CN210466103U - Load and positioning information comprehensive monitoring system for vehicle - Google Patents

Abstract

The utility model relates to a load and location information integrated monitoring system for vehicle, include: the system comprises a peripheral weighing sensor data acquisition module, a data processing module, a vehicle posture judgment module, a positioning module and a communication module; the external weighing sensor data acquisition module comprises a data interaction unit, a signal amplification unit and a signal filtering unit; the data processing module comprises a power supply processing unit, a single-chip microcomputer, a farad capacitor, a ferroelectric memory and a nonvolatile memory; the vehicle attitude judgment module comprises a digital three-axis gyroscope; the positioning module comprises a positioning chip; the communication module comprises a GSM/GRPS industrial communication module and an embedded SIM card; compared with the prior art, the method has the advantages of improving the accuracy of system measurement, reducing the dynamic error generated when the vehicle is in running or is parked on a slope, ensuring the stability of program operation, along with high weighing speed, high accuracy, convenience in installation and debugging and realization of integration of load data and a positioning information source.

Description

Load and positioning information comprehensive monitoring system for vehicle

Technical Field

The utility model relates to a load and location information integrated monitoring system for vehicle belongs to intelligent monitoring technical field.

Background

Weighing techniques have experienced approximately the following four stages of development in the last century history: the mechanical analog measurement stage of about half a century or more, then the electrical measurement and electronic measurement stage, to the end of the 70 th 20 th century, the digital measurement and microcomputer intelligent measurement stage, to the 90 th century, the new stage of the model measurement is started, and people not only require to obtain the correct result of the measurement, but also require to evaluate the state trend of the measurement result and measure the quantity in dynamic change in real time. This requirement cannot be fulfilled by conventional measurement methods and numerical processing methods, and only modeled measurements can open up a new path for solving the increasingly complex dynamic measurement problem.

Dynamic weighing, i.e. weighing an object in a non-stationary state (linear motion or vibration state and with acceleration, slope, step), requires rapid measurement in a short time, i.e. the allowed time of measurement is less than the set-up time of the weighing apparatus. Impact, vibration and various interference caused by the change of materials in the dynamic weighing process make the precision difficult to guarantee.

In order to achieve a quick, continuous and accurate weighing result and obtain a measured steady-state numerical value, a dynamic weighing system consisting of a symmetrical weighing sensor and a signal processing and data acquisition system is required to be correctly described and analyzed, so that the weighing speed of the dynamic weighing system is higher and the weighing precision is higher.

In general, dynamic weighing is gradually perfecting and advancing. Weighing is not necessary in production, construction, transportation, trade, science and technology and daily life. With the development of industrial automation and management modernization, the weighing mode is developed from traditional lever type mechanical weighing to digital intelligent weighing, and particularly, rapid dynamic weighing is greatly developed. People adopt new technology, apply digital signal processing chips, develop various automatic weighing systems and devices to improve the accuracy of dynamic weighing.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a load and positioning information integrated monitoring system for vehicle, this system is quick, dynamic weighing system, be the application of high-speed dynamic data acquisition processing in the electronic weighing device, compare with traditional static weighing device and have the simple installation, weight data acquisition is fast, weight data acquisition precision is high, weight data acquisition does not receive advantages such as vehicle dynamic disturbance factor influences in the running state, the while is integrated positioning terminal's all functions, make load data and positioning information realize combining at the collection source, the comprehensive cost of current scheme has greatly been reduced, it has wide market potential.

The following technical scheme is adopted specifically:

a load and location information integrated monitoring system for a vehicle, comprising: a data acquisition module of an external weighing sensor, a data processing module, a vehicle posture judgment module, a positioning module and a communication module,

wherein, peripheral hardware weighing sensor data acquisition module includes: the device comprises a data interaction unit, a signal amplification unit and a signal filtering unit;

the data processing module comprises: a power supply processing unit, a single-chip Microcomputer (MCU), a farad capacitor, a ferroelectric memory (FRAM), and a nonvolatile memory (FLASH);

the vehicle attitude determination module includes: a digital three-axis gyroscope;

the positioning module includes: positioning the chip;

the communication module includes: GSM/GRPS industrial communication module and embedded SIM chip.

