CN212889894U - Electromagnet monitoring box and magnetic-levitation train - Google Patents
Electromagnet monitoring box and magnetic-levitation train Download PDFInfo
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- CN212889894U CN212889894U CN202021253366.7U CN202021253366U CN212889894U CN 212889894 U CN212889894 U CN 212889894U CN 202021253366 U CN202021253366 U CN 202021253366U CN 212889894 U CN212889894 U CN 212889894U
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Abstract
The utility model discloses an electro-magnet monitoring box and maglev train, electro-magnet monitoring box include the monitoring devices body, and the monitoring devices body includes: the bottom of the shell is provided with a first limiting boss and a cylindrical hole, four corners of the shell are provided with first fixing bulges, and one side of each first fixing bulge is provided with a second fixing bulge; the cover plate is arranged at the opening; the core board comprises a processor, an Ethernet interface, a data storage module and an RS232 debugging serial port; the bottom plate is arranged above the core plate and fixed on the second fixing bulge, and comprises a signal input interface, a conditioning circuit, an analog switch, an AD conversion circuit, a power circuit and a CAN module; and the connecting interface is arranged on the side wall of the shell and is connected with the signal input interface, the power circuit, the CAN module and the Ethernet interface. The electromagnet monitoring box can acquire the numerical values of the dimensions of the vibration acceleration of the suspension frame, the vibration acceleration of the eddy current braking electromagnet, the temperature of the electromagnet and the like, and the monitoring and analysis of the working state of the maglev train are realized.
Description
Technical Field
The utility model relates to a sensor field especially relates to an electro-magnet monitoring box and maglev train.
Background
The medium speed maglev train is a novel urban traffic tool, realizes the suspension and the direction of train through controlling the suspension electro-magnet, provides towed power for the train through linear electric motor. As a novel transportation mode, the safety and reliability of the magnetic suspension train must meet high standards to meet the requirements of commercial operation of trains in the future. And the states of key parts such as a linear motor, an electromagnet, a current collector and the like play a crucial role in the safe and stable operation of the train in the operation process of the medium-speed maglev train. The existing open running Changsha maglev and Beijing maglev are not provided with train state monitoring systems, cannot acquire related data such as running states of maglev trains, can only overhaul the states of the trains after the trains return to the warehouse, and cannot meet the requirements of the maglev trains on running safety and the like.
In the existing open-running magnetic suspension line, along with the long-term running of a magnetic suspension train, along with the change of line conditions and the reduction of the performance of each part of the train, the vibration of parts such as a linear motor, an electromagnet and the like on the magnetic suspension train is increased, abnormal sound is generated, the comfort of the magnetic suspension train is reduced, and severe vibration of suspension instability is generated in severe cases to influence the running safety of the train.
In the prior art, an acceleration sensor and a temperature sensor are generally arranged on a suspension frame, a suspension electromagnet and a guiding electromagnet to realize monitoring, but the motion state and the working temperature of an eddy current braking electromagnet cannot be monitored, and key braking components of a train cannot be monitored, so that certain potential safety hazards are possessed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electro-magnet monitoring box can solve the not easily monitored problem of the vibration acceleration of suspension frame, vortex braking electro-magnet's vibration acceleration, electro-magnet's temperature.
The technical solution of the utility model is as follows:
a medium-speed magnetic levitation electromagnet monitoring box comprises a monitoring device body, wherein the monitoring device body comprises a bottom plate and a core plate;
the bottom plate is provided with a signal input interface, a conditioning circuit, an analog switch and an AD conversion circuit, and is also provided with a power circuit and a CAN module;
the sensor is used for detecting different dimensions and forming an analog signal;
the signal input interface is used for acquiring an analog signal of an external sensor and transmitting the analog signal to the conditioning circuit;
the conditioning circuit is used for conditioning an external sensor signal to form a first signal;
the analog switch is used for carrying out multi-channel acquisition on the first signal;
the AD conversion circuit is used for carrying out analog-to-digital conversion on the first signal to form a digital signal and transmitting the digital signal to the core board;
the core board comprises a processor, an Ethernet interface, a data storage module and an RS232 debugging serial port, and is connected with the bottom board through the expansion interface;
the processor is used for restoring the digital signals, forming numerical values corresponding to dimensional quantities and storing the numerical values into the storage module;
the CAN module is used for transmitting the numerical value to an upper computer.
