Intelligent wireless temperature vibration detection device

Abstract

The utility model relates to an intelligent wireless temperature vibration detection device. Comprising a power supply module, a three-axis acceleration sensor used for detecting x-axis vibration data and y-axis vibration data of mechanical equipment, a data piezoelectric acceleration sensor used for detecting z-axis vibration of the mechanical equipment, an analog-to-digital conversion circuit module, a temperature detection circuit module, a wireless communication controller and three signal conditioning circuits. The three-axis acceleration sensor, the piezoelectric acceleration sensor, the analog-to-digital conversion circuit module and the wireless communication controller are electrically connected with the power module, and the x-axis data output end and the y-axis data output end of the three-axis acceleration sensor and the piezoelectric acceleration sensor are connected with one signal conditioning circuit in a one-to-one correspondence mode. The three signal conditioning circuits are electrically connected with the wireless communication controller through the analog-to-digital conversion circuit module, and the temperature detection circuit module is electrically connected with the wireless communication controller. According to the utility model, the temperature and vibration conditions of equipment can be detected more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature and vibration measurement technical field especially, relates to an intelligent wireless temperature vibration detection device. BACKGROUND

[0002] The main role of temperature vibration detection device is real time monitoring the temperature and vibration situation of mechanical equipment, through accurate judgment mechanical equipment whether there is unbalance, loosening, wear and tear etc.

[0003] The existing temperature vibration detection device is mostly through triaxial acceleration sensor to the X axis vibration situation and y axis vibration situation along the horizontal direction of mechanical equipment and the z axis vibration situation perpendicular to the horizontal direction detection, this kind of mode is not accurate enough for the detection of z axis axial vibration, and the isolation between x axis and y axis and z axis three axial directions can not be good, and can cause signal crosstalk. UTILITY MODEL CONTENT

[0004] Therefore, in view of the above problems, the utility model provides an intelligent wireless temperature vibration detection device, which can more accurately detect the temperature and vibration of the equipment.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An intelligent wireless temperature vibration detection device, comprising a power module, a triaxial acceleration sensor for detecting mechanical equipment x axis vibration data and y axis vibration data, a piezoelectric acceleration sensor for detecting mechanical equipment z axis vibration data, an analog-digital conversion circuit module, a temperature detection circuit module, a wireless communication controller and a three-way signal conditioning circuit;

[0007] The triaxial acceleration sensor, piezoelectric acceleration sensor, analog-digital conversion circuit module and wireless communication controller are electrically connected with the power module respectively, the x axis data output end, y axis data output end of the triaxial acceleration sensor and piezoelectric acceleration sensor are respectively one-to-one connected with a signal conditioning circuit, and the three-way signal conditioning circuit is electrically connected with the wireless communication controller through the analog-digital conversion circuit module respectively, and the temperature detection circuit module is electrically connected with the wireless communication controller.

[0008] Further, the signal conditioning circuit comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 and differential operational amplifier U1, and the differential operational amplifier U1 adopts THS4561 IDGKR chip.

[0009] The first end of the resistor R1 is a power input end, the second end of the resistor R1 is electrically connected with the first end of the resistor R3, the first end of the resistor R4 and the first end of the capacitor C1 respectively, the second end of the resistor R3 is electrically connected with the IN+ end of the differential operational amplifier U1 and the first end of the capacitor C2 respectively, the second end of the capacitor C2 is electrically connected with the second end of the resistor R4, the first end of the resistor R7 and the OUT- end of the differential operational amplifier U1 respectively, the second end of the resistor R9 is grounded through the capacitor C4, the second end of the resistor R7 is also electrically connected with the first end of the resistor R8 and the first end of the capacitor C5 respectively, the first end of the resistor R2 is a signal input end, the second end of the resistor R2 is electrically connected with the second end of the capacitor C2, the first end of the resistor R5 and the first end of the resistor R6 respectively, the second end of the resistor R5 is electrically connected with the IN- end of the differential operational amplifier U1 and the first end of the capacitor C3 respectively, the second end of the capacitor C3 is electrically connected with the OUT+ end of the differential operational amplifier U1, the second end of the resistor R6 and the first end of the resistor R9 respectively, the second end of the resistor R9 is grounded through the capacitor C6, the second end of the resistor R9 is also electrically connected with the first end of the resistor R9 and the second end of the capacitor C5 respectively, the second end of the resistor R8 and the second end of the resistor R10 constitute a signal output end;

[0010] The power input end is electrically connected with a power module, the x-axis data output end, the y-axis data output end and the piezoelectric acceleration sensor of the three-axis acceleration sensor are respectively connected with the signal input end of one signal conditioning circuit, and the signal output ends of the three signal conditioning circuits are electrically connected with the wireless communication controller through an analog-to-digital conversion circuit module.

