CN211401298U - Intelligent vehicle-mounted system based on FPGA - Google Patents

Abstract

The utility model relates to an intelligence vehicle mounted system based on FPGA, including FPGA, infrared camera, GPS orientation module, temperature sensor, humidity transducer, speedtransmitter, RTC clock drive circuit, RAM memory cell, FLASH memory cell, HDMI drive circuit, system clock circuit, power supply circuit and level conversion circuit and HDMI display. The utility model discloses the realization that can be better is to the speed of car driving in-process, position and the real time monitoring of car internal environment, and this system adopts the FPGA chip as central processing unit, and throughput is strong, low power dissipation, and the expansibility is strong.

Description

Intelligent vehicle-mounted system based on FPGA

Technical Field

The utility model relates to an intelligence on-vehicle technical field, especially an intelligence on-vehicle system based on FPGA.

Background

In recent years, the rapid development of social economy, particularly the development of the automobile industry, the production and sales of automobiles are increasing, and automobiles are also becoming more popular. The vehicle-mounted system is used as a part of the whole automobile, provides a plurality of services for people and assists people in driving. With the improvement of living standard, the demand of people on vehicle-mounted systems is continuously increased, and intelligent vehicle-mounted system products become the focus of attention of various large electronic manufacturers. In the process of driving an automobile, the speed and the position of the automobile, the temperature and the humidity of the internal environment of the automobile and the like are important information which is concerned by people and need to be acquired in time, and most of the existing vehicle-mounted systems do not consider the internal environment information of the automobile and lack the sensing capability of the internal environment information of the automobile. Meanwhile, due to the increase of functions of the vehicle-mounted system, the number of external devices connected with the vehicle-mounted system is increased, and the operation power consumption and the production cost of the system are increased.

Disclosure of Invention

In view of this, the utility model aims at providing an intelligence vehicle mounted system based on FPGA, realization that can be better is to the speed of car travel in-process, the real time monitoring of position and car internal environment, and this system adopts the FPGA chip as central processing unit, and throughput is strong, low power dissipation, and the expansibility is strong.

The utility model discloses a following scheme realizes: an intelligent vehicle-mounted system based on an FPGA comprises the FPGA, an infrared camera, a GPS positioning module, a temperature sensor, a humidity sensor, a speed sensor, an RTC clock driving circuit, an RAM storage unit, an FLASH storage unit, an HDMI driving circuit, a system clock circuit, a power circuit, a level conversion circuit and an HDMI display;

the infrared camera, the GPS positioning module, the temperature sensor, the humidity sensor and the speed sensor are electrically connected with the FPGA and are respectively used for transmitting the acquired infrared data, the GPS positioning data, the temperature information, the humidity information and the current speed information to the FPGA;

the RTC clock driving circuit is electrically connected with the FPGA and used for generating date and time of a real-time clock; the RAM storage unit and the FLASH storage unit are electrically connected with the FPGA and are respectively used for expanding the data storage space and the program storage space of the FPGA; the FPGA is connected to the HDMI display through the HDMI driving circuit and used for driving the HDMI display to work; the system clock circuit is electrically connected with the FPGA and used for providing clock drive for the whole system; the power circuit and the level conversion circuit are used for providing a stable power supply for the whole system.

Further, the chip of the FPGA adopts an XC7A200T chip.

Further, the RAM memory unit adopts an MT41J256M16HA-125 chip.

Further, the FLASH memory unit adopts an N25Q128A13EF840F chip.

Further, the HDMI driving circuit adopts a SiI9134 chip.

Further, the RTC clock driving circuit adopts a PCF8563 chip.

Further, the system clock driving circuit adopts a SiT9102 chip to output a200 MHz system clock.

