Circuit board health state monitoring system

Abstract

The invention relates to the technical field of integrated circuits, in particular to a circuit board health state monitoring system, which comprises a circuit board data acquisition module used for acquiring circuit board data; the operation monitoring module is used for analyzing the operation state of the circuit board; the power monitoring module is used for analyzing the power state of the circuit board; the alarm module is used for giving a circuit board state abnormity alarm to a user according to the analysis result of the operation state of the circuit board and the analysis result of the power state of the circuit board in the monitoring period; the clock signal analysis module is used for analyzing the jitter abnormity of the clock signal of the circuit board; the impedance analysis module is used for analyzing the impedance state of the circuit board and processing the analysis process of the impedance state of the circuit board according to the circuit board noise collected in the management period; and the management module is used for monitoring the health state of the circuit board. According to the invention, the health state monitoring efficiency of the circuit board is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuits, and in particular to a circuit board health status monitoring system. Background Art

[0002] As electronic devices become more and more popular, their quality and stability requirements are also getting higher and higher. In complex circuit boards, due to factors such as long-term operation, environmental changes, and material aging, various abnormalities may occur in the circuit board, such as excessive temperature, voltage fluctuations, power loss, increased noise, and clock signal jitter. These abnormalities not only affect the performance of the equipment, but may also cause equipment failure, data loss, and even pose a safety hazard. Therefore, establishing an efficient and real-time circuit board health status monitoring system that can detect abnormal conditions in advance and issue alarms in time is crucial to maintaining and managing the normal operation of electronic equipment.

[0003] Chinese patent publication number CN107807323A discloses a circuit board health monitoring method, a detection device and a detection system, which uses an induction circuit to monitor the distortion generated when a fixed mode signal is transmitted on a signal line between chips, and records the time parameters of the induction circuit, and obtains the output frequency, and finally obtains the frequency deviation value, and obtains the health status of the circuit board by comparing it with the deviation threshold. The embodiments of the present invention use time parameters (for example, the ring oscillation frequency or the delay amount of the delay device) as the identifier of the fixed mode signal, indirectly reflecting the health status of the circuit board, and can be combined with the chip and the digital signal processing unit on the circuit board to realize the autonomous detection of the health status of the circuit board, and the implementation is simple and versatile, and can not only realize the detection of the health status of a specific signal line, but also realize the detection of the overall health status of the circuit board; it can be seen that when the scheme monitors the health status of the circuit board, it only analyzes the output frequency signal of the chip, and there are problems such as low efficiency of the health status monitoring of the circuit board and short life of the circuit board. Summary of the invention

[0004] An object of the present invention is to provide a circuit board health status monitoring system to solve at least one of the problems existing in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A circuit board health status monitoring system, comprising:

[0007] A circuit board data acquisition module is used to acquire circuit board data;

[0008] An operation monitoring module is used to analyze the operation status of the circuit board according to the circuit board temperature and circuit board voltage collected during the monitoring period;

[0009] A power monitoring module is used to analyze the power status of the circuit board according to the circuit board input power and circuit board output power obtained during the monitoring period;

[0010] An alarm module is used to warn the user of abnormal circuit board status based on the analysis results of the circuit board operation status and the power status of the circuit board during the monitoring period;

[0011] A clock signal analysis module is used to analyze the jitter abnormality of the circuit board clock signal according to the actual arrival time and clock frequency of the circuit board clock signal collected during the management cycle;

[0012] An impedance analysis module is used to analyze the impedance state of the circuit board according to the circuit board impedance collected during the management period, and to process the analysis process of the circuit board impedance state according to the circuit board noise collected during the management period;

[0013] The management module is used to monitor the health status of the circuit board according to the abnormal circuit board status alarm results of each monitoring period within the management period, the circuit board clock signal jitter abnormality and the circuit board impedance status.

