CN111999639A - Analysis method and system capable of simultaneously detecting multiple groups of mixed signals - Google Patents
Analysis method and system capable of simultaneously detecting multiple groups of mixed signals Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention is suitable for the field of circuit board measurement, in particular to an analysis system capable of simultaneously detecting a plurality of groups of mixed signals, which comprises a mixed signal logic analyzer device and a signal detection device; the mixed signal logic analyzer device and the signal detection device complete information connection, so that the signal detection device can receive a trigger result, and after the trigger result and a detection rule are compared with each other, a detection report file is generated for a detection person to judge whether the circuit board to be detected is abnormal; the electronic signals of a plurality of channels of the circuit board to be detected are acquired through the multiple channels simultaneously, detection personnel do not need to measure the circuit in batches, moreover, the triggering operation of signal waveforms can be automatically carried out through the set signal taking rule, in addition, the signal triggering result can be automatically detected through the set signal detection rule, the detection personnel do not need to compare the detection specification in a manual mode, all measuring points of the circuit board can be ensured to be detected, and the detection time and the detection manpower input can be greatly shortened.
Description
Technical Field
The invention relates to the field of circuit board measurement, in particular to an analysis method and system capable of detecting multiple groups of mixed signals simultaneously.
Background
According to the current circuit board design and verification stage, the main electronic components of the power sequence specification should meet a certain Timing (Timing) of the power sequence, which may cause the circuit to fail to work normally too early or too late, or, the level value and the level rise time (Risetime) of the power-on procedure must meet the specification, the current practice is that the tester needs to hold the oscilloscope probe by hand, the circuit to be measured is measured, after the measurement is finished, the recording is carried out, and after the specification file is compared, whether the circuit meets the specification or not is judged, because a general oscilloscope at most has 8 channels, even if the tool is provided to connect the oscilloscope probe with the circuit board to be measured, the tester does not need to maintain the handheld measurement state for a long time, but when the tester carries out measurement, the detection equipment is required to be manually operated to adjust parameters, the measurement result is manually checked after the detection is finished, and a report is finally written, so that the detection process is quite time-consuming;
the design of the circuit board of the present electronic product is very complicated, depending on the circuit board detection requirement, the power-on procedure needs to measure the test points of more than 8 channels at the same time if necessary, and the quantity and the variety of the circuit boards to be detected of each product are various, and the detection rules are all different, so that an engineer in charge of measurement can only perform sampling inspection, and cannot perform comprehensive measurement on the required channels, which causes insufficient sampling;
therefore, if all the measurement points are expected to be actually measured, a great deal of manpower is required to be invested to execute a measurement item, and great pressure is also caused to the manpower cost.
Disclosure of Invention
Aiming at the problems that the design of a circuit board of the current electronic product is very complex, the power-on program needs to simultaneously measure more than 8 channels of test points according to the detection requirements of the circuit board as necessary, and the quantity and the variety of the circuit boards to be detected of each product are various, and the detection rules are different, so that an engineer in charge of measurement can only perform sampling inspection and cannot comprehensively measure the required channels, and the sampling is insufficient; therefore, the present invention is directed to provide an analysis method and system for simultaneously detecting multiple sets of mixed signals, so as to solve the above-mentioned problems. In order to achieve the purpose, the invention provides the following technical scheme:
an analysis system capable of detecting a plurality of groups of mixed signals simultaneously comprises a mixed signal logic analyzer device and a signal detection device; the mixed signal logic analyzer device and the signal detection device complete information connection; wherein the content of the first and second substances,
the mixed signal logic analyzer device comprises a signal processing module for simultaneously processing input signals of 8-16 channels; the signal processing module is connected with a signal input channel, is electrically connected with the plurality of channels through the signal input channel at the same time, and receives the mixed signal from each channel; the signal processing module transmits the signal triggering information to the signal detection device through the connected information transmission module; a comparator module is connected between the signal processing module and the signal input channel, and judges the high potential and the low potential of the digital signal through the arranged comparator module, and forms a digital waveform between the high potential and the low potential;
the shunt path connected with the signal input channel by the signal processing module comprises an analog signal Path (PA) and a digital signal Path (PD); the analog signal path converts an analog signal into a digital signal by utilizing an analog signal conversion module; the comparator module is arranged on a digital signal path; and the digital signal path transmits the analog signal trigger information and the digital signal trigger information to the signal detection device through the arranged information transmission module; in a further scheme, the analog signal conversion module is an analog-digital converter;
the signal detection device comprises an operation module for operation, and the function of the operation module comprises standby logic operation, temporary storage of operation results and storage of execution instruction positions; the operation module is connected with a signal detection module, a detection report module and a detection database;
the signal detection module establishes a detection rule table, and compares the digital signal trigger information and the analog signal trigger information of the collected mixed signal according to the detection rule table, the detection rule table can input a signal access rule and a signal detection rule, so that after a detector can establish and input the detection rule table, the signal detection module compares the signal trigger information and generates a signal comparison result according to the signal detection rule of the detection rule table;
the detection report module is stored as a detection report file according to the signal comparison result, so that an operator can file and forward the detection report file and judge whether the circuit board to be detected is abnormal, and the detection report file is a format file of CSV (CommaSeparatedValue);
the detection database stores signal detection rules and detection rule tables of various circuit boards, the detection rule tables correspond to the signal detection rules, and the detection rule tables comprise timing detection columns, level value detection columns and other detection item columns, and are established and modified according to requirements.