The utility model discloses for prior art have following beneficial effect: compared with the prior art, the method has the advantages of improving the accuracy of system measurement, reducing the dynamic error generated when the vehicle runs or stops on a slope, ensuring the stability of program operation, having the advantages of high weighing speed, high accuracy, convenient installation and debugging and realizing intelligent control, and having wide market potential in other similar products. Additionally, the utility model discloses innovate the mode of traditional load and the independent control in location, fully realized the integration and the intellectuality on control layer.

Further, the data interaction unit adopts an RS485 communication mode, and realizes data interaction between the control terminal and the peripheral sensor through the SP3485 chip.

Furthermore, the signal amplification unit adopts a low-drift high-gain amplifier to amplify the current signal output by the sensing unit so as to meet the requirement of a processing end.

Further, the signal filtering unit filters out noise of the sensor output signal.

Further, the power supply processing unit converts alternating current into direct current through a full-bridge rectification circuit, and converts the direct current into working voltage through the LM25968 chip.

Further, the data processing module adopts STM32F407VET6, STM32F407VET6 includes a program bus, three data buses and four address buses, and 6 host serial ports, 2 multi-channel buffer serial ports, 6 DMA controllers, 2 sixteen-bit hardware timers, a programmable memory bank switching module, a software programmable wait register and an external bus general I/0 port are arranged outside.

Furthermore, the farad capacitor supplies power to the single chip microcomputer when the external power supply is powered off, and key data processing and storage are achieved.

Further, a ferroelectric memory (FRAM) is used to store and retrieve parameters of the data model.

Further, a non-volatile memory (FLASH) is used to store system standby programs that may be invoked when a main program is lost.

Furthermore, the digital three-axis gyroscope is used for acquiring various postures of the vehicle in the driving process in real time, transmitting data to the data processing unit for analysis and judgment, and realizing real-time alarm of abnormal driving postures of the vehicle.

Furthermore, the positioning module adopts a 72-channel 8 th generation Ublox integrated module receiver, supports GPS/GLONASS/Beidou, has tracking sensitivity of-167 dBm and highest positioning accuracy of 2.5m, and further comprises a memory ram128M and a flash 64M.

Furthermore, the communication module adopts a GSM/GPRS remote M26 industrial-level communication module to support the GSM full-band 850/900/1800/1900 MHz.

The direct current conversion circuit comprises four parts which are an alternating current voltage conversion circuit, a rectification circuit, a filter circuit and a voltage stabilizing circuit respectively; the direct current conversion circuit completes voltage conversion through the AMS1117 adjustable voltage stabilizer; the peripheral circuit further comprises a power supply monitoring circuit, and the power supply monitoring circuit comprises a power supply monitoring chip TPS 3307.

Further, the FSK receiving circuit comprises a serial interface, a register and a receiver.

Drawings

FIG. 1 is a functional structure diagram of the integrated monitoring system for load and positioning information of a vehicle according to the present invention;

fig. 2 is a hardware system block diagram of the utility model is used for the load of vehicle and the integrated monitored control system of location information.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the integrated monitoring system for load and location information of a vehicle includes: peripheral hardware weighing sensor data acquisition module, data processing module, vehicle gesture judge module, orientation module and communication module, peripheral hardware weighing sensor data acquisition module includes: data interaction unit, signal amplification unit and signal filtering unit

The data processing module comprises: a power supply processing unit, a single-chip Microcomputer (MCU), a farad capacitor, a ferroelectric memory (FRAM), and a nonvolatile memory (FLASH);

the vehicle attitude determination module adopts: a digital three-axis gyroscope;

the positioning module adopts: positioning the chip;

the communication module adopts: GSM/GRPS industrial communication module and embedded SIM card.

The utility model discloses an in some embodiments, the data interaction unit adopts RS485 communication mode, realizes the data interaction of control terminal and peripheral hardware sensor through the SP3485 chip.

In other embodiments of the present invention, the signal amplification unit adopts a low-drift high-gain amplifier to amplify the current signal output by the sensing unit, so as to satisfy the requirement of the processing end.

In other embodiments of the present invention, the signal filtering unit filters the noise of the sensor output signal.

In other embodiments of the present invention, the power supply processing unit converts the ac power into the dc power through the full-bridge rectification circuit, and converts the dc power into the working voltage through the LM25968 chip.