[0014] Further, the operation monitoring module includes an operation analysis unit, which is used to analyze the temperature state of the circuit board according to the circuit board temperature t0 collected during the monitoring period and each preset temperature, and the circuit board temperature state includes normal and abnormal;

[0015] The operation analysis unit analyzes the circuit board voltage status according to the circuit board voltage V0 and the preset voltage V1 collected during the monitoring period, and the circuit board voltage status includes normal and abnormal.

[0016] Furthermore, the operation monitoring module also includes an operation monitoring unit, which is used to analyze the operation status of the circuit board according to the analysis results of the circuit board temperature status and the circuit board voltage status within the monitoring period, and the operation status of the circuit board includes a normal state and an abnormal state.

[0017] Further, the power monitoring module is used to analyze the abnormality of the circuit board power according to the circuit board input power p1 and the circuit board output power p2 obtained during the monitoring period, and the circuit board power abnormality includes normal and abnormal;

[0018] The power monitoring module analyzes the power status of the circuit board according to the analysis result of the power abnormality of the circuit board within the monitoring period. The power status of the circuit board includes normal and abnormal.

[0019] Furthermore, the alarm module is used to warn the user of abnormal circuit board status according to the analysis results of the circuit board operation status and the power status of the circuit board during the monitoring period, wherein:

[0020] If the operating status of the circuit board is normal and the power status of the circuit board is normal during the monitoring period, the alarm module does not issue an abnormal circuit board status alarm to the user; if the operating status of the circuit board is abnormal or the power status of the circuit board is abnormal during the monitoring period, the alarm module issues an abnormal circuit board status alarm to the user.

[0021] Furthermore, the clock signal analysis module includes a deviation calculation unit, which is used to calculate the clock jitter deviation of the jth circuit board clock signal based on the actual arrival time tj of the jth circuit board clock signal collected during the management period and the clock frequency sp, so as to obtain the clock jitter deviation cj of the jth circuit board clock signal.

[0022] Furthermore, the clock signal analysis module also includes a clock signal analysis unit, which is used to calculate the circuit board clock signal jitter coefficient D according to the analysis result of the clock jitter deviation of the circuit board clock signal within the management period, and analyze the circuit board clock signal jitter abnormality by comparing the circuit board clock signal jitter coefficient D with the preset jitter coefficient d0. The circuit board clock signal jitter abnormality includes normal and abnormal. If the circuit board clock signal jitter abnormality in the current management period is normal, the jitter abnormality index is set to DY1; if the circuit board clock signal jitter abnormality in the current management period is abnormal, the jitter abnormality coefficient is set to DY2.

[0023] Further, the impedance analysis module includes an impedance analysis unit, which is used to analyze the impedance state of the circuit board according to the circuit board impedance k0 and the preset impedance k1 collected during the management cycle. The circuit board impedance state includes a normal state and a drift state. If the circuit board impedance state of the current management cycle is a normal state, the impedance abnormality coefficient is set to ZY1; if the circuit board impedance state of the current management cycle is a drift state, the impedance abnormality coefficient is set to ZY2;

[0024] The impedance analysis unit processes the analysis process of the jitter abnormality of the circuit board clock signal when the impedance state of the circuit board is a drift state, and sets the processed preset jitter coefficient as d0'.

[0025] Further, the impedance analysis module further includes a noise analysis unit, which is used to analyze circuit board noise abnormality according to the circuit board noise f0 and the preset noise f1 collected during the management period, and the circuit board noise abnormality includes normal and abnormal;

[0026] The noise analysis unit analyzes the circuit board noise state according to the analysis result of the circuit board noise abnormality in the management period, and the circuit board noise state includes normal and abnormal;

[0027] The noise analysis unit processes the analysis process of the circuit board impedance state when the circuit board noise state is abnormal in the current management period, and sets the processed preset drift fluctuation threshold value as △k1.

