Multistage trigger circuit and storage depth adjustable oscilloscope

Abstract

The utility model provides a multistage trigger circuit and storage depth adjustable oscilloscope, including regulation and control module, storage module, measurement module, search module and display module, the storage module includes a plurality of submodule, regulation and control module and storage module, measurement module, search module and display module are connected, regulation and control module includes a plurality of storage depth adjustment option. The utility model has the advantages of: utilize regulation and control module cooperation multistage trigger circuit, control the different submodule of storage module and work. When analysing fast change signal, can select deeper storage depth to capture more signal details, and when monitoring long time stable signal, then can select shallower storage depth to save storage space and processing time. Oscilloscope can switch according to the specific situation of input signal storage depth, and the information of input can be better stored, can adapt to more signals, and the applicability is stronger.

Description

Technical Field

[0001] This utility model relates to the field of oscilloscope technology, and in particular to a multi-level trigger circuit and an oscilloscope with adjustable storage depth. Background Technology

[0002] An oscilloscope is an instrument used to measure the shape of alternating current or pulsed current waves. It consists of a vacuum tube amplifier, a scanning oscillator, a cathode ray tube, and other components. Besides observing the waveform of current, it can also measure frequency, voltage intensity, and other parameters. Memory depth is an important parameter of an oscilloscope, affecting its capture time and waveform detail.

[0003] In existing technologies, oscilloscopes generally operate with a fixed storage depth. However, in practical applications, input signals vary in length. A deeper storage depth can capture signals of longer durations, but this may increase the oscilloscope's processing time and storage requirements; conversely, a shallower storage depth can reduce processing time and storage requirements, but may result in the loss of some waveform details. Therefore, a multi-stage trigger circuit and an oscilloscope with adjustable storage depth are proposed as improvements. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this invention is to propose a multi-level trigger circuit and a storage depth adjustable oscilloscope to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides an oscilloscope with adjustable storage depth, including a control module, a storage module, a measurement module, a search module, and a display module. The storage module includes several sub-modules. The control module is connected to the storage module, the measurement module, the search module, and the display module. The control module includes multiple storage depth adjustment options to control the storage operation using the sub-modules of a specific storage module. The measurement module is connected to the storage module and is used to process the sampled data stored in the storage module. The search module is connected to the measurement module and is used to search for measurement parameters. The display module is connected to the storage module, the measurement module, and the search module and is used to display the stored raw waveform data, the measurement parameter data, and the searched waveform data.

[0007] The above technical solution employs the following: The control module manages the oscilloscope's operation and features multiple memory depth adjustment options, allowing users to select different memory depths to adapt the oscilloscope to various signals. The storage module stores sampled data and comprises several sub-modules. Depending on the duration of the input signal, different storage depths can be used for storage, ensuring better retention of the input information.

[0008] Preferably, in any of the above schemes, the storage module includes a first sub-module, a second sub-module, a third sub-module, ..., an nth sub-module, and the first sub-module, the second sub-module, the third sub-module, ..., the nth sub-module are all connected to the total FPGA unit.

[0009] The above technical solution employs a storage module comprising several sub-modules, which offers more options during storage operations. Combined with a control module containing several storage depth adjustment options, this allows the oscilloscope to adapt to a wider range of input signals, significantly improving its versatility. The main FPGA unit controls the output of data stored in each sub-module.

[0010] Preferably, in any of the above schemes, the first submodule includes a storage unit and a branch FPGA unit connected to the storage unit, the second submodule includes two storage units and two branch FPGA units, the third submodule includes three storage units and three branch FPGA units, and the nth submodule includes n storage units and n branch FPGA units.

[0011] The above technical solution involves setting a different number of storage units in each submodule. Assuming the storage capacity of each storage unit is x, the storage capacities of the first, second, third, and nth submodules are 1x, 2x, 3x, and nx, respectively. The inconsistent storage capacities between modules allow the oscilloscope to utilize modules with different storage depths based on the input information. A separate branch FPGA unit is set within each submodule, controlling the data transmission of the connected storage units.

[0012] Preferably, in any of the above schemes, the storage units within the second submodule, the third submodule, ..., the nth submodule are cascaded, and the original waveform sampling data is transmitted in the order of the storage units.

[0013] Preferably, in any of the above schemes, the storage unit is composed of multiple DDR3 dynamic memory units in parallel, which transmit data with the branch FPGA unit via a bus. The branch FPGA unit transmits the input raw sampled data to the storage unit for storage.

[0014] The above technical solution involves cascading several storage units within each submodule, allowing the raw waveform acquisition data to be transferred sequentially between the storage units. When processing the same unit of data, multiple FPGA units can process the data simultaneously, thereby reducing the total data processing time and increasing the access rate.

[0015] A multi-level triggering circuit is provided, which is located between the control module and the storage module. The multi-level triggering circuit contains several triggers, which are connected in series.

