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Digital storage oscilloscope intelligent triggering method and system

An intelligent trigger system and digital storage technology, applied in the direction of digital variable display, etc., can solve the problems of complex characteristics of high-speed signals and cannot meet the needs of testing, etc., to achieve enhanced flexibility and reconfigurability, low cost, and high cost performance Effect

Active Publication Date: 2008-02-20
UNI TREND TECH (CHINA) CO LTD
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AI Technical Summary

Problems solved by technology

However, the characteristics of high-speed signals are becoming more and more complex. In some special applications, engineers need to capture a specific waveform mixed in complex signals. The above-mentioned single trigger method can no longer meet the needs of testing. System design puts higher demands on

Method used

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  • Digital storage oscilloscope intelligent triggering method and system
  • Digital storage oscilloscope intelligent triggering method and system

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Embodiment Construction

[0028] With reference to Fig. 1, the intelligent trigger system of digital storage oscilloscope of the present invention comprises: AD sampling and sample value storage module, general trigger module, programmable trigger module, multiplexer, trigger holdoff control module, acquisition control module and central processing module and other modules, among them,

[0029] 1) The AD sampling and sample value storage module is mainly composed of a high-speed 8-bit analog-to-digital converter (ADC), a high-speed first-in-first-out memory (FIFO), a sampling control module supplemented by corresponding logic control circuits, and is responsible for completing the processing of analog signals. Acquisition and storage function of effective waveform data.

[0030] 2) The function realized by the general trigger module is to complete most of the trigger functions of the traditional digital storage oscilloscope, namely edge trigger, video trigger, pulse width trigger, slope trigger and so ...

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Abstract

The utility model discloses an intelligent trigger method and system of a digital storage oscilloscope (DSO), belonging to the DSO field. The method comprises a plurality of trigger templates which are edited in self-defined way; each trigger template stores self-defined trigger data; trigger sensitivity and trigger condition are set for each trigger template; the logical relation between the trigger templates is set up; the tested signal data collected by the DSO is compared with the trigger data stored in each trigger template according to the logical relation between the trigger templates and according to the logical relation of the trigger templates; if the two are in the scope of trigger sensitivity and meet trigger condition, a trigger enable signal is produced. With the utility model, the users can set the trigger templates freely, dynamically regulate trigger sensitivity, and trigger all complicated waves.

Description

technical field [0001] The invention belongs to the field of digital storage oscilloscopes (DSO), and relates to an intelligent trigger method and system for digital storage oscilloscopes. Background technique [0002] Digital storage oscilloscope (DSO) has rich trigger methods, strong signal processing capability, can store and reproduce waveforms repeatedly for a long time, can observe various types of signals, and is easy to integrate with digital systems such as computers. In today's signal measurement, DSO has been widely used. [0003] Triggering plays a very important role in DSO. The so-called trigger technology is that in order to effectively observe the measured signal, by setting some trigger conditions, the measured signal is continuously compared with the trigger condition, and only when the measured signal meets the trigger condition, a data acquisition is started, so that the user Observe the waveform that meets the trigger condition on the screen. With the...

Claims

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Application Information

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IPC IPC(8): G01R13/02
Inventor 王厚军叶芃邱渡裕曾浩张沁川
Owner UNI TREND TECH (CHINA) CO LTD
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