The electronic signals of a plurality of channels of the circuit board to be detected are acquired simultaneously through multiple channels, detection personnel do not need to measure the circuit in batches, moreover, signal waveform triggering operation can be automatically carried out through the set signal taking rule, and signal triggering results can be automatically detected through the set signal detection rule.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the operation module includes a Central Processing Unit (CPU) or a Micro Controller Unit (MCU).
The invention can detect the analysis system of the multi-group mixed signal at the same time: the signal detection module carries out sequence detection (TimingCheck) and level value detection (HWStrap); wherein the content of the first and second substances,
the timing detection means detecting whether the phase value of the mixed signal meets the signal detection rule;
the level value detection means whether the logic state and level value of the mixed signal meet the signal detection rule.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the signal detection device comprises an input module, wherein the input module is electrically connected with the operation module, the input module can be used for a detection person to set and input a detection rule table, and the input module can be a touch screen, a keyboard, a mouse or a voice input device.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the input signal of detecting the rule table adopts rule and signal detection rule, wherein, the signal is taken the rule and is contained:
detecting a digital signal, wherein the digital signal is in logic states 0 and 1, and the setting value is in the logic state;
the analog signal is detected, the analog level setting value is set by adopting a level value or a level amplitude percentage, wherein the level value setting is mainly applied to the working level of the signal to be detected, each channel is different and is set according to the actual level, the level amplitude percentage is applied to the detection voltage, the height value between the level amplitudes is specified by the amplitude percentage, and the detection time sequence phase is used in the process of long level rising and falling time.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the detection rule table can be inputted with a signal access rule and a signal detection rule, wherein the setup items of the detection rule table include:
and a detection item having a timing detection (TimingCheck) for detecting whether the phase value of the mixed signal meets the signal detection rule by recording as 'Pass' and not by recording as 'Fail', and a level value detection (HWStrap) for detecting whether the logic state and the level value of the mixed signal meet the signal detection rule by recording as 'Pass' and not by recording as 'Fail'.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the mixed signal logic analysis device is connected with a multi-channel adapter plate to complete information connection, and the mixed signal logic analysis device can acquire mixed signals of a plurality of channels through the multi-channel adapter plate.
The invention can detect the analysis system of the multi-group mixed signal at the same time: the mixed signal logic analysis device also comprises a data buffer module;
the data buffer module is connected with the signal processing module to buffer and store the signal data, and buffer the data to adjust the flow transmitted by the data stream through the data transmission module during the transient increase of the data stream of the input electronic signal, and safely store the signal data in the data buffer module during the continuous increase of the data stream of the input electronic signal, and transmit the flow by the data transmission module; wherein the data buffer module is a dynamic random access memory.
