CN111372354A - Information display lamp and information display control device and method thereof - Google Patents
Information display lamp and information display control device and method thereof Download PDFInfo
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- CN111372354A CN111372354A CN201811587944.8A CN201811587944A CN111372354A CN 111372354 A CN111372354 A CN 111372354A CN 201811587944 A CN201811587944 A CN 201811587944A CN 111372354 A CN111372354 A CN 111372354A
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Abstract
The application relates to an information display lamp and an information display control device and method thereof, which scan by outputting scanning signals to a display lamp array. And controlling the display lamp array to display corresponding information according to the stored data in the current memory, and controlling the display lamp array to display corresponding information according to the stored data in the next memory when the preset display information switching condition is met. When the condition that the display information switching is met is detected, the display content of the display lamp array is automatically switched, so that the information display lamp has the function of switching the display content, the indicating effect is better, and the use reliability is improved.
Description
Technical Field
The present disclosure relates to display control technologies, and in particular, to an information display lamp, and an information display control apparatus and method thereof.
Background
With the development of society and the continuous progress of science and technology, people pay more and more attention to public safety. The emergency lighting is widely applied to places such as schools, units, communities and the like as an information display lamp, and provides guidance for users by displaying related information, such as guidance of escape directions and the like in case of fire, so as to provide for emergency evacuation indication for fire fighting.
In a conventional information display lamp, a lamp housing is designed to have a shape with specific guide information (such as characters, arrows, and the like), and a display lamp provided inside the housing is controlled to be turned on. Because the information display lamp can only provide single guide information, the indicating effect is poor, and people can not be effectively guided to evacuate. The traditional information display lamp has the defect of poor use reliability.
Disclosure of Invention
In view of the above, it is desirable to provide an information display lamp with high reliability, and an information display control device and method thereof.
An information display control device of an information display lamp comprises a line scanning controller, a line scanning driving circuit and a column control circuit, wherein the line scanning controller is connected with the line scanning driving circuit, the line scanning driving circuit is used for being connected with a display lamp array of the information display lamp, and the column control circuit is used for being connected with the display lamp array;
the line scanning controller is used for controlling the line scanning driving circuit to output scanning signals to the display lamp array and scanning the display lamp array; the column control circuit is used for controlling the display lamp array to display corresponding information according to the stored data in the current memory; and when the display lamp array is detected to meet the preset display information switching condition, controlling the display lamp array to display corresponding information according to the stored data in the next memory.
An information display control method of an information display lamp comprises the following steps:
outputting a scanning signal to a display lamp array of an information display lamp, and scanning the display lamp array;
controlling the display lamp array to display corresponding information according to the stored data in the current memory;
and when the display lamp array is detected to meet the preset display information switching condition, controlling the display lamp array to display corresponding information according to the stored data in the next memory.
An information display lamp comprises a display lamp array and the information display control device.
According to the information display lamp and the information display control device and method thereof, the scanning is carried out by outputting the scanning signal to the display lamp array. And controlling the display lamp array to display corresponding information according to the stored data in the current memory, and controlling the display lamp array to display corresponding information according to the stored data in the next memory when the preset display information switching condition is met. When the condition that the display information switching is met is detected, the display content of the display lamp array is automatically switched, so that the information display lamp has the function of switching the display content, the indicating effect is better, and the use reliability is improved.
Drawings
Fig. 1 is a block diagram of an information display control apparatus of an information display lamp according to an embodiment;
FIG. 2 is a schematic diagram of an information display control apparatus of an information display lamp according to an embodiment;
FIG. 3 is a schematic diagram of the structure of a row scan controller and a row scan driving circuit in one embodiment;
FIG. 4 is a schematic diagram of a column control circuit according to an embodiment;
FIG. 5 is a schematic diagram of a display lamp array according to an embodiment;
FIG. 6 is a schematic diagram of a scan timer interrupt in one embodiment;
FIG. 7 is a schematic diagram of information display in one embodiment;
FIG. 8 is a schematic diagram illustrating the control principle of the information display control apparatus according to an embodiment;
fig. 9 is a flowchart of an information display control method of an information display lamp according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, an information display control device of an information display lamp is provided, and the information display lamp can be an emergency lamp and the like. As shown in fig. 1, the information display control device includes a row scan controller 110, a row scan driving circuit 120, and a column control circuit 130, where the row scan controller 110 is connected to the row scan driving circuit 120, the row scan driving circuit 120 is used to connect to a display lamp array 210 of an information display lamp, and the column control circuit 130 is used to connect to the display lamp array 210. The line scan controller 110 is used for controlling the line scan driving circuit 120 to output a scan signal to the display lamp array 210, so as to scan the display lamp array 210. The column control circuit 130 is configured to control the display lamp array 210 to display corresponding information according to the stored data in the current memory, and control the displayed lamp array 210 to display corresponding information according to the stored data in the next memory when it is detected that the preset display information switching condition is met.