[0028] Furthermore, the management module is used to monitor the health status of the circuit board according to the abnormal circuit board status alarm results of each monitoring period within the management period, the circuit board clock signal jitter abnormality and the circuit board impedance status, and output maintenance prompts to the user according to the monitoring results, wherein:

[0029] If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient≤u0, the management module determines that the health status of the circuit board in the current management cycle is normal, and does not output a maintenance prompt to the user;

[0030] If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient>u0, the management module determines that the health status of the circuit board in the current management cycle is abnormal, and outputs a maintenance prompt to the user;

[0031] Among them, w1 is the alarm weight, w2 is the jitter weight, w3 is the impedance weight, g1 is the number of monitoring cycles within the management cycle for issuing abnormal circuit board status alarms to the user, g0 is the number of monitoring cycles within the management cycle, and u0 is the preset status abnormality coefficient.

[0032] The beneficial effects of the present invention are as follows: by comprehensively collecting important parameters such as the temperature, voltage, impedance, power and clock signal of the circuit board, all-round real-time monitoring of the circuit board is achieved. The system can intelligently analyze these data, and timely discover and respond to potential faults in real time through modules such as operation monitoring, power monitoring and abnormal alarm. In addition, the system adopts flexible threshold settings and adaptive monitoring cycles to adapt to the specific needs of different circuit boards and ensure high-precision abnormality detection. Through the integration of these functions, users can take effective measures as soon as problems occur, significantly improve the stability and reliability of the equipment, reduce maintenance costs, extend the service life of electronic equipment, and improve the accuracy of circuit board health status monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0034] Figure 1 Schematic diagram of the structure of the circuit board health status monitoring system of this embodiment.

[0035] Figure 2 This is a schematic diagram of the structure of the operation monitoring module of this embodiment.

[0036] Figure 3 Schematic diagram of the structure of the clock signal analysis module in this embodiment.

[0037] Figure 4 Schematic diagram of the structure of the impedance analysis module of this embodiment. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments and accompanying drawings. Similar components in the accompanying drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0039] It should be noted that, although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0040] See also Figure 1 As shown, it is a schematic diagram of the structure of the circuit board health status monitoring system of this embodiment, and the system includes:

[0041] A circuit board data acquisition module is used to acquire circuit board data, wherein the circuit board data includes circuit board temperature, circuit board voltage, circuit board impedance, circuit board input power, circuit board output power, circuit board noise, and actual arrival time of a circuit board clock signal; the circuit board impedance is the impedance caused by parasitic resistance and capacitance on the circuit board. In this embodiment, no specific limitation is made on the method of acquiring circuit board data, and those skilled in the art can freely set it as long as the requirements for acquiring circuit board data are met, wherein the circuit board temperature can be acquired by a temperature sensor, the circuit board voltage can be acquired by a voltage sensor, the circuit board impedance can be acquired by an impedance analyzer, the circuit board input power and output power can be acquired by a power meter, the circuit board noise can be acquired by a noise analyzer, and the actual arrival time of the clock signal can be acquired by an oscilloscope.

[0042] Please continue reading Figure 1 As shown, the system also includes:

[0043] An operation monitoring module is connected to the circuit board data acquisition module, and the operation monitoring module is used to analyze the operation status of the circuit board according to the circuit board temperature and circuit board voltage collected during the monitoring period; it can be understood that the setting of the monitoring period is not specifically limited in this embodiment, and technical personnel in this field can set it freely as long as the setting requirements of the monitoring period are met, wherein the monitoring period can be set to 5 seconds, 10 seconds, etc.

[0044] See also Figure 2 As shown, the operation monitoring module includes:

[0045] An operation analysis unit is used to analyze the temperature state of the circuit board according to the circuit board temperature t0 collected during the monitoring period and each preset temperature. If t1≤t0≤t2, the operation analysis unit determines that the temperature state of the circuit board is normal. Otherwise, the operation analysis unit determines that the temperature state of the circuit board is abnormal. t1 is a first preset temperature, t2 is a second preset temperature, and t1<t2;

[0046] The operation analysis unit analyzes the circuit board voltage state according to the circuit board voltage V0 collected during the monitoring period and the preset voltage V1. If |V0-V1|≤△V, the operation analysis unit determines that the circuit board voltage state is normal; if |V0-V1|>△V, the operation analysis unit determines that the circuit board voltage state is abnormal, and △V is the preset voltage fluctuation threshold. The operation analysis unit can quickly judge the circuit board state according to the set temperature and voltage thresholds, thereby providing a quick response and reducing the risk of potential failures.

