Touch signboard

Abstract

The utility model relates to the technical field of identification facilities, and discloses a touch signboard. The technical problems that in the prior art, information transmission of a signboard stays at a one-way output stage, a user cannot conduct interactive operation on information on the signboard, and interactivity and user friendliness are poor are solved. A plurality of signboards facing different directions are arranged above the vertical rod, a touch screen is arranged in the middle of the vertical rod and connected with a controller through a communication interface circuit, the touch screen is connected with a touch screen power supply circuit, the touch screen power supply circuit comprises a 5V power supply circuit, and the controller is connected with a controller power supply circuit and / or a battery. The controller power supply circuit comprises a 5V-to-3. 3V power supply circuit connected with the voltage output end of the 5V power supply circuit; the touch screen comprises a DGUS screen; and the controller comprises an STM32 processor. According to the utility model, the information interactivity and the user friendliness are obviously improved, and an important breakthrough is made in the aspect of energy conservation.

Description

Technical Field

[0001] The utility model relates to the technical field of identification facilities, in particular to a touch identification board. Background Art

[0002] Signage is a visual communication tool, mainly used to provide information, indicate directions, mark locations, remind precautions, etc. It can be made of various forms and materials, including but not limited to wood, metal, plastic (such as acrylic), display screens, etc. Signage is widely used in various places, such as: Guide sign system: used in public facilities, commercial areas, tourist attractions, transportation hubs, etc., to help pedestrians quickly find their destination or path; Safety warning signs: set up in construction sites, factories, and along roads to indicate potential dangers and ensure personnel safety; Commercial advertising signs: used by companies or businesses to display brand image, product information or promotional activities; Functional signs: in offices, education, medical institutions and other environments, to identify room names, equipment uses or operating instructions; Signage in the prior art only has a single indication function when in use, and cannot show the diversity of use. It needs to be frequently replaced and maintained, which increases the overall cost of use and labor intensity, and cannot meet the needs of normal use.

[0003] Chinese patent document 202311292722.4 in the prior art discloses a signboard, including a signboard placement frame; a signboard body, which is installed inside the signboard placement frame. When in use, auxiliary lighting warning treatment is provided by installing a light-emitting lamp post; an anti-slip seat and a connecting reinforcement component are provided, which drive the second bevel gear to rotate, drive the first bevel gear to rotate, drive the reciprocating screw to rotate, drive the slider to move downward, and drive the supporting foot to slide out to the bottom through the first slide groove until it contacts the ground for normal support; a moisture-proof component is provided.

[0004] However, during the implementation of the above scheme, there are at least the following technical problems: information transmission remains in the one-way output stage, users cannot interact with the information on the signboard, and interactivity and user-friendliness still need to be improved. Therefore, it is urgent to propose a touch signboard. Summary of the invention

[0005] In view of the above technical problems, the present disclosure provides a touch signboard, which solves the technical problems in the prior art that the information transmission of the signboard remains in the one-way output stage, the user cannot interact with the information on the signboard, and the interactivity and user-friendliness are poor.

[0006] According to one aspect of the present disclosure, there is provided a touch signboard, comprising a pole, a plurality of signboards facing different directions are arranged above the pole, a touch screen is arranged in the middle of the pole, the touch screen is connected to a controller via a communication interface circuit, the touch screen is connected to a touch screen power supply circuit, the touch screen power supply circuit comprises a 5V power supply circuit, the controller is connected to a controller power supply circuit and / or a battery, the controller power supply circuit comprises a 5V to 3.3V power supply circuit connected to a voltage output end of the 5V power supply circuit; the touch screen comprises a DGUS screen; the controller comprises an STM32 processor.

[0007] The communication interface circuit includes an RS-232 serial communication interface circuit, and the RS-232 serial communication interface circuit includes an SP3232 chip capable of converting a TTL level into an RS232 interface level.

[0008] The communication interface circuit includes an RS-485 serial communication interface circuit, and the RS-485 serial communication interface circuit includes an SP3485 chip capable of converting a TTL level into an RS485 interface level.

[0009] The 5V power supply circuit comprises a transformer, a rectifier diode, a filter capacitor, and a LM7805 three-terminal linear regulator connected in sequence, and the voltage input end of the transformer is connected to a 220V AC mains.

[0010] The 5V to 3.3V power supply circuit includes a storage capacitor, a filter capacitor, and an AMS1117 three-terminal integrated voltage regulator connected in sequence, and the AMS1117 three-terminal integrated voltage regulator outputs VCC3.3V.

