CN213244430U - Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly - Google Patents
Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly Download PDFInfo
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- CN213244430U CN213244430U CN202021638151.7U CN202021638151U CN213244430U CN 213244430 U CN213244430 U CN 213244430U CN 202021638151 U CN202021638151 U CN 202021638151U CN 213244430 U CN213244430 U CN 213244430U
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Abstract
The invention discloses an intelligent bus stop board monochromatic lattice liquid crystal display information screen assembly, which comprises a box body, a display screen and a main control device, wherein the display screen and the main control device are positioned in the box body, the display screen is a monochromatic lattice liquid crystal display screen and is used for displaying bus information, time and weather, a backlight lamp is arranged in the display screen, and the intelligent bus stop board monochromatic lattice liquid crystal display information screen assembly is characterized in that: the solar energy display box is characterized in that a solar cell panel is arranged at the top of the box body and supplies power to the display screen through a power supply circuit, a plurality of photosensitive resistors are further embedded into the side face of the box body and located in the power supply circuit, and the photosensitive resistors are used for controlling the opening of the backlight lamp. The backlight lamp can be automatically turned on and off according to the light condition, so that the energy consumption is saved even if screen information is read; in addition, the influence of vehicle light passing at night on the photoresistor is considered, and the backlight is prevented from being turned off and on frequently.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to an intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly.
Background
Along with the development of smart cities and intelligent transportation. The existing bus stop board can provide convenient service information such as bus routes, arrival time, weather forecast and the like for passengers in real time, and reduces the high cost of manually updating bus information. Most of the existing bus stop boards are powered by commercial power, cables need to be laid, and time and labor are wasted. Therefore, the solar power supply is the preferred choice, and the bus stop board has a certain surface area and is convenient for laying photovoltaic. Then, the power of the existing color liquid crystal display screen of the display screen is large, a large amount of electric energy still needs to be consumed under the condition of good light in the daytime, and the generated energy of the existing solar cell can not meet the use requirement.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an intelligent bus stop board monochromatic dot matrix liquid crystal display information screen component which is electricity-saving and power-saving.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an intelligence bus stop board monochromatic dot matrix liquid crystal display information screen subassembly, includes the box and is arranged in display screen and the master control unit of box, the display screen is monochromatic dot matrix liquid crystal display for show bus information, time and weather, be provided with the backlight in the display screen, its characterized in that: the solar energy display box is characterized in that a solar cell panel is arranged at the top of the box body and supplies power to the display screen through a power supply circuit, a plurality of photosensitive resistors are further embedded into the side face of the box body and located in the power supply circuit, and the photosensitive resistors are used for controlling the opening of the backlight lamp.
Furthermore, the power supply circuit comprises a charging circuit, a discharging circuit and a storage battery, the solar panel charges the storage battery through the charging circuit, and the storage battery supplies power to the display screen, the backlight and the main control device through the discharging circuit; the power supply circuit comprises a high-voltage to low-voltage conversion module, the high-voltage to low-voltage conversion module generates 5V voltage for supplying power to the main control device and 10V voltage for supplying power to the photoresistor, and the main control device is connected with the photoresistor and is used for detecting the voltage at the end part of the photoresistor; the positive electrode of the storage battery is connected with a backlight lamp, the other end of the backlight lamp is connected with the D electrode of an MOS (metal oxide semiconductor) tube, the s electrode of the MOS tube is grounded, and the g electrode of the MOS tube is connected with the main control device.
Further, the photoresistor is also connected with a divider resistor, the divider resistor is grounded, a node between the divider resistor and the photoresistor is connected into the main control device for voltage detection, when the main control device detects that the voltages gradually rise and exceed a threshold value, and the time is longer than the threshold value and is longer than time t, the main control module outputs low voltage to the MOS tube, and the MOS tube is closed; when the main control device detects that the voltages are all gradually reduced and are lower than the threshold value, and the time of the voltage lower than the threshold value is longer than the time t, the main control module outputs high voltage to the MOS tube, and the MOS tube is started, wherein the threshold value refers to a voltage value corresponding to a node between the voltage dividing resistor and the photosensitive resistor when the backlight needs to be started in dark.
Further, the time t is 60 seconds.
Furthermore, the outer surface of the display screen is also provided with an ultraviolet coating.