[0047] It can be understood that, in this embodiment, no specific limitation is imposed on the setting of each preset temperature, preset voltage and preset voltage fluctuation threshold, and those skilled in the art can freely set them as long as the setting requirements of each preset temperature, preset voltage and preset voltage fluctuation threshold are met, wherein the first preset temperature can be set to the lower limit of the operating temperature of the circuit board specification, the second preset temperature can be set to the upper limit of the operating temperature of the circuit board specification, the preset voltage can be set to the rated voltage of the circuit board, and the preset voltage fluctuation threshold can be set to the rated voltage of the circuit board × 0.1.

[0048] Please continue reading Figure 2 As shown, the operation monitoring module also includes:

[0049] An operation monitoring unit is connected to the operation analysis unit, and is used to analyze the operation state of the circuit board according to the analysis results of the circuit board temperature state and the circuit board voltage state within the monitoring period, so as to provide accurate data support for the analysis of the operation state, wherein:

[0050] If i 1 / i0≤α and i2 / i0≤α, the operation monitoring unit determines that the operation state of the circuit board in the current monitoring cycle is normal; if i 1 / i0>α or i2 / i0>α, the operation monitoring unit determines that the operation state of the circuit board in the current monitoring cycle is abnormal; the operation monitoring unit evaluates the operation state of the circuit board in the entire monitoring cycle in combination with the abnormal duration of the temperature and voltage states, and provides a more accurate indicator for the operation stability, thereby improving the accuracy of abnormal circuit board state alarms to users;

[0051] Among them, i0 is the duration of the monitoring cycle, i1 is the duration of the circuit board temperature state being abnormal during the monitoring cycle, i2 is the duration of the circuit board voltage state being abnormal during the monitoring cycle, and α is the preset abnormal proportion.

[0052] It can be understood that the setting of the preset abnormality ratio is not specifically limited in this embodiment, and those skilled in the art can freely set it as long as the setting requirements of the preset abnormality ratio are met, wherein the optimal value of the preset abnormality ratio is 0.06.

[0053] Please continue reading Figure 1 As shown, the system also includes:

[0054] A power monitoring module, which is connected to the circuit board data acquisition module, and is used to analyze the abnormality of circuit board power according to the circuit board input power p1 and circuit board output power p2 obtained during the monitoring period, wherein:

[0055] When (p1-p2) / p1≤β1, the power monitoring module determines that the power of the circuit board is normal; when (p1-p2) / p1>β1, the power monitoring module determines that the power of the circuit board is abnormal;

[0056] The power monitoring module analyzes the power state of the circuit board according to the analysis result of the power abnormality of the circuit board in the monitoring period. If i 3 / i0≤β2, the power monitoring module determines that the power state of the circuit board in the current monitoring period is normal. If i 3 / i0>β2, the power monitoring module determines that the power state of the circuit board in the current monitoring period is abnormal. The power monitoring module can accurately evaluate the energy efficiency of the circuit board by monitoring the input and output power, ensure that the system operates in an ideal state, and promptly discover power anomalies and losses, reduce the risk of equipment failure, thereby improving the accuracy of abnormal circuit board status alarms to users.

[0057] Among them, β1 is the first power abnormality coefficient, β2 is the second power abnormality coefficient, and i 3 is the duration of circuit board power abnormality within the monitoring period.

[0058] It can be understood that, in this embodiment, no specific limitation is imposed on the setting of each preset power abnormality coefficient, and those skilled in the art can set it freely, as long as the setting requirements of each preset power abnormality coefficient are met, among which, the optimal value of β1 is 0.08, and the optimal value of β2 is 0.1.

