CN112037494A - Wireless vibration data acquisition device - Google Patents

Wireless vibration data acquisition device Download PDF

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CN112037494A
CN112037494A CN202010778251.8A CN202010778251A CN112037494A CN 112037494 A CN112037494 A CN 112037494A CN 202010778251 A CN202010778251 A CN 202010778251A CN 112037494 A CN112037494 A CN 112037494A
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data
wireless
vibration
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vibration data
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樊玉明
田寅
唐海川
龚明
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CRRC Industry Institute Co Ltd
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    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
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Abstract

本发明实施例提供一种无线振动数据采集装置,能够实现振动数据的可靠稳定采集,可用性高。装置包括:振动传感器、数据处理器、无线网络接口、数据缓存以及电源;所述数据处理器分别连接所述振动传感器、无线网络接口、数据缓存以及电源;其中,所述振动传感器用于采集振动数据,所述数据处理器设置有多种与所述数据处理器、所述振动传感器以及所述无线网络接口的工作状态相关联的功耗模式,所述数据处理器用于根据当前的功耗设定需求选择对应的功耗模式。

Figure 202010778251

The embodiment of the present invention provides a wireless vibration data collection device, which can realize reliable and stable collection of vibration data and has high usability. The device includes: a vibration sensor, a data processor, a wireless network interface, a data cache and a power supply; the data processor is respectively connected to the vibration sensor, the wireless network interface, the data cache and the power supply; wherein the vibration sensor is used for collecting vibration data, the data processor is provided with a variety of power consumption modes associated with the working states of the data processor, the vibration sensor and the wireless network interface, the data processor is configured to set the power consumption according to the current power consumption Select the corresponding power consumption mode according to the specific requirements.

Figure 202010778251

Description

一种无线振动数据采集装置A wireless vibration data acquisition device

技术领域technical field

本发明涉及数据采集技术领域,尤其涉及一种无线振动数据采集装置。The present invention relates to the technical field of data collection, in particular to a wireless vibration data collection device.

背景技术Background technique

机械振动时工程技术和日常生活中常见的物理现象。振动具有有害的一面,如破坏机器的正常工作、缩短机器的使用寿命、产生噪声等;振动也有可利用的一面,如可以进行振动输送、振动夯实、振动破碎、振动时效和振动加工等。为了兴利除弊,必须对振动现象进行测量和研究,比如基于采集到的振动数据进行研究等。Mechanical vibration is a common physical phenomenon in engineering technology and daily life. Vibration has a harmful side, such as destroying the normal work of the machine, shortening the service life of the machine, generating noise, etc.; vibration also has a usable side, such as vibration conveying, vibration compaction, vibration crushing, vibration aging and vibration processing. In order to improve the advantages and eliminate the disadvantages, it is necessary to measure and study the vibration phenomenon, such as research based on the collected vibration data.

现有的振动数据采集装置通常基于有线传输,无线的产品体积大、工作模式单一、数据精度低、吞吐量小、数据稳定性差以及需要经常性更换电池,从而振动数据采集的稳定性和可用性低。Existing vibration data acquisition devices are usually based on wired transmission, and wireless products have large volume, single working mode, low data accuracy, low throughput, poor data stability, and frequent battery replacement, so the stability and availability of vibration data acquisition are low. .

发明内容SUMMARY OF THE INVENTION

本发明实施例提供一种无线振动数据采集装置,用以解决现有技术中无线网络中断导致的数据缺失的缺陷,实现振动数据的可靠稳定采集,可用性高。The embodiment of the present invention provides a wireless vibration data collection device, which is used to solve the defect of data loss caused by the interruption of the wireless network in the prior art, realize reliable and stable collection of vibration data, and has high usability.

