CN216956748U - Vehicle-mounted data acquisition and storage system - Google Patents
Vehicle-mounted data acquisition and storage system Download PDFInfo
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- CN216956748U CN216956748U CN202220981175.5U CN202220981175U CN216956748U CN 216956748 U CN216956748 U CN 216956748U CN 202220981175 U CN202220981175 U CN 202220981175U CN 216956748 U CN216956748 U CN 216956748U
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- 230000006854 communication Effects 0.000 claims abstract description 18
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- 238000003745 diagnosis Methods 0.000 abstract description 4
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- 240000002234 Allium sativum Species 0.000 description 9
- 235000004611 garlic Nutrition 0.000 description 9
- 238000005259 measurement Methods 0.000 description 4
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- 238000002955 isolation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
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- 238000003306 harvesting Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a vehicle-mounted data acquisition and storage system, which comprises an acquisition board, a storage board, a PLC (programmable logic controller) and a data downloading module, wherein the acquisition board is used for acquiring switching value and analog quantity signals; the storage board is used for storing data information acquired by the acquisition board and the PLC, and the storage board is in communication connection with the acquisition board through a serial port; the PLC is in communication connection with the storage board through 485; the data download module is used for providing data download service, data download module and memory board electric connection, this on-vehicle data acquisition and storage system, through setting up acquisition board collection switching value signal and analog signal, can gather the data of vehicle operation in-process in real time, provide data support for vehicle failure diagnosis service, and set up optical coupler and isolator on the acquisition board to having solved switching value signal and analog signal direct access STM32 and easily received the problem of external disturbance, and is very practical.
Description
Technical Field
The utility model belongs to the technical field of data acquisition, and particularly relates to a vehicle-mounted data acquisition and storage system.
Background
The existing garlic combine harvester is low in intelligentization level, fault diagnosis is often carried out on the garlic combine harvester through worker experience when the garlic combine harvester breaks down, the garlic combine harvester is troublesome, and no acquisition system is applied to the garlic combine harvester to carry out data acquisition on the garlic combine harvester, so that the garlic combine harvester is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a vehicle-mounted data collection and storage system, so as to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a vehicle-mounted data acquisition and storage system comprises;
the acquisition board is used for respectively acquiring switching value signals and analog quantity signals by arranging a switching value acquisition circuit and an analog quantity acquisition circuit; the acquisition board is also provided with an optical coupler which is connected with the switching value acquisition circuit; the acquisition board is also provided with an isolator, and the isolator is connected with an analog quantity acquisition circuit;
the storage board is used for storing the data information acquired by the acquisition board and the PLC, and is in communication connection with the acquisition board;
the PLC is used for connecting the sensor to acquire data information and is in communication connection with the storage board;
and the data downloading module is used for providing data downloading service and is electrically connected with the memory board.
Preferably, the processor of the acquisition board adopts an STM32 chip, and transmits acquired data to the storage board through serial port communication.
Preferably, the sensors include hydraulic pressure sensors, torque sensors, and weight sensors.
Preferably, the PLC is in communication connection with the storage board through 485.
Preferably, the storage board is provided with an SD card slot, the data download module is also provided on the storage board, and the data download module is provided as an ethernet interface, and downloads data through the ethernet interface.
The utility model has the technical effects and advantages that: this on-vehicle data acquisition and storage system gathers switching value signal and analog signal through setting up the collection board, can gather the data of vehicle operation in-process in real time, for vehicle failure diagnosis service provides data support, and set up optical coupler and isolator on the collection board and solved switching value signal and analog signal direct access STM32 and easily received the problem of external disturbance, and is very practical.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a circuit diagram of the switching value acquisition circuit of the present invention;
fig. 3 is a circuit diagram of the analog acquisition circuit of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The utility model provides a vehicle-mounted data acquisition and storage system as shown in figure 1, which comprises an acquisition board, a storage board, a PLC (programmable logic controller) and a data downloading module, wherein the acquisition board is used for acquiring switching value signals and analog value signals; the storage board is used for storing data information acquired by the acquisition board and is in communication connection with the acquisition board; the PLC is used for connecting a sensor to acquire data information, the sensor comprises a hydraulic pressure sensor, a torque sensor, a weight sensor and the like, the hydraulic pressure sensor is used for detecting hydraulic pressure, the torque sensor is used for detecting the torque of a driving vibration shaft, the weight sensor is used for detecting the harvest weight, and the PLC is in communication connection with the storage plate; the data downloading module is used for providing data downloading service and is electrically connected with the memory board. The storage board is provided with an SD card slot for supporting storage of the SD card, the data downloading module is also arranged on the storage board and is set as an Ethernet interface, and data downloading is carried out through the Ethernet interface so as to provide data downloading service to the outside. The acquisition board is responsible for acquiring switching value and analog quantity signals and sending data to the storage board through serial port communication; the storage board receives the data information collected by the collecting board and realizes the receiving and storing of the PLC data through 485 communication.