Specifically, when it is necessary to control the display lamp array 210 of the information display lamp to be turned on for information guidance, the row scanning controller 110 outputs a control instruction to the row scanning driving circuit 120 to control the row scanning driving circuit 120 to output a scanning signal to scan the display lamp array 210, and the column control circuit 130 controls the turning on and off of the display lamps in the display lamp array 210 in combination with the scanning signal output by the row scanning driving circuit 120, so as to control the display lamp array 210 to display corresponding information. When the display lamps of a certain row are scanned by the scanning signal output from the row scanning driving circuit 120, the column control circuit 130 turns on all or part of the display lamps of the row being scanned. After the scanning of the whole display lamp array 210 is completed, the corresponding information such as characters or patterns can be displayed on the display lamp array 210, so as to guide people to escape.
The column control circuit 130 may divide a plurality of memory spaces in advance for storing screen filling data, each memory space corresponds to a pair of data of display content, and the memory space in which data is not stored serves as a free buffer area for buffering new screen filling data when a display screen needs to be switched subsequently. Furthermore, a memory tag can be set for each memory space to determine the use sequence of each memory space. In an embodiment, when detecting that the preset display information switching condition is met, the column control circuit 130 writes data related to the content to be displayed into the next memory according to a preset memory tag, and controls the display lamp array 210 to display corresponding information according to the stored data in the next memory. After controlling the display lamp array 210 to display information according to the data in a certain memory space, if it is detected that the display information switching condition is met, the column control circuit 130 generates new screen filling data to fill in the next vacant memory space, and then directs the content of the display lamp array 210 to the new memory space to realize the switching of the display picture. It is understood that, in other embodiments, the column control circuit 130 may also store related data in different memory spaces in advance, and when the display screen needs to be switched, the display lamp array 210 may be directly controlled to display corresponding information according to the data in the next memory space.
The specific content of the display information switching condition is not unique, and in one embodiment, the display information switching condition includes receiving an information switching instruction. Specifically, the operator can perform switching control of the display screen by sending an information switching instruction to the column control circuit 130. When the information display lamp needs to be controlled to switch the display content, an operator can send an information switching instruction to the column control circuit 130 through the control terminal to control the information display lamp to switch the display content. An operator can send an instruction according to actual requirements to adjust and control the display picture of the information display lamp, and the operation is simple, convenient and quick.
Further, the control terminal and the column control circuit 130 may communicate by wire or wirelessly. In one embodiment, the information display control device further includes a wireless communication device connected to the column control circuit 130, and the column control circuit 130 receives an information switching instruction transmitted from the control terminal through the wireless communication device. The display picture switching of the information display lamp is controlled in a wireless mode, and the operation convenience is further improved.
In another embodiment, the display information switching condition includes that the display time of the content currently displayed by the display lamp array 210 reaches a preset threshold. The specific value of the preset threshold is not unique and can be set according to the actual situation. When the current display content of the display lamp array 210 reaches the set duration, the column control circuit 130 automatically controls the display lamp array 210 to switch the display frames, without manual intervention, and the operation is simple, convenient and reliable.
In one embodiment, when detecting that the preset emergency condition is met, the line scan controller 110 controls the line scan driving circuit 120 to output a scan signal to the display lamp array 210 according to a preset line scan period, so as to scan the display lamp array 210; and is further configured to control the line scan driving circuit to adjust a duty ratio of the scan signal in the line scan period to decrease the brightness of the display lamp array 210 when the preset power-saving lighting condition is detected to be met.