Another object of the present invention is to provide an analysis method capable of detecting multiple sets of mixed signals simultaneously, comprising the following steps:
1) setting a detection rule table, wherein a detection person can operate a signal detection device according to a detection specification given by a circuit board to be detected, establish a detection rule table and input a signal access rule and a signal detection rule in the detection rule table;
2) a step of loading a detection rule table, in which a detection person electrically connects the mixed signal logic analysis device to a circuit board to be detected, and when the signal detection device reads the set detection rule table, the signal detection device transmits a signal access rule to the mixed signal logic analysis device;
3) after the mixed signal logic analysis device is electrically connected with the signal detection device, a detection person can execute the electrifying program on the circuit board to be detected, so that the mixed signal logic analysis device can receive the mixed signal of the circuit board to be detected based on a signal access rule, an input channel of the mixed signal logic analysis device can receive the mixed signal, and the mixed signal can be further divided into an analog signal path and a digital signal path, so that the mixed signal logic analysis device can respectively process signals of different paths;
4) after the mixed signal is shunted to the analog signal path, the analog signal conversion module acquires the mixed signal through the analog signal path and converts the analog signal part of the mixed signal into a first digital signal, wherein the analog signal is converted into a digital signal; after the mixed signal is shunted to the digital signal path, the comparator module collects the mixed signal, and then the digital signal component of the mixed signal is processed through the comparator module, wherein the comparator module processes the mixed signal based on a preset trigger level and a trigger condition and generates a second digital signal according to a processing result;
the signal processing module obtains analog signal trigger information and digital signal trigger information after a signal acquisition period is finished, and transmits each trigger information to the signal detection device, so that the signal detection device can compare detection rules of the analog signal trigger information and the digital signal trigger information after acquiring the analog signal trigger information and the digital signal trigger information;
5) comparing the detection rules, wherein when the signal detection device detects, the signal detection device collects a detection rule table which is set to be finished, and detects the analog signal trigger information and the digital signal trigger information based on the signal detection rules and formats of the detection rule table, wherein after the signal detection device finishes the timing detection and the level value detection of the analog signal trigger information and the digital signal trigger information, the signal detection device can generate a signal comparison result according to the detection result, and the signal comparison result comprises a timing detection result and a level value detection result;
6) and a step of generating a detection report, wherein after the signal detection device obtains the signal comparison result, the signal detection device can store the signal comparison result as a detection report file, and the signal detection device can read the detection report file to display a detection rule table so that a detection person can inspect a time sequence detection result and a level value detection result of the detection rule table to confirm whether the circuit board to be detected is abnormal.
Compared with the prior art, the analysis system capable of simultaneously detecting a plurality of groups of mixed signals comprises a mixed signal logic analyzer device and a signal detection device; the mixed signal logic analyzer device and the signal detection device complete information connection, so that the signal detection device can receive a trigger result, and after the trigger result and a detection rule are compared with each other, a detection report file is generated for a detection person to judge whether the circuit board to be detected is abnormal; the electronic signals of a plurality of channels of the circuit board to be detected are acquired simultaneously through multiple channels, detection personnel do not need to measure the circuit in batches, moreover, signal waveform triggering operation can be automatically carried out through the set signal taking rule, and signal triggering results can be automatically detected through the set signal detection rule.
Drawings
Fig. 1 is a connection block diagram of an analysis system capable of detecting multiple sets of mixed signals simultaneously according to the present invention.
Fig. 2 is a connection block diagram of the mixed signal logic analyzer apparatus of fig. 1.
Fig. 3 is a connection block diagram of the signal detection apparatus of fig. 1.
FIG. 4 is a flow chart of an analysis method for simultaneously detecting multiple sets of mixed signals according to the present invention.
FIG. 5 is a block diagram showing the steps of loading the rule table of FIG. 4.