[0059] Please continue reading Figure 3 As shown, the system also includes:

[0060] An alarm module is connected to the operation monitoring module and the power monitoring module, and is used to warn the user of abnormal circuit board status according to the analysis results of the circuit board operation status and the analysis results of the circuit board power status within the monitoring period, wherein:

[0061] If the operating status of the circuit board is normal and the power status of the circuit board is normal during the monitoring period, the alarm module does not issue an abnormal circuit board status alarm to the user; if the operating status of the circuit board is abnormal or the power status of the circuit board is abnormal during the monitoring period, the alarm module issues an abnormal circuit board status alarm to the user; the alarm module combines the analysis results of the operating status and the power status to ensure accurate fault detection and reduce the chance of false alarms.

[0062] Please continue reading Figure 1 As shown, the system also includes:

[0063] A clock signal analysis module is connected to the circuit board data acquisition module, and the clock signal analysis module is used to analyze the clock jitter deviation of the circuit board clock signal according to the actual arrival time of the circuit board clock signal collected within the management period and the clock frequency sp, and analyze the jitter abnormality of the circuit board clock signal according to the analysis result; it can be understood that in this embodiment, no specific limitation is made to the setting of the management period, and technical personnel in this field can set it freely, as long as the setting requirements of the management period are met, wherein the setting of the management period should be greater than the setting of the monitoring period, and the management period can be set to 10min, 15min, etc.

[0064] See also Figure 3 As shown, the clock signal analysis module includes:

[0065] The deviation calculation unit is used to calculate the clock jitter deviation cj of the jth circuit board clock signal by comparing the actual arrival time tj of the jth circuit board clock signal collected within the management period with the clock frequency sp, and set cj=tj-1 / (2×sp); the deviation calculation unit can efficiently calculate the jitter deviation of each clock signal and improve the accuracy of signal analysis; in this embodiment, the method for obtaining the clock frequency is not specifically limited, and technical personnel in this field can freely set it as long as the requirements for obtaining the clock frequency are met, wherein the clock frequency can be obtained through interaction.

[0066] Please continue reading Figure 3 As shown, the clock signal analysis module also includes:

[0067] A clock signal analysis unit is connected to the deviation calculation unit, and is used to calculate the circuit board clock signal jitter coefficient D according to the analysis result of the clock jitter deviation of the circuit board clock signal in the management period, so as to quantify the jitter of the circuit board clock signal in the management period, and set:

[0068]

[0069] Wherein, cp is the average value of the clock jitter deviation of the circuit board clock signal in the management period, and J is the number of circuit board clock signals collected in the management period;

[0070] The clock signal analysis unit analyzes the jitter abnormality of the circuit board clock signal by comparing the jitter coefficient D of the circuit board clock signal with the preset jitter coefficient d0. If D≤d0, the clock signal analysis unit determines that the jitter of the circuit board clock signal in the current management cycle is normal, and sets the jitter abnormality index to DY1, setting DY1=0; if D>d0, the clock signal analysis unit determines that the jitter of the circuit board clock signal in the current management cycle is abnormal, and sets the jitter abnormality coefficient to DY2, setting DY2=exp[3×(D-d0)-3]; the clock signal analysis unit can systematically count the jitter of the clock signal within the management cycle, provide data support for subsequent health status analysis, and compare the jitter coefficient D with the preset value, so as to intelligently distinguish whether the clock signal is healthy and improve the accuracy of circuit board health status monitoring.

[0071] It can be understood that the present embodiment does not specifically limit the setting of the preset jitter coefficient, and those skilled in the art can freely set it as long as the setting requirements of the preset jitter coefficient are met, wherein the best value of d0 is 0.15.

[0072] Please continue reading Figure 1 As shown, the system also includes:

[0073] An impedance analysis module is connected to the clock signal analysis module, and is used to analyze the circuit board impedance state according to the circuit board impedance collected during the management cycle, and to process the analysis process of the circuit board impedance state according to the circuit board noise collected during the management cycle.