Specifically, the line scan controller 110 outputs a control command to the line scan driving circuit 120 to control the line scan driving circuit 120 to output a scan signal according to a preset line scan period to scan the display lamp array 210, and adjusts a duty ratio of the scan signal in the scan period according to the detected satisfied condition to change the brightness of the display lamp array 210. The line scanning period refers to a scanning period for each line of display lamps in the display lamp array 210, and the specific value is not unique and can be adjusted according to actual conditions. The scan signal is transmitted to the display lamp array 210 in the line scan period, and the turn-on time of the display lamp array 210 is controlled in combination with the duty ratio adjustment, thereby realizing the brightness adjustment.
The adjusting of the duty ratio of the scanning signal in the line scanning period to reduce the brightness of the display lamp array 210 means that the ratio of the level controlling the lighting of the display lamps in the corresponding line in the scanning period to the whole scanning period is reduced by performing level control on the output scanning signal, so that the lighting time of the display lamps in each line in the scanning period is reduced, and the brightness of the display lamp array 210 is reduced. The scanning signal output by the line scanning driving circuit 120 may specifically be to control the display lamp to be turned on at a high level and to control the display lamp to be turned off at a low level; the display lamp may be controlled to be turned on at a low level and to be turned off at a high level. In one embodiment, the line scan controller 110 controls the line scan driving circuit 120 to output a low level to turn on the display lamp in the line scan period when it is detected that the preset emergency condition is met, that is, controls the display lamp to turn on in the emergency mode in the whole scan period to highlight the display lamp array 210. When detecting that the preset power-saving lighting condition is met, the line scan controller 110 controls the line scan driving circuit 120 to reduce the proportion of the low level in the scanning period, so that the brightness of the display lamp array 210 is reduced in the power-saving lighting mode, and energy is saved.
By controlling the duty ratio of the scanning signal in the scanning period, the display lamp array 210 has different display brightness when meeting the emergency condition and meeting the power-saving lighting condition, so that the brightness of the display lamp array 210 is adjusted, the information display lamp has display brightness change under different conditions, the indicating effect is more obvious, and the use reliability is further improved.
The specific contents of the emergency condition and the power-saving lighting condition are not unique and can be set according to actual requirements. In one embodiment, the emergency condition includes receiving an emergency control command and the power saving lighting condition includes receiving a power saving control command. Specifically, the operator may switch the modes of the information display lamp by sending a control command to the line scan controller 110. When the information display lamp needs to be controlled to enter the emergency mode, an operator can send an emergency control instruction to the line scanning controller 110 through the control terminal to control the information display lamp to enter the emergency mode, and the display lamp array 210 highlights. When the information display lamp needs to be controlled to enter the power-saving lighting mode, an operator can send a power-saving control instruction to the line scanning controller 110 through the control terminal to control the information display lamp to enter the power-saving lighting mode, so that the brightness of the display lamp array 210 is reduced. An operator can send a corresponding control instruction according to actual requirements to adjust the mode of controlling the information display lamp, and the operation is simple, convenient and quick.
Further, the control terminal and the line scan controller 110 may also communicate in a wired or wireless manner. In one embodiment, the line scan controller 110 is connected to a wireless communication device, and the line scan controller 110 receives a control instruction transmitted by the control terminal through the wireless communication device. The mode of controlling the information display lamp in a wireless mode is controlled, and the operation convenience is further improved.
In another embodiment, the emergency condition comprises detecting a power outage in the power supply network and the power saving ignition condition comprises detecting that the power supply network is not powered down. Specifically, the line scan controller 110 may be connected to a power supply network, which may be powered off when an emergency such as a fire or earthquake occurs. When the power failure of the power supply network is detected, the information display lamp is controlled to enter an emergency mode, and the display lamp array 210 highlights, so that escape guidance is provided for people. When the power supply network is normal, the information display lamp can be controlled to be in the power-saving lighting mode, energy consumption is reduced, and the indicating effect of the information display lamp can be improved through brightness change in different modes.
In the embodiment, the mode switching of the information display lamp is directly carried out according to the power supply state of the power supply network, so that the information display lamp has the function of displaying brightness change under different conditions, and is timely switched into highlight display under emergency conditions to provide guidance for people, and the operation is more reliable.
