Portable piezoelectric vibration sensor detection device

Abstract

The utility model relates to a portable piezoelectric vibration sensor detection device comprising a housing, the surface of the housing is provided with a BNC joint, a display screen, a control keyboard and a USB interface, the housing is internally provided with a circuit board assembly and a power supply module, the circuit board assembly is respectively connected with the BNC joint, the display screen, the control keyboard and the USB interface, and the power supply module is connected with the BNC joint, the display screen, the control keyboard and the USB interface. The power supply module is respectively connected with the control keyboard, the display screen, the circuit board assembly and the USB interface and supplies power to the control keyboard, the display screen, the circuit board assembly and the USB interface; and the circuit board assembly comprises a single chip microcomputer module. According to the utility model, a circuit board assembly program is adopted to call characteristic data of different types of sensors in a database, the accessed sensors are automatically detected, and a detection result is printed on the display screen to be displayed and is used for rapidly positioning faults of the sensors.

Description

Technical Field

[0001] The utility model belongs to the technical field of fault detection equipment, in particular to a portable piezoelectric vibration sensor detection device. Background Art

[0002] Vibration sensors are used to collect vibration information from aircraft moving parts and the body of the aircraft. The acquisition system provides active excitation for the vibration sensors. The sensors input the vibration values they sense into the acquisition system through cables for signal acquisition and processing. Failure or degradation of any part from the sensor to the acquisition system will affect the accuracy of vibration signal acquisition.

[0003] When it is determined that the vibration signal collection is inaccurate or it is clear that it has a fault, it is necessary to confirm which specific part of the entire collection system has a problem so that it can be repaired quickly. Therefore, a vibration sensor detection device is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a portable piezoelectric vibration sensor detection device, which can quickly perform fault detection and fault location when a fault occurs in a vibration sensor acquisition channel.

[0005] The technical solution adopted by the utility model to solve its technical problems is: to provide a portable piezoelectric vibration sensor detection device, including a shell, a BNC connector, a display screen, a control keyboard and a USB interface are provided on the surface of the shell, a circuit board assembly and a power supply module are provided inside the shell, the circuit board assembly is respectively connected to the BNC connector, the display screen, the control keyboard and the USB interface, the power module is respectively connected to the control keyboard, the display screen, the circuit board assembly and the USB interface and supplies power to them, the circuit board assembly includes a single-chip microcomputer module, the single-chip microcomputer module is connected to the BNC connector through a sensor detection front-end circuit module, is connected to the USB communication power supply interface through a UART to USB module, is connected to the power module through a power system module, is connected to the control keyboard through a keyboard module, is connected to the display screen through an LED drive interface module, and the USB communication power supply interface module is connected to the USB interface.

[0006] Preferably, the power module is a lithium battery module.

[0007] Preferably, the BNC connector, display screen, control keyboard, USB interface, circuit board assembly and power module are connected to each other via twisted-pair shielded cables.

[0008] Preferably, the BNC connector is detachably mounted on the top surface of the housing via a locking buckle.

[0009] Preferably, the display screen is detachably mounted on the front side of the housing via a locking buckle.

[0010] The present invention utilizes a circuit board assembly program to access characteristic data from a database of different sensor types, automatically detects connected sensors, and prints the test results on a display screen for rapid sensor fault location. The internal database can be updated via a USB port, meeting the need for testing a wider range of sensor types. The internal battery can also be charged via the USB port. The device boasts simple operation, ease of use, and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of a portable piezoelectric vibration sensor detection device.

[0012] Figure 2 This is a wiring diagram for a portable piezoelectric vibration sensor detection device.

[0013] Figure 3 This is the circuit schematic diagram of the microcontroller module in the circuit board assembly.

[0014] Figure 4 This is the circuit schematic diagram of the sensor detection front-end circuit module in the circuit board assembly.

[0015] Figure 5 This is the circuit schematic diagram of the USB communication power supply interface module in the circuit board assembly.

[0016] Figure 6 This is the circuit schematic of the UART-to-USB module in the circuit board assembly.

[0017] Figure 7 This is the circuit schematic diagram of the keyboard module in the circuit board assembly.

[0018] Figure 8 This is the circuit schematic diagram of the LED driver interface module in the circuit board assembly.

[0019] Figure 9 This is the circuit schematic diagram of the power module in the circuit board assembly.

[0020] Among them, 1-display screen; 2-BNC connector; 3-control keyboard; 4-USB interface; 5-housing; 6-circuit board assembly; 7-power module.