[0074] See also Figure 4 As shown, the impedance analysis module includes:

[0075] The impedance analysis unit is used to analyze the impedance state of the circuit board according to the circuit board impedance k0 and the preset impedance k1 collected during the management period to identify potential aging or failure phenomena, wherein:

[0076] If |k0-k1| / △k≤L, the impedance analysis unit determines that the impedance state of the circuit board in the current management cycle is a normal state, and sets the impedance abnormality coefficient to ZY1, setting ZY1=0; if |k0-k1| / △k>L, the impedance analysis unit determines that the impedance state of the circuit board in the current management cycle is a drift state, and sets the impedance abnormality coefficient to ZY2, setting ZY2=|k0-k1| / △kL;

[0077] The impedance analysis unit processes the analysis process of the jitter abnormality of the circuit board clock signal when the impedance state of the circuit board is a drift state, and sets the preset jitter coefficient after processing as d0', and sets d0'=d0×[1+η×ln(|k0-k1| / △k-L+1)]; the impedance analysis unit improves the robustness of the circuit board under different working conditions and reduces the failure rate by providing accurate impedance analysis, and processes the analysis process of the jitter abnormality of the clock signal according to the analysis result of the impedance state, so as to reduce the influence of the excessive impedance of the circuit board on the clock signal, thereby improving the accuracy of the circuit board health status monitoring;

[0078] Wherein, △k is the preset drift fluctuation threshold, L is the preset impedance abnormality threshold, and η is the preset proportional coefficient.

[0079] It can be understood that, in this embodiment, there is no specific limitation on the setting of the preset drift fluctuation threshold, the preset impedance abnormality threshold and the preset proportional coefficient. Those skilled in the art can set them freely as long as the setting requirements of the preset drift fluctuation threshold, the preset impedance abnormality threshold and the preset proportional coefficient are met. Among them, the optimal value of k1 is 50Ω, the optimal value of △k is 5Ω, and the optimal value of η is 0.36.

[0080] Please continue reading Figure 4 As shown, the impedance analysis module also includes:

[0081] A noise analysis unit connected to the impedance analysis unit, the noise analysis unit is used to analyze the abnormality of the circuit board noise according to the circuit board noise f0 and the preset noise f1 collected during the management period, wherein:

[0082] If |f0-f1| / f1≤H, the noise analysis unit determines that the circuit board noise is normal; if |f0-f1| / f1>H, the noise analysis unit determines that the circuit board noise is abnormal, and H is a preset noise fluctuation threshold;

[0083] The noise analysis unit analyzes the circuit board noise state according to the analysis result of the circuit board noise abnormality in the management cycle. If h1 / h0≤F, the noise analysis unit determines that the circuit board noise state in the current management cycle is normal. If h1 / h0>F, the noise analysis unit determines that the circuit board noise state in the current management cycle is abnormal. h1 is the duration of the circuit board noise abnormality in the management cycle, h0 is the duration of the management cycle, and F is the preset noise abnormality ratio.

[0084] The noise analysis unit processes the analysis process of the impedance state of the circuit board when the noise state of the circuit board is abnormal in the current management cycle, sets the preset drift fluctuation threshold after processing to △k1, and sets △k1=△k×ln[e+3×(h1 / h0-F)+1] / l n4, where e is the natural logarithm; the noise analysis unit provides comprehensive monitoring of the circuit board noise, and can timely identify interference and aging phenomena that may occur during the operation of the circuit board. At the same time, the analysis process of the impedance state is adjusted according to the analysis result of the noise state, which helps to reduce the impact of the abnormal noise state on the impedance state analysis process.

[0085] It can be understood that, in this embodiment, the setting of the preset noise, the preset noise fluctuation threshold and the preset noise anomaly ratio is not specifically limited, and those skilled in the art can set them freely, as long as the setting requirements of the preset noise, the preset noise fluctuation threshold and the preset noise anomaly ratio are met. Among them, the preset noise can be measured at the initial debugging of the circuit board to find the number of samples and calculate the mean. As the preset noise, the best value of H is 0.2, and the best value of F is 0.1.