Preferably, a power circuit is further arranged on the bottom plate; the power supply circuit comprises a power filter and a voltage reduction module, wherein the voltage reduction module is respectively connected with the core board, the conditioning circuit, the analog switch, the AD conversion circuit, the low-dropout linear voltage regulator and the booster circuit, the low-dropout linear voltage regulator is connected with the CAN module, and the booster circuit is electrically connected with the sensor.
Preferably, the electromagnet monitoring box further comprises a sensor connected with the monitoring device body, wherein the sensor comprises a temperature sensor, a pressure sensor and a three-axis acceleration sensor.
Preferably, the three-axis acceleration sensor is arranged at four corners of the suspension frame, the temperature sensor is arranged on the guiding electromagnet, the suspension electromagnet and the eddy current braking electromagnet, and the pressure sensor is arranged on the air cylinder.
Preferably, the processor comprises an STM32F767IGT6 chip, the triaxial acceleration sensor comprises a Model4630 sensor, and the data storage module comprises SDRAM data storage.
Preferably, the temperature sensor comprises a PT100 platinum resistor, and the AD conversion circuit comprises an AD7606BRSZ chip.
The utility model also provides a maglev train, including foretell electro-magnet monitoring box.
Preferably, the maglev train includes first floating frame and second floating frame and connects the frame of first floating frame and second floating frame, the both sides of first floating frame all are provided with suspension electromagnet and direction electro-magnet, the both sides of frame all are provided with suspension electromagnet and vortex braking electro-magnet.
Preferably, the maglev train includes four the electro-magnet monitoring box, the frame of first suspension frame and second suspension frame all is provided with 4 triaxial acceleration sensor, all be provided with 14 temperature sensor on the suspension electro-magnet of first suspension frame both sides, all be provided with 8 temperature sensor on the direction electro-magnet of first suspension frame both sides, all be provided with 12 temperature sensor on the suspension electro-magnet of frame both sides, all be provided with 6 temperature sensor on the vortex braking electro-magnet.
The utility model is provided with an electromagnet monitoring box comprising a bottom plate and a core plate, wherein the bottom plate is provided with a signal input interface, a conditioning circuit, an analog switch, an AD conversion circuit, a power circuit and a CAN module; the signal input interface acquires an analog signal of an external sensor and transmits the analog signal to the conditioning circuit, and the conditioning circuit conditions the external sensor signal to form a first signal; the analog switch carries out multi-channel acquisition on the first signal; the AD conversion circuit performs analog-to-digital conversion on the first signal to form a digital signal and transmits the digital signal to the core board; the core board is connected with the bottom board, and the processor on the core board is used for restoring the digital signals, forming numerical values corresponding to dimensional quantities and storing the numerical values into the storage module; and the CAN module transmits the numerical value to an upper computer. Therefore, specific numerical values of dimensions such as vibration acceleration of the suspension frame, vibration acceleration of the eddy current braking electromagnet, temperature of the ground magnet and the like are obtained, and monitoring and analysis of the working state of the maglev train are realized.
Drawings
FIG. 1 is a schematic diagram of a circuit configuration of an embodiment of an electromagnet monitoring box;
FIG. 2 is a circuit diagram of the AD conversion circuit in the embodiment of FIG. 1;
FIG. 3 is a circuit diagram of the core board of the embodiment of FIG. 1;
FIG. 4 is a circuit diagram of an analog switch in the embodiment of FIG. 1;
FIG. 5 is a circuit diagram of an acceleration sensor conditioning circuit in the embodiment of FIG. 1;
FIG. 6 is a circuit diagram of the P4 connector in the embodiment of FIG. 1;
FIG. 7 is a circuit diagram of a temperature sensor conditioning circuit in the embodiment of FIG. 1;
FIG. 8 is a circuit diagram of a pressure sensor conditioning circuit in the embodiment of FIG. 1;
FIG. 9 is a circuit diagram of the P3 connector in the embodiment of FIG. 1;
FIG. 10 is a circuit diagram of the P5 connector in the embodiment of FIG. 1;
FIG. 11 is a schematic diagram of the power circuit of the embodiment of FIG. 1;
FIG. 12 is a circuit diagram of a CAN module in the embodiment of FIG. 1;
FIG. 13 is a circuit diagram of the CAN interface in the embodiment of FIG. 1;
FIG. 14 is a circuit diagram of a power circuit in the embodiment of FIG. 1;
FIG. 15 is a schematic structural view of another embodiment of an electromagnet monitoring cartridge;
FIG. 16 is a schematic diagram of the distribution of electromagnet monitoring boxes in an embodiment of a maglev train.