[0016] Preferably, in any of the above schemes, the number of triggers is consistent with the number of sub-modules in the storage module and is controlled in a one-to-one correspondence with several sub-modules, and when the triggers are triggered, they control the corresponding sub-modules to perform storage work.

[0017] The above technical solution utilizes a multi-stage trigger circuit to control a storage module containing multiple sub-modules, enabling the oscilloscope to store data using different modules when faced with different input signals. When an input signal meets the trigger condition of a trigger, that trigger changes its output state and passes this state to the next trigger. In this way, the input signal is processed by multiple triggers, ultimately resulting in a multi-stage response. Specifically, each trigger in the multi-stage trigger circuit has one input terminal and one output terminal. The input terminal receives the output signal from the previous stage trigger or an external input signal, while the output terminal provides the processed signal to the next stage trigger or external circuit. When the input signal meets the trigger condition, the trigger changes its internal state and passes the signal to the next stage through its output terminal.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. This multi-stage trigger circuit and adjustable storage depth oscilloscope, through the inclusion of a storage module with several sub-modules, a control module with multiple storage depth adjustment options, a measurement module, a search module, and a display module, utilizes the control module in conjunction with the multi-stage trigger circuit to control the operation of different sub-modules of the storage module. When analyzing rapidly changing signals, a deeper storage depth can be selected to capture more signal details; while when monitoring long-term stable signals, a shallower storage depth can be selected to save storage space and processing time. The oscilloscope can switch the storage depth according to the specific characteristics of the input signal, allowing for better storage of input information, adaptability to more signals, and greater applicability.

[0020] 2. This multi-level trigger circuit and adjustable storage depth oscilloscope uses a different number of storage units in each submodule. The varying storage capacity across modules allows the oscilloscope to utilize modules with different storage depths based on the input information. Within each submodule, several storage units are cascaded, and the original waveform acquisition data is sequentially transferred between them. When processing the same unit of data, multiple FPGA units can process it simultaneously, thus reducing the total data processing time and increasing the access speed.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a block diagram of the storage depth adjustable oscilloscope of this utility model;

[0024] Figure 2 This is a structural block diagram of the storage module of this utility model;

[0025] Figure 3 This is a structural block diagram of the multi-stage trigger circuit of this utility model. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figures 1-3As shown, this utility model discloses an oscilloscope with adjustable storage depth, comprising a control module, a storage module, a measurement module, a search module, and a display module. The storage module includes several sub-modules. The control module is connected to the storage module, measurement module, search module, and display module, and includes multiple storage depth adjustment options to control the storage operation using specific sub-modules of the storage module. The measurement module is connected to the storage module and is used to process the sampled data stored in the storage module. The search module is connected to the measurement module and is used to search for measurement parameters. The display module is connected to the storage module, measurement module, and search module and is used to display the stored raw waveform data, measurement parameter data, and searched waveform data.

[0029] Example 1: The storage module includes a first submodule, a second submodule, a third submodule, and so on up to the nth submodule. All submodules are connected to the main FPGA unit. The control module is used to control the oscilloscope's operation and features multiple storage depth adjustment options, allowing users to select different storage depths to adapt the oscilloscope to different signals. The storage module stores sampled data and comprises several submodules. Different storage depths can be used to store the input signal based on its duration, ensuring better storage of the input information.

[0030] The storage module, comprising several sub-modules, offers more options during storage operations. Combined with a control module offering several storage depth adjustment options, this allows the oscilloscope to adapt to a wider range of input signals, significantly improving its versatility. The main FPGA unit controls the output of data stored in each sub-module. The first sub-module includes one storage unit and a branch FPGA unit connected to it; the second sub-module includes two storage units and two branch FPGA units; the third sub-module includes three storage units and three branch FPGA units; and the nth sub-module includes n storage units and n branch FPGA units. Different numbers of storage units are set in each sub-module. Assuming the storage capacity of each storage unit is x, the storage capacities of the first, second, third, and nth sub-modules are 1x, 2x, 3x, and nx, respectively. The inconsistent storage capacities between modules allow the oscilloscope to utilize modules with different storage depths based on the input information. Individual branch FPGA units within each sub-module control the data transmission of the connected storage units.

[0031] Example 2: The storage units within the second, third, ..., nth submodules are cascaded, and the original waveform sampling data is transmitted sequentially according to the storage unit order. Each storage unit consists of multiple parallel DDR3 dynamic memory units, which transmit data to the supporting FPGA unit via a bus. The supporting FPGA unit transmits the input original sampling data to the storage unit for storage. Within each submodule, several storage units are cascaded, and the original waveform acquisition data is transmitted sequentially between them. When processing the same unit of data, multiple FPGA units can process the data simultaneously, thereby reducing the total data processing time and increasing the access rate.