[0086] Please continue reading Figure 1 As shown, the system also includes:

[0087] A management module is connected to the alarm module and the impedance analysis module. The management module is used to monitor the health status of the circuit board according to the abnormal alarm results of the circuit board status in each monitoring period within the management period, the abnormal jitter of the circuit board clock signal and the impedance status of the circuit board, and output maintenance prompts to the user according to the monitoring results, wherein:

[0088] If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient≤u0, the management module determines that the health status of the circuit board in the current management cycle is normal, and does not output a maintenance prompt to the user;

[0089] If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient>u0, the management module determines that the health status of the circuit board in the current management period is abnormal, and outputs a maintenance prompt to the user; the management module comprehensively analyzes the health status of the circuit board in various aspects to achieve global monitoring and evaluation to ensure the overall stability of the system, and helps the user make timely and reasonable maintenance decisions based on the abnormal status alarm results within the monitoring period to avoid losses;

[0090] Among them, w1 is the alarm weight, w2 is the jitter weight, w3 is the impedance weight, w1+w2+w3=1, g1 is the number of monitoring cycles within the management cycle for issuing abnormal circuit board status alarms to the user, g0 is the number of monitoring cycles within the management cycle, and u0 is the preset status abnormality coefficient.

[0091] It can be understood that, in this embodiment, there is no specific limitation on the setting of each weight and preset state abnormality coefficient, and those skilled in the art can set it freely, as long as the setting requirements of each weight and preset state abnormality coefficient are met, among which the best value of w1 is 0.5, the best value of w2 is 0.2, the best value of w3 is 0.3, and the best value of u0 is 0.15.

[0092] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A circuit board health status monitoring system, characterized in that: include: A circuit board data acquisition module is used to acquire circuit board data; An operation monitoring module is used to analyze the operation status of the circuit board according to the circuit board temperature and circuit board voltage collected during the monitoring period; A power monitoring module is used to analyze the power status of the circuit board according to the circuit board input power and circuit board output power obtained during the monitoring period; An alarm module is used to warn the user of abnormal circuit board status based on the analysis results of the circuit board operation status and the power status of the circuit board during the monitoring period; A clock signal analysis module is used to analyze the jitter abnormality of the circuit board clock signal according to the actual arrival time and clock frequency of the circuit board clock signal collected during the management cycle; An impedance analysis module is used to analyze the impedance state of the circuit board according to the circuit board impedance collected during the management period, and to process the analysis process of the circuit board impedance state according to the circuit board noise collected during the management period; The management module is used to monitor the health status of the circuit board according to the abnormal circuit board status alarm results of each monitoring period within the management period, the circuit board clock signal jitter abnormality and the circuit board impedance status.

2. The circuit board health status monitoring system according to claim 1, characterized in that: The operation monitoring module includes an operation analysis unit, which is used to analyze the temperature state of the circuit board according to the circuit board temperature t0 collected during the monitoring period and each preset temperature, and the circuit board temperature state includes normal and abnormal; The operation analysis unit analyzes the circuit board voltage status according to the circuit board voltage V0 and the preset voltage V1 collected during the monitoring period, and the circuit board voltage status includes normal and abnormal.

3. The circuit board health status monitoring system according to claim 2, characterized in that: The operation monitoring module also includes an operation monitoring unit, which is used to analyze the operation state of the circuit board according to the analysis results of the circuit board temperature state and the circuit board voltage state within the monitoring period. The operation state of the circuit board includes a normal state and an abnormal state.

4. The circuit board health status monitoring system according to claim 3, characterized in that: The power monitoring module is used to analyze the abnormality of circuit board power according to the circuit board input power p1 and circuit board output power p2 obtained during the monitoring period, and the abnormality of circuit board power includes normal and abnormal; The power monitoring module analyzes the power status of the circuit board according to the analysis result of the power abnormality of the circuit board within the monitoring period. The power status of the circuit board includes normal and abnormal.

