CN210221390U - Bluetooth data collector for dynamic balance correction - Google Patents

Abstract

The utility model discloses a Bluetooth data collector for dynamic balance correction, which comprises a collector main body (1), wherein a circuit board, a vibration sensor and a temperature sensor are arranged in the collector main body (1); the circuit board is provided with a signal conditioning module, a data acquisition module and an embedded Bluetooth module; the temperature sensor and the vibration sensor are respectively connected with the signal conditioning module, and the Bluetooth data collector also comprises a Hall rotating speed sensor (2); hall revolution speed sensor's wire cup joints in a metal collapsible tube (3), and metal collapsible tube (3) insert collector main part (1) through aviation plug (4), and Hall revolution speed sensor's wire is connected to embedded bluetooth module. The utility model can be used for measuring various measurement quantities, saves the number of sensors to be carried during measurement, and can be combined to be used in the field of fault diagnosis such as dynamic balance correction; corresponding programs are compiled on different platforms, and then the data can be received for diagnosis and analysis, so that the applicability and the application range are greatly improved.

Description

Bluetooth data collector for dynamic balance correction

Technical Field

The utility model relates to an industrial automation control field specifically is a bluetooth data collection station for dynamic balance rectifies.

Background

With the rapid development and the increasing maturity of wireless technology, the industrial control field has urgent need and broad market for wireless technology, and more enterprises and individuals are dedicated to the research in this aspect. In the equipment fault diagnosis industry, the actual conditions that a large amount of daily routing inspection equipment and sensors are in wired connection, the measurement types are various, the equipment and the sensors are various and the like lead to the fact that operators need to carry multi-type equipment and sensors in different working conditions, so that the fault diagnosis work is complex and tedious, and the conditions of equipment redundancy and the like often occur. At present, vibration sensors based on wireless technologies such as Bluetooth and zigbee exist in the market of the field of fault diagnosis, and a collector of the sensor generally adopts an MEMS chip to collect signals, so that the defects of narrow frequency response range, low precision, certain error rate and the like exist; meanwhile, the sensor can only monitor vibration data, and the sensor splits the vibration data and other physical quantities, which is not beneficial to the implementation of other diagnosis methods.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned technical defect, provide a bluetooth data collection station for dynamic balance rectifies, and dynamic balance rectifies the process and adopts the rotational speed to trigger vibration data acquisition.

In order to realize the purpose, the technical scheme of the utility model is that:

a Bluetooth data collector for dynamic balance correction comprises a collector main body, wherein a circuit board, a vibration sensor and a temperature sensor are arranged in the collector main body; the circuit board is provided with a signal conditioning module, a data acquisition module and an embedded Bluetooth module; the signal conditioning module comprises an integrating circuit, an amplifying circuit and a filtering circuit for collecting signals; temperature sensor and vibration sensor are connected with signal conditioning module respectively, and the acquisition signal links to each other with signal conditioning module, and the acquisition signal passes through signal conditioning module and transmits to data acquisition module, and embedded bluetooth module is gone into again, through the bluetooth with signal transmission to cell-phone APP. The Bluetooth data acquisition unit also comprises a Hall rotating speed sensor; the wire of the Hall rotating speed sensor is sleeved in a metal hose, the metal hose is connected into the collector main body through an aviation plug, and the wire of the Hall rotating speed sensor is connected to the embedded Bluetooth module.

The further optimization scheme is that the vibration sensor is a piezoelectric ceramic vibration sensor. The vibration signal is converted from piezoelectric effect of piezoelectric ceramics, the range is wide, the precision is high, and three parameters of acceleration, speed and displacement can be selectively acquired by utilizing an integral chip.

The further optimization scheme is as follows: the data acquisition module is provided with an ADC chip. The signals are a/D converted, data buffered, filtered and transmitted.

The scheme is further as follows: the Bluetooth module adopts Bluetooth 4.2BLE and can be seamlessly connected with a mobile phone and a tablet.

The further optimization scheme is as follows: the collector body is connected with a transmission antenna. An installation flange is connected below the collector main body.

The utility model has the advantages that:

the vibration sensor, the temperature sensor and the rotating speed sensor are integrated, so that the vibration sensor, the temperature sensor and the rotating speed sensor can be used for measuring various measurement quantities, the number of sensors carried during measurement is saved, and the vibration sensor, the temperature sensor and the rotating speed sensor can be used in the field of fault diagnosis such as dynamic balance correction in a combined manner; corresponding programs are compiled on different platforms, and then the data can be received for diagnosis and analysis, so that the applicability and the application range are greatly improved.