[0011] Further, the temperature detection circuit module comprises a resistor R11, an NTC resistor, a capacitor C7, a capacitor C8 and an operational amplifier U2, and the operational amplifier U2 adopts an OPA313 IDBVR chip.

[0012] The first end of the resistor R11 is electrically connected with the power module, the second end of the resistor R11 is electrically connected with the first end of the NTC resistor and the non-inverting terminal of the operational amplifier U2, the second end of the NTC resistor is grounded, the positive power supply end of the operational amplifier U2 is grounded through the capacitor C8, the capacitor C7 and the capacitor C8 are connected in parallel, the ground terminal of the operational amplifier U2 is grounded, the inverting terminal of the operational amplifier U2 is electrically connected with the output terminal of the operational amplifier U2, and the output terminal of the operational amplifier U2 is electrically connected with the analog-to-digital conversion circuit module.

[0013] Further, the wireless communication controller adopts any one of a Bluetooth communication module, a WiFi communication module, a Zigbee communication module, a LoRa communication module and an NB-Iot communication module.

[0014] By adopting the foregoing technical solutions, the intelligent wireless temperature vibration detection device has the following advantages:

[0015] The intelligent wireless temperature vibration detection device detects the z-axis vibration data of the mechanical equipment by using the piezoelectric acceleration sensor, has high sensitivity, and detects the x-axis vibration data and the y-axis vibration data of the mechanical equipment by using the three-axis acceleration sensor, can work in a wide frequency range, can maintain good performance from low frequency to high frequency, and reduces signal crosstalk of the z-axis vibration data and the x-axis vibration data and the y-axis vibration data. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a circuit connection diagram of the utility model.

[0017] Figure 2 is a circuit principle diagram of the signal conditioning circuit of the utility model.

[0018] Figure 3 is a circuit principle diagram of the temperature detection circuit module of the utility model. DETAILED DESCRIPTION

[0019] The utility model will be further explained in combination with the drawings and the specific implementation.

[0020] Reference Figure 1 , Figure 2 and Figure 3 The embodiment provides an intelligent wireless temperature vibration detection device for detecting temperature and vibration data of a mechanical equipment.

[0021] Mechanical equipment x-axis vibration data and y-axis vibration data refer to two groups of vibration data along the horizontal direction of the mechanical equipment.

[0022] Among them,

[0023] The triaxial acceleration sensor 2, the piezoelectric acceleration sensor 3, the analog-to-digital conversion circuit module 5, the wireless communication controller 6, and the temperature detection circuit module 7 are electrically connected with the power module 1 respectively, and the power module 1 supplies power for the triaxial acceleration sensor 2, the piezoelectric acceleration sensor 3, the analog-to-digital conversion circuit module 5, the wireless communication controller 6, and the temperature detection circuit module 7 respectively.

[0024] The x-axis data output end, the y-axis data output end of the triaxial acceleration sensor 2, and the piezoelectric acceleration sensor 3 are connected with one-way signal conditioning circuit 4 respectively, and the three-way signal conditioning circuit 4 is electrically connected with the analog-to-digital conversion circuit module 5 and the wireless communication controller 6 respectively, specifically:

[0025] The signal conditioning circuit includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, and differential operational amplifier U1, and the differential operational amplifier U1 adopts THS4561 IDGKR chip;

