Acceleration data acquisition device

Abstract

The utility model discloses an acceleration data acquisition device which comprises a data acquisition module, a data acquisition trigger module and a data storage module. The data acquisition module comprises a three-axis acceleration sensor, a man-machine interaction unit and a first controller, and the three-axis acceleration sensor and the man-machine interaction unit are electrically connected with the first controller; the data acquisition trigger module comprises a current measurement unit, a current signal acquisition unit and a second controller, the current measurement unit and the current signal acquisition unit are electrically connected with the second controller, and the second controller is in wireless communication connection with the first controller; the data acquisition triggering module is used for triggering the three-axis acceleration sensor to acquire acceleration data; the data storage module is used for storing acceleration data collected by the three-axis acceleration sensor. Acquisition of acceleration data can be automatically triggered according to the running state of the crane or the elevator, data validity is improved, resource waste is avoided, and detection cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to crane, elevator detection technical field, especially a kind of acceleration data acquisition device. BACKGROUND

[0002] Through the collection and analysis of the three-axis acceleration of crane hook or elevator car and other equipment, the vibration state and motion state can be quickly quantitatively evaluated. For example, the vibration frequency weighting analysis of the vibration acceleration of the three orthogonal directions of the elevator car is carried out to evaluate the elevator vibration comfort, and the integral operation of the vertical direction acceleration on the elevator is carried out to obtain the elevator running speed and running displacement. By spectrum analysis of vibration acceleration, the rotating component fault source causing abnormal vibration can be determined. Therefore, by monitoring the acceleration data during the movement of the equipment, the running state of the equipment can be monitored in real time, and the hidden trouble can be found early, and the problems found can be handled in time.

[0003] Because of vibration interference and temperature influence, the existing acceleration data acquisition device adopts full-range data acquisition, and the three-axis acceleration data in running state is effective data. The three-axis acceleration data in static state has little significance for analyzing the running state of the equipment, and it is unnecessary to collect. Collecting the three-axis acceleration data in running state and static state occupies a lot of data storage space and requires a lot of computing power, causing resource waste and high detection cost. UTILITY MODEL CONTENT

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides an acceleration data acquisition device, which can automatically trigger the collection of acceleration data according to the running state of the crane or elevator, improve the effectiveness of data, avoid resource waste and reduce the detection cost.

[0005] The utility model embodiment provides an acceleration data acquisition device, which comprises a data acquisition module, a data acquisition trigger module and a data storage module.

[0006] The data acquisition module comprises a three-axis acceleration sensor, a man-machine interaction unit and a first controller, and the three-axis acceleration sensor and the man-machine interaction unit are electrically connected with the first controller respectively.

[0007] The data acquisition trigger module comprises a current measurement unit, a current signal acquisition unit and a second controller, and the current measurement unit and the current signal acquisition unit are electrically connected with the second controller respectively. The second controller is wirelessly connected with the first controller, and the data acquisition trigger module is used to trigger the three-axis acceleration sensor to collect acceleration data.

[0008] The data storage module is configured to store acceleration data collected by the three-axis acceleration sensor.

[0009] According to some embodiments of the present application, the current measurement unit comprises a current transformer, which is a measurement current transformer, configured to provide current information to the current signal acquisition unit.

[0010] According to some embodiments of the present application, the current signal acquisition unit comprises an A / D converter, which is connected to the current transformer and configured to convert the current signal collected by the current transformer into a digital signal.

[0011] According to some embodiments of the present application, the three-axis acceleration sensor is installed above the hook of the crane by magnetic attraction or threaded connection, and the current transformer is configured to measure the current of the safety circuit of the crane.

[0012] According to some embodiments of the present application, the three-axis acceleration sensor is installed on the top of the elevator car by magnetic attraction or threaded connection, and the current transformer is configured to measure the current of the safety circuit of the elevator.

[0013] According to some embodiments of the present application, the man-machine interaction unit comprises a key group and an indicator light, which are electrically connected to the first controller, respectively, the key group comprises a plurality of keys, which are configured to control the collection of acceleration data, and the indicator light is configured to indicate the collection status of acceleration data.

