison: The main control module receives electrical parameters (such as operating current and voltage fluctuations) from the multi-channel signal acquisition module and mechanical vibration parameters from the vibration monitoring module. It performs correlation analysis on the electrical parameters and mechanical vibration parameters, or directly compares them with the health hard drive feature database preset in the main control module to identify anomalies and determine the health status of the hard drive under test (e.g., good, warning, fault).
[0042] Common abnormal situations include:
[0043] Electrically, bearing wear manifests as an increase in starting current; mechanically, it manifests as an increase in axial vibration (enhanced fundamental harmonics).
[0044] Electrically, head collisions manifest as a sharp increase in read / write error rates; mechanically, they manifest as high-frequency transient vibrations (>5kHz).
[0045] The eccentricity of the disk manifests electrically as fluctuations in rotational speed (periodic changes in current), and mechanically as vibrations at a rotational frequency (e.g., 7200 RPM = 120 Hz).
[0046] Hard disk vibration amplitudes are typically minute (micrometer level). The probes or clamps of contact sensors may alter their inherent resonant frequency or damping characteristics, leading to distorted test data. The vibration monitoring module of this hard disk health testing equipment uses a non-contact laser displacement sensor, eliminating the need for physical contact with the hard disk and avoiding the influence of the added mass of contact sensors on the hard disk vibration characteristics. Furthermore, typical failure modes of mechanical hard disks (such as spindle imbalance, bearing wear, and platter eccentricity) mainly induce low-frequency vibration signals below 1kHz. Existing laser displacement sensor technical specifications meet the detection requirements of this frequency band, with typical bandwidths reaching tens of kHz (such as Polytec NLV-2500 and Keyence LK-G500 series), and displacement resolution reaching the nanometer level, which can cover the characteristic frequency range of mechanical failures.
[0047] In this embodiment, the analog signal output from the laser displacement sensor signal output terminal is coupled to the single-ended input terminal of the ADC chip through a differential amplifier circuit (such as INA826), which can effectively suppress common-mode interference and assess the health status of its mechanical structure.
[0048] During operation, align the laser displacement sensor of the testing equipment with the edge of the hard disk platter, the read / write head arm, or the key part of the hard disk casing to be tested, ensuring that the laser beam is perpendicular to the measurement surface to avoid reflection interference.
[0049] Furthermore, the multi-channel signal acquisition module includes an ADC chip for real-time monitoring of the hard drive's operating current and voltage fluctuations.
[0050] The multi-channel signal acquisition module is connected to the hard drive under test via a SATA interface and a power interface.
[0051] Specifically, the ADC chip uses a multi-channel synchronous sampling ADC chip (such as TI ADS1258, 8 channels, 24-bit resolution) to ensure high-precision acquisition. Taking this embodiment as an example, the single-ended input terminal of the ADC chip is the AIN pin.
[0052] The multi-channel signal acquisition module is connected to the hard drive under test via a power interface;
[0053] Monitoring operating current: A high-precision current sensing resistor R1 (such as a 50mΩ 1% alloy resistor) is connected in series in the power path. The two ends of the high-precision current sensing resistor R1 are connected to the input of a differential amplifier (such as INA240). The differential amplifier obtains the voltage difference across the resistor, and its output is connected to the single-ended input of the ADC chip.
[0054] Monitoring voltage fluctuations: A voltage divider resistor network (such as a 1% precision resistor) is connected to the power path. The voltage divider resistor network includes R2 and R3 connected in series, with its output located between R2 and R3. The output of the voltage divider resistor network is connected to the input of a voltage follower (such as OPA2188). The output of the voltage follower is connected to the second single-ended input of the ADC chip. A small resistor R2 (such as 100Ω) is connected in series between the output of the voltage follower and the second single-ended input of the ADC chip to prevent oscillation interference. The voltage divider resistor network is set according to the different power paths of 12V and 5V. For example, when the voltage is 12V, R2 / (R2+R3) = 1 / 6; when the voltage is 5V, R2 / (R2+R3) = 1 / 2. Ensure that the voltage value after voltage division meets the range of the ADC chip.
[0055] The multi-channel signal acquisition module is connected to the hard drive under test via a SATA interface;
[0056] Differential pair signals are used to transmit SATA commands; the SATA interface of the multi-channel signal acquisition module is connected to the input of the main control module. The main control module generates a sequence of control commands by parsing the standard SATA protocol, including test modes such as full disk sequential read / write, random addressing, and motor start / stop, to drive the hard drive to perform operations with different load characteristics.
[0057] Although this embodiment mainly analyzes current and voltage, in more advanced implementations, this module can also integrate high-speed signal processing circuitry to monitor key parameters such as signal eye diagram and jitter on the SATA data transmission line in order to evaluate its communication quality.
[0058] Furthermore, the vibration monitoring module includes an LDO regulator to provide a low-noise linear power supply for the laser sensor, avoiding interference from switching power supply ripple.
[0059] Specifically, a 3.3V LDO regulator (such as TPS7A33) is used to power the laser sensor. The input power is filtered by a ceramic capacitor and then connected to the LDO regulator to suppress high and low frequency noise. The output of the LDO regulator is connected to the power input of the laser sensor.
[0060] Furthermore, it also includes a status indication module electrically connected to the main control module; the status indication module includes LED indicators and an LCD display screen for intuitively displaying test results.
[0061] Specifically, LED indicator lights: different colored LEDs can be used, for example, green represents "test passed and healthy", yellow represents "warning and potential risk", and red represents "test failed and malfunction".
[0062] After the test is completed, the main control module will light up the corresponding LEDs based on the comparison results with the health hard drive feature database stored in the memory, so as to achieve rapid status judgment.
[0063] LCD display: can provide richer information, such as displaying the current and voltage values of the hard drive under test, and a simplified diagram of the mechanical vibration spectrum.
[0064] Furthermore, it also includes a power supply module for providing stable power to the main control module, the multi-channel signal acquisition module, the vibration monitoring module, and the hard drive under test.
[0065] Specifically, the power module converts external AC power into multiple stable DC power sources, such as providing +3.3V or +5V to the main control module, and providing standard +5V and +12V power to the hard drive under test.
[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A high-efficiency hard drive health status testing device, comprising a main control module, a vibration monitoring module, and a multi-channel signal acquisition module, characterized in that: The main control module is electrically connected to the multi-channel signal acquisition module and the vibration monitoring module, respectively, and is used to control the hard disk testing process and perform data analysis. The multi-channel signal acquisition module is used to acquire the electrical parameters of the hard drive under test when it is working. The vibration monitoring module integrates a laser displacement sensor to collect mechanical vibration parameters of the hard drive under test during operation.
2. The efficient hard disk health status testing device according to claim 1, characterized in that: The multi-channel signal acquisition module includes an ADC chip, which is used to monitor the operating current and voltage fluctuations of the hard drive in real time.
3. The efficient hard disk health status testing device according to claim 1, characterized in that: The vibration monitoring module includes an LDO regulator to provide a low-noise linear power supply for the laser sensor, avoiding interference from switching power supply ripple.
4. The efficient hard disk health status testing device according to claim 1, characterized in that: The multi-channel signal acquisition module is connected to the hard drive under test via a SATA interface and a power interface.
5. The efficient hard disk health status testing device according to claim 1, characterized in that: It also includes a status indicator module electrically connected to the main control module; the status indicator module includes LED indicators and an LCD display screen for intuitively displaying test results.
6. The efficient hard disk health status testing device according to claim 1, characterized in that: It also includes a power supply module, which provides a stable power supply to the main control module, the multi-channel signal acquisition module, the vibration monitoring module, and the hard drive under test.