The technical scheme shows that the invention has the following advantages: the backlight lamp can be automatically turned on and off according to the light condition, so that the energy consumption is saved even if screen information is read; in addition, the influence of vehicle light passing at night on the photoresistor is considered, and the backlight is prevented from being turned off and on frequently.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of driving a backlight in the present invention;
fig. 3 is a display interface diagram of the display screen in the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1, 2 and 3, the monochrome dot matrix liquid crystal display information screen assembly of the intelligent bus stop board comprises a box body 1, a display screen 2 and a main control device, wherein the display screen 2 and the main control device are positioned in the box body, a wireless network communication module is arranged in the main control device and can receive bus line information sent by a headquarters, and an ARM processor is arranged in the main control device and can process input signals. The display screen is a monochromatic dot matrix liquid crystal display screen, the dot matrix range is 256x160, 320x256 and 480x360, the size range is 290x180 to 390x360, the display screen is used for displaying information such as arrival time, current time and weather of the bus, and backlight lamps are arranged in the display screen. The display has the advantages of low-voltage micro-power consumption, flat plate type structure, wave display, support for modifying characters and graphs, large amount of display information, no electromagnetic radiation, long service life and the like, is suitable for the visual habit of people, does not cause fatigue of eyes of people, and has no pollution to the environment. On the premise of energy conservation and environmental protection, convenient service information such as bus routes, arrival time, weather forecast and the like can be provided for passengers in real time, and the high cost of manually updating bus information is reduced. Under the direct irradiation of sunlight, the display screen is clear and visible, and low-power consumption backlight is adopted at night to facilitate reading at night, so that the display screen becomes an optimal outdoor intelligent bus stop board information display screen, and brand new intelligent bus travel experience is brought to citizens. The ultraviolet-proof material is used on the surface of the display screen, the display screen normally works under direct sunlight, the display effect is clear, the display screen can normally work under the condition of ultra-wide temperature requirement, and the normal working temperature can reach: the temperature is-30 to +70 ℃, and the storage temperature of the product can reach: the temperature is minus 40 to plus 80 ℃, and the normal service life is as long as more than 50000 hours;
the box top is provided with solar cell panel 4, and solar cell panel 4 passes through power supply circuit and supplies power for the display screen, still imbeds a plurality of photo resistance 3 on the side of box, and photo resistance 3 is arranged in power supply circuit, and photo resistance is used for controlling opening of backlight, and is concrete, and power supply circuit includes charging circuit, discharge circuit and battery, and solar cell panel passes through charging circuit and charges for the battery, and the battery can be the lithium cell, also can adopt super capacitor to carry out the energy storage. The storage battery supplies power to the display screen, the backlight lamp and the main control device through the discharge circuit; the power supply circuit comprises a high-voltage to low-voltage conversion module, the high-voltage to low-voltage conversion module is a conventional circuit design in the prior art, the specific structure of the power supply circuit is not described herein, the high-voltage to low-voltage conversion module generates 5V voltage for power supply of a main control device, generates 10V voltage for power supply of a photoresistor, and the main control device is connected with the photoresistor and is used for detecting the voltage at the end part of the photoresistor; the positive electrode of the storage battery is connected with a backlight lamp to supply power, the other end of the backlight lamp is connected with the D electrode of an MOS (metal oxide semiconductor) tube, the s electrode of the MOS tube is grounded, and the g electrode of the MOS tube is connected with a main control device. The main control device controls the on-off of the MOS tube to realize the on-off of the backlight lamp.
The photosensitive resistor is also connected with a divider resistor, the divider resistor is grounded, a node between the divider resistor and the photosensitive resistor is connected into the main control device for voltage detection, when the main control device detects that the voltages gradually rise and exceed a threshold value, and the time of the voltage exceeding the threshold value is more than 60s, the main control module outputs low voltage to the MOS tube, and the MOS tube is closed; when the main control device detects that the voltages are all gradually reduced and are lower than the threshold value, and the time of the voltage lower than the threshold value is longer than 60s, the main control module outputs high voltage to the MOS tube, and the MOS tube is started, wherein the threshold value refers to a voltage value corresponding to a node between the voltage dividing resistor and the photosensitive resistor when the backlight needs to be started in darkness. The threshold value can be manually set and adjusted, so that the starting condition of the backlight lamp is set.
The backlight lamp can be automatically turned on and off according to the light condition, the energy consumption is saved even if screen information is read, and the setting of 60s is to consider the influence of vehicle light passing at night and the like on the photoresistor and prevent the backlight lamp from being frequently turned off and turned on.
Claims (3)
1. The utility model provides an intelligence bus stop board monochromatic dot matrix liquid crystal display information screen subassembly, includes the box and is arranged in display screen and the master control unit of box, the display screen is monochromatic dot matrix liquid crystal display for show bus information, time and weather, be provided with the backlight in the display screen, its characterized in that: the solar energy display box is characterized in that a solar cell panel is arranged at the top of the box body and supplies power to the display screen through a power supply circuit, a plurality of photosensitive resistors are further embedded into the side face of the box body and located in the power supply circuit, and the photosensitive resistors are used for controlling the opening of the backlight lamp.
2. The monochrome dot matrix liquid crystal display information screen assembly of the intelligent bus stop board according to claim 1, characterized in that: the power supply circuit comprises a charging circuit, a discharging circuit and a storage battery, the solar panel charges the storage battery through the charging circuit, and the storage battery supplies power to the display screen, the backlight and the main control device through the discharging circuit; the power supply circuit comprises a high-voltage to low-voltage conversion module, the high-voltage to low-voltage conversion module generates 5V voltage for supplying power to the main control device and 10V voltage for supplying power to the photoresistor, and the main control device is connected with the photoresistor and is used for detecting the voltage at the end part of the photoresistor; the positive electrode of the storage battery is connected with a backlight lamp, the other end of the backlight lamp is connected with the D electrode of an MOS (metal oxide semiconductor) tube, the s electrode of the MOS tube is grounded, and the g electrode of the MOS tube is connected with the main control device.
3. The monochrome dot matrix liquid crystal display information screen assembly of the intelligent bus stop board according to claim 1, characterized in that: the outer surface of the display screen is also provided with an ultraviolet coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021638151.7U CN213244430U (en) | 2020-08-07 | 2020-08-07 | Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly |
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| CN202021638151.7U CN213244430U (en) | 2020-08-07 | 2020-08-07 | Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111867204A (en) * | 2020-08-07 | 2020-10-30 | 上海众金智能科技有限公司 | Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111867204A (en) * | 2020-08-07 | 2020-10-30 | 上海众金智能科技有限公司 | Intelligent bus stop board monochromatic dot matrix liquid crystal display information screen assembly |
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