Detailed Description
The utility model provides an electromagnet monitoring box, refer to fig. 1 to 16, the electromagnet monitoring box comprises a square shell 11 with an open end, a cover plate 12 arranged at the opening of the shell 11 and a sealing ring arranged between the opening and the cover plate 12, the middle area of the inner bottom of the shell 11 is provided with two first limit bosses 11a and two cylindrical holes 11b, the side wall is provided with two second limit bosses 11c, the four corners and a narrower pair of sides of the shell 11 are provided with first fixed bulges 11d which protrude inwards, the wider pair of sides of the shell 11 is provided with second fixed bulges 11e which protrude outwards, one side of the first fixed bulges 11d at the four corners of the shell 11 is provided with third fixed bulges 11f, the first fixed bulges 11d are arranged at the same height as the shell 11, the height of the third fixed bulges 11f is lower than that of the first fixed bulges 11d to form steps, the first fixing protrusion 11d and the second fixing protrusion 11e are provided with fixing holes.
The electromagnet monitoring box also comprises a 55-core aerial plug 12, two 37-core aerial plugs 13, a power interface 14, a network interface 16 and a CAN interface 15 which are arranged on the side edge of the shell 11. The electromagnet monitoring box further includes a core board 20 disposed inside the housing 11, and a bottom board 30 disposed above the core board 20. The core plate 20 is received by the first limit projection 11a and the second limit projection 11c, and is fixed to the cylindrical hole 11b by screws. The base plate 30 is disposed above the core plate 20, the second fixing protrusion 11e is provided with a receiving screw 17, the upper end of the receiving screw 17 is provided with a screw hole, and the base plate 30 is received by the receiving screw 17 and fixed on the receiving screw 17. The cover plate 12 is fixed to the first fixing projection 11 d. The core board 20 and the backplane 30 are electrically connected to the 55-core jacks 12, 37-core jacks 13, the power interface 14, the network interface 16, and the CAN interface 15.
In this embodiment, the bottom plate 30 is provided with a signal input interface (electrically connected to the 55-core aerial plug and the 37-core aerial plug), a conditioning circuit, an analog switch, and an AD conversion circuit, and the bottom plate 30 is further provided with a power circuit (connected to the power interface) and a CAN module (connected to the CAN interface).
The signal input interface is used for acquiring an analog signal of the sensor and transmitting the analog signal to the conditioning circuit; the conditioning circuit is used for conditioning an external sensor signal to form a first signal; the analog switch is used for carrying out multi-channel acquisition on the first signal; the AD conversion circuit is configured to perform analog-to-digital conversion on the first signal to form a digital signal, and transmit the digital signal to the core board 20; the core board 20 includes a processor, an ethernet interface, a data storage module, and an RS232 debug serial port, and the core board 20 is connected to the backplane 30 through the expansion interface; the processor is used for restoring the digital signals, forming numerical values corresponding to dimensional quantities and storing the numerical values into the storage module; the CAN module is used for transmitting the numerical value to an upper computer. The ethernet interface is connected to a network interface 16.
In this embodiment, referring to fig. 11 and 14, a power circuit is further disposed on the bottom plate 30; the power supply circuit comprises a power supply filter and a voltage reduction module, wherein the voltage reduction module is respectively connected with the core board 20, the conditioning circuit, the analog switch, the AD conversion circuit, the low-dropout linear regulator and the booster circuit, the low-dropout linear regulator is connected with the CAN module, and the booster circuit is electrically connected with the sensor. The electromagnet monitoring module is internally provided with a power supply conversion module which can convert the input DC110V voltage into the power supply required by the sensor and the electromagnet monitoring module.