5. The circuit board health status monitoring system according to claim 4, characterized in that: The alarm module is used to warn the user of abnormal circuit board status according to the analysis results of the circuit board operation status and the power status of the circuit board during the monitoring period, wherein: If the operating status of the circuit board is normal and the power status of the circuit board is normal during the monitoring period, the alarm module does not issue an abnormal circuit board status alarm to the user; if the operating status of the circuit board is abnormal or the power status of the circuit board is abnormal during the monitoring period, the alarm module issues an abnormal circuit board status alarm to the user.

6. The circuit board health status monitoring system according to claim 5, characterized in that: The clock signal analysis module includes a deviation calculation unit, which is used to calculate the clock jitter deviation of the jth circuit board clock signal according to the actual arrival time tj of the jth circuit board clock signal collected within the management period and the clock frequency sp, so as to obtain the clock jitter deviation cj of the jth circuit board clock signal.

7. The circuit board health status monitoring system according to claim 6, characterized in that: The clock signal analysis module also includes a clock signal analysis unit, which is used to calculate the circuit board clock signal jitter coefficient D according to the analysis result of the clock jitter deviation of the circuit board clock signal within the management period, and analyze the circuit board clock signal jitter abnormality by comparing the circuit board clock signal jitter coefficient D with the preset jitter coefficient d0. The circuit board clock signal jitter abnormality includes normal and abnormal. If the circuit board clock signal jitter abnormality in the current management period is normal, the jitter abnormality index is set to DY1; if the circuit board clock signal jitter abnormality in the current management period is abnormal, the jitter abnormality coefficient is set to DY2.

8. The circuit board health status monitoring system according to claim 7, characterized in that: The impedance analysis module includes an impedance analysis unit, which is used to analyze the impedance state of the circuit board according to the circuit board impedance k0 and the preset impedance k1 collected during the management cycle. The circuit board impedance state includes a normal state and a drift state. If the circuit board impedance state in the current management cycle is a normal state, the impedance abnormality coefficient is set to ZY1; if the circuit board impedance state in the current management cycle is a drift state, the impedance abnormality coefficient is set to ZY2; The impedance analysis unit processes the analysis process of the jitter abnormality of the circuit board clock signal when the impedance state of the circuit board is a drift state, and sets the processed preset jitter coefficient as d0'.

9. The circuit board health status monitoring system according to claim 8, characterized in that: The impedance analysis module further includes a noise analysis unit, which is used to analyze circuit board noise abnormality according to the circuit board noise f0 and the preset noise f1 collected during the management period, and the circuit board noise abnormality includes normal and abnormal; The noise analysis unit analyzes the circuit board noise state according to the analysis result of the circuit board noise abnormality in the management period, and the circuit board noise state includes normal and abnormal; The noise analysis unit processes the analysis process of the circuit board impedance state when the circuit board noise state is abnormal in the current management period, and sets the processed preset drift fluctuation threshold value as △k1.

10. The circuit board health status monitoring system according to claim 9, characterized in that: The management module is used to monitor the health status of the circuit board according to the abnormal circuit board status alarm results of each monitoring period within the management period, the circuit board clock signal jitter abnormality and the circuit board impedance status, and output maintenance prompts to the user according to the monitoring results, wherein: If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient≤u0, the management module determines that the health status of the circuit board in the current management cycle is normal, and does not output a maintenance prompt to the user; If w1×g1 / g0+w2×jitter abnormal coefficient+w3×impedance abnormal coefficient>u0, the management module determines that the health status of the circuit board in the current management cycle is abnormal, and outputs a maintenance prompt to the user; Among them, w1 is the alarm weight, w2 is the jitter weight, w3 is the impedance weight, g1 is the number of monitoring cycles for abnormal circuit board status alarms to the user within the management cycle, g0 is the number of monitoring cycles within the management cycle, and u0 is the preset status abnormality coefficient.

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