Monitoring device for fracturing vehicle group

Abstract

The present application provides a monitoring device for a fracturing vehicle group, which belongs to the field of fracturing technology. The device includes: a first sensor, a second sensor, a first signal receiver, a second signal receiver, a first signal converter, a second signal converter, a ZigBee signal transmitter, a ZigBee signal receiver and a display panel; the input end of the first signal converter is connected to the first sensor through the first signal receiver, and is connected to the input end of the second sensor through the second signal receiver, the output end of the first signal converter is connected to the ZigBee signal transmitter, and the ZigBee signal receiver is connected to the display panel through the second signal converter. Since the first operating parameter and the second operating parameter are wirelessly transmitted to the display panel through the ZigBee signal transmitter and the ZigBee signal receiver, and the stability of the ZigBee signal is strong, the stability of the operating parameters transmitted by the monitoring device can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of fracturing, and in particular to a monitoring device for a fracturing vehicle group. Background Art

[0002] At present, hydraulic fracturing through a fracturing vehicle group is an important technology to increase oil well production. The pressure vehicle group includes a fracturing pump truck and a sand mixing truck. In the process of hydraulic fracturing through a fracturing vehicle group, in order to meet the pressure requirements of hydraulic fracturing, it is necessary to obtain the operating parameters of the fracturing pump truck and the sand mixing truck through the monitoring device of the fracturing vehicle group.

[0003] In the related art, the monitoring device of the fracturing vehicle group includes a first sensor, a second sensor, a cable and a display panel; the first sensor and the second sensor are electrically connected to the display panel through the cable respectively. The display panel is used to receive and display the operating parameters of the fracturing pump truck detected by the first sensor, and is used to receive and display the operating parameters of the sand blender detected by the second sensor.

[0004] However, in the process of obtaining the operating parameters of the fracturing vehicle group through the monitoring device, when the cable joint becomes loose or the cable is broken by external forces, it will affect the normal transmission of the operating parameters, so the stability of the operating parameters transmitted by the monitoring device is poor. Summary of the invention

[0005] The embodiment of the present application provides a monitoring device for a fracturing vehicle group, which can improve the stability of the transmission of operating parameters by the monitoring device. The technical solution is as follows:

[0006] The present application provides a monitoring device for a fracturing vehicle group, the monitoring device comprising: a first sensor, a second sensor, a first signal receiver, a second signal receiver, a first signal converter, a second signal converter, a ZigBee signal transmitter, a ZigBee signal receiver and a display panel;

[0007] The input end of the first signal converter is electrically connected to the first sensor through the first signal receiver, and is electrically connected to the input end of the second sensor through the second signal receiver, the output end of the first signal converter is electrically connected to the ZigBee signal transmitter, and the ZigBee signal receiver is electrically connected to the display panel through the second signal converter;

[0008] The first signal receiver is used to convert the first operating parameter of the fracturing pump truck obtained by the first sensor into a first electrical signal, the second signal receiver is used to convert the second operating parameter of the sand blender truck obtained by the second sensor into a second electrical signal, the first signal converter is used to convert the first electrical signal and the second electrical signal into a first ZigBee signal and a second ZigBee signal respectively, and the ZigBee signal transmitter is used to transmit the first ZigBee signal and the second ZigBee signal;

[0009] The second signal converter is used to convert the first ZigBee signal and the second ZigBee signal received by the ZigBee signal receiver into the first operating parameter and the second operating parameter, and the display panel is used to display the first operating parameter and the second operating parameter.

[0010] In a possible implementation, the first signal receiver includes a first conversion module, a first relay module, a first processing module, a second relay module and a first CAN transceiver module;

[0011] The input end of the first conversion module is electrically connected to the output end of the first sensor, the output end of the first conversion module is electrically connected to the first port of the first processing module through the first relay module, the second port of the first processing module is electrically connected to the input end of the first CAN transceiver module through the second relay module, and the output end of the first CAN transceiver module is electrically connected to the input end of the first signal converter;

[0012] The first conversion module is used to convert the first operating parameter into a first digital signal, the first relay module is used to convert the first digital signal into a first CAN optical signal, the first processing module is used to remove noise in the first CAN optical signal to obtain a second CAN optical signal, the second relay module is used to convert the second CAN optical signal into a second digital signal, and the first CAN transceiver module is used to transmit the second digital signal to the first signal converter.

