Intelligent voice display screen applied to tobacco leaf purchasing

Abstract

The invention relates to the field of display screens, and particularly provides an intelligent voice display screen applied to tobacco leaf purchasing, which comprises a weighing all-in-one machine, and is characterized in that the weighing all-in-one machine is connected with an HDMI interface unit, the HDMI interface unit is connected with a color image-text control card unit, and the color image-text control card unit is connected with the weighing all-in-one machine. The color image-text control card unit is connected with the power supply unit, the highlight color LED image-text display function unit, the voice synthesis unit, the voice playing unit and the key operation function unit; the color image-text control card unit is further connected with an HDMI interface unit and a highlight color LED image-text display function unit, and the key operation function unit is further connected with a voice playing unit. Compared with the prior art, tobacco growers can clearly know the number of baskets, grade and weight of tobacco leaves, and the transaction transparency requirement can be met.

Description

Technical Field

[0001] The invention relates to the field of display screens, and specifically provides an intelligent voice display screen used for tobacco leaf purchasing. Background Art

[0002] The intelligent voice display screen is a voice and display device used by tobacco stations to display tobacco grade, unit price, weight and other information in real time during the daily tobacco leaf purchasing process.

[0003] The functional areas of the tobacco station purchasing area are generally divided into: tobacco incoming area, grading area, classification area, weighing area, storage area, tobacco withdrawal area / tobacco farmer observation area, etc.

[0004] During the tobacco leaf delivery process, in order to ensure the standardization of the purchase, personnel in different functional areas cannot contact each other. Usually, tobacco farmers need to wait in the tobacco farmer observation area during the delivery period and are not allowed to enter the purchase area; graders need to grade tobacco leaves in the grading area during the purchase period and are not allowed to communicate with tobacco farmers. To the greatest extent possible, the standardization and safety of the tobacco leaf purchase process are guaranteed, and fairness and transparency of the transaction are guaranteed in the process of tobacco farmers' delivery / tobacco station purchase, and the interests of both tobacco farmers and tobacco stations are protected.

[0005] Since there is some distance between the weighing area and the tobacco farmers' observation area, tobacco farmers cannot clearly know the number of baskets, grade and weight of their tobacco leaves. This situation also makes it impossible to meet the aforementioned transaction transparency requirements. Therefore, a method to solve this problem is needed. Summary of the invention

[0006] The present invention aims at the deficiencies of the above-mentioned prior art and provides a highly practical intelligent voice display screen for tobacco leaf purchasing.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] An intelligent voice display screen used for tobacco leaf procurement, comprising an integrated weighing machine, the integrated weighing machine is connected to an HDMI interface unit, the HDMI interface unit is connected to a color graphic control card unit, the color graphic control card unit is connected to a power supply unit, a high-brightness color LED graphic display function unit, a voice synthesis unit, a voice playback unit and a key operation function unit;

[0009] The color graphic control card unit is also connected to an HDMI interface unit and a high-brightness color LED graphic display function unit, and the key operation function unit is also connected to a voice playback unit.

[0010] Furthermore, the HDMI interface unit is electrically connected to the weighing machine via an HDMI high-definition signal cable, and receives the weighing area monitoring video image signal, tobacco weighing information data, tobacco station information and tobacco farmer information from the weighing machine.

[0011] The HDMI interface unit is electrically connected to the color graphics control card, and the image signal is transmitted from the HDMI interface unit to the color graphics control card unit.

[0012] Furthermore, the power supply unit converts the external power supply into an adaptive DC power supply to supply power to each unit.

[0013] Furthermore, the color graphic control card unit processes the image signal, including an HDMI interface control chip and a parallel image processing unit with DSP+FPGA+DDR as the core, so as to adapt the image to the display of the LED screen, and convert the image into a pixel grayscale signal adapted to the LED display, and output it to the LED interface.

[0014] Furthermore, the parallel image processing unit with DSP+FPGA+DDR as the core adopts high-performance image-specific processor chips of Ti and XILINX.

[0015] Furthermore, the high-brightness color LED graphic display function unit drives the display of LED pixels. The high-brightness color LED graphic display function unit receives a pixel grayscale signal from an LED interface, converts the signal into a PWM constant current, and drives the LED pixels for display.

[0016] Furthermore, the speech synthesis unit adopts the intelligent speech synthesis chip of iFlytek XFS5051CE model, the electronic potentiometer chip X9511, and the audio amplifier chip MD8002;

[0017] The text transmitted from the weighing machine is processed into a standard Mandarin audio signal. After the volume is adjusted by the electronic potentiometer, the power is amplified by the power amplifier chip, and the sound is output using a speaker, driving four 8Ω rubber-edged full-band speaker units for playback.

[0018] Furthermore, the voice playback unit is composed of a power amplifier, an electronic potentiometer and a speaker, using Ti's audio amplifier dedicated chip LM1876 and four 8Ω rubber-edged full-range speaker units to ensure that loud and clear sound can still be played in a noisy environment during the tobacco station acquisition.

[0019] Furthermore, the key operation function unit is electrically connected to the voice playback unit to adjust the output volume of the audio playback;

[0020] Electrically connected to the power supply unit, used to control the power on and off of the device.

[0021] Furthermore, the display screen uses LED full-color dot matrix to display images and text information, and the LED full-color dot matrix uses a splicing structure, which is composed of multiple LED dot matrix module units spliced ​​together to form a large-size screen;

[0022] The LED dot matrix module unit is composed of a full-color LED and a full-color LED scanning driver chip. It receives the dot matrix signal from the parallel image processing unit and converts the dot matrix signal into an LED dot matrix PWM grayscale constant current, driving the full-color LED to light up with the grayscale value corresponding to the dot matrix position corresponding to the current picture frame.

[0023] Compared with the prior art, the intelligent voice display screen for tobacco leaf purchasing of the present invention has the following outstanding beneficial effects:

[0024] (1) The display screen of the present invention is connected to the integrated weighing machine and connected to the purchasing monitoring network in the tobacco purchasing station. The monitoring screen of the weighing area is displayed on the screen, and the tobacco station information, including the tobacco station name, scale number, etc., is displayed at the same time. The weighing information, including the name of the tobacco farmer, the tobacco farmer's contract number, the contract remaining quantity, the tobacco basket grade, the net weight of the tobacco basket, the tare weight of the tobacco basket, the price of the tobacco basket, etc., is displayed. The weighing information is displayed in real time for the tobacco farmers to watch and supervise in the tobacco farmer observation area, so as to ensure the transparency and fairness of the transaction in the process of tobacco leaf delivery.

[0025] (2) The proposed intelligent voice screen uses LED to display text information and images. It has clear display and good brightness. It can adapt to the changing environment of the smoke station. It will not cause the situation where the screen content cannot be seen clearly due to strong direct sunlight when using other types of display screens. It has strong environmental adaptability, low power consumption, energy saving and environmental protection, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Attached Figure 1 It is a schematic diagram of a framework of an intelligent voice display screen used for tobacco leaf procurement;

[0028] Attached Figure 2 It is a circuit diagram of a color graphic control card in an intelligent voice display screen used for tobacco leaf purchasing;

[0029] Attached Figure 3 This is a circuit framework diagram of a high-brightness color LED graphic display function unit in an intelligent voice display screen used for tobacco leaf procurement;

[0030] Attached Figure 4 It is a circuit diagram of a voice playback unit in an intelligent voice display screen used for tobacco leaf purchasing;

[0031] Attached Figure 5 The present invention is a circuit diagram of a key operation function unit in an intelligent voice display screen used for tobacco leaf purchasing. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] A best embodiment is given below:

[0034] like Figure 1-5 As shown, in this embodiment, an intelligent voice display screen applied to tobacco leaf procurement includes a weighing integrated machine, the weighing integrated machine is connected to an HDMI interface unit, the HDMI interface unit is connected to a color graphic control card unit, the color graphic control card unit is connected to a power supply unit, a high-brightness color LED graphic display function unit, a voice synthesis unit, a voice playback unit and a key operation function unit;

[0035] The color graphic control card unit is also connected to an HDMI interface unit and a high-brightness color LED graphic display function unit, and the key operation function unit is also connected to a voice playback unit.

[0036] The HDMI interface unit is electrically connected to the weighing machine via an HDMI high-definition signal cable, and receives the monitoring video image signal of the weighing area, tobacco weighing information data, tobacco station information and tobacco farmer information from the weighing machine.

[0037] The HDMI interface unit is electrically connected to the color image and text control card, and transmits the image signal from the HDMI interface unit to the color image and text control card unit.

[0038] The power supply unit converts the external power supply into an adaptive DC power supply to supply power to each unit.

[0039] The power supply uses 220V mains electricity. The power adapter converts the mains voltage into a 5V high-current DC low-voltage output to power the various functional units inside the smart voice display. The power adapter has an EMI filter inside, which can effectively filter out various electromagnetic interferences on the mains, further reduce the ripple interference on the DC output voltage, and ensure the working stability of the smart voice display. The power adapter also has overvoltage, overcurrent and other protections, which further ensures the working reliability of the equipment.

[0040] The color graphic control card unit processes the image signal, including an HDMI interface control chip and a parallel image processing unit with DSP+FPGA+DDR as the core, so that the image adapts to the display of the LED screen, and converts the image into a pixel grayscale signal adapted to the LED display, and outputs it to the LED interface.

[0041] The parallel image processing unit with DSP+FPGA+DDR as the core adopts high-performance image-specific processor chips from Ti and XILINX.

[0042] The high-brightness color LED graphic display function unit drives the display of LED pixels. The high-brightness color LED graphic display function unit receives a pixel grayscale signal from an LED interface, converts the signal into a PWM constant current, and drives the LED pixels for display.

[0043] The speech synthesis unit uses the iFlytek XFS5051CE intelligent speech synthesis chip, the electronic potentiometer chip X9511, and the audio amplifier chip MD8002;

[0044] The text transmitted from the weighing machine is processed into a standard Mandarin audio signal. After the volume is adjusted by the electronic potentiometer, the power is amplified by the power amplifier chip, and the sound is output using a speaker, driving four 8Ω rubber-edged full-band speaker units for playback.

[0045] The voice playback unit consists of an amplifier, an electronic potentiometer and a speaker. It uses Ti's dedicated audio amplifier chip LM1876 and four 8Ω rubber-edged full-range speaker units to ensure that loud and clear sound can be played in a noisy environment during the acquisition of the tobacco station.

[0046] The key operation function unit is electrically connected to the voice playback unit and is used to adjust the output volume of the audio playback;

[0047] Electrically connected to the power supply unit, used to control the power on and off of the device.

[0048] The display screen uses LED full-color dot matrix to display images and text information. The LED full-color dot matrix uses a splicing structure, and multiple LED dot matrix module units are spliced ​​together to form a large-size screen;

[0049] The LED dot matrix module unit is composed of a full-color LED and a full-color LED scanning driver chip. It receives the dot matrix signal from the parallel image processing unit and converts the dot matrix signal into an LED dot matrix PWM grayscale constant current, driving the full-color LED to light up with the grayscale value corresponding to the dot matrix position corresponding to the current picture frame.

[0050] The above-mentioned specific implementations are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the above-mentioned specific implementations. Any technical solutions that conform to the above-mentioned specific implementations of the present invention and any appropriate changes or substitutions made by ordinary technicians in the relevant technical field shall fall within the patent protection scope of the present invention.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent voice display screen for tobacco leaf purchasing, including a weighing machine, characterized in that: The weighing machine is connected to an HDMI interface unit, the HDMI interface unit is connected to a color graphic control card unit, and the color graphic control card unit is connected to a power supply unit, a high-brightness color LED graphic display function unit, a speech synthesis unit, a speech playback unit, and a key operation function unit; The color graphic control card unit is also connected to an HDMI interface unit and a high-brightness color LED graphic display function unit, and the key operation function unit is also connected to a voice playback unit.

2. According to claim 1, the intelligent voice display screen used for tobacco leaf purchasing is characterized in that: The HDMI interface unit is electrically connected to the weighing machine via an HDMI high-definition signal cable, and receives the monitoring video image signal of the weighing area, tobacco weighing information data, tobacco station information and tobacco farmer information from the weighing machine. The HDMI interface unit is electrically connected to the color graphics control card, and the image signal is transmitted from the HDMI interface unit to the color graphics control card unit.

3. The intelligent voice display screen for tobacco leaf purchasing according to claim 2 is characterized in that: The power supply unit converts the external power supply into an adaptive DC power supply to supply power to each unit.

4. The intelligent voice display screen for tobacco leaf purchasing according to claim 3 is characterized in that: The color graphic control card unit processes the image signal, including an HDMI interface control chip and a parallel image processing unit with DSP+FPGA+DDR as the core, so that the image is adapted to the display of the LED screen, and the image is converted into a pixel grayscale signal adapted to the LED display, and output to the LED interface.

5. The intelligent voice display screen for tobacco leaf purchasing according to claim 4 is characterized in that: The parallel image processing unit with DSP+FPGA+DDR as the core adopts high-performance image-specific processor chips of Ti and XILINX.

6. The intelligent voice display screen for tobacco leaf purchasing according to claim 5 is characterized in that: The high-brightness color LED graphic display function unit drives the display of LED pixels. The high-brightness color LED graphic display function unit receives a pixel grayscale signal from an LED interface, converts the signal into a PWM constant current, and drives the LED pixels for display.

7. The intelligent voice display screen for tobacco leaf purchasing according to claim 6 is characterized in that: The speech synthesis unit adopts the intelligent speech synthesis chip of iFlytek XFS5051CE model, the electronic potentiometer chip X9511, and the audio amplifier chip MD8002; The text transmitted from the weighing machine is processed into a standard Mandarin audio signal. After the volume is adjusted by the electronic potentiometer, the power is amplified by the power amplifier chip, and the sound is output using a speaker, driving four 8Ω rubber-edged full-band speaker units for playback.

8. The intelligent voice display screen for tobacco leaf purchasing according to claim 7 is characterized in that: The voice playback unit is composed of a power amplifier, an electronic potentiometer and a speaker. It uses Ti's audio amplifier dedicated chip LM1876 and four 8Ω rubber-edged full-range speaker units to ensure that loud and clear sound can still be played in a noisy environment during the tobacco station acquisition.

9. The intelligent voice display screen for tobacco leaf purchasing according to claim 8 is characterized in that: The key operation function unit is electrically connected to the voice playback unit and is used to adjust the output volume of the audio playback; Electrically connected to the power supply unit, used to control the power on and off of the device.

10. The intelligent voice display screen for tobacco leaf purchasing according to claim 9, characterized in that: The display screen uses LED full-color dot matrix to display images and text information. The LED full-color dot matrix uses a splicing structure, and multiple LED dot matrix module units are spliced ​​together to form a large-size screen; The LED dot matrix module unit is composed of a full-color LED and a full-color LED scanning driver chip. It receives the dot matrix signal from the parallel image processing unit and converts the dot matrix signal into an LED dot matrix PWM grayscale constant current, driving the full-color LED to light up with the grayscale value corresponding to the dot matrix position corresponding to the current picture frame.

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