The vibration sensor adopts a piezoelectric ceramic vibration sensor, the frequency response of the acquired signal is wide, and the linearity is better than that of an MEMS chip.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the circuit logic of the present invention;

fig. 3 is a schematic view of the appearance structure of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, a bluetooth data collector for dynamic balance correction comprises a collector main body 1, wherein a circuit board, a vibration sensor and a temperature sensor are arranged in the collector main body 1; the circuit board is provided with a signal conditioning module, a data acquisition module and an embedded Bluetooth module; the signal conditioning module comprises an integrating circuit, an amplifying circuit and a filtering circuit for collecting signals; temperature sensor and vibration sensor are connected with signal conditioning module respectively, and the acquisition signal links to each other with signal conditioning module, with signal transmission to data acquisition module, and embedded bluetooth module is gone into again, through the bluetooth with signal transmission to cell-phone APP. The Bluetooth data acquisition unit also comprises a Hall rotating speed sensor 2; the conductor of the Hall rotation speed sensor is sleeved in a metal hose 3, the metal hose 3 is connected into the collector main body 1 through an aviation plug 4, and the conductor of the Hall rotation speed sensor is connected to the embedded Bluetooth module. The vibration sensor is a piezoelectric ceramic vibration sensor.

As shown in fig. 1, the sensor of the data collector based on bluetooth is connected to the signal processing module. The signal processing module comprises an integrating circuit, an amplifying circuit and a filtering circuit for acquiring signals, and is connected to the data acquisition module after processing, the data acquisition module mainly utilizes an ADC chip to perform A/D conversion, data buffering, filtering and transmission on the signals, and then the signals enter the embedded Bluetooth module to be transmitted through Bluetooth.

As shown in fig. 2, the signal processing module includes sensor integrating, amplifying, and filtering circuits.

The integration circuit selects a two-way precision switch integration chip ACF2101 of TI company for construction. Compared with the traditional integration circuit built by using a resistor and a capacitor, the design has smaller volume and lower power consumption, and is beneficial to the service life of the sensor; compared with software integration, the numerical value obtained by the design is more accurate and reliable.

The filter circuit adopts a J-FET dual operational amplifier. It is characterized in that: lower input bias voltage and offset current; the output is provided with short-circuit protection; the input stage has a high input impedance; a built-in frequency compensation circuit; higher slew rate. The A/D analog-to-digital processor adopts 16 bits and has 40 dB anti-aliasing inhibition characteristic. The flexible digital filter is pin driven, which improves the signal-to-noise ratio (SNR) and reduces the 3 dB bandwidth.

The A/D chip selects an analog-to-digital conversion ADS122C04 chip with a low-power consumption 4-channel band I2C interface. The ADS122C04 is a 24-bit precision analog-to-digital converter with a sampling rate of 2K at most, thereby reducing the system cost and the number of sensor components. For industrial applications in noisy environments, 50Hz and 60Hz suppression is provided. The precision and sampling rate of the method can meet the requirements of dynamic balance correction.

The Bluetooth chip selects Enzhipu KW 31Z. The KW31Z is an ultra-low power consumption and high integration Bluetooth 4.2BLE chip device, integrates a 2.4 GHz transceiver, supports FSK/GFSK modulation, and comprises an ARM Cortex-M0+ CPU, a flash memory up to 512KB and a 128 KB SRAM.

As shown in fig. 3, the collector appearance structure mainly comprises a collector body 1, an antenna 5, a hall revolution speed sensor 2, a metal hose 3 and a mounting flange 6.

All circuit boards and batteries are placed in a large cylinder above the harvester body. The external antenna is accessed through the TNC interface.

The flange can select other components such as screws or magnets according to different application scenarios.

The piezoelectric ceramic vibration sensor module and the temperature sensor are arranged in a cylinder below the main body.

The Hall speed sensor 2 is sleeved in a metal hose through a lead, and the metal hose is connected into the collector main body 1 through a miniature aviation plug 4. When the rotating speed is measured or the dynamic balance measurement needs rotating speed triggering, the Hall rotating speed sensor is positioned at a proper position by utilizing the metal hose to measure.

Claims (6)

1. A Bluetooth data collector for dynamic balance correction comprises a collector main body (1), wherein a circuit board, a vibration sensor and a temperature sensor are arranged in the collector main body (1); the circuit board is provided with a signal conditioning module, a data acquisition module and an embedded Bluetooth module; the signal conditioning module comprises an integrating circuit, an amplifying circuit and a filtering circuit for collecting signals; temperature sensor and vibration sensor are connected with signal conditioning module respectively, its characterized in that: the Bluetooth data acquisition unit also comprises a Hall rotating speed sensor (2); hall revolution speed sensor's wire cup joints in a metal collapsible tube (3), and metal collapsible tube (3) insert collector main part (1) through aviation plug (4), and Hall revolution speed sensor's wire is connected to embedded bluetooth module.

2. The bluetooth data collector for dynamic balance correction according to claim 1, characterized in that: the vibration sensor is a piezoelectric ceramic vibration sensor.

3. The bluetooth data collector for dynamic balance correction according to claim 1, characterized in that: the data acquisition module is provided with an ADC chip.

4. The bluetooth data collector for dynamic balance correction according to claim 1, characterized in that: the Bluetooth module adopts Bluetooth 4.2 BLE.

5. The bluetooth data collector for dynamic balance correction according to claim 1, characterized in that: the collector body (1) is connected with a transmission antenna (5).

6. The bluetooth data collector for dynamic balance correction according to claim 1, characterized in that: a mounting flange (6) is connected to the lower portion of the collector body (1).

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