CN212460349U - Embedded information fusion equipment - Google Patents
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- CN212460349U CN212460349U CN202021308748.5U CN202021308748U CN212460349U CN 212460349 U CN212460349 U CN 212460349U CN 202021308748 U CN202021308748 U CN 202021308748U CN 212460349 U CN212460349 U CN 212460349U
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Abstract
The utility model provides an embedded information fusion equipment, include: the device comprises a shell, a system circuit board and a circuit interface; the front panel comprises a status indicator light, a network port and a USB interface; the status indicator light is used for displaying the power supply state, the fault indication and the early warning information state; the network port is used for connecting the portable processing terminal and monitoring the working parameters and the state information of the equipment on line in real time; the USB interface is used for exporting stored data information of various equipment; the rear panel includes a plurality of circuit interfaces: the power supply comprises a power supply input interface, a power supply output interface, a communication interface, a signal input interface, a fuse and a power supply switch; the system circuit board comprises a plurality of circuit modules, including: the device is provided with a data external input interface, a bottom plate circuit, a signal conditioning card, a data acquisition card, a bus communication integrated card, a reserved slot position, an embedded processor control unit, a storage controller and a data memory, wherein all circuit modules are connected through a bus.
Description
Technical Field
The utility model belongs to the sensing measurement field, concretely relates to embedded information fusion equipment.
Background
In recent years, several information wars dominated by military forces of main countries of the army and the western world indicate that military equipment of each country with more and more perfect functions and higher automation and intelligence degrees become key factors for determining the victory or defeat of wars to a certain extent, and consequently, the system structure is increasingly complex, and a certain component is broken down, so that the whole system is often paralyzed, huge personnel and property losses are caused, and higher requirements are put forward on the equipment use guarantee, maintenance and management capability.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an embedded information fusion device, which can realize that the device can not obtain the information parameters of the required component under the existing conditions, and a sensor of a corresponding type is additionally arranged at the required part to obtain the state data of the component in real time when the component runs; the equipment control system can acquire the conditions of working information, self-checking information, state information and fault information, and can be directly accessed to a system data bus to realize the real-time monitoring function of state parameters; and the functions of data acquisition, conversion, analysis, classified storage and the like of the equipment state parameter information are realized.
The technical scheme of the utility model is that: an embedded information fusion device comprising: the device comprises a shell, a system circuit board and a circuit interface; the four fixed angles of the shell are respectively provided with a shock absorption foot pad, the shell comprises a front panel and a rear panel, and the rear panel of the shell is provided with the circuit interface; the system circuit board is mounted in the housing;
the front panel comprises a status indicator light, a network port and a USB interface; the status indicator light is used for displaying the power supply state, the fault indication and the early warning information state; the network port is used for connecting the portable processing terminal and monitoring the working parameters and the state information of the equipment on line in real time; the USB interface is used for exporting stored data information of various equipment;
the rear panel includes a plurality of circuit interfaces: the power supply comprises a power supply input interface, a power supply output interface, a communication interface, a signal input interface, a fuse and a power supply switch;
the system circuit board comprises a plurality of circuit modules, including: the device is provided with a data external input interface, a bottom plate circuit, a signal conditioning card, a data acquisition card, a bus communication integrated card, a reserved slot position, an embedded processor control unit, a storage controller and a data memory, wherein all circuit modules are connected through a bus.
Further, the shell is an aluminum alloy integrated shell.
Further, the power input interface is used for connecting an external power supply and providing a 24V direct-current power supply for the data terminal; and a power output interface is reserved for outputting direct-current voltage and supplying power to the additionally arranged sensor.
Further, the communication interface comprises RS232, RS485 and CAN bus interfaces and is used for being connected with an equipment control bus; the signal input interface is connected with an additional sensor or a reserved detection port and used for signal detection; the fuse is used for protecting the internal circuit, and the power switch is used for switching on or switching off the external power supply of the data terminal.
Further, the data acquisition card is connected with the embedded processor control unit through an SPI bus; the bus communication integrated card is connected with the processor control unit through a bottom plate communication bus to communicate the busThe integrated card is integrated on the MCU board; the reserved slot position and the embedded processor control unit are connected through a bottom plate I2C, bus connection; and establishing connection of the embedded processor control unit bottom plate.
Further, the signal conditioning card comprises: the analog signal conditioning unit is used for receiving an analog signal and filtering the signal; the digital IO isolation unit is used for receiving the digital signals and isolating and limiting the current of the digital signals; and the voltage level isolation unit is used for receiving the direct current signal and carrying out separation, conversion and amplification processing on the direct current signal.
Further, the data acquisition card comprises: the ADC chip is used for acquiring multi-channel data; and the SPI bus system is used for connecting with the embedded control unit.
Further, the bus communication integrated card includes: the RS232 interface is used for receiving RS232 interface data; the RS485 interface is used for receiving the data of the RS485 interface; the CAN bus interface is used for receiving CAN bus data; and the function board is used for integrating the RS232 interface, the RS485 interface and the CAN bus interface.
Further, the embedded processor control unit adopts an iMX6Quad processor.
Furthermore, the storage controller and the data memory comprise a RAM memory and a Flash memory.
Has the advantages that:
the utility model provides an equip embedded information fusion equipment hardware, the information resource demand is equipped in the antichemical of integrated analysis, combines the information fusion technique with equipping organically, and multiple techniques such as the many sensory information fusion of application, embedded, real-time status monitoring, logic analysis will form perfect equipment basic information acquisition system, solve the difficult problem that equipment information acquireed, excavates, examines and merge.
Drawings
FIG. 1 is a diagram of an internal structure of an embedded information fusion device;
FIG. 2 analog signal input conditioning circuit;
FIG. 3 is an input-output signal isolation circuit;
FIG. 4 is a voltage isolation module circuit;
FIG. 5 data collection principle;
FIG. 6 iMX6Quad hardware resources;
fig. 7 CAN bus interface circuit schematic.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work belong to the protection scope of the present invention based on the embodiments of the present invention.
According to an embodiment of the utility model, an embedded information fusion equipment is provided, which can realize that for the condition that the equipment can not obtain the information parameters of the required component under the existing condition, a sensor of a corresponding type is additionally arranged at the required part, and the state data of the component in operation is obtained in real time;
the equipment control system acquires the conditions of working information, self-checking information, state information and fault information, and can be directly accessed to a system data bus in the equipment to realize the real-time monitoring function of state parameters; and the functions of data acquisition, conversion, analysis, classified storage and the like of the equipment state parameter information are realized.
The embedded information fusion equipment comprises a shell, a system circuit board and a circuit interface;
the embedded information fusion equipment comprises an aluminum alloy integrated shell and has shock and vibration resistance. The metal material of the shell adopts rust-proof and corrosion-resistant materials and is subjected to plating treatment. Four fixed angles of shell respectively have a shock attenuation callus on the sole, can effectively improve shock attenuation intensity.
The shell comprises a front panel and a rear panel, and the circuit interface is arranged on the rear panel of the shell;
the front panel comprises a status indicator light, a network port and a USB interface. The status indicator light is used for displaying information states such as power supply state, fault indication, early warning and the like; the network port is used for connecting the portable processing terminal and monitoring working parameters and state information of the chemical defense equipment on line in real time; the USB interface is used for exporting stored data information of various equipment.
The circuit interface on the back panel comprises a power input/output interface, a communication interface, a signal input interface, a fuse and a power switch. The power input interface is used for connecting an external power supply and providing a 24V direct-current power supply for the data terminal; a power output interface is reserved, and direct-current voltage can be output and used for supplying power to the additionally arranged sensor; the communication interface comprises RS232, RS485 and CAN bus interfaces and is used for being connected with the equipment control bus; the signal input interface can be connected with an additional sensor or a reserved detection port and is used for signal detection; the fuse is used for protecting an internal circuit and can be conveniently replaced when short circuit, open circuit, undervoltage or overvoltage and the like occur; the power switch can turn on or off the external power supply of the data terminal.
The system circuit board within the device housing is shown in fig. 1.
The system circuit board comprises a plurality of circuit modules, including: the data terminal is provided with a data external input interface, a bottom plate circuit, a signal conditioning card, a data acquisition card, a bus communication integrated card, a reserved slot position, an embedded processor control unit, a storage controller and a data memory, wherein all modules are connected through a bus. The data acquisition card is connected with the embedded processor control unit through an SPI bus; the bus communication card is connected with the processor module through a bottom plate communication bus, and the bus communication card is integrated on the MCU board; the reserved slot position and the embedded processor control unit are connected through a bottom plate I2C, bus connection; the embedded processor control unit establishes connection with the bottom plate according to the resource definition of the embedded processor control unit; each functional module can be inserted and fixed from top to bottom through the two reinforcing frames.
The data acquisition card is used for realizing a data acquisition function, and the storage controller and the data memory are used for realizing an information storage function; the bus communication integrated card is used for realizing a bus communication function. The method comprises the following specific steps:
signal conditioning card
The data conditioning card is designed into a functional board, mainly comprises an analog signal conditioning circuit, an isolation circuit of a digital IO signal and a voltage level isolation unit, and specifically comprises 8 paths of digital IO signal isolation conditioning circuits, 4 paths of voltage signal isolation conditioning circuits, 4 paths of flow signal isolation conditioning circuits, 4 paths of temperature signal isolation conditioning circuits, 4 paths of pressure signal isolation conditioning circuits and 4 paths of current signal isolation conditioning circuits. The input signal is physically isolated by the signal isolation circuit, and then processed by the conditioning circuit to analog and digital signals within the receiving range of the acquisition module, which is connected to the bottom plate by the serial bus.
(1) Analog signal conditioning unit
The analog signal conditioning unit mainly comprises a 20-path input end voltage signal conditioning circuit, an externally input analog signal is subjected to voltage division processing through a high-precision resistor, the input voltage range of 4-path flow signals and 4-path temperature signals is 0-5V, the input voltage range of 4-path pressure signals is 0-10V, the input voltage range of 4-path voltage signals is 0-36V, and the input signal of 0-2V is conditioned through the analog signal conditioning unit; the input voltage range of the 4 paths of current signals is 2.5 +/-1V, the input signals are conditioned into 1.25 +/-0.5V through the analog signal conditioning circuit and then sent to the ADC to finish data sampling.
Because some high-frequency noise is introduced into the input signal during the transmission process of the test cable, the noise signal may cause misjudgment of the test signal, and may also affect the operation of the whole signal conditioning circuit in severe cases. Therefore, as shown in fig. 2, the input signal conditioning circuit adopts a low-pass filter circuit, which can effectively suppress high-frequency interference signals, and includes a voltage-dividing resistor, a feedback resistor, an operational amplifier, and a filter capacitor; the filter capacitance value (3, 6) is selected according to the frequency of the test signal, and the amplification gain of the circuit is adjusted by adjusting the feedback resistor (2, 5). The divider resistor 1 adopts a 0.1% high-precision thin film resistor, the operational amplifier 4 adopts a precision JEFT type operational amplifier AD8512, the offset voltage temperature drift is 1 muV/DEG C, the characteristics of low input bias current (25pA), low input voltage current noise (8 nV/V Hz), low distortion factor (0.0005%), low noise (0.0005%/1 KHz) and the like are met, and the high-precision test requirement is met. After the measured input signal is conditioned by the analog conditioning circuit and the circuit optimization design, the precision can reach 0.15%.
(2) Digital IO isolation unit
The digital IO isolation circuit principle is shown in fig. 3. Totally, 8 paths of digital IO signals are designed, a high-speed optical coupler isolator 7(6N137) is used for isolation, the isolation voltage of the 6N137 can reach 5000V at most, the switching speed reaches 10MHz, and input signals are converted into TTL level signals. The digital IO interface of the acquisition module is protected, the driving capability of a digital IO signal is enhanced, and the input end of each photoelectric coupler is connected in series with a 500-ohm current-limiting resistor 8 for current limiting.
(3) Voltage level isolation unit
The unit circuit is designed as shown in fig. 4, and mainly realizes isolation, conversion and amplification processing of direct current signals, and ground wire interference suppression and data isolation and acquisition of analog signals.
The isolator adopts an ISO124 precision isolation amplifier 9, the effective value of continuous isolation voltage reaches 1500V, the voltage input range reaches 100V, the maximum nonlinear characteristic is 0.01% FSR, the gain error is 0.05%/FSR, the signal bandwidth is 50kHz, the offset voltage temperature drift is 200 muV/DEG C, the temperature coefficient is +/-10 ppm/DEG C, the working temperature range is-25 ℃ to +85 ℃, the storage temperature range is-40 ℃ to +85 ℃, and the peripheral circuit is simple and convenient to use. After the measured signal is conditioned by the voltage level isolation circuit and the circuit optimization design, the precision can reach 0.1%.
The voltage level isolation circuit adopts a magnetoelectric isolation hybrid circuit, and an input signal enters an analog signal isolation amplifier after being filtered by a low-pass filter 10. The module is very convenient to use and does not need zero point and gain adjustment.
(II) data acquisition card
The data acquisition card mainly converts the conditioned analog signals into digital signals which can be processed by the embedded processor and transmits the digital signals to the control unit of the embedded processor for processing through USB communication of the bottom plate.
In order to meet the sampling precision and the test requirement, a high-precision 16-bit sigma-delta ADC acquisition chip AD7709(11) is adopted, a single chip is provided with 4 input channels, 2 fully-differential input channels can be configured, the power consumption is 3.84mW, an SPI communication interface is arranged, and the effective reading is 6 coded values. The reference voltage chip adopts ADR381, and the maximum output voltage precision is 2.5V +/-0.06 mV. The single coding value (resolution) of the ADC can reach 0.04mV, so the least significant acquisition value reaches 0.24mV, and the accuracy of the acquired analog voltage signal can reach 0.01%. The data acquisition principle is shown in fig. 5.
The ADC acquisition chip AD7709(11) is connected with the SPI bus system after being converted into digital signals (12), the digital signals are converted into data streams, and then the data streams are connected with the MCU processor chip 13.
(III) Embedded processor control Unit
The embedded processor selects a iMX6Quad processor 13 of Feichka, an i.MX6 series application processor is a multi-core platform with expandable functions and performances, and comprises a single-core, double-core and four-core series product based on an ARM Cortex architecture, the architecture comprises a Cortex-A9 core, a Cortex-A9+ Cortex-M4 core combination and a solution based on Cortex-A7, and the working frequency can reach 1.2 GHz.
iMX6Quad processor has a powerful hardware configuration and rich application interfaces:
a quad-core 1.2GHz processor;
1GB capacity DDR2 memory;
2-way LVDS display interface;
1-channel I2C communication port;
2 paths of RS232 serial ports;
1 channel of SD card slot;
2-path CAN communication port;
2-path USB communication port;
1 path of network communication port;
flash with capacity of 8 GB;
a 1-way PCIe interface;
multiple GPIO interfaces, etc.
iMX6 the operating temperature range of the Quad processor is up to: -25 ℃ to 45 ℃, storage temperature: the temperature of-40 ℃ to 80 ℃ can meet the environmental adaptability requirement of industry and military products, and the hardware resources are shown in figure 6.
(IV) information storage module
The storage module comprises two parts, wherein one part is an RAM (random access memory) which is mainly used for storing running data of the embedded processor and is responsible for exchanging data with the Flash external memory, the data can be read and written at any time and is high in speed, and the data is lost after power failure; one part is a Flash memory, which can only read out the data stored in advance, and is characterized in that the data cannot be changed once being stored, the speed is slow, and the data cannot be lost after power failure.
RAM memory employs DDR2, DDR2 has twice the pre-read capability of a generation DDR memory and can run at 4 times the speed of the internal control bus. The capacity of each MT47H128M16 is 2GB and the content capacity of each 4 MT47H128M16 can reach 8GB by using a Meiguang DDR2 chip MT47H128M16 as a memory.
Nand-type FLASH is widely used due to its fast read-write speed, high storage density, erasability, non-volatility, and convenient command, address, data line multiplexing and interface. The K9FAG08 has the capacity of 2GB, and the storage capacity can reach 8GB by adopting 4K 9FAG 08. The K9FAG08 has an 8-way I/O address multiplexing capability that greatly reduces pin count and allows system upgrades to future system template designs that maintain consistency. In addition, K9FAG08 can be replaced by K9FBG08, K9FCG08, and K9FBG08 has 4GB storage capacity, and K9FCG08 has 8GB capacity, can be as required, changes storage capacity, facilitates the system upgrade.
(V) bus communication integrated card
The bus communication module integrates the communication functions of RS232, RS485 and CAN buses into a functional board and is connected to the embedded processor module through a special data communication bus of the bottom board. RS232, RS485 and CAN functions are modularized in design, and CAN be flexibly increased and cut according to needs.
The embedded processing module is provided with a plurality of RS232 communication interfaces, and the TTL interface is converted into an RS232 standard interface by adopting an MAX232 controller, so that the embedded processing module is conveniently connected with an external device. Converting an RS232 interface into an RS485 interface by adopting an MAX485 controller;
in order to meet the CAN bus test requirement, a 2-channel CAN bus communication interface circuit 17 is designed to support two ports to independently operate a CAN network or bridge. CAN controller 14 employs SJA1000, provides bus arbitration and error detection functionality, and is capable of automatically correcting and retransmitting when an error is detected, supporting the CAN2.0b protocol.
The CAN transceiver 16 adopts a PCA82C250 chip, and meets the design requirement of high-speed communication (1Mbps) application. The system has the capability of resisting transient interference in an automobile environment, protecting a bus and reducing Radio Frequency Interference (RFI) by slope control. As a differential receiver, is resistant to a wide range of common mode interference, electromagnetic interference (EMI). The CAN controller provides differential transmitting capability for the bus and differential receiving capability for the CAN controller, and conforms to the standard of ISO 11898.
In order to further enhance the anti-interference capability of the CAN bus node, the CAN controller (14) and the CAN transceiver (16) are connected by an isolator (15). The stability and the safety of the node are improved. The CAN bus interface circuit is shown in fig. 7.
The circuit interface of the equipment is an aerial plug interface, and is divided into 4 aerial plugs according to the signal types and purposes, wherein the 4 aerial plugs comprise a power input aerial plug, a communication interface aerial plug, a signal input aerial plug and a power output aerial plug.
The power supply input aviation plug is used for connecting an external power supply, only has positive and negative signals, adopts a two-core aviation plug, and has the model number of JY27513E08F98PN and the single-core rated current of 7.5A.
The communication interface aviation plug is used for bus communication, comprises RS232, RS485 and CAN buses, has 11 signals in total, adopts a 13-core aviation plug, and has the model number of JY27513E10F35 PN.
The signal input aviation plug is used for detecting and connecting signals such as current, voltage, temperature, pressure, flow, digital IO and the like, has 30 signals in total, adopts a 37-core aviation plug, and has the model number of JY27513E14F35 PN.
The power supply output aviation plug is used for supplying power to the sensor, and adopts a 10-core aviation plug, and the model number is JY27513E12F98 PN. The definition of the navigation plug is shown in the following table.
TABLE 1 definition table of interface for host computer of equipment
Although illustrative embodiments of the invention have been described above to facilitate the understanding of the invention by those skilled in the art, it should be understood that the invention is not limited to the scope of the embodiments, and that various changes will become apparent to those skilled in the art once they are within the spirit and scope of the invention as defined and defined in the appended claims.
Claims (10)
1. An embedded information fusion device, comprising: the device comprises a shell, a system circuit board and a circuit interface; the four fixed angles of the shell are respectively provided with a shock absorption foot pad, the shell comprises a front panel and a rear panel, and the rear panel of the shell is provided with the circuit interface; the system circuit board is mounted in the housing;
the front panel comprises a status indicator light, a network port and a USB interface; the status indicator light is used for displaying the power supply state, the fault indication and the early warning information state; the network port is used for connecting the portable processing terminal and monitoring the working parameters and the state information of the equipment on line in real time; the USB interface is used for exporting stored data information of various equipment;
the rear panel includes a plurality of circuit interfaces: the power supply comprises a power supply input interface, a power supply output interface, a communication interface, a signal input interface, a fuse and a power supply switch;
the system circuit board comprises a plurality of circuit modules, including: the device is provided with a data external input interface, a bottom plate circuit, a signal conditioning card, a data acquisition card, a bus communication integrated card, a reserved slot position, an embedded processor control unit, a storage controller and a data memory, wherein all circuit modules are connected through a bus.
2. The embedded information fusion device according to claim 1, characterized in that: the shell is an aluminum alloy integrated shell.
3. The embedded information fusion device according to claim 1, characterized in that:
the power input interface is used for connecting an external power supply and providing a 24V direct-current power supply for the data terminal; and a power output interface is reserved for outputting direct-current voltage and supplying power to the additionally arranged sensor.
4. The embedded information fusion device according to claim 1, characterized in that:
the communication interface comprises RS232, RS485 and CAN bus interfaces and is used for being connected with the equipment control bus; the signal input interface is connected with an additional sensor or a reserved detection port and used for signal detection; the fuse is used for protecting the internal circuit, and the power switch is used for switching on or switching off the external power supply of the data terminal.
5. The embedded information fusion device according to claim 1, characterized in that:
the data acquisition card is connected with the embedded processor control unit through an SPI bus; the bus communication integrated card is connected with the processor control unit through a bottom plate communication bus, and the bus communication integrated card is integrated on the MCU board; the reserved slot position and the embedded processor control unit are connected through a bottom plate I2C, bus connection; and establishing connection of the embedded processor control unit bottom plate.
6. The embedded information fusion device according to claim 1, characterized in that:
the signal conditioning card comprises: the analog signal conditioning unit is used for receiving an analog signal and filtering the signal; the digital IO isolation unit is used for receiving the digital signals and isolating and limiting the current of the digital signals; and the voltage level isolation unit is used for receiving the direct current signal and carrying out separation, conversion and amplification processing on the direct current signal.
7. The embedded information fusion device according to claim 1, characterized in that:
the data acquisition card comprises: the ADC chip is used for acquiring multi-channel data; and the SPI bus system is used for connecting with the embedded control unit.
8. The embedded information fusion device according to claim 1, characterized in that:
the bus communication integrated card comprises: the RS232 interface is used for receiving RS232 interface data; the RS485 interface is used for receiving the data of the RS485 interface; the CAN bus interface is used for receiving CAN bus data; and the function board is used for integrating the RS232 interface, the RS485 interface and the CAN bus interface.
9. The embedded information fusion device according to claim 1, characterized in that:
the embedded processor control unit employs iMX6Quad processors.
10. The embedded information fusion device according to claim 1, characterized in that:
the storage controller and the data memory comprise an RAM memory and a Flash memory.
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| CN202021308748.5U CN212460349U (en) | 2020-07-07 | 2020-07-07 | Embedded information fusion equipment |
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| CN202021308748.5U CN212460349U (en) | 2020-07-07 | 2020-07-07 | Embedded information fusion equipment |
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