In another embodiment, the contingency condition comprises the detected ambient temperature being less than a preset temperature threshold and the power saving lighting condition comprises the detected ambient temperature being greater than or equal to the preset temperature threshold. The specific value of the preset temperature threshold is not unique, specifically, the information display control device may include a temperature sensor connected to the line scanning controller 110, the temperature sensor detects the ambient temperature of the information display lamp, generates a sensing signal and sends the sensing signal to the line scanning controller 110, and the line scanning controller 110 obtains the ambient temperature according to the sensing signal. When the ambient temperature is lower than the preset temperature threshold, it may be considered to be at night, the line scanning controller 110 controls the information display lamp to enter the emergency mode, and the display lamp array 210 highlights so that people can clearly see the information displayed by the information display lamp. When the ambient temperature is less than or equal to the preset temperature threshold, it can be considered as being in the daytime, and the line scanning controller 110 controls the information display lamp to be in the power-saving lighting mode, so as to reduce energy consumption.
In the embodiment, the mode switching is performed by sensing the environment information of the information display lamp, so that the display mode can be automatically switched according to the environment, and the operation reliability of the information display lamp can be improved.
When the information display lamp is in different modes, the line scan controller 110 controls the line scan driving circuit 120 to output a scan signal to scan the display lamp array 210. The specific manner of scanning the display lamp array 210 is not limited to one, and may be progressive scanning or interlaced scanning. In one embodiment, the line scan controller 110 controls the line scan driving circuit 120 to interlace the display lamp array 210, so as to ensure that the display lamp array 210 has better display effect.
When it is necessary to control the information display lamp to enter the power-saving lighting mode, the specific way in which the row scan controller 110 controls the row scan driving circuit 120 to adjust the duty ratio of the scan signal in the row scan period is not unique. In one embodiment, the line scan controller 110 controls the line scan driving circuit 120 to adjust the duty ratio of the scan signal in the line scan period according to a preset power-saving brightness threshold when detecting that the preset power-saving lighting condition is met. The specific value of the power saving brightness threshold is not unique, and in one embodiment, the power saving brightness threshold can be set to be one fifth of the brightness of the information display lamp when highlighted in the emergency mode. Specifically, the row scan controller 110 can control the low level of the scan signal output by the row scan driving circuit 120 to account for one fifth of the whole scan period, so that the display lamps in each row of the display lamp array 210 are only lighted within one fifth of the scan period, thereby achieving the purpose of reducing the brightness of the display lamp array 210. Further, in this embodiment, the scanning signal output by the row scanning driving circuit 120 is at a low level for a period of one fifth of the scanning period from the start time of the scanning period. The display control is simple, convenient and reliable by controlling the display lamps of each row to light in the initial time period of the display period.
Further, in one embodiment, the line scan controller 110 is further configured to receive a brightness threshold adjustment instruction, and adjust the power-saving brightness threshold according to the brightness threshold adjustment instruction. Similarly, an operator can also send a brightness threshold adjusting instruction to the line scanning controller 110 through the control terminal to adjust the stored power-saving brightness threshold, so that the operator can change the display brightness of the information display lamp in the power-saving lighting mode according to actual requirements, and the use convenience of the information display lamp is improved.
In addition, as shown in fig. 2, the number of the row scan controller 110, the row scan driving circuit 120 and the column control circuit 130 is not only one, but may be one, or two or more, and is specifically adjusted according to the number of the display lamps in the display lamp array 210. It is understood that the specific types and structures of the row scan controller 110, the row scan driving circuit 120 and the column control circuit 130 are not exclusive, and as shown in fig. 3, the row scan controller 110 employs a control chip IC 8. Specifically, the control chip IC8 may be a serial-in and parallel-out chip with a model 74HC 595. In one embodiment, the row scan driving circuit 120 includes two or more row driving units, and each row driving unit is connected to the row scan controller 110 and is respectively connected to the display lamps in the corresponding row of the display lamp array 210. The specific type of the display lamp array 210 is not exclusive, and in one embodiment, the display lamp array 210 is an LED (Light Emitting Diode) matrix.
The type and number of the row driving units are not exclusive, and as shown in fig. 3, the row driving units may specifically include a driving chip IC7, a driving chip IC9, a driving chip IC10, and a driving chip IC 11. Each driving chip is connected with the control chip IC8, and each driving chip is respectively connected with two rows of LED lamps in the LED matrix. In this embodiment, the driving chip may be a 4953 chip, and the port LED _ ROW 1-port LED _ ROW8 are respectively connected to a corresponding ROW of LED lamps. Further, as shown in fig. 4, the column control circuit 130 includes a chip IC1 and peripheral circuits, and a chip IC1 connects the display lamp array 210 and the peripheral circuits. Specifically, the chip IC1 is connected to the LED matrix and receives external signals through peripheral circuits. In this embodiment, the chip IC1 may specifically adopt a chip with a model number MB15043, and the port LED _ G1-port LED _ G16 are respectively connected to a row of corresponding LED lamps in the LED matrix. At this time, the LED matrix is designed as a matrix with 8 rows and 16 columns, each row and each column is connected to a corresponding port, and the luminance and the displayed information of the LED matrix are controlled by cooperation of the row scan controller 110, the row scan driving circuit 120, and the column control circuit 130.