[0013] In another possible implementation, the second signal receiver includes a second conversion module, a third relay module, a second processing module, a fourth relay module, and a second CAN transceiver module;

[0014] The input end of the second conversion module is electrically connected to the output end of the second sensor, the output end of the second conversion module is electrically connected to the first port of the second processing module through the third relay module, the second port of the second processing module is electrically connected to the input end of the second CAN transceiver module through the fourth relay module, and the output end of the second CAN transceiver module is electrically connected to the input end of the first signal converter;

[0015] The second conversion module is used to convert the second operating parameter into a third digital signal, the third relay module is used to convert the third digital signal into a third CAN optical signal, the second processing module is used to remove noise in the third CAN optical signal to obtain a fourth CAN optical signal, the fourth relay module is used to convert the fourth CAN optical signal into a fourth digital signal, and the second CAN transceiver module is used to transmit the fourth digital signal to the first signal converter.

[0016] In another possible implementation, the monitoring device further includes a first protection module and a second protection module;

[0017] The first protection module is electrically connected to the input end of the first signal receiver, and the second protection module is electrically connected to the input end of the second signal receiver;

[0018] The first protection module is used to stabilize the voltage and current of the first signal receiver, and the second protection module is used to stabilize the voltage and current of the second signal receiver.

[0019] In another possible implementation, the first protection module includes a first TVS and a first PTC thermistor, and the second protection module includes a second TVS and a second PTC thermistor;

[0020] The first TVS is electrically connected to the input terminal of the first signal receiver through the first PTC thermistor, and the second TVS and the second PTC thermistor are electrically connected to the input terminal of the second signal receiver through the second PTC thermistor;

[0021] The first TVS is used to stabilize the voltage of the first signal receiver, and the first PTC thermistor is used to stabilize the current of the first signal receiver; the second TVS is used to stabilize the voltage of the second signal receiver, and the second PTC thermistor is used to stabilize the current of the second signal receiver.

[0022] In another possible implementation, the monitoring device further includes a first anti-interference device and a second anti-interference device;

[0023] The first signal receiver is electrically connected to a ground wire through the first anti-interference device, and the second signal receiver is electrically connected to the ground wire through the second anti-interference device;

[0024] The first anti-interference device is used to prevent electromagnetic radiation from interfering with a first operating parameter received by the first signal receiver, and the second anti-interference device is used to prevent electromagnetic radiation from interfering with a second operating parameter received by the second signal receiver.

[0025] In another possible implementation, the first anti-interference device includes a first capacitor and a second capacitor, and the second anti-interference device includes a third capacitor and a fourth capacitor;

[0026] The high level end of the first signal receiver is electrically connected to the ground line through the first capacitor, and the low level end of the first signal receiver is electrically connected to the ground line through the second capacitor;

[0027] The high level end of the second signal receiver is electrically connected to the ground line through the third capacitor, and the low level end of the second signal receiver is electrically connected to the ground line through the fourth capacitor.

[0028] In another possible implementation, the monitoring device further includes a first controller, a first potentiometer, a second controller, and a second potentiometer;

[0029] The output end of the first signal receiver is electrically connected to the input end of the first potentiometer through the first controller, and the output end of the first potentiometer is used to be electrically connected to the operating circuit of the fracturing pump truck; the output end of the second signal receiver is electrically connected to the input end of the second potentiometer through the second controller, and the output end of the second potentiometer is used to be electrically connected to the operating circuit of the sand blending truck;

[0030] The first controller is used to adjust the resistance of the sliding end of the first potentiometer, thereby changing the operating voltage of the fracturing pump truck; the second controller is used to adjust the resistance of the sliding end of the second potentiometer, thereby changing the operating voltage of the sand blending truck.

[0031] In another possible implementation, the monitoring device further includes a ZigBee network router;

[0032] The ZigBee signal transmitter is communicatively connected with the ZigBee signal receiver via the ZigBee network router;

[0033] The ZigBee network router is used to receive the first ZigBee signal and the second ZigBee signal transmitted by the ZigBee signal transmitter, and is used to transmit the first ZigBee signal and the second ZigBee signal to the ZigBee signal receiver.

[0034] In another possible implementation, the first sensor includes a first engine sensor, a transmission box sensor, and a plunger pump sensor; the second sensor includes a second engine sensor, a sand conveying auger sensor, a mixing tank sensor, and a centrifugal pump sensor.