In this embodiment, referring to fig. 3, the minimum system of the core board 20 includes an ARM processor, an FPGA, an ethernet interface, a TF card storage module, and 1 RS232 debug serial port (reserved).
The ARM processor adopts STM32F767IGT6 of ST company and CORTEX-M4 kernel; the highest dominant frequency 216 Mhz; the system is provided with 4 paths of I2C interfaces, 4 paths of USART interfaces, 6 paths of SPI interfaces, 2 paths of SAI interfaces, 3 paths of CAN interfaces 15, FMC bus interfaces and the like; 24 paths of 12bit AD and 2 paths of 12bit DA; 168 high-speed IO ports, 11 16-bit timers and 2 32-bit timers.
The FPGA adopts EP4CE15F484 (or other high-capacity chips with compatible pins) of the Cyclone series of Altera company, and the following functions are completed through hardware logic: performing time sequence control on AD acquisition; and the data is cached and sent to the MCU for storage. The FPGA sends the collected data to the ARM through the FMC interface in real time in 100 bytes. The 100 bytes carry out data interaction according to the protocol definition specified by the two parties. The ARM reads 100 bytes of data from the FPGA in real time through the FMC interface and stores the data in the TF card in real time. When the uploading mark is detected, the ARM sends the data in the TF card to the PC upper computer through the Ethernet interface or the CAN interface 15.
The STM32F767IGT6 processor is provided with an SDIO interface, and the data storage function can be realized by connecting the SDIO interface with a TF card. The tentative protocol is 100 bytes in a frame, sampling is performed at 1Khz, and the 48h data storage amount is: 48 × 60 × 1000 × 100Byte ≈ 16.2 GB. And the 32GB TF card is selected for data storage, so that the requirements can be met.
In this embodiment, the AD conversion circuit selects AD7606BRSZ chip of ADI corporation, 8-channel synchronous sampling, 16-bit resolution, 200kps sampling rate, and has data interfaces such as parallel port and SPI bus. The D14-D29 pins of the core board 20 are correspondingly connected with the DB0-DB15 pins of the AD7606BRSZ chip. The D6-D11 pins of the core board 20 are correspondingly connected with the DB0-DB15 pins of the AD7606BRSZ chip.
Referring to FIG. 4, the analog switch is preferably a DG408LEDQ-GE3 chip with pins D connected to the V1-V8 pins of the AD7606BRSZ chip, respectively.
Referring to fig. 5 and 6, the acceleration sensors are three-axis acceleration sensors, analog signals of X/Y/Z axes need to be conditioned separately, each three-axis acceleration sensor is connected with a three-way conditioning circuit, the conditioning circuit comprises a voltage follower formed by an operational amplifier, the output ends of the three-way conditioning circuit are correspondingly connected with pins S4/S5/S6 of a DG408LEDQ-GE3 chip, 4 acceleration sensors are connected with four analog switches U5/U6/U7/U8, the total 12-way conditioning circuit is provided, the positive input end of the three-way conditioning circuit is connected with a 55-core aviation plug 12(P4), and the negative input end of the three-way conditioning circuit is grounded.
Referring to the circuit diagram of the temperature sensor's conditioning circuit IN fig. 7, the upper REF2940AIDBZRG4 has the IN terminal connected to the 5V power supply and the OUT terminal connected IN parallel to the non-inverting and inverting inputs of LM258 to provide the reference source. The output end of the LM258 is connected with the pins S1, S2 or S3 of the DG408LEDQ-GE3 chip, and the positive input end and the negative input end of the LM258 are connected with the 37-core aviation plug 13(P3 and P5). The conditioning circuit of the temperature sensor mainly amplifies and follows the output signal of the temperature sensor.
Referring to fig. 8, 9 and 10, the pressure sensor conditioning circuit includes AD822, i.e., U20A and U20B, in which the positive input terminal of U20B is connected to the 2 pin of 37-core aviation plug 13P3, the negative input terminal of U20B is connected to ground, the output terminal of U20B is connected to the positive input terminal of U20A, and the output terminal of U20A is connected to the S2 pin of analog switch U8. The AD822 can here amplify and follow the output signal of the pressure sensor.
Referring to fig. 12 and 11, the CAN module is preferably a TD301DCANH3 module, the TXD terminal of which is connected to the D2 pin of the core board 20, the RXD terminal of which is connected to the E1 pin of the core board 20, and the CANL terminal of which is connected to the CANH terminal of which is connected to the CAN interface 15.
In this embodiment, the electromagnet monitoring box further comprises a sensor connected with the monitoring device body, wherein the sensor comprises a temperature sensor, a pressure sensor and a three-axis acceleration sensor. The external communication interface comprises a 1-path Ethernet interface and a 1-path CAN interface 15, and STM32F767IGT6 is realized by being connected with an Ethernet controller in an RGMII mode, and the Ethernet controller adopts a LAN 8720A. STM32F767IGT6 converts LVTTL signal into CAN signal through a CAN transceiver module to communicate with outside. The processor comprises an STM32F767IGT6 chip, the triaxial acceleration sensor comprises a Model4630 sensor, and the data storage module comprises SDRAM data storage. The temperature sensor comprises a PT100 platinum resistor, and the AD conversion circuit comprises an AD7606BRSZ chip. STM32F767IGT6 monitors the pressure value, the temperature value and the acceleration value, and when the values are not in the preset range, alarm information is sent to an upper computer.
Referring to fig. 15 and 16, in this embodiment, the three-axis acceleration sensors are disposed at four corners of the suspension frame, the temperature sensors are disposed on the guiding electromagnet, the suspension electromagnet and the eddy current braking electromagnet, the pressure sensors are disposed on the air cylinders, the air cylinders store compressed air generated by the air compressor, air of the air cylinders is used in all places of the train where the compressed air is needed, the pressure sensors are disposed to monitor air pressure of the air cylinders, and the monitoring device body is disposed on the vehicle frame connected to the suspension frame.
Specifically, the maglev train includes first floating frame and second floating frame and connects the frame of first floating frame and second floating frame, the both sides of first floating frame all are provided with suspension electro-magnet and direction electro-magnet, the both sides of frame all are provided with suspension electro-magnet and vortex braking electro-magnet. The three-axis detection direction of the three-axis acceleration sensor is consistent with the advancing direction of the train, the direction perpendicular to the train on the track plane and the vertical direction. The acceleration sensor is arranged on the first suspension frame, the second suspension frame and the eddy current braking electromagnet. Each suspension frame is provided with 4 acceleration sensors, and each suspension frame is provided with 2 phi 4 through holes. Each eddy current brake electromagnet is provided with 2 acceleration sensors. Each acceleration sensor is provided with 2 threaded holes of M3. And the parallelism requirements of the detection surface of the sensor, the suspension frame and the magnetic pole surface of the electromagnet are ensured during installation.
The body of the electromagnet monitoring module is installed on adapter plates on two sides of a cross beam of the suspension frame, 1 adapter plate is respectively arranged on two sides of the cross beam, 4M 10 threaded holes are formed in the adapter plates and connected with the suspension frame, and the electromagnet monitoring module is connected with the adapter plates through fasteners through 4M 4 through holes in the adapter plates. The installation should have sufficient space and strength to ensure that the installation bolts are tightened.
The utility model is provided with an electromagnet monitoring box comprising a bottom plate 30 and a core plate 20, wherein the bottom plate 30 is provided with a signal input interface, a conditioning circuit, an analog switch, an AD conversion circuit, a power circuit and a CAN module; the signal input interface acquires an analog signal of an external sensor and transmits the analog signal to the conditioning circuit, and the conditioning circuit conditions the external sensor signal to form a first signal; the analog switch carries out multi-channel acquisition on the first signal; the AD conversion circuit performs analog-to-digital conversion on the first signal to form a digital signal, and transmits the digital signal to the core board 20; the core board 20 is connected to the base board 30 through an expansion interface, and a processor thereon is used for restoring the digital signal and forming a numerical value corresponding to a dimensional quantity and storing the numerical value in a storage module; and the CAN module transmits the numerical value to an upper computer. Therefore, the vibration acceleration of the suspension frame, the vibration acceleration of the eddy current braking electromagnet and the temperature of the electromagnet are obtained, the working state is monitored and analyzed, and the change trend of the running state of each key component of the magnetic suspension train under different working conditions is mastered. The electromagnet monitoring module has a data preprocessing function, and when the data exceeds a set value, the data is transmitted to the IOM module through a train network.
In addition, through setting up triaxial acceleration sensor to the four corners of first suspension 1 and second suspension 2, acquire the motion parameter of suspension in the four points of the orbital clearance department of train, can further promote the measurement precision, set up temperature sensor and triaxial acceleration sensor on eddy current braking electromagnet in addition, also can acquire the numerical value of the motion parameter and operating temperature of eddy current braking electromagnet. The key braking components can be monitored in the braking state of the train, and the safety performance of the train is improved.
In this embodiment, according to the function and performance requirements of the electromagnet monitoring module, the electromagnet monitoring module needs to collect 80 paths of temperature sensor signals, 12 paths of acceleration sensor signals and 1 path of pressure sensor signals, and 4 electromagnet monitoring modules are used for collecting, therefore, each electromagnet monitoring module can collect 23 paths of temperature sensors, 1 path of pressure sensor and 4 paths of acceleration sensor data, after multiple groups of sensors are arranged, the multiple groups of sensors correspondingly generate multiple paths of analog signals, and have higher requirements on the collection power consumption of the signals and the operational capability and power consumption of the processor, the analog switch is a tristable circuit, and can determine the states of an input end and an output end according to the level of a gating end. When the gating end is in the gating state, the state of the output end depends on the state of the input end; when the gate is in the cut-off state, the output terminal is in the high-impedance state regardless of the level of the input terminal. The analog switch functions as an on signal or an off signal. In this embodiment, an 8-way analog switch is adopted for switching acquisition, power consumption and other considerations are taken into account, the scheme is a mature design, and a schematic block diagram of the primary electromagnet monitoring module scheme is shown in fig. 1.
The utility model discloses still provide a maglev train, refer to figure 15 and figure 16, maglev train includes foretell electro-magnet monitoring box. The maglev train includes four the electro-magnet monitoring box, the frame of first suspension frame and second suspension frame all is provided with 4 triaxial acceleration sensor, all be provided with 14 temperature sensor on the suspension electro-magnet of first suspension frame both sides, all be provided with 8 temperature sensor on the direction electro-magnet of first suspension frame both sides, all be provided with 12 temperature sensor on the suspension electro-magnet of frame both sides, all be provided with 6 temperature sensor on the eddy current braking electro-magnet. Therefore, the vibration acceleration of the suspension frame, the vibration acceleration of the eddy current braking electromagnet and the temperature of the electromagnet are obtained, the working state is monitored and analyzed, and the change trend of the running state of each key component of the magnetic suspension train under different working conditions is mastered. The electromagnet monitoring module has a data preprocessing function, and when the data exceeds a set value, the data is transmitted to the IOM module through a train network.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered as being described in the present specification. The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. The utility model provides an electro-magnet monitoring box which characterized in that, includes the monitoring devices body, the monitoring devices body includes:
the device comprises a shell, a first fixing device and a second fixing device, wherein an opening is formed in one end of the shell, a first limiting boss and a cylindrical hole are formed in the bottom of the shell, first fixing bulges are arranged at four corners of the shell, and a second fixing bulge is arranged on one side of each first fixing bulge;
the cover plate is arranged at the opening and fixed on the first fixing bulge;
the core board is supported by the first limiting boss and fixed in the cylindrical hole, and comprises a processor, an Ethernet interface, a data storage module and an RS232 debugging serial port;
the bottom plate is arranged above the core plate and fixed on the second fixing bulge, and the bottom plate comprises a signal input interface, a conditioning circuit, an analog switch, an AD conversion circuit, a power supply circuit and a CAN module;
and the connecting interface is arranged on the side wall of the shell and is connected with the signal input interface, the power circuit, the CAN module and the Ethernet interface.