It is understood that the LED matrix is not limited to a matrix designed into 8 rows and 16 columns, and as shown in fig. 5, the LED matrix is a small matrix of 4X4, and is composed of LED lamps D28-D31, D63-D66, D98-D101, and D133-D136. The ROWs of the LED matrix are connected to the ROW scan driving circuit 120 through the port LED _ ROW 1-port LED _ ROW4, and the columns of the LED matrix are connected to the column control circuit 130 through the port LED _ G1-port LED _ G4. The small matrix control procedure of 4X4 is as follows:
the voltage of the LED _ ROW1 is electrified by 5V, and meanwhile, the voltage of the LED _ ROW2, the LED _ ROW3 and the LED _ ROW4 are 0; the data required for the first row is sent to LED _ G1, LED _ G2, LED _ G3, LED _ G4.
The voltage of the LED _ ROW2 is electrified by 5V, and meanwhile, the voltage of the LED _ ROW1, the LED _ ROW3 and the LED _ ROW4 are 0; the data required for the second row is sent to LED _ G1, LED _ G2, LED _ G3, LED _ G4.
The voltage of the LED _ ROW3 is electrified by 5V, and meanwhile, the voltage of the LED _ ROW1, the LED _ ROW2 and the LED _ ROW4 are 0; the data required for the third row is transmitted to LED _ G1, LED _ G2, LED _ G3, LED _ G4.
The voltage of the LED _ ROW4 is electrified by 5V, and meanwhile, the voltage of the LED _ ROW1, the LED _ ROW2 and the LED _ ROW3 are 0; the data required for the fourth row is sent to LED _ G1, LED _ G2, LED _ G3, LED _ G4.
For the whole LED matrix, the on-off of each row is controlled by the serial-in and parallel-out 74HC595 chips respectively, so as to scan the whole screen. To achieve a good effect, interlaced scanning is performed for each scanning line. For example, rows 1,3,5,7,9 are aligned first. . . . Scan, and then for rows 2,4,6,8, 10. . . . A scan is performed. When the 74HC595 chip performs line scanning, a scanning timer interrupt method is adopted, the interrupt time is 100us, and fig. 6 is a schematic diagram of the scanning timer interrupt.
The screen data switching principle of the LED matrix is as follows:
one display picture of the LED matrix corresponds to one memory area, and each bit in the memory corresponds to one light-emitting diode on the LED matrix; when the memory is 1, the corresponding point of the LED matrix is lighted. As shown in fig. 7, the memory area corresponding to the black dot is 1. Every 8 points are stored by one byte, and the 16x64 points in the figure require 128 bytes to store the whole. When the display screen is switched, 128 memory spaces of the LED matrix are additionally distributed, the content to be displayed is filled in the corresponding bytes of the new memory, the content of the LED matrix is pointed to the new memory space, and the switching of the display content can be realized by combining high-speed data serial-in and parallel-out hardware. Fig. 8 is a schematic diagram of a control principle of the information display control apparatus, and when it is detected that a screen cut is required, new screen data is generated and copied to a free buffer. And switching the display to a buffer area filled with new data, automatically updating the display data under the control of a scanning program, and then entering a switching process again to prepare for next screen switching.
The information display control device of the information display lamp controls the line scanning driving circuit 120 to output the scanning signal to the display lamp array 210 for scanning through the line scanning controller 110. The column control circuit 130 controls the display lamp array 210 to display corresponding information according to the stored data in the current memory, and controls the display lamp array 210 to display corresponding information according to the stored data in the next memory when it is detected that the preset display information switching condition is met. When the condition that the display information switching is met is detected, the content displayed by the display lamp array 210 is automatically switched, so that the information display lamp has the function of switching the display content, the indicating effect is better, and the use reliability is improved.
In one embodiment, an information display control method of an information display lamp is provided, and the information display lamp can be an emergency lamp and the like. As shown in fig. 9, the method includes:
step S110: and outputting a scanning signal to a display lamp array of the information display lamp to scan the display lamp array.