In the figure:
20-a circuit board to be detected; 21-setting a detection rule table; 22-loading a detection rule table; 23-picking up signals by the power-on program; 24-executing the trigger operation step; 25-comparing the detection rules; 26-generating a detection report;
101-mixed signal logic analyzer device; 102-signal detection means;
1011-signal processing module; 1012-signal input channel; 1013-a comparator module; 1014-analog signal conversion module; 1015-information transmission module;
1021-an arithmetic module; 1022-a signal detection module; 1023-a detection report module; 1024-test database.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
The present invention is directed to a method and system for analyzing a plurality of sets of mixed signals, which can detect a plurality of sets of mixed signals simultaneously, and solve the above-mentioned problems, by which a lot of manpower is required to perform a measurement item if it is expected that all measurement points can be actually measured, and a great pressure is also exerted on the labor cost. In order to achieve the purpose, the invention provides the following technical scheme:
in the embodiment of the invention, as shown in fig. 1-3:
an analysis system capable of detecting multiple groups of mixed signals simultaneously comprises a mixed signal logic analyzer device 101 and a signal detection device 102; the mixed signal logic analyzer device 101 and the signal detection device 102 complete information connection, so that the signal detection device 102 can receive a trigger result, and after the trigger result and a detection rule are compared with each other, a detection report file is generated for a detection person to judge whether the circuit board to be detected is abnormal; wherein the content of the first and second substances,
the mixed signal logic analyzer device 101 includes a signal processing module 1011 for simultaneously processing 8-16 channels of input signals; the signal processing module 1011 is connected with a signal input channel 1012, electrically connected with a plurality of channels through the signal input channel 1012 at the same time, and receives a mixed signal from each channel; the signal processing module 1011 transmits the signal trigger information to the signal detection device 102 through the connected information transmission module 1015; a comparator module 1013 is connected between the signal processing module 1011 and the signal input channel 1012, and the comparator module 1013 determines the high and low potentials of the digital signal, and forms a digital waveform between the high and low potentials; the shunt path connected between the signal processing module 1011 and the signal input channel 1012 includes an analog signal path and a digital signal path; the analog signal path converts an analog signal into a digital signal by using an analog signal conversion module 1014 arranged on the analog signal path; the comparator module 1013 is disposed on a digital signal path; and, the digital signal path transmits the analog signal trigger information and the digital signal trigger information to the signal detection device 102 through the installed information transmission module 1015; as a further alternative, the analog signal conversion module 1014 is an analog-to-digital converter;
the signal detection device 102 comprises an operation module 1021 for operation, and the operation module 1021 has functions of preparing logic operation, temporarily storing operation results and storing execution instruction positions; the operation module 1021 is connected with a signal detection module 1022, a detection report module 1023 and a detection database 1024; the signal detection module 1022 establishes a detection rule table, and compares the acquired digital signal trigger information and analog signal trigger information of the mixed signal according to the detection rule table, the detection rule table can input a signal access rule and a signal detection rule, so that after a detection person can establish and input the detection rule table, the signal detection module 1022 compares the signal trigger information of each pen according to the signal detection rule of the detection rule table and generates a signal comparison result; the detection report module 1023 stores the signal comparison result as a detection report file for an operator to archive and forward the detection report file, and judges whether the circuit board to be detected is abnormal, wherein the detection report file is a format file of CSV (CommaSeparatedValue); the detection database 1024 stores signal detection rules and detection rule tables of various circuit boards, the detection rule tables correspond to the signal detection rules, and the detection rule tables comprise timing detection columns, level value detection columns and other detection item columns, and are established and modified according to requirements; the operation module 1021 comprises a central processing unit or a microcontroller; the signal detection module 1022 performs sequence detection and level value detection; wherein, the timing detection means detecting whether the phase value of the mixed signal conforms to the signal detection rule; the level value detection means whether the logic state and level value of the mixed signal meet the signal detection rule.
In the embodiment of the invention, as shown in fig. 1-3:
the signal detection device 102 includes an input module electrically connected to the operation module 1021, the input module can be configured by a detection person and input a detection rule table, and the input module can be a touch screen, a keyboard, a mouse or a voice input device.
In the embodiment of the present invention, the input signal of the detection rule table adopts a rule and a signal detection rule, wherein the signal access rule includes:
detecting a digital signal, wherein the digital signal is in logic states 0 and 1, and the setting value is in the logic state;
the analog signal is detected, the analog level setting value is set by adopting a level value or a level amplitude percentage, wherein the level value setting is mainly applied to the working level of the signal to be detected, each channel is different and is set according to the actual level, the level amplitude percentage is applied to the detection voltage, the height value between the level amplitudes is specified by the amplitude percentage, and the detection time sequence phase is used in the process of long level rising and falling time.
The detection rule table can input a signal access rule and a signal detection rule, wherein the setting items of the detection rule table comprise a detection item which has a time sequence detection and a level value detection, wherein the time sequence detection means that whether the phase value of the mixed signal meets the signal detection rule is recorded as 'Pass' and is not recorded as 'Fail', the level value detection means that whether the logic state and the level value of the mixed signal meet the signal detection rule is recorded as 'Pass' and is not recorded as 'Fail'.