本发明实施例提供一种无线振动数据采集装置,包括:振动传感器、数据处理器、无线网络接口、数据缓存以及电源;An embodiment of the present invention provides a wireless vibration data collection device, including: a vibration sensor, a data processor, a wireless network interface, a data cache, and a power supply;

所述数据处理器分别连接所述振动传感器、无线网络接口、数据缓存以及电源;The data processor is respectively connected to the vibration sensor, the wireless network interface, the data cache and the power supply;

其中,所述振动传感器用于采集振动数据,所述数据处理器设置有多种与所述数据处理器、所述振动传感器以及所述无线网络接口的工作状态相关联的功耗模式,所述数据处理器用于根据当前的功耗设定需求选择对应的功耗模式。Wherein, the vibration sensor is used to collect vibration data, the data processor is provided with a variety of power consumption modes associated with the working states of the data processor, the vibration sensor and the wireless network interface, the The data processor is used to select a corresponding power consumption mode according to the current power consumption setting requirement.

根据本发明一个实施例的无线振动数据采集装置,所述功耗模式包括实时模式、定时模式以及沉睡模式。According to the wireless vibration data acquisition device according to an embodiment of the present invention, the power consumption mode includes a real-time mode, a timing mode, and a sleep mode.

根据本发明一个实施例的无线振动数据采集装置,所述实时模式包括:按照设定规则持续采集、存储及上报数据,以及与服务器长连接,直至低电保护关机或者配置切换。According to the wireless vibration data collection device according to an embodiment of the present invention, the real-time mode includes: continuously collecting, storing and reporting data according to set rules, and permanently connecting to the server until low-power protection shutdown or configuration switching.

根据本发明一个实施例的无线振动数据采集装置,所述定时模式包括第一定时模式和第二定时模式,所述第一定时模式包括:无任务期间休眠,休眠时支持网络唤醒、定时唤醒以及事件唤醒,唤醒后按照设定规则完成采集任务,之后再次进入休眠;所述第二定时模式包括:无任务期间休眠,休眠时支持定时唤醒以及事件唤醒,唤醒后按照所述设定规则完成采集任务,之后再次进入休眠。According to the wireless vibration data collection device according to an embodiment of the present invention, the timing mode includes a first timing mode and a second timing mode, and the first timing mode includes: sleeping during no task, supporting network wake-up, timing wake-up and Event wake-up, after waking up, complete the collection task according to the set rules, and then go to sleep again; the second timing mode includes: sleep during no task, support timing wake-up and event wake-up during sleep, and complete the collection according to the set rules after waking up task, and then go to sleep again.

根据本发明一个实施例的无线振动数据采集装置,所述第一定时模式和所述第二定时模式支持控制功耗模式在待机和采集之间切换。According to the wireless vibration data acquisition device according to an embodiment of the present invention, the first timing mode and the second timing mode support switching between the standby and acquisition by controlling the power consumption mode.

根据本发明一个实施例的无线振动数据采集装置,所述沉睡模式包括:常态休眠,只支持外部唤醒。According to the wireless vibration data collection device according to an embodiment of the present invention, the sleep mode includes: normal sleep, and only supports external wake-up.

根据本发明一个实施例的无线振动数据采集装置,所述振动传感器,具体采用可变精度和可变数据域配置的方式采集振动数据。According to the wireless vibration data collection device of an embodiment of the present invention, the vibration sensor specifically collects vibration data by means of variable precision and variable data field configuration.

根据本发明一个实施例的无线振动数据采集装置,所述数据处理器,还用于根据获取到的射频信号质量进行射频性能评估,并根据所评估的射频性能设定发射功率。According to the wireless vibration data acquisition device according to an embodiment of the present invention, the data processor is further configured to perform radio frequency performance evaluation according to the acquired radio frequency signal quality, and set the transmit power according to the evaluated radio frequency performance.

根据本发明一个实施例的无线振动数据采集装置,若所述射频信号质量低于第一阈值,则切换为高发射功率,若所述射频信号质量高于第二阈值,则切换为低发射功率,其中,所述第一阈值小于所述第二阈值。According to the wireless vibration data acquisition device of an embodiment of the present invention, if the quality of the radio frequency signal is lower than a first threshold, it switches to a high transmission power, and if the quality of the radio frequency signal is higher than a second threshold, it switches to a low transmission power , wherein the first threshold is smaller than the second threshold.

根据本发明一个实施例的无线振动数据采集装置,所述数据处理器采用直接存储器存取DMA通道分别连接所述振动传感器、无线网络接口以及数据缓存。According to the wireless vibration data acquisition device according to an embodiment of the present invention, the data processor adopts a direct memory access DMA channel to connect the vibration sensor, the wireless network interface and the data cache respectively.

本发明实施例提供的无线振动数据采集装置,基于多种功耗模式的设计,提升能量利用效率,实现了低功耗的振动数据的采集,提高了振动数据采集的稳定性和可用性。The wireless vibration data acquisition device provided by the embodiment of the present invention improves the energy utilization efficiency based on the design of multiple power consumption modes, realizes the acquisition of vibration data with low power consumption, and improves the stability and usability of the vibration data acquisition.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

图1是本发明实施例提供的一种无线振动数据采集装置的结构示意图。FIG. 1 is a schematic structural diagram of a wireless vibration data acquisition device according to an embodiment of the present invention.

具体实施方式Detailed ways

为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图1,图1为本发明实施例提供的一种无线振动数据采集装置结构示意图,如图1所示的无线振动数据采集装置包括:振动传感器10、数据处理器11、无线网络接口12、数据缓存13以及电源14;Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a wireless vibration data acquisition device according to an embodiment of the present invention. The wireless vibration data acquisition device shown in FIG. 1 includes: a vibration sensor 10 , a data processor 11 , and a wireless network interface 12 , data cache 13 and power supply 14;

其中,数据处理器11分别连接振动传感器10、无线网络接口12、数据缓存13以及电源14;The data processor 11 is respectively connected to the vibration sensor 10, the wireless network interface 12, the data cache 13 and the power supply 14;

振动传感器10用于采集振动数据,数据处理器11设置有多种与数据处理器11、振动传感器10以及无线网络接口12的工作状态相关联的功耗模式,数据处理器11用于根据当前的功耗设定需求选择对应的功耗模式。The vibration sensor 10 is used to collect vibration data, and the data processor 11 is provided with a variety of power consumption modes associated with the working states of the data processor 11, the vibration sensor 10 and the wireless network interface 12. The power consumption setting needs to select the corresponding power consumption mode.

通常,无线振动数据采集装置可以使用低功耗的CC3200数据处理器与ADXL357振动传感器作为主要部件,采用802.11n协议WIFI进行组网数据传输。采用通用宽压供电接口设计,可以容忍3-5V供电,设计采用锂电,也可切换至其他供电平台;采用NADA_SD进行辅助数据缓存;无线振动数据采集装置中的各元器件间采用直接存储器存取(Direct MemoryAccess,DMA)通道连接;元器件集成在30*30mm的印制电路板(Printed Circuit Board,PCB)上。Usually, the wireless vibration data acquisition device can use the low-power CC3200 data processor and the ADXL357 vibration sensor as the main components, and use the 802.11n protocol WIFI for networking data transmission. It adopts universal wide-voltage power supply interface design, which can tolerate 3-5V power supply. The design adopts lithium battery and can also be switched to other power supply platforms; NADA_SD is used for auxiliary data caching; direct memory access is used between components in the wireless vibration data acquisition device (Direct MemoryAccess, DMA) channel connection; components are integrated on a 30*30mm printed circuit board (Printed Circuit Board, PCB).

基于上述无线振动数据采集装置描述的内容,在上述无线振动数据采集装置结构示意图下,下面对低功耗电源控制方法进行说明,具体地:Based on the content described by the above-mentioned wireless vibration data acquisition device, and under the schematic structural diagram of the above-mentioned wireless vibration data acquisition device, the low-power power supply control method is described below, specifically:

采用分级电源管理模式,数据处理器11作为电源管理的核心执行者,由高到低设计功耗模式,如实时模式、定时模式以及沉睡模式。具体地,可以由高到低设计4种功耗模式,依次为实时模式、第一定时模式、第二定时模式以及沉睡模式。各功耗模式定义如下:Using the hierarchical power management mode, the data processor 11 acts as the core executor of power management, and designs power consumption modes from high to low, such as real-time mode, timing mode, and sleep mode. Specifically, four power consumption modes can be designed from high to low, which are the real-time mode, the first timing mode, the second timing mode, and the sleep mode in sequence. The power modes are defined as follows:

实时模式:按照设定规则持续采集、存储数据并按照规则采集上报数据,与服务器长连接,保证数据连续性,直至低电保护关机或者配置切换;Real-time mode: continuously collect and store data according to the set rules, collect and report data according to the rules, and connect to the server for a long time to ensure data continuity until the low-power protection shutdown or configuration switching;

第一定时模式:无任务期间休眠,休眠时可支持网络唤醒、定时唤醒、事件唤醒;其中主要唤醒模式为定时唤醒,唤醒后按照规则完成采集任务,之后再次进入休眠;The first timing mode: sleep during no task, and can support network wake-up, timing wake-up, and event wake-up during sleep; the main wake-up mode is timing wake-up. After wake-up, the collection task is completed according to the rules, and then it goes to sleep again;

第二定时模式:无任务期间休眠,休眠时可支持定时唤醒、事件唤醒;其中主要唤醒模式为定时唤醒,唤醒后按照规则完成采集任务,之后再次进入休眠;The second timing mode: sleep during no task, and can support timing wake-up and event wake-up during sleep; the main wake-up mode is timing wake-up. After wake-up, the collection task is completed according to the rules, and then it goes to sleep again;

沉睡模式:常态休眠,只支持外部唤醒。Sleep mode: normal sleep mode, only supports external wake-up.

其中,第一定时模式和第二定时模式可以单独按需控制功耗模式在待机和采集之间切换,从而改变整体功耗。Wherein, the first timing mode and the second timing mode can individually control the power consumption mode to switch between standby and acquisition as needed, thereby changing the overall power consumption.

根据功耗与数据需求可远程控制功耗模式切换,灵活配置采集任务,进行精细化功耗管理,在不同的功耗模式对应的功耗等级之间切换,以适合任务需求的最低功耗运行。具体地,如下表1所示:

Figure BDA0002619268590000051
According to power consumption and data requirements, the power mode switching can be remotely controlled, flexibly configure acquisition tasks, perform refined power management, switch between power consumption levels corresponding to different power modes, and run at the lowest power consumption that suits the task requirements. . Specifically, as shown in Table 1 below:
Figure BDA0002619268590000051

表1Table 1

下面对低功耗数据采集控制方法进行说明,具体地:The following describes the low-power data acquisition control method, specifically:

振动传感器10在进行数据采集时,采用可变精度和可变数据域配置的方法,数据处理器11可以设定为只采集感兴趣的最小量数据位,用于处理和传输,降低数据吞吐量,减少不必要的数据吞吐,以适合任务的最小资源工作,达到最低功耗。When the vibration sensor 10 is collecting data, the method of variable precision and variable data field configuration is adopted, and the data processor 11 can be set to collect only the minimum amount of data bits of interest for processing and transmission, reducing data throughput , reduce unnecessary data throughput, work with the minimum resources suitable for the task, and achieve the lowest power consumption.

下面对低功耗无线射频控制方法进行说明,具体地:The following describes the low-power wireless radio frequency control method, specifically:

数据处理器11根据获取到的射频信号质量进行射频性能评估,根据所评估的射频性能选取合适的发射功率,以降低输出功耗。The data processor 11 performs radio frequency performance evaluation according to the acquired radio frequency signal quality, and selects an appropriate transmit power according to the evaluated radio frequency performance to reduce output power consumption.