Specifically, when the display lamp array of the information display lamp needs to be controlled to be lit for information guidance, the line scanning controller may output a control instruction to the line scanning driving circuit to control the line scanning driving circuit to output a scanning signal to scan the display lamp array.
In one embodiment, step S110 includes: when the condition that the preset emergency condition is met is detected, controlling a line scanning driving circuit to output a scanning signal to a display lamp array according to a preset line scanning period, and scanning the display lamp array; and when the preset power-saving lighting condition is detected to be met, controlling the line scanning driving circuit to adjust the duty ratio of the scanning signal in the line scanning period so as to reduce the brightness of the display lamp array.
The specific contents of the emergency condition and the power-saving lighting condition are not unique and can be set according to actual requirements. In one embodiment, the emergency condition includes receiving an emergency control command and the power saving lighting condition includes receiving a power saving control command. In another embodiment, the emergency condition comprises detecting a power outage in the power supply network and the power saving ignition condition comprises detecting that the power supply network is not powered down. In another embodiment, the contingency condition comprises the detected ambient temperature being less than a preset temperature threshold and the power saving lighting condition comprises the detected ambient temperature being greater than or equal to the preset temperature threshold.
When the information display lamp is in different modes, scanning signals are output to scan the display lamp array. The specific manner of scanning the display lamp array is not limited to one, and the scanning may be progressive scanning or interlaced scanning. In one embodiment, the line scanning controller controls the line scanning driving circuit to perform interlaced scanning on the display lamp array, so as to ensure that the display lamp array has a better display effect.
When it is necessary to control the information display lamp to enter the power-saving lighting mode, the specific way in which the row scan controller controls the row scan driving circuit to adjust the duty ratio of the scan signal in the row scan period is not unique. In one embodiment, controlling the line scanning driving circuit to adjust the duty ratio of the scanning signal in the line scanning period when the preset power-saving lighting condition is detected to be met comprises: and when the condition that the preset power-saving lighting condition is met is detected, controlling the line scanning driving circuit to adjust the duty ratio of the scanning signal in the line scanning period according to a preset power-saving brightness threshold value. The specific value of the power saving brightness threshold is not unique, and in one embodiment, the power saving brightness threshold can be set to be one fifth of the brightness of the information display lamp when highlighted in the emergency mode. Further, in an embodiment, after controlling the line scan driving circuit to adjust the duty ratio of the scan signal in the line scan period according to the preset power-saving brightness threshold, the method may further include receiving a brightness threshold adjustment instruction, and adjusting the power-saving brightness threshold according to the brightness threshold adjustment instruction.
Step S120: and controlling the display lamp array to display corresponding information according to the stored data in the current memory.
Correspondingly, the on-off of the display lamps in the display lamp array can be controlled by combining the scanning signals output by the column control circuit and the row scanning driving circuit, so that the display lamp array is controlled to display corresponding information. When the display lamps in a certain row are scanned by the scanning signal output by the row scanning driving circuit, the column control circuit enables all or part of the display lamps in the scanning row to be lightened. After the scanning of the whole display lamp array is finished, corresponding information such as characters or patterns can be displayed on the display lamp array, and people can be guided to escape.
Step S130: and when the display lamp array is detected to meet the preset display information switching condition, controlling the display lamp array to display corresponding information according to the stored data in the next memory.
The column control circuit can divide a plurality of memory spaces in advance to be used for storing screen filling data, each memory space corresponds to a pair of data of display content, the memory space which does not store the data is used as a free buffer area, and the memory space is used for caching new screen filling data when a display screen needs to be switched subsequently. Furthermore, a memory tag can be set for each memory space to determine the use sequence of each memory space. In one embodiment, step S130 includes: and when the condition that the preset display information switching is met is detected, writing the data related to the content to be displayed into the next memory according to the preset memory tag, and controlling the display lamp array to display the corresponding information according to the stored data in the next memory. After controlling the display lamp array to display information according to the data of a certain memory space, if the condition that the display information is switched is detected to be met, the column control circuit generates new screen filling data to be filled into the next vacant memory space, and then the content of the display lamp array is pointed to the new memory space to realize the switching of the display picture.