[0014] According to some embodiments of the present application, the data acquisition module further comprises a first wireless communication unit, which is electrically connected to the first controller and adopts a Wi-Fi or Bluetooth communication module.

[0015] According to some embodiments of the present application, the data acquisition triggering module further comprises a second wireless communication unit, which is electrically connected to the second controller and adopts a Wi-Fi or Bluetooth communication module.

[0016] According to some embodiments of the present application, the data storage module is a local data storage unit.

[0017] According to some embodiments of the present application, the data storage module comprises a local data storage unit and a cloud storage server.

[0018] The embodiments of the present application have at least the following advantages:

[0019] The acceleration data acquisition device provided by the utility model comprises a data acquisition module, a data acquisition trigger module and a data storage module. The acceleration data of the crane or the elevator and the like in three directions of X axis, Y axis and Z axis is collected through the three-axis acceleration sensor, and basic data support is provided for subsequent data analysis. The man-machine interaction unit allows the user to operate the device and perform interactive operations such as setting collection parameters. The first controller is responsible for managing and controlling various components of the data acquisition module, and ensures the orderly progress of the data collection process. The current measurement unit and the current signal acquisition unit are used for collecting the safety loop current of the crane or the elevator, and the current information reflects the running state of the device. According to the running state of the device, the second controller exchanges data with the first controller through wireless communication means, and triggers the three-axis acceleration sensor to collect acceleration data. The data storage module can store the acceleration data collected by the three-axis acceleration sensor, and provides support for subsequent data analysis. Through the cooperative work of the above-mentioned various modules, the acceleration data can be automatically triggered and collected according to the running state of the crane or the elevator, the data effectiveness is improved, resource waste is avoided, and the detection cost is reduced.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Figure 1 The module diagram of the acceleration data acquisition device of the utility model embodiment is shown in the figure.

[0023] Figure 2 The structure schematic diagram of the crane acceleration data acquisition device of the utility model embodiment is shown in the figure.

[0024] Figure 3 The structure schematic diagram of the elevator acceleration data acquisition device of the utility model embodiment is shown in the figure.

[0025] Figure 4 The structure schematic diagram of the manual trigger mode of the elevator acceleration data acquisition device of the utility model embodiment is shown in the figure.

[0026] REFERENCE NUMERALS:

[0027] Data acquisition module 100, three-axis acceleration sensor 110, man-machine interaction unit 120, button group 121, indicator light 122, first controller 130, first wireless communication unit 140.

[0028] The data acquisition trigger module 200, the current measurement unit 210, the current signal acquisition unit 220, the second controller 230, and the second wireless communication unit 240;

[0029] The data storage module 300, the cloud storage server 310, the crane hook 410, the elevator car 510, the elevator machine room 520, the wireless router 530, and the handheld intelligent terminal 600. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, greater than, less than, more than, etc. are understood as not including the number, "above", "below", "within", etc. are understood as including the number. If it is described as "first", "second", etc., it is only used to distinguish the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0033] In the description of the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and "connected" should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] The technical solutions of the present application are described in detail below by referring to the drawings and specific embodiments.

[0035] Please refer to Figures 1 to 3The embodiment discloses an acceleration data acquisition device, which comprises a data acquisition module 100, a data acquisition trigger module 200 and a data storage module 300. The data acquisition module 100 comprises a three-axis acceleration sensor 110, a human-computer interaction unit 120 and a first controller 130, and the three-axis acceleration sensor 110 and the human-computer interaction unit 120 are electrically connected with the first controller 130 respectively; the data acquisition trigger module 200 comprises a current measurement unit 210, a current signal acquisition unit 220 and a second controller 230, and the current measurement unit 210 and the current signal acquisition unit 220 are electrically connected with the second controller 230 respectively, the second controller 230 is in wireless communication connection with the first controller 130, and the data acquisition trigger module 200 is used for triggering the three-axis acceleration sensor 110 to acquire acceleration data; and the data storage module 300 is used for storing the acceleration data acquired by the three-axis acceleration sensor 110.

[0036] The three-axis acceleration sensor 110 is used for acquiring acceleration data of a crane or an elevator in three directions of X-axis, Y-axis and Z-axis, thereby providing basic data support for subsequent data analysis. The human-computer interaction unit 120 allows a user to operate the device and perform interactive operations such as setting acquisition parameters. The first controller 130 is responsible for managing and controlling various components of the data acquisition module 100, thereby ensuring the orderly progress of the data acquisition process. The current measurement unit 210 and the current signal acquisition unit 220 are used for acquiring the safety loop current of the crane or the elevator, and the current information reflects the running state of the device. According to the running state of the device, the second controller 230 exchanges data with the first controller 130 through wireless communication means, thereby triggering the three-axis acceleration sensor 110 to acquire acceleration data. The data storage module 300 can store the acceleration data acquired by the three-axis acceleration sensor 110, thereby providing support for subsequent data analysis. Through the cooperative work of the above-mentioned modules, acceleration data can be automatically triggered to be acquired according to the running state of the crane or the elevator, the data effectiveness is improved, resource waste is avoided, and the detection cost is reduced.

[0037] See Figure 1The current measurement unit 210 includes a current transformer, which is a measuring current transformer, for providing current information to the current signal acquisition unit 220. The current signal acquisition unit 220 includes an A / D converter connected to the current transformer, which is used to convert the current signal collected by the current transformer into a digital signal. The current transformer in the current measurement unit 210 is used to accurately collect current information in the circuit and transmit the current information to the current signal acquisition unit 220. The current transformer is a measuring current transformer, which can ensure high precision and stability of current measurement, meeting the high requirements in actual application. The A / D converter in the current signal acquisition unit 220 is responsible for converting the analog current signal collected by the current transformer into a digital signal that is easy to process and transmit. This conversion makes subsequent signal processing and analysis simple and efficient. When the current passes through the current transformer, it will produce a magnetic flux change proportional to the current. The current transformer transmits this change to the A / D converter, which converts the changing current signal into a digital signal output. Thus, the three-axis acceleration sensor 110 can collect acceleration data according to the running state of the crane or elevator.

[0038] Please refer to Figure 2 The three-axis acceleration sensor 110 is installed above the crane hook 410 by magnetic attraction or threaded connection, and the current transformer is used to measure the current of the crane safety circuit. The three-axis acceleration sensor 110 is fixed above the crane hook 410 by magnetic attraction or threaded connection, and moves synchronously with the crane hook 410 to record the acceleration data of the crane. The three-axis acceleration sensor 110 is responsible for monitoring the acceleration data of the crane hook 410 and is fixed above the crane hook 410 by magnetic attraction or threaded connection, which can accurately record the vibration and acceleration change of the crane during operation; the current transformer is used to measure the current in the crane safety circuit. When the crane hook 410 is lifted, the current transformer detects the crane circuit current through electromagnetic induction principle and converts the current signal into an electrical signal to transmit to the second controller 230. The second controller 230 communicates with the first controller 130 wirelessly and triggers the three-axis acceleration sensor 110 to collect the acceleration data of the crane hook 410.

[0039] Please refer to Figure 3The triaxial acceleration sensor 110 is installed on the top of the elevator car 510 by magnetic attraction or threaded connection, and the current transformer is used to measure the current of the elevator safety circuit. The data acquisition module 100 is fixed on the top of the elevator car 510 by magnetic attraction or threaded connection, and moves synchronously with the elevator car 510 to record the acceleration data of the elevator. The triaxial acceleration sensor 110 is installed on the top of the elevator car 510 by magnetic attraction or threaded connection, and its main function is to monitor the acceleration change of the elevator during the up and down movement in real time. The current transformer is used to measure the current in the elevator safety circuit, and the safety and stability of the elevator electrical system are ensured by detecting the change of the current. The elevator safety circuit is composed of a plurality of safety switches connected in series, and when all the safety switches are closed, the safety circuit is connected, and the elevator has the running condition, so the on-off state of the safety circuit can be used as the basis for judging the running and static state of the elevator. The triaxial acceleration sensor 110 is fixed on the top of the elevator car 510, moves synchronously with the elevator car 510 and collects the acceleration data transmitted by the acceleration sensor. When the elevator car 510 is ascending or descending, the current transformer detects the current of the elevator safety circuit through electromagnetic induction principle, and converts the current signal into an electric signal and transmits it to the second controller 230. The second controller 230 communicates with the first controller 130 wirelessly, and triggers the triaxial acceleration sensor 110 to collect the acceleration data of the elevator car 510.

[0040] Please refer to Figure 1 The human-computer interaction unit 120 includes a key group 121 and an indicator light 122, and the key group 121 and the indicator light 122 are electrically connected with the first controller 130 respectively. The key group 121 includes a plurality of keys, and the plurality of keys are used to control the acceleration data acquisition. The indicator light 122 is used to indicate the acceleration data acquisition status. The key group 121 in the human-computer interaction unit 120 is used to receive the control signal of the operator. The plurality of keys can be used to start, stop or set the parameters of the acceleration data acquisition respectively. The indicator light 122 is used to feedback the state of the acceleration data acquisition in real time. When the data acquisition starts or ends, the indicator light will light up or turn off accordingly. The key group 121 and the indicator light 122 are electrically connected with the first controller 130 respectively, so that the operator can control through the keys, and the first controller 130 can receive and process the key signal and the indicator light feedback. The operation control and state visualization of the acceleration data acquisition are realized through the human-computer interaction unit 120.

[0041] Please refer to Figure 1, the data acquisition module 100 further comprises a first wireless communication unit 140, the first wireless communication unit 140 is electrically connected with the first controller 130, the first wireless communication unit 140 adopts a Wi-Fi or Bluetooth communication module. For example, the data acquisition module 100 is connected with a wireless router 530 of an elevator machine room 520 through Wi-Fi, the wireless router 530 communicates with a remote server through a 4G / 5G network to realize acceleration data transmission.

[0042] Please refer to Figure 1 , the data acquisition trigger module 200 further comprises a second wireless communication unit 240, the second wireless communication unit 240 is electrically connected with the second controller 230, the second wireless communication unit 240 adopts a Wi-Fi or Bluetooth communication module. For example, the data acquisition trigger module 200 communicates with the data acquisition module 100 wirelessly through Wi-Fi, so as to trigger the triaxial acceleration sensor 110 to start collecting acceleration data.

[0043] Please refer to Figure 1 and Figure 3 , the data storage module 300 comprises a local data storage unit and a cloud storage server 310. The acceleration data is stored in the data storage unit and the cloud storage server 310, which is double backed up to ensure data security. It should be noted that in some embodiments, the data storage module 300 can be a local data storage unit, and does not need to be configured with a cloud storage server 310.

[0044] Please refer to Figure 4 , the acceleration data acquisition also supports a manual trigger mode, a handheld intelligent terminal 600 device, such as a smart phone or a smart tablet computer, is used to communicate with the first wireless communication unit 140 through Wi-Fi to realize manual control of elevator acceleration acquisition. In this mode, the data acquisition trigger module 200 is not needed, which is a manual control mode. The collected elevator acceleration data is stored in the handheld intelligent terminal 600, and subsequent processing is performed by the handheld intelligent terminal device 600.