下面对低功耗控制流程进行说明,具体地:The low-power control flow is described below, specifically:

无线振动数据采集装置上电或启动后,根据当前的功耗设定需求和功能需求,可人工或者自动选择对应模式的功耗等级进行系统配置;After the wireless vibration data acquisition device is powered on or started, according to the current power consumption setting requirements and functional requirements, the power consumption level of the corresponding mode can be manually or automatically selected for system configuration;

无线振动数据采集装置运行时根据对数据的需求选择合理的功耗模式进行配置以及传输;When the wireless vibration data acquisition device is running, a reasonable power consumption mode is selected for configuration and transmission according to the demand for data;

无线振动数据采集装置运行时,根据射频信号质量采样进行射频性能评估,如果射频信号质量降低到低于第一阈值,切换为高发射功率,如果射频信号质量高于第二阈值,切换为低发射功率,第一阈值和第二阈值可以根据现场信号分布情况按需选取,且第一阈值小于第二阈值。When the wireless vibration data acquisition device is running, the radio frequency performance evaluation is performed according to the quality of the radio frequency signal. If the quality of the radio frequency signal drops below the first threshold, it switches to high transmit power, and if the quality of the radio frequency signal is higher than the second threshold, it switches to low transmit power The power, the first threshold and the second threshold can be selected as needed according to the distribution of on-site signals, and the first threshold is smaller than the second threshold.

综上,本发明采用低功耗的硬件架构设计和工作方法设计,实现了低功耗的无线振动数据的采集,可以明显减小无线振动数据采集装置的体积,提高无线振动数据采集装置的可用性和稳定性。使用精细化灵活的功耗管理模式,综合提升能量利用效率。可以有效延长无线振动数据采集装置的使用周期,减少维护频次。To sum up, the present invention adopts low power consumption hardware architecture design and working method design, realizes the collection of wireless vibration data with low power consumption, can significantly reduce the volume of the wireless vibration data collection device, and improve the usability of the wireless vibration data collection device. and stability. Use refined and flexible power management modes to comprehensively improve energy utilization efficiency. It can effectively prolong the service cycle of the wireless vibration data acquisition device and reduce the maintenance frequency.

最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A wireless vibration data acquisition device, comprising:
the system comprises a vibration sensor, a data processor, a wireless network interface, a data cache and a power supply;
the data processor is respectively connected with the vibration sensor, the wireless network interface, the data cache and the power supply;
the vibration sensor is used for collecting vibration data, the data processor is provided with a plurality of power consumption modes related to the working states of the data processor, the vibration sensor and the wireless network interface, and the data processor is used for selecting the corresponding power consumption mode according to the current power consumption setting requirement.
2. The wireless vibration data acquisition device according to claim 1, wherein the power consumption modes include a real-time mode, a timed mode, and a deep sleep mode.
3. The wireless vibration data acquisition device according to claim 2, wherein the real-time mode comprises: and continuously acquiring, storing and reporting data according to a set rule, and long-term connecting the data with a server until the low-power protection is shut down or the configuration is switched.
4. The wireless vibration data acquisition device of claim 2 wherein the timing mode comprises a first timing mode and a second timing mode, the first timing mode comprising: the method comprises the following steps that a task-free period is dormant, network awakening, timing awakening and event awakening are supported during dormancy, an acquisition task is completed according to a set rule after awakening, and then the task enters the dormancy again; the second timing mode comprises: and sleeping in a task-free period, supporting timing awakening and event awakening in the sleeping period, finishing an acquisition task according to the set rule after awakening, and then entering the sleeping period again.
5. The wireless vibration data collection device of claim 4, wherein said first timing mode and said second timing mode support controlling a power consumption mode to switch between standby and collection.
6. The wireless vibration data acquisition device of claim 2 wherein the deep sleep mode comprises: and normally sleeping, and only supporting external awakening.
7. The wireless vibration data collection device of claim 1, wherein the vibration sensor collects vibration data in a variable precision and variable data field configuration.
8. The wireless vibration data acquisition device according to claim 1, wherein the data processor is further configured to perform radio frequency performance evaluation according to the acquired radio frequency signal quality, and set the transmission power according to the evaluated radio frequency performance.
9. The wireless vibration data collection system of claim 8, wherein the radio frequency signal quality is lower than a first threshold, switching to high transmit power, and wherein the radio frequency signal quality is higher than a second threshold, switching to low transmit power, wherein the first threshold is less than the second threshold.
10. The wireless vibration data acquisition device according to any one of claims 1 to 9, wherein the data processor employs a Direct Memory Access (DMA) channel to connect the vibration sensor, the wireless network interface and the data cache, respectively.
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