[0035] The beneficial effects of the technical solution provided by the embodiments of the present application include at least:

[0036] An embodiment of the present application provides a monitoring device for a fracturing vehicle group. Since the monitoring device transmits the first operating parameter of the first sensor and the second operating parameter of the second sensor to the display panel through the ZigBee signal transmitter and the ZigBee signal receiver, and the transmission between the ZigBee signal transmitter and the ZigBee signal receiver is wireless, the process of wired electrical connection such as cables is omitted, and faults such as loose joints are avoided, thereby improving the stability of the transmission of the operating parameters of the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 is a structural schematic diagram of a monitoring device for a fracturing vehicle group according to an exemplary embodiment;

[0039] Figure 2 is a schematic structural diagram of a first signal receiver according to an exemplary embodiment;

[0040] Figure 3 is a schematic structural diagram of a second signal receiver according to an exemplary embodiment;

[0041] Figure 4 is a schematic diagram showing a connection between a first signal receiver and a first protection module according to an exemplary embodiment;

[0042] Figure 5 is a schematic diagram showing a connection between a second signal receiver and a second protection module according to an exemplary embodiment;

[0043] Figure 6 It is a schematic structural diagram of a monitoring device for a fracturing vehicle group according to an exemplary embodiment.

[0044] Reference numerals:

[0045] 11. First Sensor

[0046] 12 Second sensor

[0047] 13. First signal receiver

[0048] 131 First conversion module

[0049] 132 First relay module

[0050] 133 First processing module

[0051] 134 Second relay module

[0052] 135 First CAN transceiver module

[0053] 14 Second signal receiver

[0054] 141 Second conversion module

[0055] 142 Third relay module

[0056] 143 Second processing module

[0057] 144 Fourth relay module

[0058] 145 Second CAN transceiver module

[0059] 15. First signal converter

[0060] 16 Second signal converter

[0061] 17 ZigBee signal transmitter

[0062] 18 ZigBee signal receiver

[0063] 19 Display Panel

[0064] 20 ZigBee network router

[0065] 21 First protection module

[0066] 22 Second protection module

[0067] 23 The first anti-interference device

[0068] 24 Second anti-interference device

[0069] 25 First Controller

[0070] 26 First potentiometer

[0071] 27 Second Controller

[0072] 28 Second potentiometer DETAILED DESCRIPTION

[0073] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0074] Figure 1 Schematic diagram of the structure of a monitoring device for a fracturing vehicle group provided by the present application. Figure 1 The monitoring device includes: a first sensor 11, a second sensor 12, a first signal receiver 13, a second signal receiver 14, a first signal converter 15, a second signal converter 16, a ZigBee (ZigBee, Purple Bee) signal transmitter 17, a ZigBee signal receiver 18 and a display panel 19;

[0075] The input end of the first signal converter 15 is electrically connected to the first sensor 11 through the first signal receiver 13, and is electrically connected to the input end of the second sensor 12 through the second signal receiver 14. The output end of the first signal converter 15 is electrically connected to the ZigBee signal transmitter 17, and the ZigBee signal receiver 18 is electrically connected to the display panel 19 through the second signal converter 16.

[0076] A first signal receiver 13 is used to convert the first operating parameter of the fracturing pump truck obtained by the first sensor 11 into a first electrical signal. A second signal receiver 14 is used to convert the second operating parameter of the sand blender truck obtained by the second sensor 12 into a second electrical signal. A first signal converter 15 is used to convert the first electrical signal and the second electrical signal into a first ZigBee signal and a second ZigBee signal, respectively. A ZigBee signal transmitter 17 is used to transmit the first ZigBee signal and the second ZigBee signal.

[0077] The second signal converter 16 is used to convert the first ZigBee signal and the second ZigBee signal received by the ZigBee signal receiver 18 into the first operating parameter and the second operating parameter. The display panel 19 is used to display the first operating parameter and the second operating parameter.

[0078] The embodiment of the present application provides a monitoring device for a fracturing vehicle group. Since the monitoring device transmits the first operating parameter of the first sensor 11 and the second operating parameter of the second sensor 12 to the display panel 19 through the ZigBee signal transmitter 17 and the ZigBee signal receiver 18, and the transmission between the ZigBee signal transmitter 17 and the ZigBee signal receiver 18 is wireless, the process of wired electrical connection such as cables is omitted, and the occurrence of loose joints and other faults is avoided, thereby improving the stability of the transmission of the operating parameters of the monitoring device.

[0079] Introduction to the first sensor 11: The first sensor 11 is used to obtain a first operating parameter of a fracturing pump truck in a fracturing vehicle group.

[0080] In a possible implementation, the fracturing pump vehicle includes a first engine, a transmission box and a plunger pump; the first sensor 11 includes a first engine sensor, a transmission box sensor and a plunger pump sensor. The first operating parameters include first engine operating parameters, transmission box operating parameters and plunger pump operating parameters.

[0081] Optionally, the first engine operating parameter includes a rotation speed of the first engine. The first engine sensor includes a first rotation speed sensor, and the first rotation speed sensor is used to detect the rotation speed of the first engine.

[0082] Optionally, the transmission box operating parameters include the transmission box oil temperature and the transmission box oil pressure. The transmission box sensor includes a first temperature sensor and a first pressure sensor; the first temperature sensor is used to detect the transmission box oil temperature, and the first pressure sensor is used to detect the transmission box oil pressure.

[0083] Optionally, the plunger pump operating parameters include the oil temperature of the plunger pump, the oil pressure of the plunger pump and the displacement of the plunger pump. The plunger pump sensor includes a second temperature sensor, a second pressure sensor and a first displacement sensor; the second temperature sensor is used to detect the oil temperature of the plunger pump, the second pressure sensor is used to detect the oil pressure of the plunger pump, and the first displacement sensor is used to detect the displacement of the plunger pump.

[0084] Introduction to the second sensor 12: The second sensor 12 is used to obtain a second operating parameter of the sand blender in the fracturing vehicle group.

[0085] In a possible implementation, the sand blender includes a second engine, a sand conveying auger, a stirring tank and a centrifugal pump. The second sensor 12 includes a second engine sensor, a sand conveying auger sensor, a stirring tank sensor and a centrifugal pump sensor. The second operating parameters include second engine operating parameters, sand conveying auger operating parameters, stirring tank operating parameters and centrifugal pump operating parameters.

[0086] Optionally, the second engine operating parameter includes a rotation speed of the second engine. The second engine sensor includes a second rotation speed sensor, and the second rotation speed sensor is used to detect the rotation speed of the second engine.

[0087] Optionally, the sand conveying auger operation parameter includes the rotation speed of the sand conveying auger. The sand conveying auger sensor includes a third rotation speed sensor, and the third rotation speed sensor is used to detect the rotation speed of the sand conveying auger.

[0088] Optionally, the operating parameters of the stirring tank include the rotation speed of the liquid adding pump, the rotation speed of the dry adding pump and the liquid level of the stirring tank. The stirring tank sensor includes a fourth rotation speed sensor, a fifth rotation speed sensor and a liquid level sensor. The fourth rotation speed sensor is used to detect the rotation speed of the liquid adding pump, the fifth rotation speed sensor is used to detect the rotation speed of the dry adding pump, and the liquid level sensor is used to detect the liquid level of the stirring tank.

[0089] Optionally, the centrifugal pump operating parameters include suction centrifugal pump operating parameters and discharge centrifugal pump operating parameters. The centrifugal pump sensor includes a second displacement sensor and a third displacement sensor, the second displacement sensor is used to detect the suction displacement of the suction centrifugal pump, and the third displacement sensor is used to detect the discharge displacement of the discharge centrifugal pump.

[0090] Introduction of the first signal receiver 13: The first sensor 11 is electrically connected to the input end of the first signal converter 15 via the first signal receiver 13. The first signal receiver 13 is used to convert the first operating parameter into a first electrical signal.

[0091] In one possible implementation, see Figure 2 The first signal receiver 13 includes a first conversion module 131, a first relay module 132, a first processing module 133, a second relay module 134 and a first CAN (Controller Area Network) transceiver module 135; the input end of the first conversion module 131 is electrically connected to the output end of the first sensor 11, the output end of the first conversion module 131 is electrically connected to the first port of the first processing module 133 through the first relay module 132, the second port of the first processing module 133 is electrically connected to the input end of the first CAN transceiver module 135 through the second relay module 134, and the output end of the first CAN transceiver module 135 is electrically connected to the input end of the first signal converter 15.

[0092] The first conversion module 131 is used to convert the first operating parameter into a first digital signal, the first relay module 132 is used to convert the first digital signal into a first CAN optical signal, the first processing module 133 is used to remove noise in the first CAN optical signal to obtain a second CAN optical signal, the second relay module 134 is used to convert the second CAN optical signal into a second digital signal, and the first CAN transceiver module 135 is used to transmit the second digital signal to the first signal converter 15.

[0093] Optionally, the first conversion module 131 includes a first A / D conversion circuit, the first relay module 132 includes a first CAN fiber optic repeater, the first processing module 133 includes a first microprocessor and a first CAN controller, the second relay module 134 includes a second CAN fiber optic repeater, and the first CAN transceiver module 135 includes a first CAN transceiver.

[0094] Introduction of the second signal receiver 14: The second sensor 12 is electrically connected to the input end of the first signal converter 15 via the second signal receiver 14. The second signal receiver 14 is used to convert the second operating parameter into a second electrical signal.

[0095] In one possible implementation, see Figure 3 The second signal receiver 14 includes a second conversion module 141, a third relay module 142, a second processing module 143, a fourth relay module 144 and a second CAN transceiver module 145; the input end of the second conversion module 141 is electrically connected to the output end of the second sensor 12, the output end of the second conversion module 141 is electrically connected to the first port of the second processing module 143 through the third relay module 142, the second port of the second processing module 143 is electrically connected to the input end of the second CAN transceiver module 145 through the fourth relay module 144, and the output end of the second CAN transceiver module 145 is electrically connected to the input end of the first signal converter 15.

[0096] The second conversion module 141 is used to convert the second operating parameter into a third digital signal, the third relay module 142 is used to convert the third digital signal into a third CAN optical signal, the second processing module 143 is used to remove noise in the third CAN optical signal to obtain a fourth CAN optical signal, the fourth relay module 144 is used to convert the fourth CAN optical signal into a fourth digital signal, and the second CAN transceiver module 145 is used to transmit the fourth digital signal to the first signal converter 15.

[0097] Optionally, the second conversion module 141 includes a second A / D conversion circuit, the third relay module 142 includes a third CAN fiber optic repeater, the second processing module 143 includes a second microprocessor and a second CAN controller, the fourth relay module 144 includes a fourth CAN fiber optic repeater, and the second CAN transceiver module 145 includes a second CAN transceiver.

[0098] Introduction of the first signal converter 15: The output end of the first signal converter 15 is electrically connected to the ZigBee signal transmitter 17. The first signal converter 15 is used to convert the first electrical signal into a first ZigBee signal and convert the second electrical signal into a second ZigBee signal.

[0099] In a possible implementation, the first signal converter 15 includes a third CAN transceiver module, a third processing module and a level conversion module; the input end of the third CAN transceiver module is electrically connected to the first CAN transceiver module 135 and the second CAN transceiver module 145 through the CAN bus, and the output end of the third CAN transceiver module is electrically connected to the level converter through the third processor;

[0100] The third CAN transceiver module is used to receive the second digital signal and the fourth digital signal. The third processor is used to remove noise in the second digital signal and the fourth digital signal. The level converter is used to convert the second digital signal into the first ZigBee signal and convert the fourth digital signal into the second ZigBee signal.

[0101] It should be noted that the first digital signal, the first CAN optical signal, the second CAN optical signal, the second digital signal and the first ZigBee signal carry the first operating parameter acquired by the first sensor 11. The third digital signal, the third CAN optical signal, the fourth CAN optical signal, the fourth digital signal and the second ZigBee signal carry the second operating parameter acquired by the second sensor 12.

[0102] In one possible implementation, see Figure 4 and Figure 5 The monitoring device also includes a first protection module 21 and a second protection module 22; the first protection module 21 is electrically connected to the input end of the first signal receiver 13, and the second protection module 22 is electrically connected to the input end of the second signal receiver 14; the first protection module 21 is used to stabilize the voltage and current of the first signal receiver 13, and the second protection module 22 is used to stabilize the voltage and current of the second signal receiver 14.

[0103] In a possible implementation, the first protection module 21 includes a first TVS (Transient Voltage Suppressor) and a first PTC (Positive Temperature Coefficient) thermistor, and the second protection module 22 includes a second TVS and a second PTC thermistor; the first TVS is electrically connected to the input end of the first receiving module through the first PTC thermistor, and the second TVS is electrically connected to the input end of the second receiving module through the second PTC thermistor; the first TVS is used to stabilize the voltage of the first receiving module, and the first PTC thermistor is used to stabilize the current of the first receiving module; the second TVS is used to stabilize the voltage of the second receiving module, and the second PTC thermistor is used to stabilize the current of the second receiving module.

[0104] Another point to note is that Figure 4 and Figure 5 The monitoring device also includes a first anti-interference device 23 and a second anti-interference device 24; the first signal receiver 13 is electrically connected to the ground wire through the first anti-interference device 23, and the second signal receiver 14 is electrically connected to the ground wire through the second anti-interference device 24; the first anti-interference device 23 is used to prevent electromagnetic radiation from interfering with the first operating parameter received by the first signal receiver 13, and the second anti-interference device 24 is used to prevent electromagnetic radiation from interfering with the second operating parameter received by the second signal receiver 14.

[0105] In a possible implementation, the first anti-interference device 23 includes a first capacitor and a second capacitor, and the second anti-interference device 24 includes a third capacitor and a fourth capacitor; the high level end of the first signal receiver 13 is electrically connected to the ground through the first capacitor, and the low level end of the first signal receiver 13 is electrically connected to the ground through the second capacitor; the high level end of the second signal receiver 14 is electrically connected to the ground through the third capacitor, and the low level end of the second signal receiver 14 is electrically connected to the ground through the fourth capacitor.

[0106] The capacitances of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor may be the same or different. Optionally, the capacitances of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor may be any value between 20pf and 40pf, for example, 25pf, 30pf, or 35pf.

[0107] Another point to be explained is that the monitoring device can also adjust the operating parameters of the fracturing pump truck and the operating parameters of the sand blender truck. Figure 4 and Figure 5The monitoring device also includes a first controller 25, a first potentiometer 26, a second controller 27 and a second potentiometer 28; the output end of the first signal receiver 13 is electrically connected to the input end of the first potentiometer 26 through the first controller 25, and the output end of the first potentiometer 26 is used to be electrically connected to the operating circuit of the fracturing pump truck; the output end of the second signal receiver 14 is electrically connected to the input end of the second potentiometer 28 through the second controller 27, and the output end of the second potentiometer 28 is used to be electrically connected to the operating circuit of the sand mixing truck; the first controller 25 is used to adjust the resistance value of the sliding end of the first potentiometer 26, thereby changing the operating voltage of the fracturing pump truck; the second controller 27 is used to adjust the resistance value of the sliding end of the second potentiometer 28, thereby changing the operating voltage of the sand mixing truck.

[0108] In one possible implementation, when the distance between the ZigBee signal transmitter 17 and the ZigBee signal receiver 18 is far, a ZigBee network router 20 may be set between the ZigBee signal transmitter 17 and the ZigBee signal receiver 18 to establish a communication connection between the ZigBee signal transmitter 17 and the ZigBee signal receiver 18 through the ZigBee network router 20.

[0109] Optional, see Figure 6 The monitoring device also includes a ZigBee network router 20; the ZigBee signal transmitter 17 is communicatively connected to the ZigBee signal receiver 18 through the ZigBee network router 20; the ZigBee network router 20 is used to receive the first ZigBee signal and the second ZigBee signal transmitted by the ZigBee signal transmitter 17, and to transmit the first ZigBee signal and the second ZigBee signal to the ZigBee signal receiver 18.

[0110] Introduction of ZigBee signal transmitter 17: ZigBee signal transmitter 17 is electrically connected to the first signal converter 15 and the second signal converter 16 respectively, and is used to receive the first ZigBee signal converted by the first signal converter 15 and the second ZigBee signal converted by the second signal converter 16, and is used to transmit the first ZigBee signal and the second ZigBee signal to the ZigBee signal receiver 18.

[0111] In a possible implementation, the ZigBee signal transmitter 17 is a ZigBee signal transmitting terminal, which can transmit wireless network signals and establish a communication connection with the ZigBee signal receiver 18 through the wireless network signals. Optionally, the ZigBee signal transmitting terminal transmits the first ZigBee signal and the second ZigBee signal to the ZigBee signal receiver 18 wirelessly.

[0112] It should be noted that the number of the fracturing vehicle group can be one or more. When the number of the fracturing vehicle group can be multiple, there are multiple ZigBee signal transmitters 17, and one ZigBee signal transmitter 17 is electrically connected to one fracturing vehicle group.