The specific content of the display information switching condition is not unique, and in one embodiment, the display information switching condition includes receiving an information switching instruction. In another embodiment, the display information switching condition includes that the display time of the content currently displayed by the display lamp array reaches a preset threshold.
For specific limitations of the information display control method of the information display lamp, reference may be made to the above limitations of the information display control device of the information display lamp, which are not described herein again.
According to the information display control method of the information display lamp, when the condition that the display information switching is met is detected, the content displayed by the display lamp array is automatically switched, so that the information display lamp has the function of switching the display content, the indicating effect is better, and the use reliability is improved.
In one embodiment, an information display lamp is provided, and particularly can be an emergency lamp and the like. The information display lamp comprises a display lamp array and the information display control device. Wherein, the display lamp array can adopt an LED matrix.
According to the information display lamp, when the condition that the display information switching is met is detected, the content displayed by the display lamp array is automatically switched, so that the information display lamp has the function of switching the display content, the indicating effect is better, and the use reliability is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The information display control device of the information display lamp is characterized by comprising a line scanning controller, a line scanning driving circuit and a column control circuit, wherein the line scanning controller is connected with the line scanning driving circuit, the line scanning driving circuit is used for connecting a display lamp array of the information display lamp, and the column control circuit is used for connecting the display lamp array;
the line scanning controller is used for controlling the line scanning driving circuit to output scanning signals to the display lamp array and scanning the display lamp array; the column control circuit is used for controlling the display lamp array to display corresponding information according to the stored data in the current memory; and when the display lamp array is detected to meet the preset display information switching condition, controlling the display lamp array to display corresponding information according to the stored data in the next memory.
2. The information display control device according to claim 1, wherein the display information switching condition includes reception of an information switching instruction, or the display information switching condition includes that a display time of a content currently displayed by the display lamp array reaches a preset threshold value.
3. The information display control device according to claim 1, wherein the column control circuit writes data related to the content to be displayed into a next memory according to a preset memory tag when detecting that a preset display information switching condition is met, and controls the display lamp array to display corresponding information according to stored data in the next memory.
4. The information display control device according to claim 1, wherein the line scan controller controls the line scan driving circuit to output a scan signal to the display lamp array according to a preset line scan cycle to scan the display lamp array when detecting that a preset emergency condition is met; and the control circuit is also used for controlling the line scanning driving circuit to adjust the duty ratio of a scanning signal in a line scanning period when the preset electricity-saving lighting condition is detected to be met, so as to reduce the brightness of the display lamp array.
5. The information display control apparatus according to claim 4, wherein the emergency condition includes reception of an emergency control instruction, and the power-saving lighting condition includes reception of a power-saving control instruction; or
The emergency condition comprises detecting a power supply network outage, and the power saving lighting condition comprises detecting that the power supply network outage is not powered off; or
The emergency condition includes that the detected ambient temperature is less than a preset temperature threshold, and the power-saving lighting condition includes that the detected ambient temperature is greater than or equal to the preset temperature threshold.
6. The information display control device according to claim 4, wherein the line scan controller controls the line scan driving circuit to adjust a duty ratio of the scan signal in the line scan period according to a preset power-saving luminance threshold value when it is detected that a preset power-saving lighting condition is met.
7. The information display control apparatus according to claim 4, wherein the line scan controller controls the line scan driving circuit to perform interlaced scanning or progressive scanning on the display lamp array.
8. The information display control device according to any one of claims 1 to 7, wherein the line scan driving circuit includes two or more line driving units, and each line driving unit is connected to the line scan controller and is connected to the display lamps in a corresponding line of the display lamp array.
9. An information display control method of an information display lamp is characterized by comprising the following steps:
outputting a scanning signal to a display lamp array of an information display lamp, and scanning the display lamp array;
controlling the display lamp array to display corresponding information according to the stored data in the current memory;
and when the display lamp array is detected to meet the preset display information switching condition, controlling the display lamp array to display corresponding information according to the stored data in the next memory.