In other embodiments of the present invention, the data processing module employs STM32F407VET6,

the STM32F407VET6 comprises a program bus, three data buses and four address buses, and peripheral 6 host serial ports, 2 multichannel buffer serial ports, 6 DMA controllers, 2 sixteen-bit hardware timers, a programmable memory bank switching module, a software programmable waiting register and an external bus operation general I/0 port.

In other embodiments of the utility model, farad electric capacity plays the power supply effect for the singlechip when external power supply power failure, realizes key data processing and preserves.

In other embodiments of the present invention, a ferroelectric memory (FRAM) is used to store and retrieve parameters of the data model.

In other embodiments of the present invention, a non-volatile memory (FLASH) is used to store system spares that may be invoked when a main program is lost.

The utility model discloses an in other embodiments, digital triaxial gyroscope is used for the various gesture of real-time acquisition vehicle in the driving process to with data transmission for data processing unit be used for analysis and judgement, realize the vehicle unusual real-time warning of the gesture of traveling.

In other embodiments of the utility model, the orientation module adopts 72 passageways, and 8 th generation ubox integrated module receiver supports GPS/GLONASS/big dipper, and tracking sensitivity-167 dBm, highest positioning accuracy 2.5m, characteristics still include memory ram128M, flash 64M.

In other embodiments of the present invention, the communication module adopts GSM/GPRS remote M26 industrial communication module, and supports the GSM full band 850/900/1800/1900 MHz.

In other embodiments of the present invention, the device further comprises a peripheral circuit, the peripheral circuit comprises a dc converting circuit,

the direct current conversion circuit comprises four parts, namely an alternating current voltage conversion circuit, a rectifying circuit, a filtering circuit and a voltage stabilizing circuit, and the direct current conversion circuit completes voltage conversion through the AMS1117 adjustable voltage stabilizer;

the peripheral circuit also comprises a power supply monitoring circuit which comprises a power supply monitoring chip TPS 3307.

In other embodiments of the present invention, the FSK receiver further comprises an FSK receiving circuit, wherein the FSK receiving circuit comprises a serial interface, a register, and a receiver.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A load and location information integrated monitoring system for a vehicle, comprising: the system comprises a peripheral weighing sensor data acquisition module, a data processing module, a vehicle posture judgment module, a positioning module and a communication module;

the peripheral weighing sensor data acquisition module comprises: the device comprises a data interaction unit, a signal amplification unit and a signal filtering unit;

the data processing module comprises: a power supply processing unit, a single-chip microcomputer, a farad capacitor, a ferroelectric memory and a nonvolatile memory;

the vehicle attitude determination module includes: a digital three-axis gyroscope;

the positioning module includes: positioning the chip;

the communication module includes: GSM/GRPS industrial communication module and ESIM chip.

2. The comprehensive monitoring system for the loading and positioning information of the vehicle as claimed in claim 1, wherein the data interaction unit adopts an RS485 communication mode and comprises an SP3485 chip.

3. The system of claim 1, wherein the signal amplification unit comprises a low drift high gain amplifier.

4. The integrated monitoring system for the loading and positioning information of vehicle as claimed in claim 1, wherein said power supply processing unit comprises a LM25968 chip.

5. The comprehensive monitoring system for the loading and positioning information of the vehicle as claimed in claim 1, wherein the data processing module adopts an STM32F407VET6, the STM32F407VET6 comprises a program bus, three data buses and four address buses, and 6 host serial ports, 2 multi-channel buffer serial ports, 6 DMA controllers, 2 sixteen-bit hardware timers, a programmable memory bank switching module, a software programmable wait register and an external bus operation general I/0 port are arranged outside.

6. The system of claim 1, wherein the positioning module is a 72 channel, 8 th generation ubox integrated module receiver.

7. The integrated monitoring system for load and location information of vehicle according to any one of claims 1 to 6, further comprising a peripheral circuit, wherein said peripheral circuit comprises a DC conversion circuit.

8. The system according to claim 7, wherein the DC converter circuit comprises an AC voltage converter circuit, a rectifier circuit, a filter circuit and a regulator circuit.

9. The integrated monitoring system for load and location information of vehicle as claimed in claim 7, wherein said peripheral circuit further comprises a power monitoring circuit, said power monitoring circuit comprises a power monitoring chip TPS 3307.

10. The system according to any one of claims 1 to 6, further comprising an FSK receiving circuit, wherein said FSK receiving circuit comprises a serial interface, a register and a receiver.

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