[0113] Introduction of ZigBee signal receiver 18: ZigBee signal receiver 18 is electrically connected to display panel 19 via a third signal converter. ZigBee signal receiver 18 is used to receive a first ZigBee signal and a second ZigBee signal.

[0114] In a possible implementation, the ZigBee signal receiver 18 is a ZigBee network coordinator, which can receive ZigBee signals transmitted by multiple ZigBee signal transmitting terminals.

[0115] Introduction to the second signal converter 16: The ZigBee signal receiver 18 is electrically connected to the display panel 19 via the second signal converter 16; the second signal converter 16 is used to convert the first ZigBee signal and the second ZigBee signal into a first electrical signal and a second electrical signal, respectively.

[0116] In a possible implementation, the second signal converter 16 is a USB (Universal Serial Bus) to ZigBee protocol module or a serial port to ZigBee protocol module.

[0117] The communication rate of the serial port conversion ZigBee protocol module can reach up to 230kb / s. The USB interface of the USB conversion ZigBee protocol module complies with the full-speed USB 2.0 specification and has a communication rate of 512kb / s. Optionally, the USB interface adopts a USB interface of the HID (Human Interface Device) protocol.

[0118] Introduction to the display panel 19: The display panel 19 is electrically connected to the second signal converter 16, and is used to receive the first operating parameter and the second operating parameter converted by the second signal converter 16, and is used to display the first operating parameter and the second operating parameter. In a possible implementation, the display panel 19 is a computer device, and the computer device and the second signal converter 16 are electrically connected via a USB interface.

[0119] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A monitoring device for a fracturing vehicle group, characterized in that: The monitoring device comprises: a first sensor (11), a second sensor (12), a first signal receiver (13), a second signal receiver (14), a first signal converter (15), a second signal converter (16), a ZigBee signal transmitter (17), a ZigBee signal receiver (18) and a display panel (19); The input end of the first signal converter (15) is electrically connected to the first sensor (11) through the first signal receiver (13), and is electrically connected to the input end of the second sensor (12) through the second signal receiver (14); the output end of the first signal converter (15) is electrically connected to the ZigBee signal transmitter (17), and the ZigBee signal receiver (18) is electrically connected to the display panel (19) through the second signal converter (16); The first signal receiver (13) is used to convert the first operating parameter of the fracturing pump truck obtained by the first sensor (11) into a first electrical signal; the second signal receiver (14) is used to convert the second operating parameter of the sand blender truck obtained by the second sensor (12) into a second electrical signal; the first signal converter (15) is used to convert the first electrical signal and the second electrical signal into a first ZigBee signal and a second ZigBee signal, respectively; the ZigBee signal transmitter (17) is used to transmit the first ZigBee signal and the second ZigBee signal; The second signal converter (16) is used to convert the first ZigBee signal and the second ZigBee signal received by the ZigBee signal receiver (18) into the first operating parameter and the second operating parameter, and the display panel (19) is used to display the first operating parameter and the second operating parameter; Wherein, the first signal receiver (13) comprises a first conversion module (131), a first relay module (132), a first processing module (133), a second relay module (134) and a first CAN transceiver module (135); The input end of the first conversion module (131) is electrically connected to the output end of the first sensor (11); the output end of the first conversion module (131) is electrically connected to the first port of the first processing module (133) through the first relay module (132); the second port of the first processing module (133) is electrically connected to the input end of the first CAN transceiver module (135) through the second relay module (134); and the output end of the first CAN transceiver module (135) is electrically connected to the input end of the first signal converter (15); The first conversion module (131) is used to convert the first operating parameter into a first digital signal, the first relay module (132) is used to convert the first digital signal into a first CAN optical signal, the first processing module (133) is used to remove noise in the first CAN optical signal to obtain a second CAN optical signal, the second relay module (134) is used to convert the second CAN optical signal into a second digital signal, and the first CAN transceiver module (135) is used to transmit the second digital signal to the first signal converter (15).

2. The monitoring device according to claim 1, characterized in that: The second signal receiver (14) comprises a second conversion module (141), a third relay module (142), a second processing module (143), a fourth relay module (144) and a second CAN transceiver module (145); The input end of the second conversion module (141) is electrically connected to the output end of the second sensor (12); the output end of the second conversion module (141) is electrically connected to the first port of the second processing module (143) through the third relay module (142); the second port of the second processing module (143) is electrically connected to the input end of the second CAN transceiver module (145) through the fourth relay module (144); and the output end of the second CAN transceiver module (145) is electrically connected to the input end of the first signal converter (15); The second conversion module (141) is used to convert the second operating parameter into a third digital signal, the third relay module (142) is used to convert the third digital signal into a third CAN optical signal, the second processing module (143) is used to remove noise in the third CAN optical signal to obtain a fourth CAN optical signal, the fourth relay module (144) is used to convert the fourth CAN optical signal into a fourth digital signal, and the second CAN transceiver module (145) is used to transmit the fourth digital signal to the first signal converter (15).