Specifically, the treater of collection board adopts the STM32 chip, specifically uses STM32F103ZET6 chip to gather the board as core design, gathers board mainly used and gathers switching value signal and analog signal, can gather 24 ways switching value signal, 12 ways analog signal to through serial ports communication with data transmission to the memory board of gathering.
Because the switching value signal is directly connected to the STM32 and is easily influenced by external interference, a switching value acquisition circuit on the existing acquisition board is optimized on the basis of an original switching value signal measurement circuit, optical couplers are added in all switching value signal acquisition links for optical coupling isolation, and the optical couplers are connected with the switching value acquisition circuit; the switching value acquisition circuit is shown in fig. 2: because the optical coupling isolation input end needs 12v of driving voltage, and the maximum value of the switching value signal is generally 3.3v or 5v, the ULN2803A device is added at the input end of the switching value signal, and the ULN2803A device has the functions of reversing and driving, so that the normal operation of the circuit is ensured.
Specifically, the ADS1110 is used for analog signal acquisition, and an analog acquisition circuit is shown in fig. 3; in order to avoid interference caused by direct access of analog quantity signals to STM32, an isolator is arranged and connected with an analog quantity acquisition circuit, and because ADS1110 uses an IIC protocol for communication, ISO1541 with IIC-compatible isolated bidirectional communication characteristics is selected as the isolator;
the analog quantity signal is composed of a voltage signal and a current signal, and the ADS1110 default output value is shown as the formula:
VIN + and VIN-are respectively input at two ends of the ADS 1110;
as can be seen from the formula, the ADS1110 can only measure a voltage signal, and therefore when a current signal is input, the current signal needs to be converted into a voltage signal; the input end of the ADS1110 is connected with a resistor in parallel, and the resistor of 100 omega is determined by combining a formula because the current signal to be measured is 0 mA-20 mA.
The default output range of the ADS1110 is-32768-32767, and the formula can obtain that the measurement range of the ADS1110 is-2.048V, the output of the used sensor is 0V-10V, the required range is not met, and therefore the circuit needs to be improved; resistors with the total value of 400 omega are connected in series at the input end of the ADS1110 for voltage division, and the negative end of the input end is grounded, so that the measurement range of the ADS1110 is 0V-10V.
The memory board takes an eMMC version EBF6ULL S1 core board as a core design, the memory board is mainly used for storing measurement data, the memory capacity of the core board is 8GB, and the data sent by the acquisition circuit board and the PLC are respectively received through serial communication and 485 communication.
In the using process of the vehicle-mounted data acquisition and storage system, the switching value information and the analog value information of the garlic combine harvester are acquired, the garlic combine harvester can be monitored in real time, data support is provided for later fault diagnosis service, the PLC can be externally connected with a sensor, the data acquisition content is further improved, and the monitoring function is added.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. A vehicle-mounted data acquisition and storage system is characterized by comprising;
the acquisition board is used for respectively acquiring switching value signals and analog quantity signals by arranging a switching value acquisition circuit and an analog quantity acquisition circuit; the acquisition board is also provided with an optical coupler which is connected with the switching value acquisition circuit; the acquisition board is also provided with an isolator, and the isolator is connected with an analog quantity acquisition circuit;
the storage board is used for storing the data information acquired by the acquisition board and the PLC, and is in communication connection with the acquisition board;
the PLC is used for connecting the sensor to acquire data information and is in communication connection with the storage board;
and the data downloading module is used for providing data downloading service and is electrically connected with the memory board.
2. The vehicle-mounted data acquisition and storage system according to claim 1, wherein: the processor of collection board adopts the STM32 chip, and sends the data transmission who gathers to the memory board through serial communication.
3. The vehicle-mounted data acquisition and storage system according to claim 1, wherein: the sensors comprise a hydraulic pressure sensor, a torque sensor and a weight sensor.
4. The vehicle-mounted data acquisition and storage system according to claim 1, wherein: and the PLC is in communication connection with the storage board through 485.
5. The vehicle-mounted data acquisition and storage system according to claim 1, wherein: the storage board is provided with an SD card slot, the data downloading module is also arranged on the storage board and is set as an Ethernet interface, and data downloading is carried out through the Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220981175.5U CN216956748U (en) | 2022-04-26 | 2022-04-26 | Vehicle-mounted data acquisition and storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220981175.5U CN216956748U (en) | 2022-04-26 | 2022-04-26 | Vehicle-mounted data acquisition and storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216956748U true CN216956748U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220981175.5U Expired - Fee Related CN216956748U (en) | 2022-04-26 | 2022-04-26 | Vehicle-mounted data acquisition and storage system |
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| Country | Link |
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| CN (1) | CN216956748U (en) |
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2022
- 2022-04-26 CN CN202220981175.5U patent/CN216956748U/en not_active Expired - Fee Related
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Granted publication date: 20220712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |