CN211741881U - Signal monitoring transmission device based on FPGA - Google Patents
Signal monitoring transmission device based on FPGA Download PDFInfo
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- CN211741881U CN211741881U CN202020536218.XU CN202020536218U CN211741881U CN 211741881 U CN211741881 U CN 211741881U CN 202020536218 U CN202020536218 U CN 202020536218U CN 211741881 U CN211741881 U CN 211741881U
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Abstract
The utility model provides a signal monitoring transmission device based on FPGA, belongs to industrial control technical field, concretely relates to signal monitoring transmission device. The utility model provides a current monitoring field sensor longer to centralized control room circuit, produce decay and disturbance easily in signal transmission process, influence control system's control accuracy's problem. The utility model discloses the conversion is handled to sensor signal simultaneously to simultaneous processing multichannel sensor signal to carry out signal transmission through the internet, effectually avoided the loss and the interference that cause the signal among the long distance transmission process, the effectual accuracy that improves the signal, the signal that adopts display screen sensor to gather simultaneously shows in real time, and the chip advantage that utilizes field programmable gate array FPGA can handle multichannel polytype sensor signal, can reduce the components and parts quantity and the volume of equipment by a wide margin, thereby reduce equipment cost. The utility model is suitable for a sensor signal transmission uses.
Description
Technical Field
The utility model belongs to the technical field of industrial control, concretely relates to signal monitoring transmission device.
Background
At present, with the continuous upgrading of the industrial automation level in recent years, higher requirements are put forward on signal monitoring and control precision of industrial control. The continuous increase of the types and the number of the industrial sensors brings inconvenience to the unified monitoring of signals; the monitoring field sensor has a long line to the centralized control room, so that attenuation and disturbance are easily generated in the signal transmission process, and the control precision of the whole industrial control system is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve current monitoring field sensor longer to centralized control room circuit, produce decay and disturbance easily in signal transmission process, influence control system's control accuracy's problem, provide a signal monitoring transmission device based on FPGA.
The utility model discloses a signal monitoring transmission device based on FPGA, including power 1, touch-control display screen 2, ethernet interface 3, sensor signal conversion circuit 4, analog signal filter circuit 5, FPGA unit and data memory 9;
a plurality of signal input ends of the sensor signal conversion circuit 4 are respectively connected with signal output ends of a plurality of sensors;
the sensor signal conversion circuit 4 converts the received sensor signal into a voltage signal of 0-1V and transmits the voltage signal to the signal input end of the analog signal filter circuit 5;
the analog signal filter circuit 5 performs RC filtering and amplitude limiting on the received signal and transmits the signal to the signal input end of the FPGA unit;
the FPGA unit is used for performing analog-to-digital conversion on the received signals and sending the converted signals to the data memory 9;
simultaneously sending a driving signal to the touch display screen 2 and the Ethernet interface 3;
the touch display screen 2 displays signals in the data storage 9;
the Ethernet interface 3 transmits the signals in the data storage 9 to the Internet;
the data memory 9 stores the received signal;
the power supply 1 is used for supplying power to the sensor signal conversion circuit 4, the analog signal filter circuit 5 and the FPGA unit.
Further, the FPGA unit includes an XADC circuit 6, a touch display screen driving circuit 7, and an ethernet driving circuit 8;
the XADC circuit 6 performs analog-to-digital conversion on the received multiple signals to acquire digital signals, and sends the digital signals to the data memory 9;
the touch display screen driving circuit 7 is used for driving the touch display screen 2;
the ethernet driver circuit 8 is used to drive the ethernet interface 3.
Further, the sensor signal conversion circuit 4 is implemented by an RCV420 chip.
Further, the analog signal filter circuit 5 adopts a second-order RC filter mode.
Further, the FPGA unit is realized by XC7Z020-1CLG400C chips.
Further, the sensor signal conversion circuit 4 includes 16 signal input terminals.
The utility model discloses the conversion is handled to sensor signal simultaneously to simultaneous processing multichannel sensor signal to carry out signal transmission through the internet, effectually avoided the loss and the interference that cause the signal among the long distance transmission process, the effectual accuracy that improves the signal, the signal that adopts display screen sensor to gather simultaneously shows in real time, and the chip advantage that utilizes field programmable gate array FPGA can handle multichannel polytype sensor signal, can reduce the components and parts quantity and the volume of equipment by a wide margin, thereby reduce equipment cost. The sensor signals are displayed on the touch display screen and transmitted through the Ethernet, and the problems of unified monitoring and transmission of various sensor signals are effectively solved.
Drawings
Fig. 1 is a schematic structural diagram of the axisymmetric vector polarized light obtaining apparatus of the present invention.
Detailed Description
The technical solutions 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, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The first embodiment is as follows: the embodiment is described below with reference to fig. 1, and the signal monitoring and transmitting device based on the FPGA according to the embodiment includes a power supply 1, a touch display screen 2, an ethernet interface 3, a sensor signal conversion circuit 4, an analog signal filter circuit 5, an FPGA unit, and a data memory 9;
a plurality of signal input ends of the sensor signal conversion circuit 4 are respectively connected with signal output ends of a plurality of sensors;
the sensor signal conversion circuit 4 converts the received sensor signal into a voltage signal of 0-1V and transmits the voltage signal to the signal input end of the analog signal filter circuit 5;
the analog signal filter circuit 5 performs RC filtering and amplitude limiting on the received signal and transmits the signal to the signal input end of the FPGA unit;
the FPGA unit is used for performing analog-to-digital conversion on the received signals and sending the converted signals to the data memory 9;
simultaneously sending a driving signal to the touch display screen 2 and the Ethernet interface 3;
the touch display screen 2 displays signals in the data storage 9;
the Ethernet interface 3 transmits the signals in the data storage 9 to the Internet;
the data memory 9 stores the received signal;
the power supply 1 is used for supplying power to the sensor signal conversion circuit 4, the analog signal filter circuit 5 and the FPGA unit.
In the embodiment, the sensor signal conversion unit converts 16 paths of various sensor signals into 0-1V voltage signals and is connected with the analog signal filtering unit through a circuit, and the analog signal filtering unit transmits the voltage signals to the FPGA unit after RC filtering and amplitude limiting processing. The FPGA unit controls the XADC circuit, drives the touch display screen and the Ethernet interface. The FPGA unit circularly scans 16 input ports through a multiplexing XADC circuit, converts an analog quantity signal into a digital quantity signal and stores the digital quantity signal in a data storage unit; the FPGA unit reads data from the data storage unit through driving and displays the data on the touch display screen; the FPGA unit converts data into an Ethernet data packet through driving, and sends the Ethernet data packet to a control system of the centralized control room through an Ethernet interface.
Further, the FPGA unit includes an XADC circuit 6, a touch display screen driving circuit 7, and an ethernet driving circuit 8;
the XADC circuit 6 performs analog-to-digital conversion on the received multiple signals to acquire digital signals, and sends the digital signals to the data memory 9;
the touch display screen driving circuit 7 is used for driving the touch display screen 2;
the ethernet driver circuit 8 is used to drive the ethernet interface 3.
Further, the sensor signal conversion circuit 4 is implemented by an RCV420 chip.
Further, the analog signal filter circuit 5 adopts a second-order RC filter mode.
Further, the FPGA unit is realized by XC7Z020-1CLG400C chips.
Further, the sensor signal conversion circuit 4 includes 16 signal input terminals.
The device is used for collecting, monitoring and transmitting signals of an industrial sensor in real time, and a schematic diagram of the device is shown in figure 1. The device comprises a power supply, a sensor signal conversion unit, an analog signal filtering unit, an FPGA unit, a data storage unit, a touch display screen and an Ethernet interface.
In the technical scheme, a power supply supplies power to each unit, sensor signals are converted into 0-1V voltage signals through a signal conversion unit (different types of sensors correspond to different signal conversion units), then the voltage signals are transmitted to an FPGA unit after being filtered and limited by an analog filtering unit RC, a multiplexing ADC circuit circularly scans 16 input ports, analog quantity signals are sequentially converted into corresponding digital quantity signals and stored in a register, 16-bit data are read from the register through a program instruction, and 12-bit effective bits are obtained and stored in a data storage unit after being converted. The data is then processed in two ways: on one hand, the FPGA unit reads data in the data storage unit through a driving program and displays the data on a touch display screen, and corresponding sensor types and alarm values can be selected on the touch display screen, so that monitoring on various types of signals is realized; and on the other hand, the FPGA unit is sent to a control system of the centralized control room through an Ethernet interface.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (6)
1. A signal monitoring and transmitting device based on FPGA is characterized by comprising a power supply (1), a touch display screen (2), an Ethernet interface (3), a sensor signal conversion circuit (4), an analog signal filter circuit (5), an FPGA unit and a data memory (9);
a plurality of signal input ends of the sensor signal conversion circuit (4) are respectively connected with signal output ends of a plurality of sensors;
the sensor signal conversion circuit (4) converts the received sensor signal into a voltage signal of 0-1V and transmits the voltage signal to the signal input end of the analog signal filter circuit (5);
the analog signal filtering circuit (5) transmits the received signal to the signal input end of the FPGA unit after RC filtering and amplitude limiting processing;
the FPGA unit is used for carrying out analog-to-digital conversion on the received signals and sending the converted signals to the data memory (9);
simultaneously sending a driving signal to the touch display screen (2) and the Ethernet interface (3);
the touch display screen (2) displays signals in the data memory (9);
the Ethernet interface (3) transmits the signals in the data storage (9) to the Internet;
the data memory (9) stores the received signals;
the power supply (1) is used for supplying power to the sensor signal conversion circuit (4), the analog signal filter circuit (5) and the FPGA unit.
2. The FPGA-based signal monitoring transmission device of claim 1, wherein the FPGA unit comprises an XADC circuit (6), a touch display screen driving circuit (7) and an Ethernet driving circuit (8);
the XADC circuit (6) performs analog-to-digital conversion on the received multiple channels of signals to acquire digital signals, and sends the digital signals to the data memory (9);
the touch display screen driving circuit (7) is used for driving the touch display screen (2);
the Ethernet drive circuit (8) is used for driving the Ethernet interface (3).
3. The FPGA-based signal monitoring and transmitting device of claim 1 or 2, wherein the sensor signal conversion circuit (4) is realized by an RCV420 chip.
4. The FPGA-based signal monitoring transmission device of claim 1 or 2, wherein the analog signal filtering circuit (5) adopts a second-order RC filtering mode.
5. The FPGA-based signal monitoring transmission device of claim 2, wherein the FPGA unit is implemented by XC7Z020-1CLG400C chips.
6. The FPGA-based signal monitoring transmission device of claim 1, wherein the sensor signal conversion circuit (4) comprises 16 signal inputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020536218.XU CN211741881U (en) | 2020-04-13 | 2020-04-13 | Signal monitoring transmission device based on FPGA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020536218.XU CN211741881U (en) | 2020-04-13 | 2020-04-13 | Signal monitoring transmission device based on FPGA |
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| Publication Number | Publication Date |
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| CN211741881U true CN211741881U (en) | 2020-10-23 |
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| CN202020536218.XU Active CN211741881U (en) | 2020-04-13 | 2020-04-13 | Signal monitoring transmission device based on FPGA |
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| CN (1) | CN211741881U (en) |
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