[0011] The battery comprises a CR1220 button battery, and the power supply pin VBAT of the STM32 processor is connected to the CR1220 button battery and VCC3.3V.

[0012] It also includes a solar panel installed on the top of the vertical pole to supply power to the touch screen, a photoresistor sensor and a raindrop sensor are installed on the front and back surfaces of the solar panel respectively, the signal output ends of the photoresistor sensor and the raindrop sensor are connected to a control unit, the solar panel is installed with a power source to drive its movement, and the power source is connected to the signal output end of the control unit; the power source includes two vertical servos and a transverse servo installed in a T shape, the rotation output shaft of the vertical servo is connected to the middle part of the transverse servo via a fixed caliper, and the power output shaft of the transverse servo is connected to the back of the solar panel to realize the rotation of the solar panel towards the sun.

[0013] The beneficial effects of the utility model are:

[0014] Multiple signboards facing different directions are installed on the upper part of the pole to facilitate all-round display of information.

[0015] A touch screen is embedded in the middle of the pole, using a DGUS screen that can provide rich multimedia information display and interactive functions.

[0016] The touch screen is connected to the STM32 controller through a communication interface circuit, supporting RS-232 and RS-485 serial communication interfaces to ensure stable and reliable data transmission.

[0017] The touch screen power supply circuit uses a 5V power supply, and powers the controller through a 3.3V power supply circuit. It is also equipped with a CR1220 button battery as a backup power supply to ensure continuous operation of the device.

[0018] The addition of solar panels can not only use solar energy to power the touch screen, but is also equipped with photoresistor sensors and raindrop sensors. The control unit automatically adjusts the angle of the solar panel to capture the optimal light. At the same time, it is equipped with a T-shaped dual-axis servo to adjust the angle of the solar panel to achieve sun tracking, which greatly improves the energy utilization efficiency and the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a touch sign;

[0020] Figure 2 This is a schematic diagram of the structure of the touch sign from another perspective;

[0021] Figure 3 It is the schematic diagram of STM32 processor and its peripheral circuits;

[0022] Figure 4 This is the schematic diagram of the RS-232 serial communication interface circuit;

[0023] Figure 5 This is the schematic diagram of the RS-485 serial communication interface circuit;

[0024] Figure 6 This is the schematic diagram of the 5V power supply circuit;

[0025] Figure 7 This is the schematic diagram of the 3.3V power supply circuit;

[0026] The names of the components in the figure are: 1. Vertical pole; 2. Signboard; 3. Touch screen; 4. Solar panel; 5. Photoresistor sensor; 6. Raindrop sensor; 7. Vertical servo; 8. Horizontal servo; 9. Rotary output shaft; 10. Fixed caliper; 11. Power output shaft. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example

[0028] This example discloses a touch sign, see Figures 1 to 7 , including a pole 1, a plurality of signboards 2 facing different directions are arranged above the pole 1, a touch screen 3 is arranged in the middle of the pole 1, the touch screen 3 is connected to the controller via a communication interface circuit, the touch screen 3 is connected to the touch screen power supply circuit, the touch screen power supply circuit includes a 5V power supply circuit, the controller is connected to the controller power supply circuit and / or a battery, the controller power supply circuit includes a 5V to 3.3V power supply circuit connected to the voltage output end of the 5V power supply circuit; the touch screen 3 includes a DGUS screen; the controller includes an STM32 processor.

[0029] The communication interface circuit includes an RS-232 serial communication interface circuit, and the RS-232 serial communication interface circuit includes an SP3232 chip capable of converting a TTL level into an RS232 interface level.

[0030] The communication interface circuit includes an RS-485 serial communication interface circuit, and the RS-485 serial communication interface circuit includes an SP3485 chip capable of converting a TTL level into an RS485 interface level.

[0031] The 5V power supply circuit includes a transformer, a rectifier diode, a filter capacitor, and a LM7805 three-terminal linear regulator connected in sequence, and the voltage input end of the transformer is connected to the 220V AC mains.

[0032] The 5V to 3.3V power supply circuit includes a storage capacitor, a filter capacitor, and an AMS1117 three-terminal integrated voltage regulator connected in sequence. The AMS1117 three-terminal integrated voltage regulator outputs VCC3.3V.

[0033] The battery includes a CR1220 button battery, and the power supply pin VBAT of the STM32 processor is connected to the CR1220 button battery and VCC3.3V.