[0045] Please refer to Figure 3The data acquisition module 100 realizes the acquisition of three-axis acceleration data in the process of elevator operation, and uploads the field-acquired acceleration data to the cloud storage server 310 through the first wireless communication unit 140. The data acquisition trigger signal between the data acquisition trigger module 200 and the data acquisition module 100 adopts Wi-Fi wireless communication, the data transmission between the data acquisition module 100 and the wireless router 530 is Wi-Fi communication, and the wireless router 530 and the cloud storage server 310 send the elevator field acceleration data to the cloud storage server 310 through the 4G / 5G communication mode. The current measurement unit 210 continuously acquires the current in the safety circuit of the crane or the elevator, if the current in the safety circuit is measured, it indicates that the equipment is in the running state, and if there is no current, it indicates that the equipment is in the static state. When the safety circuit current is monitored from nothing to something, it indicates that the device changes from a static state to a running state; when the current in the safety circuit is monitored from something to nothing, it indicates that the device changes from a running state to a static state. The current signal acquisition unit 220 acquires the current signal measured by the current measurement unit 210, and sends the data to the second controller 230, and the second controller 230 judges the safety circuit current transformation process in real time, when the second controller 230 judges that there is a current change, the start acquisition or stop acquisition instruction is transmitted to the first controller 130 through wireless communication, so as to realize the control of the start and end of the data acquisition module 100 acquisition. The acceleration data can be automatically triggered to collect according to the running state of the crane or the elevator, the data validity is improved, the resource waste is avoided, and the detection cost is reduced.

[0046] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. An acceleration data acquisition device, comprising a data acquisition module (100), characterized in that, It also includes a data acquisition trigger module (200) and a data storage module (300); The data acquisition module (100) includes a triaxial accelerometer (110), a human-machine interaction unit (120), and a first controller (130). The triaxial accelerometer (110) and the human-machine interaction unit (120) are electrically connected to the first controller (130). The data acquisition trigger module (200) includes a current measurement unit (210), a current signal acquisition unit (220), and a second controller (230). The current measurement unit (210) and the current signal acquisition unit (220) are electrically connected to the second controller (230), and the second controller (230) is wirelessly connected to the first controller (130). The data acquisition trigger module (200) is used to trigger the triaxial accelerometer (110) to acquire acceleration data. The data storage module (300) is used to store the acceleration data collected by the triaxial accelerometer (110).

2. The acceleration data acquisition device according to claim 1, characterized in that, The current measurement unit (210) includes a current transformer, which is a current transformer for measurement and is used to provide current information to the current signal acquisition unit (220).

3. The acceleration data acquisition device according to claim 2, characterized in that, The current signal acquisition unit (220) includes an A / D converter, which is connected to the current transformer and is used to convert the current signal acquired by the current transformer into a digital signal.

4. The acceleration data acquisition device according to claim 3, characterized in that, The triaxial accelerometer (110) is mounted above the crane hook (410) by magnetic attraction or threaded connection, and the current transformer is used to measure the current of the crane safety circuit.

5. The acceleration data acquisition device according to claim 3, characterized in that, The triaxial accelerometer (110) is installed on the top of the elevator car (510) by magnetic attraction or threaded connection, and the current transformer is used to measure the current of the elevator safety circuit.

6. The acceleration data acquisition device according to claim 1, characterized in that, The human-computer interaction unit (120) includes a button group (121) and an indicator light (122). The button group (121) and the indicator light (122) are electrically connected to the first controller (130). The button group (121) includes multiple buttons for controlling acceleration data acquisition. The indicator light (122) is used to indicate the acceleration data acquisition status.

7. The acceleration data acquisition device according to claim 1, characterized in that, The data acquisition module (100) further includes a first wireless communication unit (140), which is electrically connected to the first controller (130). The first wireless communication unit (140) adopts a Wi-Fi or Bluetooth communication module.

8. The acceleration data acquisition device according to claim 7, characterized in that, The data acquisition triggering module (200) further includes a second wireless communication unit (240), which is electrically connected to the second controller (230). The second wireless communication unit (240) adopts a Wi-Fi or Bluetooth communication module.

9. The acceleration data acquisition device according to claim 1, characterized in that, The data storage module (300) is a local data storage unit.

10. The acceleration data acquisition device according to claim 1, characterized in that, The data storage module (300) includes a local data storage unit and a cloud storage server (310).

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