Data synchronization acquisition method for multiple devices

Abstract

This application proposes a method for synchronous data acquisition from multiple devices. This method uses a tapping method to generate a synchronization marker signal. This method is particularly useful for devices that can generate instantaneous signals through vibration, such as acceleration sensors, sound sensors, vibration sensors, and myoelectric sensors. The generated synchronization marker signal is used to synchronize multiple devices. This method is simple to implement and highly accurate.

Description

Technical Field

[0001] The present application relates to data acquisition technology, and in particular to a method for synchronously acquiring data between multiple devices. Background Art

[0002] When multiple devices are collecting data synchronously, some use a simultaneous activation method, activating the acquisition function of multiple devices simultaneously to achieve synchronization; others use a time-corresponding synchronization method, using the device's built-in time scale as a synchronization marker to synchronize the acquisition of different devices. Both methods have shortcomings. For the simultaneous activation method, precisely activating all devices simultaneously is difficult to achieve. Customized accessories are also required to link the activation mechanisms of multiple devices to achieve simultaneous triggering, but this process is cumbersome and complex. For synchronization methods that use time scales as markers, the built-in time scales of most devices can only achieve second-level accuracy, which is often insufficient for data collection and subsequent analysis. Therefore, it is crucial to synchronize the acquisition of data from different devices, and to have a simple yet accurate synchronization method. Summary of the Invention

[0003] In view of the above problems, the present application aims to propose a method for synchronous data collection of multiple devices, which can conveniently achieve synchronization of collected data of multiple devices.

[0004] The present application proposes a method for synchronously collecting data from multiple devices, wherein the multiple devices are all devices capable of instantaneously sensing instantaneous vibration signals, and the multiple devices are two devices; turning on the two devices;

[0005] The two devices are knocked against each other to generate a synchronization mark signal; the collected data of the two devices are synchronized through the synchronization mark signal.

[0006] The present application proposes a method for synchronous data collection for multiple devices, wherein the multiple devices are all devices capable of instantaneously sensing instantaneous vibration signals, and the multiple devices are at least three devices; the multiple devices are divided into multiple cross pairs; each cross pair includes two devices; for each cross pair, at least one device is shared with other cross pairs, and the device is a shared device; the multiple devices are turned on;

[0007] For each cross pair, the two devices in the cross pair tap each other to generate a synchronization mark signal of the cross pair; the collected data of all devices in the cross pair are synchronized through the synchronization mark signal;

[0008] For two cross pairs with a common device, the collected data of all devices in the two cross pairs are synchronized through the collected data of the common device as an intermediary.

[0009] Preferably, the device includes an acceleration sensing device, a sound sensing device, a vibration sensing device, or an electromyography sensing device.

[0010] Preferably, the synchronization mark signal is a continuous multiple-tap signal.

[0011] Preferably, the synchronization mark signal of each cross pair is different from the synchronization mark signals of cross pairs that have common equipment with the cross pair.

[0012] The method of the present application can achieve pairwise alignment of signals by synchronizing the marking signals. The method is simple and easy to implement, and has high accuracy, which can reach the millisecond level. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the implementation of synchronous acquisition for different devices;

[0014] Figure 2 This is a schematic diagram of data synchronization between different devices. DETAILED DESCRIPTION

[0015] The data synchronization acquisition method for multiple devices of the present application is described in detail below with reference to the accompanying drawings.

[0016] Two different devices, such as a condenser microphone and a piezoelectric microphone, need to achieve synchronous acquisition. The specific method is to turn on both devices normally, and then tap both devices to generate a synchronization marker signal. In order to avoid the synchronization marker signal being submerged in the signal during the normal acquisition process of the device, multiple taps are used to achieve a synchronization marker signal that is easy to distinguish from ordinary signals. Figure 1 As shown, the sensor parts of device 1 and device 2 are continuously tapped to generate a synchronization mark signal, and the synchronization collection of the two devices is achieved through the synchronization mark signal.

[0017] After the device obtains the synchronization marker signal, it identifies the synchronization marker signal through the recognition algorithm and performs data synchronization based on the identified synchronization marker signal position. Figure 2 shown.

[0018] Synchronizing multiple devices can be expanded using the two-device synchronization method. By tapping two devices, each generates a synchronization marker signal. Finally, the synchronization marker signals generated by multiple devices are identified and aligned using a shared device, achieving synchronized acquisition across multiple devices. Two devices can form a cross pair; tapping each pair generates a synchronization marker signal.

[0019] The present invention provides a method for synchronous data collection from multiple devices. It uses a tapping method to generate a synchronization marker signal. This method is particularly useful for devices that can generate instantaneous signals through vibration, such as acceleration sensors, sound sensors, vibration sensors, and myoelectric sensors. The generated synchronization marker signal is used to synchronize multiple devices. This method is simple to implement and offers high accuracy, reaching milliseconds.

[0020] Unless otherwise defined, all technical and / or scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which the invention relates. The materials, methods, and examples mentioned in this application are illustrative only and not restrictive.

[0021] Although the present invention has been described in conjunction with specific embodiments, those skilled in the art may make appropriate substitutions, modifications and changes within the scope of the invention of this application, and such substitutions, modifications and changes shall still fall within the scope of protection of this application.

Claims

1. A method for synchronously collecting data from multiple devices, wherein the multiple devices are all devices capable of instantaneously sensing instantaneous vibration signals, and the multiple devices are at least three devices; the multiple devices are divided into multiple cross pairs; each cross pair includes two devices; in each cross pair, at least one device is shared with other cross pairs, and the device is a shared device; and the multiple devices are turned on; For each cross pair, the two shared devices in the cross pair tap each other to generate a synchronization mark signal of the cross pair; the collected data of all devices in the cross pair are synchronized through the synchronization mark signal; For two cross-pairs with a shared device, the collected data of all devices in the two cross-pairs are synchronized through the collected data of the shared device as an intermediary; The synchronization mark signal of each cross pair is different from the synchronization mark signals of the cross pairs that have common equipment with the cross pair.

2. The method for synchronous data collection of multiple devices according to claim 1, wherein: The device includes an acceleration sensing device, a sound sensing device, a vibration sensing device, or an electromyography sensing device.

3. The method for synchronous data collection of multiple devices according to claim 1, wherein: The synchronization mark signal is a continuous multiple-tap signal.

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