[0034] It also includes a solar panel 4 installed on the top of the vertical pole 1, and a photoresistor sensor 5 and a raindrop sensor 6 are installed on the front and back surfaces of the solar panel 4 respectively. The signal output ends of the photoresistor sensor 5 and the raindrop sensor 6 are connected to the control unit. The solar panel 4 is installed with a power source that can drive its movement, and the power source is connected to the signal output end of the control unit; the power source includes two vertical steering gears 7 and a transverse steering gear 8 installed in a T shape, and the rotation output shaft 9 of the vertical steering gear 7 is connected to the middle part of the transverse steering gear 8 through a fixed caliper 10, and the power output shaft 11 of the transverse steering gear 8 is connected to the back of the solar panel 4 to realize the rotation of the solar panel 4 relative to the sun.

[0035] During operation, the touch screen 3 uses a DGUS screen, which can communicate with the controller with the STM32 processor as the core through the communication interface circuit to realize data exchange and command execution. This communication interface circuit is compatible with RS-232 and RS-485 serial communication standards, and is respectively configured with SP3232 and SP3485 chips for level conversion, ensuring stable communication with external devices. The touch screen is powered by 220V AC mains input, which is stepped down by the transformer, rectified by the rectifier diode, and filtered by the filter capacitor. Then, the LM7805 three-terminal linear regulator outputs a stable 5V voltage for the touch screen. At the same time, the 5V voltage is further converted to the 3.3V voltage required by the controller through the 5V to 3.3V power supply circuit. In addition, in order to ensure the normal operation of the controller in an emergency, the STM32 processor is also connected to a CR1220 button battery as a backup power supply through the VBAT pin. A solar panel 4 is equipped on the top of the pole to provide energy, and a photoresistor sensor 5 and a raindrop sensor 6 are installed. The signals output by the two are transmitted to the control unit, and the angle of the solar panel is automatically adjusted according to the ambient light intensity and rain conditions. Through the linkage of two T-shaped mounted vertical servos 7 and transverse servos 8, the rotary output shaft 9 of the vertical servo 7 is connected to the transverse servo 8 through a fixed caliper 10, and the power output shaft 11 of the transverse servo 8 is connected to the back of the solar panel 4, so as to drive the solar panel to track sunlight, absorb solar energy to the greatest extent, and ensure continuous and stable power supply for the sign in outdoor environment.

[0036] Among them, the raindrop sensor 6 is installed on the solar panel 4. The raindrop sensor 6 has the function of sensing the environment rain. When the external environment is rainy weather, it will temporarily shut down to protect the system; the photoresistor sensor 5 is installed on the front and back of the solar panel 4, which can sense the intensity of light and transmit the signal to the control unit. The photoresistor sensor 5 detects the real-time changes of the position of sunlight in real time, and the detected analog signal is converted into a corresponding electrical signal through the conversion circuit and then transmitted to the control unit. The control unit performs code logic operations, controls the steering gear, drives the solar panel 4 to operate at an angle, and tracks the azimuth and altitude angle of the sun in dual axes; in order to maximize the absorption of solar energy, the solar panel 4 can convert solar energy into electrical energy, which is the power source of the touch screen.

[0037] like Figure 3As shown in the figure, the STM32 processor is powered by 3.3V externally. The external 8MHz crystal oscillator is multiplied by 21 times by the internal phase-locked loop to generate a 168MHz crystal oscillator as the system clock. The external low-speed 32.768M crystal oscillator is used as the RTC clock source. The power supply pin VBAT is powered by a mixed power supply of CR1220 button battery and VCC3.3. When there is an external power supply VCC3.3, CR1220 does not power VBAT, and when the external power supply is disconnected, CR1220 powers it. Y1 and Y2 are external crystal oscillators; the BOOT0 and BOOT1 pin levels determine the startup mode of the processor. After the processor is reset and restarted, select the entry address of the program, pull the BOOT0 pin down to a low level, and the program can be started from the on-chip FLASH. The BOOT0 and BOOT1 pin levels are set through jumper caps to achieve different startup modes.

[0038] like Figure 4 As shown in the figure, the RS-232 serial communication interface circuit design of the controller uses a DB9 interface for communication, and data communication is achieved through the three wires of TxD, RxD, and GND. Since RS-232 communication uses negative logic, the level range of -5V~-15V is regarded as logic "1", and the level range of 5V~15V is regarded as logic "0". The low level of TTL level is less than 1.2V and is regarded as logic "0", and its high level is greater than 2.0V and is regarded as logic "1". The two communication methods require logic level conversion, and the function of the SP3232 chip is to convert the TTL level to the RS232 interface level.