In the embodiment of the invention, as shown in fig. 2:
the mixed signal logic analysis device 101 is connected with a multi-channel adapter plate to complete information connection, and the mixed signal logic analysis device 101 can acquire mixed signals of a plurality of channels through the multi-channel adapter plate. The multi-channel adapter plate simultaneously collects electronic signals of a plurality of channels of the circuit board to be detected, and detection personnel do not need to measure the circuit in batches.
The mixed signal logic analyzer 101 further comprises a data buffer module; the data buffer module is connected to the signal processing module 1011 for buffering and storing signal data, and performs data buffering to adjust the flow rate of the data stream transmitted through the data transmission module 1015 during the transient increase of the data stream of the input electronic signal, and safely stores the signal data in the data buffer module during the continuous increase of the data stream of the input electronic signal, and then transmits the flow rate by the data transmission module 1015; wherein the data buffer module is a dynamic random access memory.
In the embodiment of the invention, as shown in fig. 1-5:
in addition, an analysis method capable of simultaneously detecting a plurality of groups of mixed signals is provided, which comprises the following steps:
1) a step 21 of setting a detection rule table, in which a detection person can operate the signal detection device 102 according to a detection specification given by the circuit board 20 to be detected, establish a detection rule table, and input a signal access rule and a signal detection rule in the detection rule table;
2) a step 22 of loading a detection rule table, in which after the detection personnel electrically connects the mixed signal logic analysis device 101 to a circuit board 20 to be detected, and after the signal detection device 102 reads the set detection rule table, the signal detection device 102 transmits the signal access rule to the mixed signal logic analysis device 101;
3) a step 23 of picking up signals by the power-on program, wherein after the mixed signal logic analysis device 101 and the signal detection device 102 are electrically connected, a detection person can execute the power-on program on the circuit board 20 to be detected, so that the mixed signal logic analysis device 101 can receive the mixed signals of the circuit board 20 to be detected based on the signal access rule, the input channel 1012 of the mixed signal logic analysis device 101 can receive the mixed signals, and the mixed signals can be further divided into an analog signal path and a digital signal path, so that the mixed signal logic analysis device 101 can respectively process signals of different paths;
4) after the mixed signal is shunted to the analog signal path, the analog signal conversion module 1014 collects the mixed signal via the analog signal path and converts the analog signal part of the mixed signal into a first digital signal, wherein the analog signal is converted into a digital signal, and after the signal processing module 1011 receives the first digital signal, the signal processing module 1011 triggers the first digital signal based on the signal access rule and generates analog signal trigger information according to the trigger result; after the mixed signal is shunted to the digital signal path, the comparator module 1013 collects the mixed signal, and the digital signal component of the mixed signal is processed by the comparator module 1013, wherein the comparator module 1013 processes based on a preset trigger level and a trigger condition and generates a second digital signal according to the processing result, and after the signal processing module 1011 receives the second digital signal, the signal processing module 1011 performs a trigger operation with the second digital signal and performs a trigger operation on the second digital signal based on a signal access rule to generate digital signal trigger information;
wherein, the signal processing module 1011 obtains the analog signal trigger information and the digital signal trigger information after a signal acquisition cycle is finished, and transmits each trigger information to the signal detection device 102, so that the signal detection device 102 can compare the detection rules of the analog signal trigger information and the digital signal trigger information after acquiring the analog signal trigger information and the digital signal trigger information;
5) comparing the detection rule step 25, when the signal detection device 102 performs detection, the signal detection device 102 collects the set detection rule table, and detects the analog signal trigger information and the digital signal trigger information based on the signal detection rule and format of the detection rule table, wherein after the signal detection device 102 performs timing detection and level value detection on the analog signal trigger information and the digital signal trigger information, the signal detection device 102 can generate a signal comparison result according to the detection result, and the signal comparison result comprises a timing detection result and a level value detection result;
6) and a step 26 of generating a detection report, in which after the signal detection device 102 obtains the signal comparison result, the signal detection device 102 may store the signal comparison result as a detection report file, and the signal detection device 102 may read the detection report file to display the detection rule table, so that a detection person may view the timing detection result and the level value detection result of the detection rule table to determine whether the circuit board 20 to be detected is abnormal.
