CN-116300376-B - Signal interval measurement module and measurement equipment

Abstract

The embodiment of the application provides a signal interval measurement module and measurement equipment, and belongs to the technical field of signal processing. The signal interval measurement module comprises a time measurement module, a processor module, the time measurement module and a processor module, wherein the time measurement module is electrically connected with the processor module, the time measurement module is further electrically connected with at least two signal sources, the time measurement module is used for recording a first reference clock index according to a reference clock period and recording the first pulse number when a first pulse sent by a first signal source of the at least two signal sources arrives, recording a second reference clock index according to the reference clock period and recording the second pulse number when a second pulse sent by a second signal source of the at least two signal sources arrives, and the processor module is used for calculating the pulse time interval between the first signal source and the second signal source according to the first reference clock index, the first pulse number, the second reference clock index, the second pulse number and a standard clock period. The application can improve the measurement efficiency.

Inventors

• XIE SIYU

Assignees

• 西安闻泰信息技术有限公司

Dates

Publication Date

20260512

Application Date

20230227

Claims (9)

1. 1. The signal interval measurement module is characterized by comprising a time measurement module and a processor module, wherein the time measurement module is electrically connected with the processor module; The time measurement module is further electrically connected with at least two signal sources, and is used for recording a first reference clock index according to a reference clock period when a first pulse sent by a first signal source of the at least two signal sources arrives, and recording a first pulse number, wherein the first pulse number is the number of standard clock periods from the first reference clock index to the first pulse recorded according to a standard clock period, and the standard clock period is smaller than the reference clock period; the time measurement module is used for recording a second reference clock index according to the reference clock period when a second pulse sent by a second signal source in the at least two signal sources arrives, and recording a second pulse number, wherein the second pulse number is the number of standard clock periods from the second reference clock index to the second pulse recorded according to the standard clock period; The processor module is configured to calculate a pulse time interval between the first signal source and the second signal source according to the first reference clock index, the first pulse number, the second reference clock index, the second pulse number and the standard clock period; The time measurement module is also externally connected with a crystal oscillator circuit; the time measurement module is also used for obtaining the crystal oscillator size of the crystal oscillator circuit, determining a frequency division coefficient according to the crystal oscillator size, and determining the standard clock period according to the reference clock period and the frequency division coefficient.
2. 2. The signal interval measurement module of claim 1, wherein the processor module is further configured to calculate a first transmission time of the first pulse relative to the reference clock period based on the first reference clock index, the first number of pulses, and the standard clock period; The processor module is further configured to calculate a second transmission time of the second pulse relative to the reference clock period according to the second reference clock index, the second pulse number, and the standard clock period; the processor module is further configured to calculate a pulse time interval between the first signal source and the second signal source according to the first transmission time and the second transmission time.
3. 3. The signal interval measurement module of claim 1, further comprising a functional control module electrically connected to the processor module; the function control module is used for sending a signal source identifier to be detected to the processor module; the processor module is also used for receiving the signal source identification to be detected and controlling the time measurement module to be conducted with each signal source corresponding to the signal source identification to be detected.
4. 4. A signal interval measurement module according to claim 3, wherein the functional control module comprises a selection control for each signal source; the function control module is further configured to trigger the selection control of each signal source, and obtain an identifier corresponding to the selected signal source as the identifier of the signal source to be detected.
5. 5. The signal interval measurement module of claim 3, wherein the function control module further comprises a number of times setting control; The function control module is used for receiving the calculated times G set by the times setting control and sending the calculated times G to the processor module, wherein G is a positive integer; the processor module is further configured to control the time measurement module to obtain measurement data for G times, calculate a pulse time interval between the first signal source and the second signal source for G times, and obtain an average value according to the pulse time interval between the first signal source and the second signal source for G times.
6. 6. The signal interval measurement module of claim 1, further comprising a display module, wherein the display module is electrically connected to the processor module; The display module is used for displaying the data sent to the processor module by the time measurement module and displaying the pulse time interval between the first signal source and the second signal source.
7. 7. The signal interval measurement module of claim 1, wherein the processor module is further configured to receive a circuit switching signal, the circuit switching signal configured to switch between different crystal oscillator circuits; the processor module is also used for controlling the time measurement module to be electrically connected with the switched crystal oscillator circuit according to the circuit switching signal.
8. 8. The signal interval measurement module of any one of claims 1 to 7, wherein the power supply of the time measurement module is a dc power supply.
9. 9. A measuring device comprising at least one signal interval measuring module according to any one of claims 1 to 8.

Description

Signal interval measurement module and measurement equipment Technical Field The present application relates to the field of signal processing technologies, and in particular, to a signal interval measurement module and a measurement device. Background With the rapid development of science and technology, various circuits have been applied to electronic devices, wherein a plurality of different signal sources may exist in the same circuit. For example, when two capacitors are present in a circuit, the two capacitors can be considered as two signal sources, and the two capacitors can operate in different on states. If the pulse time interval between the two sources is to be measured, each capacitance is often measured separately. For example, when two capacitors are in discharge operation, the time of the pulse emitted by each of the two capacitors is measured, the obtained two time are subtracted to obtain the time interval between the pulses emitted by each of the two capacitors, and in the measurement process, the frequency adopted for measurement is usually fixed, and only the time when the pulse is measured is recorded, so that the accuracy of the measured time interval is low. Disclosure of Invention The embodiment of the application provides a signal interval measurement module and measurement equipment, which can improve the accuracy of measuring pulse time intervals among different signal sources by the signal interval measurement module. In one aspect, the embodiment of the application provides a signal interval measurement module, which comprises a time measurement module and a processor module, wherein the time measurement module is electrically connected with the processor module; The time measurement module is further electrically connected with at least two signal sources, and is used for recording a first reference clock index according to a reference clock period when a first pulse sent by a first signal source of the at least two signal sources arrives, and recording a first pulse number, wherein the first pulse number is the number of standard clock periods from the first reference clock index to the first pulse recorded according to a standard clock period, and the standard clock period is smaller than the reference clock period; the time measurement module is used for recording a second reference clock index according to the reference clock period when a second pulse sent by a second signal source in the at least two signal sources arrives, and recording a second pulse number, wherein the second pulse number is the number of standard clock periods from the second reference clock index to the second pulse recorded according to the standard clock period; the processor module is configured to calculate a pulse time interval between the first signal source and the second signal source according to the first reference clock index, the first pulse number, the second reference clock index, the second pulse number, and the standard clock period. As an optional implementation manner of the embodiment of the present application, the processor module is further configured to calculate, according to the first reference clock index, the first pulse number and the standard clock period, a first transmission time of the first pulse relative to the reference clock period; The processor module is further configured to calculate a second transmission time of the second pulse relative to the reference clock period according to the second reference clock index, the second pulse number, and the standard clock period; the processor module is further configured to calculate a pulse time interval between the first signal source and the second signal source according to the first transmission time and the second transmission time. As an optional implementation manner of the embodiment of the present application, the signal interval measurement module further includes a function control module, where the function control module is electrically connected to the processor module; the function control module is used for sending a signal source identifier to be detected to the processor module; the processor module is also used for receiving the signal source identification to be detected and controlling the time measurement module to be conducted with each signal source corresponding to the signal source identification to be detected. As an optional implementation manner of the embodiment of the present application, the function control module includes selection controls of various signal sources; the function control module is further configured to trigger the selection control of each signal source, and obtain an identifier corresponding to the selected signal source as the identifier of the signal source to be detected. As an optional implementation manner of the embodiment of the present application, the function control module further includes a number setting control; the function control module is used for re