Furthermore, the power circuit and the level conversion circuit adopt three chips, namely a TPS54620 chip, an MP1482DS chip and a TLV62130RGT chip.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a FPGA designs the system architecture as entire system's main control chip, its parallelism characteristics of make full use of, improves the wholeness ability of system greatly, compares with prior art, has characteristics such as flexibility height, reconstituability height, scalability is strong, the low power dissipation, the real-time nature is strong, and the simultaneous system adopts the modularized design, can be applicable to multiple on-vehicle environment.

Drawings

Fig. 1 is a schematic block diagram of a system according to an embodiment of the present invention.

Fig. 2 is a circuit diagram 1 of the FPGA chip and the externally-expanded RAM chip according to an embodiment of the present invention.

Fig. 3 is a circuit diagram 2 of the FPGA chip and the externally-extended RAM chip according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of the RAM chip MT41J256M16HA-125 according to the embodiment of the present invention.

Fig. 5 is a circuit diagram of a FLASH chip N25Q128a13EF840F according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of an RTC clock driving circuit according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a system clock driving circuit according to an embodiment of the present invention.

Fig. 8 is a circuit wiring diagram of the FPGA chip and the SiI9134 chip according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of an HDMI driving circuit according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of a power circuit and a level shift circuit according to an embodiment of the present invention.

Fig. 11 is a schematic diagram of an external interface of a sensor module according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As shown in fig. 1, the present embodiment provides an intelligent vehicle-mounted system based on an FPGA, which includes an FPGA, an infrared camera, a GPS positioning module, a temperature sensor, a humidity sensor, a speed sensor, an RTC clock driving circuit, an RAM storage unit, a FLASH storage unit, an HDMI driving circuit, a system clock circuit, a power circuit, a level conversion circuit, and an HDMI display;

the infrared camera, the GPS positioning module, the temperature sensor, the humidity sensor and the speed sensor are electrically connected with the FPGA and are respectively used for transmitting the acquired infrared data, the GPS positioning data, the temperature information, the humidity information and the current speed information to the FPGA;

the RTC clock driving circuit is electrically connected with the FPGA and used for generating date and time of a real-time clock; the RAM storage unit and the FLASH storage unit are electrically connected with the FPGA and are respectively used for expanding the data storage space and the program storage space of the FPGA; the FPGA is connected to the HDMI display through the HDMI driving circuit and used for driving the HDMI display to work; the system clock circuit is electrically connected with the FPGA and used for providing clock drive for the whole system; the power circuit and the level conversion circuit are used for providing a stable power supply for the whole system.

In this embodiment, the infrared camera may be installed at a position near the automobile data recorder, and is configured to collect a real-time image in front of the automobile and transmit the collected image to the FPGA main control chip for processing; the GPS positioning module is connected with an antenna, the GPS positioning module is used for positioning the position of the automobile, and the antenna is used for receiving and sending a GPS signal; the temperature sensor and the humidity sensor are used for acquiring the temperature and the humidity inside or outside the automobile; the speed sensor is used for detecting the running speed of the automobile; the HDMI display is used to display a real-time image in front of the car and superimpose information such as the current date and time, the current location of the car, the temperature and humidity inside or outside the car, and the speed at which the car is traveling.

In the embodiment, an XC7a200T FPGA chip is used as a main control chip, an external expansion RAM chip is responsible for expanding a data storage space of the FPGA, the model of the external expansion RAM chip is MT41J256M16HA-125, an external expansion FLASH chip is responsible for expanding a program storage space of the FPGA, and the model of the external expansion FLASH chip is N25Q128a13EF 840F. Fig. 2 and fig. 3 show the pin connection of the corresponding external RAM circuit in the FPGA chip, fig. 4 shows the pin connection of the RAM chip MT41J256M16HA-125, fig. 5 shows the pin connection of the FLASH chip N25Q128a13EF840F, and fig. 8 shows the connection pin of the FLASH chip in fig. 5 and the FPGA.

In this embodiment, the HDMI driving circuit employs a SiI9134 chip. Fig. 8 shows the pin connection between the FPGA main chip and the SiI9134 chip. As shown in fig. 9, which is a schematic diagram of an HDMI driving circuit, the FPGA main chip configures a SiI9134 chip through an I2C bus, and the SiI9134 chip supports a highest 1080P @60Hz resolution, so that the circuit has the advantages of simple design, stable performance, and low power consumption during operation.

In this embodiment, as shown in fig. 6, the RTC clock driving circuit used takes a PCF8563 chip as a core, and the FPGA main chip configures the PCF8563 chip through an I2C bus, so as to generate the date and time of the real-time clock, where the connection pins corresponding to the FPGA are shown in fig. 8.

In this embodiment, as shown in fig. 7, the adopted system clock driving circuit uses a SiT9102 chip as a core, and uses a capacitor to perform corresponding filtering processing, so as to achieve the purpose of providing stable clock driving for the whole system. The connection pins corresponding to the FPGA are shown in fig. 2.

In this embodiment, as shown in fig. 10, the power circuit and the level conversion circuit are used to generate various stable levels including 5.0V, 3.3V, 1.8V, 1.5V, etc. with TPS54620, MP1482DS, TLV62130RGT chips as cores, so that the whole system can operate effectively.

In this embodiment, the connection pins of the infrared camera, the GPS positioning module, the temperature sensor, the humidity sensor, and the speed sensor corresponding to the FPGA refer to fig. 11 and fig. 3.

It is worth mentioning that the utility model protects a hardware structure, as for the control method does not require protection. The above is only a preferred embodiment of the present invention. However, the present invention is not limited to the above embodiments, and any equivalent changes and modifications made according to the present invention do not exceed the scope of the present invention, and all belong to the protection scope of the present invention.

Claims (8)

1. An intelligent vehicle-mounted system based on an FPGA is characterized by comprising the FPGA, an infrared camera, a GPS positioning module, a temperature sensor, a humidity sensor, a speed sensor, an RTC clock driving circuit, an RAM storage unit, an FLASH storage unit, an HDMI driving circuit, a system clock circuit, a power circuit, a level conversion circuit and an HDMI display;

the infrared camera, the GPS positioning module, the temperature sensor, the humidity sensor and the speed sensor are electrically connected with the FPGA and are respectively used for transmitting the acquired infrared data, the GPS positioning data, the temperature information, the humidity information and the current speed information to the FPGA;

the RTC clock driving circuit is electrically connected with the FPGA and used for generating date and time of a real-time clock; the RAM storage unit and the FLASH storage unit are electrically connected with the FPGA and are respectively used for expanding the data storage space and the program storage space of the FPGA; the FPGA is connected to the HDMI display through the HDMI driving circuit and used for driving the HDMI display to work; the system clock circuit is electrically connected with the FPGA and used for providing clock drive for the whole system; the power circuit and the level conversion circuit are used for providing a stable power supply for the whole system.

2. The intelligent FPGA-based vehicle-mounted system according to claim 1, wherein the FPGA chip is XC7A200T chip.

3. The intelligent FPGA-based vehicle-mounted system of claim 1, wherein the RAM storage unit is implemented by an MT41J256M16HA-125 chip.

4. The intelligent vehicle-mounted system based on FPGA of claim 1, wherein the FLASH memory unit adopts an N25Q128A13EF840F chip.

5. The FPGA-based intelligent vehicle-mounted system of claim 1, wherein the HDMI driving circuit is a SiI9134 chip.

6. The intelligent FPGA-based vehicle-mounted system of claim 1, wherein the RTC clock driver circuit is implemented by a PCF8563 chip.

7. The intelligent FPGA-based vehicle-mounted system of claim 1, wherein the system clock driving circuit adopts a SiT9102 chip to output a200 MHz system clock.

8. The intelligent FPGA-based vehicle-mounted system of claim 1, wherein the power circuit and the level conversion circuit are three chips, namely a TPS54620 chip, an MP1482DS chip and a TLV62130RGT chip.

Images