[0032] A multi-level trigger circuit is set between the control module and the storage module. The multi-level trigger circuit contains several triggers, which are connected in series.

[0033] Example 3: The number of flip-flops corresponds to the number of sub-modules within the storage module, and each flip-flop is controlled in a one-to-one correspondence with a specific sub-module. When triggered, each flip-flop controls its corresponding sub-module to perform storage operations. Through a multi-stage trigger circuit, the storage module containing multiple sub-modules is controlled, allowing the oscilloscope to utilize different storage modules for different input signals. When an input signal meets the trigger condition of a flip-flop, the flip-flop changes its output state and passes this state to the next flip-flop. Thus, after processing by multiple flip-flops, the input signal ultimately yields a multi-stage response. Specifically, each flip-flop in the multi-stage trigger circuit has an input terminal and an output terminal. The input terminal receives the output signal from the previous flip-flop or an external input signal, while the output terminal provides the processed signal to the next flip-flop or external circuit. When the input signal meets the trigger condition of the flip-flop, the flip-flop changes its internal state and passes the signal to the next stage through its output terminal.

[0034] The working principle of this utility model is as follows:

[0035] S1. Based on the different input signals, the multiple storage depth adjustment options of the control module are used in conjunction with the multiple triggers of the multi-level trigger circuit to control the different sub-modules of the storage module to work.

[0036] S2. When analyzing rapidly changing signals, choose a deeper storage depth to capture more signal details;

[0037] S3. When monitoring signals that are stable for a long time, choose a shallower storage depth to save storage space and processing time.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] 1. This multi-stage trigger circuit and adjustable storage depth oscilloscope, through the inclusion of a storage module with several sub-modules, a control module with multiple storage depth adjustment options, a measurement module, a search module, and a display module, utilizes the control module in conjunction with the multi-stage trigger circuit to control the operation of different sub-modules of the storage module. When analyzing rapidly changing signals, a deeper storage depth can be selected to capture more signal details; while when monitoring long-term stable signals, a shallower storage depth can be selected to save storage space and processing time. The oscilloscope can switch the storage depth according to the specific characteristics of the input signal, allowing for better storage of input information, adaptability to more signals, and greater applicability.

[0040] 2. This multi-level trigger circuit and adjustable storage depth oscilloscope uses a different number of storage units in each submodule. The varying storage capacity across modules allows the oscilloscope to utilize modules with different storage depths based on the input information. Within each submodule, several storage units are cascaded, and the original waveform acquisition data is sequentially transferred between them. When processing the same unit of data, multiple FPGA units can process it simultaneously, thus reducing the total data processing time and increasing the access speed.

Claims

1. A storage depth adjustable oscilloscope, comprising a control module, a storage module, a measurement module, a search module, and a display module; characterized in that, The storage module includes several sub-modules. The control module is connected to the storage module, measurement module, search module, and display module. The control module includes multiple storage depth adjustment options to control the storage operation using the sub-modules of a specific storage module. The measurement module is connected to the storage module and is used to process the sampled data stored in the storage module; The search module is connected to the measurement module and is used to search for measurement parameters. The display module is connected to the storage module, measurement module, and search module, and is used to display the stored raw waveform data, measurement parameter data, and searched waveform data.

2. The storage depth adjustable oscilloscope as described in claim 1, characterized in that: The storage module includes a first submodule, a second submodule, a third submodule, ..., an nth submodule, all of which are connected to the main FPGA unit.

3. The storage depth adjustable oscilloscope as described in claim 2, characterized in that: The first submodule includes a storage unit and a branch FPGA unit connected to the storage unit; the second submodule includes two storage units and two branch FPGA units; the third submodule includes three storage units and three branch FPGA units; and the nth submodule includes n storage units and n branch FPGA units.

4. The storage depth adjustable oscilloscope as described in claim 3, characterized in that: The storage units within the second submodule, the third submodule, and so on up to the nth submodule are cascaded together, and the original waveform sampling data is transmitted in the order of the storage units.

5. The storage depth adjustable oscilloscope as described in claim 4, characterized in that: The storage unit is composed of multiple parallel DDR3 dynamic memory units, which transmit data with the branch FPGA unit via a bus. The branch FPGA unit transmits the input raw sampled data to the storage unit for storage.

6. A multi-stage trigger circuit, disposed within the storage depth adjustable oscilloscope according to any one of claims 1 to 5, characterized in that: The multi-level triggering circuit is located between the control module and the storage module. The multi-level triggering circuit contains several triggers, which are connected in series.

7. The multi-stage trigger circuit as described in claim 6, characterized in that: The number of triggers is consistent with the number of sub-modules in the storage module and is controlled in a one-to-one correspondence with several sub-modules. When the triggers are triggered, they control the corresponding sub-modules to perform storage operations.

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