The invention collects the electronic signals of a plurality of channels of the circuit board to be detected through a plurality of channels, the detecting personnel do not need to measure the circuit in batches, and can automatically trigger the signal waveform through the set signal taking rule and automatically detect the signal triggering result through the set signal detecting rule, therefore, the detecting personnel do not need to manually contrast the detecting specification, all measuring points of the circuit board can be ensured to finish the detection, and the detecting time and the detecting manpower can be greatly shortened.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An analysis system capable of simultaneously detecting a plurality of sets of mixed signals,
comprises a mixed signal logic analyzer device (101) and a signal detection device (102);
the mixed signal logic analyzer device (101) and the signal detection device (102) complete information connection, so that the signal detection device (102) can receive a trigger result, and after the trigger result and a detection rule are compared with each other, a detection report file is generated to allow a detector to judge whether the circuit board to be detected is abnormal; wherein the content of the first and second substances,
the mixed signal logic analyzer device (101) comprises a signal processing module (1011) for simultaneously processing input signals of 8-16 channels; the signal processing module (1011) is connected with a signal input channel (1012), is electrically connected with a plurality of channels through the signal input channel (1012) at the same time, and receives mixed signals from each channel; the signal processing module (1011) transmits the signal triggering information to the signal detection device (102) through the connected information transmission module (1015); a comparator module (1013) is connected between the signal processing module (1011) and the signal input channel (1012), and the high potential and the low potential of the digital signal are judged through the arranged comparator module (1013), and a digital waveform is formed between the high potential and the low potential;
the signal detection device (102) comprises an operation module (1021) for operation, and the function of the operation module (1021) comprises the steps of preparing logic operation, temporarily storing an operation result and storing an execution instruction position; the operation module (1021) is connected with a signal detection module (1022), a detection report module (1023) and a detection database (1024);
the signal detection module (1022) establishes a detection rule table, so that the signal detection module (1022) compares the trigger information of each signal according to the signal detection rule of the detection rule table and generates a signal comparison result;
the detection report module (1023) stores the signal comparison result as a detection report file for an operator to file and forward the detection report file, and judges whether the circuit board to be detected is abnormal;
the detection database (1024) stores signal detection rules and detection rule tables of various circuit boards, the detection rule tables correspond to the signal detection rules, and the detection rule tables comprise timing detection columns, level value detection columns and other detection item columns, and are established and modified according to requirements.
2. The analysis system of claim 1, wherein the analysis system is capable of detecting a plurality of sets of mixed signals simultaneously,
the shunt path connected with the signal processing module (1011) and the signal input channel (1012) comprises an analog signal path and a digital signal path;
the analog signal path converts an analog signal into a digital signal by using an analog signal conversion module (1014) arranged on the analog signal path;
the comparator module (1013) is arranged on a digital signal path;
and the digital signal path transmits the analog signal trigger information and the digital signal trigger information to the signal detection device (102) through the provided information transmission module (1015).
3. The analysis system for simultaneously detecting multiple sets of mixed signals according to claim 2, wherein the analog signal conversion module (1014) is an analog-to-digital converter.
4. The analysis system according to claim 1, wherein the computing module (1021) comprises a central processing unit or a microcontroller.
5. The analysis system of claim 1, wherein the analysis system is capable of detecting a plurality of sets of mixed signals simultaneously,
the signal detection module (1022) performs sequence detection and level value detection; wherein the content of the first and second substances,
the timing detection means detecting whether the phase value of the mixed signal meets the signal detection rule;
the level value detection means whether the logic state and level value of the mixed signal meet the signal detection rule.
6. The system of claim 1, wherein the signal detection device (102) comprises an input module electrically connected to the computing module (1021).
7. The analysis system of claim 1, wherein the analysis system is capable of detecting a plurality of sets of mixed signals simultaneously,
the input signal of detecting the rule table adopts rule and signal detection rule, wherein, the signal is taken the rule and is contained:
detecting a digital signal, wherein the digital signal is in logic states 0 and 1, and the setting value is in the logic state;
the analog signal is detected, the analog level setting value is set by adopting a level value or a level amplitude percentage, wherein the level value setting is mainly applied to the working level of the signal to be detected, each channel is different and is set according to the actual level, the level amplitude percentage is applied to the detection voltage, the height value between the level amplitudes is specified by the amplitude percentage, and the detection time sequence phase is used in the process of long level rising and falling time.