2. The electromagnet monitoring cartridge of claim 1, wherein the signal input interface is configured to obtain an analog signal from a sensor;
the conditioning circuit is used for conditioning an analog signal of an external sensor to form a first signal;
the analog switch is used for carrying out multi-channel acquisition on the first signal;
the AD conversion circuit is used for carrying out analog-to-digital conversion on the first signal to form a digital signal and transmitting the digital signal to the core board;
the core board is connected with the bottom board through an expansion interface, and the processor is used for restoring the digital signals, forming numerical values corresponding to dimensional quantities and storing the numerical values into the storage module;
the CAN module or the Ethernet interface is used for transmitting the numerical value to an upper computer.
3. The electromagnet monitoring box of claim 2, wherein the power circuit comprises a power filter and a voltage dropping module, the voltage dropping module is electrically connected to the core board, the conditioning circuit, the analog switch, the AD conversion circuit, the low dropout regulator, and the voltage boosting circuit, respectively, the low dropout regulator is further connected to the CAN module, and the voltage boosting circuit is further electrically connected to the sensor.
4. The electromagnet monitoring box of claim 2, further comprising a sensor connected to the monitoring device body, wherein the sensor comprises a temperature sensor, a pressure sensor, and a three-axis acceleration sensor, and the connection interface is connected to the temperature sensor, the pressure sensor, and the three-axis acceleration sensor.
5. The electromagnet monitoring cartridge of claim 4, wherein the connection interface comprises two 37-core interposers and a 55-core interposer, the 37-core interposers connecting the temperature sensor and the pressure sensor, and the 55-core interposers connecting the three-axis acceleration sensor.
6. The electromagnet monitoring box of claim 4, wherein the three-axis acceleration sensors are disposed at the four corners of the suspension frame, the temperature sensors are disposed on the guiding electromagnet, the suspension electromagnet and the eddy current braking electromagnet, and the pressure sensors are disposed on the air cylinder.
7. A magnetic levitation train comprising an electromagnet monitoring cassette according to any one of claims 1-6.
8. The maglev train of claim 7, wherein the maglev train comprises a first suspension frame and a second suspension frame and a frame connecting the first suspension frame and the second suspension frame, both sides of the first suspension frame are provided with a suspension electromagnet and a guiding electromagnet, both sides of the frame are provided with a suspension electromagnet and a vortex braking electromagnet, the first suspension frame and the second suspension frame have the same structure and comprise a cross beam and an adapter plate arranged on the cross beam, and the adapter plate is provided with a threaded hole connected with the monitoring device body.
9. The maglev train of claim 8, comprising four electromagnet monitoring boxes, wherein the frames of the first suspension frame and the second suspension frame are respectively provided with 4 triaxial acceleration sensors, the suspension electromagnets on both sides of the first suspension frame are respectively provided with 14 temperature sensors, the guiding electromagnets on both sides of the first suspension frame are respectively provided with 8 temperature sensors, the suspension electromagnets on both sides of the frame are respectively provided with 12 temperature sensors, and the eddy current braking electromagnets are respectively provided with 6 temperature sensors and 2 acceleration sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021253366.7U CN212889894U (en) | 2020-07-01 | 2020-07-01 | Electromagnet monitoring box and magnetic-levitation train |
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| CN202021253366.7U CN212889894U (en) | 2020-07-01 | 2020-07-01 | Electromagnet monitoring box and magnetic-levitation train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433407A (en) * | 2021-06-22 | 2021-09-24 | 中车青岛四方机车车辆股份有限公司 | Method and device for temperature rise test of suspension electromagnet |
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2020
- 2020-07-01 CN CN202021253366.7U patent/CN212889894U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433407A (en) * | 2021-06-22 | 2021-09-24 | 中车青岛四方机车车辆股份有限公司 | Method and device for temperature rise test of suspension electromagnet |
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Denomination of utility model: Electromagnet monitoring box and maglev train Effective date of registration: 20221031 Granted publication date: 20210406 Pledgee: China Construction Bank Co.,Ltd. Changsha Xiangjiang Branch Pledgor: HUNAN LINGXIANG MAGNETIC LEVITATION TECHNOLOGY CO.,LTD. Registration number: Y2022430000094 |