10. An information display luminaire comprising an array of display lights and an information display control device as claimed in any one of claims 1 to 8.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222409B (en) * | 1963-03-22 | 1966-08-04 | American Sign & Indicator Co | Control circuit for controlling lamp fields |
| BE683648A (en) * | 1965-07-06 | 1966-12-16 | ||
| JPS5283197A (en) * | 1975-12-31 | 1977-07-11 | Matsushita Electric Works Ltd | Evacuation guiding lamp |
| EP0464418A2 (en) * | 1990-07-04 | 1992-01-08 | Telenorma Gmbh | Circuit arrangement for controlling display elements disposed in the form of a matrix |
| JPH0667804A (en) * | 1992-02-17 | 1994-03-11 | Komatsu Ltd | Touch screen display device |
| JP2005107316A (en) * | 2003-09-30 | 2005-04-21 | Nagoya Electric Works Co Ltd | Display switching device of information display apparatus |
| US20080068357A1 (en) * | 2006-09-14 | 2008-03-20 | Au Optronics Corp. | Driving Control Apparatus and Method for Use with a Display Array |
| US20120327108A1 (en) * | 2009-12-24 | 2012-12-27 | Panasonic Corporation | Image display apparatus, image display circuit, and image display method |
| CN203118409U (en) * | 2012-10-17 | 2013-08-07 | 南京信息工程大学 | Self-adapting brightness adjusting LED display system |
| CN104392698A (en) * | 2014-12-17 | 2015-03-04 | 广州新视界光电科技有限公司 | LED display device and LED screen brightness uniformity regulating method |
| CN204375362U (en) * | 2015-01-19 | 2015-06-03 | 湖南汇博电子技术有限公司 | A kind of fire-fighting evacuation pilot lamp |
| CN107967906A (en) * | 2018-01-15 | 2018-04-27 | 南京熊猫电子制造有限公司 | A kind of liquid crystal display based on reverse electrode drive circuit |
| CN109036272A (en) * | 2018-08-29 | 2018-12-18 | 芯颖科技有限公司 | Multi-line addressing driving system and method |
| CN209930554U (en) * | 2018-12-25 | 2020-01-10 | 湖南汇博电子科技股份有限公司 | Information display lamp and information display control device thereof |
-
2018
- 2018-12-25 CN CN201811587944.8A patent/CN111372354B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222409B (en) * | 1963-03-22 | 1966-08-04 | American Sign & Indicator Co | Control circuit for controlling lamp fields |
| BE683648A (en) * | 1965-07-06 | 1966-12-16 | ||
| JPS5283197A (en) * | 1975-12-31 | 1977-07-11 | Matsushita Electric Works Ltd | Evacuation guiding lamp |
| EP0464418A2 (en) * | 1990-07-04 | 1992-01-08 | Telenorma Gmbh | Circuit arrangement for controlling display elements disposed in the form of a matrix |
| JPH0667804A (en) * | 1992-02-17 | 1994-03-11 | Komatsu Ltd | Touch screen display device |
| JP2005107316A (en) * | 2003-09-30 | 2005-04-21 | Nagoya Electric Works Co Ltd | Display switching device of information display apparatus |
| US20080068357A1 (en) * | 2006-09-14 | 2008-03-20 | Au Optronics Corp. | Driving Control Apparatus and Method for Use with a Display Array |
| US20120327108A1 (en) * | 2009-12-24 | 2012-12-27 | Panasonic Corporation | Image display apparatus, image display circuit, and image display method |
| CN203118409U (en) * | 2012-10-17 | 2013-08-07 | 南京信息工程大学 | Self-adapting brightness adjusting LED display system |
| CN104392698A (en) * | 2014-12-17 | 2015-03-04 | 广州新视界光电科技有限公司 | LED display device and LED screen brightness uniformity regulating method |
| CN204375362U (en) * | 2015-01-19 | 2015-06-03 | 湖南汇博电子技术有限公司 | A kind of fire-fighting evacuation pilot lamp |
| CN107967906A (en) * | 2018-01-15 | 2018-04-27 | 南京熊猫电子制造有限公司 | A kind of liquid crystal display based on reverse electrode drive circuit |
| CN109036272A (en) * | 2018-08-29 | 2018-12-18 | 芯颖科技有限公司 | Multi-line addressing driving system and method |
| CN209930554U (en) * | 2018-12-25 | 2020-01-10 | 湖南汇博电子科技股份有限公司 | Information display lamp and information display control device thereof |
Non-Patent Citations (2)
| Title |
|---|
| 乔威;王小利;: "智能点阵电子显示屏控制系统设计", 实验室研究与探索, no. 02, pages 37 - 39 * |
| 余金栋;: "书写式LED点阵显示屏的设计", 电子技术, no. 12, pages 51 - 53 * |
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|---|---|
| CN111372354B (en) | 2023-10-13 |
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