[0026] The first end of the resistance R1 is a power input end, the second end of the resistance R1 is electrically connected with the first end of the resistance R3, the first end of the resistance R4, and the first end of the capacitor C1 respectively, the second end of the resistance R3 is electrically connected with the I N+ end of the differential operational amplifier U1 and the first end of the capacitor C2 respectively, the second end of the capacitor C2 is electrically connected with the second end of the resistance R4, the first end of the resistance R7, and the OUT- end of the differential operational amplifier U1 respectively, the second end of the resistance R9 is grounded through the capacitor C4, the second end of the resistance R7 is also electrically connected with the first end of the resistance R8 and the first end of the capacitor C5 respectively, the first end of the resistance R2 is a signal input end, the second end of the resistance R2 is electrically connected with the second end of the capacitor C2, the first end of the resistance R5, and the first end of the resistance R6 respectively, the second end of the resistance R5 is electrically connected with the I N- end of the differential operational amplifier U1 and the first end of the capacitor C3 respectively, the second end of the capacitor C3 is electrically connected with the OUT+ end of the differential operational amplifier U1, the second end of the resistance R6, and the first end of the resistance R9 respectively, the second end of the resistance R9 is grounded through the capacitor C6, the second end of the resistance R9 is also electrically connected with the first end of the resistance R9 and the second end of the capacitor C5 respectively, and the second end of the resistance R8 and the second end of the resistance R10 constitute a signal output end;

[0027] The power module 1 outputs a voltage, which is input to the differential operational amplifier U1 through the resistor R1, thereby providing a bias voltage for the differential operational amplifier U1, avoiding the introduction of noise, and having strong resistance to common-mode interference, thereby improving the signal-to-noise ratio, which is particularly important for long-distance transmission, because in long-distance transmission, the signal is easily affected by various noises. The resistors R2 and R5 can configure the amplification gain of the differential operational amplifier U1. The capacitors C2 and C3, the resistor R6, and the resistor R9 constitute a low-pass filter, which can filter out high-frequency signal interference.

[0028] The power input end is electrically connected with the power module 1, the x-axis data output end, the y-axis data output end, and the piezoelectric acceleration sensor 3 of the three-axis acceleration sensor 2 are respectively connected with the signal input end of one of the three signal conditioning circuits 4, and the signal output ends of the three signal conditioning circuits 4 are respectively electrically connected with the analog-to-digital conversion circuit module 5.

[0029] The temperature detection circuit module 7 is electrically connected with the wireless communication controller 6, and specifically:

[0030] The temperature detection circuit module 7 includes the resistor R11, the NTC resistor, the capacitor C7, the capacitor C8, and the operational amplifier U2, and the operational amplifier U2 adopts an OPA313 IDBVR chip.

[0031] The first end of the resistor R11 is electrically connected with the power module 1, the second end of the resistor R11 is electrically connected with the first end of the NTC resistor and the non-inverting terminal of the operational amplifier U2, the second end of the NTC resistor is grounded, the positive power supply end of the operational amplifier U2 is grounded through the capacitor C8, the capacitor C7 and the capacitor C8 are connected in parallel, the ground end of the operational amplifier U2 is grounded, the inverting terminal of the operational amplifier U2 is electrically connected with the output end of the operational amplifier U2, and the output end of the operational amplifier U2 is electrically connected with the analog-to-digital conversion circuit module 5.

[0032] The NTC resistor can change the resistance value according to the temperature change, and is used for detecting the temperature signal of the mechanical equipment, the NTC resistor and the resistor R11 can divide the voltage output by the power module 1 and input the operational amplifier U2, thereby constituting a following voltage, converting the high-impedance temperature signal into a low-impedance temperature signal, and making the sampling of the analog-to-digital conversion circuit module 5 more accurate. The capacitors C7 and C8 perform power coupling filtering processing for the operational amplifier U2.

[0033] The wireless communication controller 6 adopts any one of a Bluetooth communication module, a WiFi communication module, a Zigbee communication module, a LoRa communication module, and an NB-Iot communication module.

[0034] The intelligent wireless temperature vibration detection device detects the z-axis vibration data of the mechanical equipment through the piezoelectric acceleration sensor 3, has high sensitivity, and detects the x-axis vibration data and the y-axis vibration data of the mechanical equipment through the three-axis acceleration sensor 2, can work in a wide frequency range, can maintain good performance from low frequency to high frequency, and reduces signal crosstalk of the z-axis vibration data and the x-axis vibration data and the y-axis vibration data detection.

[0035] Although the utility model is specifically shown and introduced in combination with the preferred embodiment, those skilled in the art should understand that various changes can be made to the utility model in form and detail without departing from the spirit and scope of the utility model defined in the appended claims, and all are within the protection scope of the utility model.