[0039] like Figure 5 As shown in the figure, the controller is designed to communicate with the DGUS screen through the RS-485 interface circuit. RS-485 uses a two-wire half-duplex communication method. Since the communication interface uses differential signal negative logic, the level in the range of +2~+6V represents the logic state "0", and in the range of -2~-6V represents the logic state "1". The low level of the TTL level is less than 1.2V and is regarded as logic "0", and the high level is greater than 2.0V and is regarded as logic "1", so it is necessary to realize level conversion. The function of the SP3485 chip is to realize the conversion between the TTL level and the RS485 interface level.

[0040] like Figure 6As shown in the figure, the design of the 5V power supply circuit includes the following specific implementation process: by controlling the turns ratio of the transformer, the unidirectional industrial frequency AC power with an effective value of 220V is converted into an AC power with an effective value of 8V, and then the unidirectional bridge uncontrolled rectifier circuit is passed to convert the sinusoidal wave voltage into a pulsating DC voltage in a single direction. After the capacitor filtering, the AC component in the pulsating DC is filtered out, and then the voltage is stabilized by the LM7805 three-terminal linear regulator, and finally 5V DC is output after filtering capacitors C36 and C38.

[0041] like Figure 7 As shown, the 5V voltage is converted to 3.3V, where C6 and C3 capacitors are used as energy storage capacitors, C1, C2, C4, and C5 capacitors are used as filter capacitors, and the voltage conversion is completed through the AMS1117 three-terminal integrated voltage regulator. Among them, +3.3V is used to power the STM32F407ZGT6 control chip, the internal FLASH storage circuit, the RS-232 serial communication interface circuit, and other peripheral modules. +5V is used to power the touch screen.

[0042] Although some preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A touch sign, characterized in that: It comprises a vertical pole, a plurality of identification plates facing different directions are arranged above the vertical pole, a touch screen is arranged in the middle of the vertical pole, the touch screen is connected to the controller via a communication interface circuit, the touch screen is connected to the touch screen power supply circuit, the touch screen power supply circuit comprises a 5V power supply circuit, the controller is connected to the controller power supply circuit and / or a battery, the controller power supply circuit comprises a 5V to 3.3V power supply circuit connected to the voltage output end of the 5V power supply circuit; the touch screen comprises a DGUS screen; the controller comprises an STM32 processor.

2. The touch sign as claimed in claim 1, characterized in that: The communication interface circuit includes an RS-232 serial communication interface circuit, and the RS-232 serial communication interface circuit includes an SP3232 chip capable of converting a TTL level into an RS232 interface level.

3. The touch sign as claimed in claim 1, characterized in that: The communication interface circuit includes an RS-485 serial communication interface circuit, and the RS-485 serial communication interface circuit includes an SP3485 chip capable of converting a TTL level into an RS485 interface level.

4. The touch sign as claimed in claim 1, characterized in that: The 5V power supply circuit comprises a transformer, a rectifier diode, a filter capacitor, and a LM7805 three-terminal linear regulator connected in sequence, and the voltage input end of the transformer is connected to a 220V AC mains.

5. The touch sign as claimed in claim 1, characterized in that: The 5V to 3.3V power supply circuit includes a storage capacitor, a filter capacitor, and an AMS1117 three-terminal integrated voltage regulator connected in sequence, and the AMS1117 three-terminal integrated voltage regulator outputs VCC3.3V.

6. The touch sign as claimed in claim 1, characterized in that: The battery comprises a CR1220 button battery, and the power supply pin VBAT of the STM32 processor is connected to the CR1220 button battery and VCC3.3V.

7. The touch sign as claimed in claim 1, characterized in that: It also includes a solar panel installed on the top of the vertical pole to supply power to the touch screen, a photoresistor sensor and a raindrop sensor are installed on the front and back surfaces of the solar panel respectively, the signal output ends of the photoresistor sensor and the raindrop sensor are connected to a control unit, the solar panel is installed with a power source to drive its movement, and the power source is connected to the signal output end of the control unit; the power source includes two vertical servos and a transverse servo installed in a T shape, the rotation output shaft of the vertical servo is connected to the middle part of the transverse servo via a fixed caliper, and the power output shaft of the transverse servo is connected to the back of the solar panel to realize the rotation of the solar panel towards the sun.

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