3. The monitoring device according to claim 1, characterized in that: The monitoring device further comprises a first protection module (21) and a second protection module (22); The first protection module (21) is electrically connected to an input end of the first signal receiver (13), and the second protection module (22) is electrically connected to an input end of the second signal receiver (14); The first protection module (21) is used to stabilize the voltage and current of the first signal receiver (13), and the second protection module (22) is used to stabilize the voltage and current of the second signal receiver (14).

4. The monitoring device according to claim 3, characterized in that: The first protection module (21) comprises a first TVS and a first PTC thermistor, and the second protection module (22) comprises a second TVS and a second PTC thermistor; The first TVS is electrically connected to the input end of the first signal receiver (13) through the first PTC thermistor, and the second TVS and the second PTC thermistor are electrically connected to the input end of the second signal receiver (14) through the second PTC thermistor; The first TVS is used to stabilize the voltage of the first signal receiver (13), and the first PTC thermistor is used to stabilize the current of the first signal receiver (13); the second TVS is used to stabilize the voltage of the second signal receiver (14), and the second PTC thermistor is used to stabilize the current of the second signal receiver (14).

5. The monitoring device according to claim 1, characterized in that: The monitoring device further comprises a first anti-interference device (23) and a second anti-interference device (24); The first signal receiver (13) is electrically connected to a ground wire through the first anti-interference device (23), and the second signal receiver (14) is electrically connected to the ground wire through the second anti-interference device (24); The first anti-interference device (23) is used to prevent electromagnetic radiation from interfering with a first operating parameter received by the first signal receiver (13), and the second anti-interference device (24) is used to prevent electromagnetic radiation from interfering with a second operating parameter received by the second signal receiver (14).

6. The monitoring device according to claim 5, characterized in that: The first anti-interference device (23) includes a first capacitor and a second capacitor, and the second anti-interference device (24) includes a third capacitor and a fourth capacitor; The high level end of the first signal receiver (13) is electrically connected to the ground line through the first capacitor, and the low level end of the first signal receiver (13) is electrically connected to the ground line through the second capacitor; The high level end of the second signal receiver (14) is electrically connected to the ground line through the third capacitor, and the low level end of the second signal receiver (14) is electrically connected to the ground line through the fourth capacitor.

7. The monitoring device according to claim 1, characterized in that: The monitoring device further comprises a first controller (25), a first potentiometer (26), a second controller (27) and a second potentiometer (28); The output end of the first signal receiver (13) is electrically connected to the input end of the first potentiometer (26) through the first controller (25), and the output end of the first potentiometer (26) is used to be electrically connected to the operating circuit of the fracturing pump truck; the output end of the second signal receiver (14) is electrically connected to the input end of the second potentiometer (28) through the second controller (27), and the output end of the second potentiometer (28) is used to be electrically connected to the operating circuit of the sand blending truck; The first controller (25) is used to adjust the resistance value of the sliding end of the first potentiometer (26), thereby changing the operating voltage of the fracturing pump truck; the second controller (27) is used to adjust the resistance value of the sliding end of the second potentiometer (28), thereby changing the operating voltage of the sand mixing truck.

8. The monitoring device according to claim 1, characterized in that: The monitoring device also includes a ZigBee network router (20); The ZigBee signal transmitter (17) is communicatively connected to the ZigBee signal receiver (18) via the ZigBee network router (20); The ZigBee network router (20) is used to receive the first ZigBee signal and the second ZigBee signal transmitted by the ZigBee signal transmitter (17), and to transmit the first ZigBee signal and the second ZigBee signal to the ZigBee signal receiver (18).

9. The monitoring device according to claim 1, characterized in that: The first sensor (11) comprises a first engine sensor, a transmission box sensor and a plunger pump sensor; the second sensor (12) comprises a second engine sensor, a sand conveying auger sensor, a stirring tank sensor and a centrifugal pump sensor.

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