8. The analysis system for detecting multiple sets of mixed signals simultaneously as claimed in claim 1, wherein a multi-channel switch board is connected to the mixed signal logic analysis apparatus (101) to complete information connection, and the mixed signal logic analysis apparatus (101) can collect mixed signals of multiple channels through the multi-channel switch board.
9. The analysis system of claim 1, wherein the analysis system is capable of detecting a plurality of sets of mixed signals simultaneously,
the mixed signal logic analyzing device (101) further comprises a data buffer module;
the data buffer module is connected with the signal processing module (1011) to complete information connection, the data buffer module is used to buffer and store signal data, and the data buffer module is used to buffer and store data to adjust the flow rate of the data stream transmitted through the information transmission module (1015) in the process of increasing the instantaneous amount of the data stream of the input electronic signal, and the data buffer module is used to store the signal data safely in the data buffer module in the process of increasing the continuous amount of the data stream of the input electronic signal, and then the data transmission module (1015) is used to transmit the flow rate; wherein the content of the first and second substances,
the data buffer module is a dynamic random access memory.
10. An analysis method for simultaneously detecting multiple sets of mixed signals according to claim 2, comprising the steps of:
1) a step (21) of setting a detection rule table, wherein a detection person can operate a signal detection device (102) according to a detection specification given by a circuit board (20) to be detected, and newly establish the detection rule table, and input a signal access rule and a signal detection rule in the detection rule table;
2) a step (22) of loading a detection rule table, wherein after a detection person electrically connects the mixed signal logic analysis device (101) to a circuit board (20) to be detected, and after the signal detection device (102) reads the set detection rule table, the signal detection device (102) transmits a signal access rule to the mixed signal logic analysis device (101);
3) after the mixed signal logic analysis device (101) is electrically connected with the signal detection device (102), a detection person can execute a power-on program on the circuit board (20) to be detected, so that the mixed signal logic analysis device (101) can receive a mixed signal of the circuit board (20) to be detected based on a signal access rule, an input channel (1012) of the mixed signal logic analysis device (101) can receive the mixed signal, and the mixed signal can be further divided into an analog signal path and a digital signal path, so that the mixed signal logic analysis device (101) can respectively process signals of different paths;
4) after the mixed signal is shunted to the analog signal path, the analog signal conversion module (1014) collects the mixed signal through the analog signal path and converts the analog signal part of the mixed signal into a first digital signal, wherein the analog signal is converted into the digital signal, the signal processing module (1011) receives the first digital signal, the signal processing module (1011) triggers the first digital signal based on the signal access rule and generates analog signal triggering information according to the triggering result; after the mixed signal is shunted to the digital signal path, the comparator module (1013) collects the mixed signal, and the digital signal component of the mixed signal is processed through the comparator module (1013), wherein the comparator module (1013) processes based on a preset trigger level and a trigger condition and generates a second digital signal according to the processing result, and after the signal processing module (1011) receives the second digital signal, the signal processing module (1011) performs a trigger operation on the second digital signal and performs a trigger operation on the second digital signal based on a signal access rule to generate digital signal trigger information;
wherein, the signal processing module (1011) obtains the analog signal trigger information and the digital signal trigger information after a signal acquisition period is finished, and transmits each trigger information to the signal detection device (102), so that the signal detection device (102) can compare the detection rules of the analog signal trigger information and the digital signal trigger information after acquiring the analog signal trigger information and the digital signal trigger information;
5) comparing the detection rule step (25), wherein when the signal detection device (102) detects, the signal detection device (102) collects a detection rule table which is set to be finished, and detects the analog signal trigger information and the digital signal trigger information based on the signal detection rule and the format of the detection rule table, wherein after the signal detection device (102) finishes the time sequence detection and the level value detection of the analog signal trigger information and the digital signal trigger information, the signal detection device (102) can generate a signal comparison result according to the detection result, and the signal comparison result comprises a time sequence detection result and a level value detection result;
6) and a step (26) of generating a detection report, wherein after the signal detection device (102) obtains the signal comparison result, the signal detection device (102) can store the signal comparison result as a detection report file, and the signal detection device (102) can read the detection report file to display a detection rule table, so that a detection person can inspect the time sequence detection result and the level value detection result of the detection rule table to confirm whether the circuit board (20) to be detected is abnormal.
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