Claims

1. An intelligent wireless temperature and vibration detection device, characterized in that: The power module, the three-axis acceleration sensor for detecting the x-axis vibration data and the y-axis vibration data of the mechanical equipment, the piezoelectric acceleration sensor for detecting the z-axis vibration data of the mechanical equipment, the analog-digital conversion circuit module, the temperature detection circuit module, the wireless communication controller and the three-way signal conditioning circuit are included. The three-axis acceleration sensor, the piezoelectric acceleration sensor, the analog-digital conversion circuit module and the wireless communication controller are electrically connected with the power module respectively, the x-axis data output end, the y-axis data output end of the three-axis acceleration sensor and the piezoelectric acceleration sensor are connected with one-way signal conditioning circuit one by one respectively, the three-way signal conditioning circuit is electrically connected with the wireless communication controller through the analog-digital conversion circuit module respectively, and the temperature detection circuit module is electrically connected with the wireless communication controller.

2. The intelligent wireless temperature and vibration detection device of claim 1, wherein: The signal conditioning circuit includes resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, capacitors C1, C2, C3, C4, C5, C6 and a differential operational amplifier U1, and the differential operational amplifier U1 adopts a THS4561 IDGKR chip. The first end of the resistor R1 is a power input end, the second end of the resistor R1 is electrically connected with the first end of the resistor R3, the first end of the resistor R4 and the first end of the capacitor C1 respectively, the second end of the resistor R3 is electrically connected with the IN+ end of the differential operational amplifier U1 and the first end of the capacitor C2 respectively, the second end of the capacitor C2 is electrically connected with the second end of the resistor R4, the first end of the resistor R7 and the OUT- end of the differential operational amplifier U1 respectively, the second end of the resistor R9 is grounded through the capacitor C4, the second end of the resistor R7 is also electrically connected with the first end of the resistor R8 and the first end of the capacitor C5 respectively, the first end of the resistor R2 is a signal input end, the second end of the resistor R2 is electrically connected with the second end of the capacitor C2, the first end of the resistor R5 and the first end of the resistor R6 respectively, the second end of the resistor R5 is electrically connected with the IN- end of the differential operational amplifier U1 and the first end of the capacitor C3 respectively, the second end of the capacitor C3 is electrically connected with the OUT+ end of the differential operational amplifier U1, the second end of the resistor R6 and the first end of the resistor R9 respectively, the second end of the resistor R9 is grounded through the capacitor C6, the second end of the resistor R9 is also electrically connected with the first end of the resistor R9 and the second end of the capacitor C5 respectively, and the second end of the resistor R8 and the second end of the resistor R10 constitute a signal output end. The power input end is electrically connected with the power module, the signal input end of one-way signal conditioning circuit is connected with the x-axis data output end, the y-axis data output end of the three-axis acceleration sensor and the piezoelectric acceleration sensor one by one respectively, and the signal output end of the three-way signal conditioning circuit is electrically connected with the wireless communication controller through the analog-digital conversion circuit module respectively.

3. The intelligent wireless temperature and vibration detection device of claim 1, wherein: The temperature detection circuit module comprises a resistor R11, an NTC resistor, a capacitor C7, a capacitor C8 and an operational amplifier U2 which adopts an OPA313 IDBVR chip; A first end of the resistor R11 is electrically connected with a power module, a second end of the resistor R11 is electrically connected with a first end of the NTC resistor and a non-inverting terminal of the operational amplifier U2, a second end of the NTC resistor is grounded, a positive power supply terminal of the operational amplifier U2 is grounded through the capacitor C8, the capacitor C7 is connected with the capacitor C8 in parallel, a grounding terminal of the operational amplifier U2 is grounded, an inverting terminal of the operational amplifier U2 is electrically connected with an output terminal of the operational amplifier U2, and the output terminal of the operational amplifier U2 is electrically connected with an analog-digital conversion circuit module.

4. The intelligent wireless temperature and vibration detection device according to claim 1 or 2 or 3, characterized in that: The wireless communication controller adopts any one of a Bluetooth communication module, a WiFi communication module, a zigbee communication module, a LoRa communication module and an NB-Iot communication module.

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