[0021] The same reference numerals in the various drawings represent the same components. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0023] like Figure 1 As shown, the utility model provides a portable piezoelectric vibration sensor detection device, including a shell 5, a BNC connector 2, a display screen 1, a control keyboard 3 and a USB interface 4 are provided on the surface of the shell 5, a circuit board assembly 6 and a power module 7 are provided inside the shell 5, the circuit board assembly 6 is respectively connected to the BNC connector 2, the display screen 1, the control keyboard 3, and the USB interface 4, and the power module 7 is respectively connected to the control keyboard 3, the display screen 1, the circuit board assembly 6 and the USB interface 4 and supplies power to them.

[0024] like Figures 3 to 9 As shown, the circuit board assembly 6 primarily comprises a single-chip microcomputer module, which is used to store various sensor characteristic data. Furthermore, the single-chip microcomputer module is connected to the BNC connector 2 via a sensor detection front-end circuit module, to the USB communication power interface via a UART-to-USB module, to the power module 7 via a power system module, to the control keyboard 3 via a keyboard module, and to the display screen 1 via an LED driver interface module. The USB communication power interface module is connected to the USB interface 4.

[0025] When the present invention is in use, the buttons on the control keyboard 3 control the single-chip microcomputer module to select the connected sensor model. The sensor detection front-end circuit module's signal acquisition front-end signal conditioning circuit conditions the output signal of the connected sensor, and the single-chip microcomputer module converts the collected analog signal into a digital signal. After the single-chip microcomputer module processes the collected data, it extracts the characteristic data of the connected sensor and compares and analyzes it with the characteristic data stored in the database. Based on the analysis results, the sensor status information is displayed on the display screen 1 or output through the USB interface 4 for fault analysis.

[0026] In a specific embodiment, the power module 7 is a lithium battery module. Lithium batteries have the advantages of high energy density, long life, fast charge and discharge, light weight and environmental protection, etc. By having a self-powered power supply, the portability of the device can be improved.

[0027] The BNC connector 2, display screen 1, control keyboard 3, USB interface 4, circuit board assembly 6 and power module 7 are connected to each other via twisted-pair shielded cables.

[0028] The surface of the housing 5 is provided with reserved holes at the installation positions of the BNC connector 2 , the display screen 1 and the USB interface 4 .

[0029] The BNC connector 2 is detachably mounted in a reserved hole on the top surface of the housing 5 through locking buckles and nuts provided around the periphery, so that the BNC connector 2 can be replaced according to usage.

[0030] The display screen 1 is detachably mounted in the reserved hole on the front of the housing 5 by means of locking buckles and screws provided around the periphery, so that the display screen 1 can be replaced according to the usage. The display screen 1 is an LED screen.

[0031] The USB interface 4 is fastened to the reserved hole on the side of the housing 5 by screws, nuts, spring washers, flat washers and elastic washers. The USB interface 4 can update and add new types of sensor data to the database from the outside at any time.

Claims

1. A portable piezoelectric vibration sensor detection device, characterized in that: It includes a shell, the surface of which is provided with a BNC connector, a display screen, a control keyboard and a USB interface, and the inside of the shell is provided with a circuit board assembly and a power supply module, the circuit board assembly is respectively connected to the BNC connector, the display screen, the control keyboard and the USB interface, the power supply module is respectively connected to the control keyboard, the display screen, the circuit board assembly and the USB interface and supplies power to them, the circuit board assembly includes a single-chip microcomputer module, the single-chip microcomputer module is connected to the BNC connector through a sensor detection front-end circuit module, is connected to the USB communication power supply interface through a UART to USB module, is connected to the power module through a power system module, is connected to the control keyboard through a keyboard module, is connected to the display screen through an LED drive interface module, and the USB communication power supply interface module is connected to the USB interface.

2. A portable piezoelectric vibration sensor detection device according to claim 1, characterized in that: The power module is a lithium battery module.

3. The portable piezoelectric vibration sensor detection device according to claim 1, characterized in that: The BNC connector, display screen, control keyboard, USB interface, circuit board assembly and power supply module are connected to each other through twisted-pair shielded cables.

4. The portable piezoelectric vibration sensor detection device according to claim 1, characterized in that: The BNC connector is detachably mounted on the top surface of the housing via a locking buckle.

5. The portable piezoelectric vibration sensor detection device according to claim 1, characterized in that: The display screen is detachably mounted on the front side of the housing via a locking buckle.

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