Static LED display installation and debugging method

Abstract

The present invention discloses a method for installing and debugging a static LED display screen, which automatically obtains the module identification number of each LED lamp bead packaging module of the static LED display screen, and then writes the corresponding module driver to each LED lamp bead packaging module; at the same time, each box position of the static LED display screen is also identified. The present invention can realize fast and batch installation and debugging of the display screen, avoiding errors caused by manual input.

Description

Technical Field

[0001] The invention relates to the field of LED display screens, and in particular to a method for installing and debugging a static LED display screen. Background Art

[0002] At present, the driving methods of display devices can be roughly divided into two types, one type is the passive matrix PM driving method, and the other type is the active matrix AM driving method. The cost of the PM driving method is relatively low and it is easy to implement technically. However, with the improvement of display resolution, the scanning time of each line per unit time is shortened. Especially when applied to large-size display devices, it is difficult for the PM driving method to achieve a large display high-resolution effect. In order to solve the above problems, the display device can be divided into several areas for driving. The driving structure of this method is relatively complex, and there are brightness differences between the divided areas. The AM driving method can obtain better brightness uniformity and contrast, as well as higher resolution. Therefore, display devices using the AM driving method are becoming more and more popular.

[0003] The installation and debugging of traditional LED display screens are very troublesome. Generally, after installing the LED display screen according to the established rules, it is necessary to manually copy the identification number of each module, and then open the relevant driver and related information according to the identification number, and send it to the corresponding box to achieve normal display of the LED display screen. Using the above method, the installation and debugging process is very complicated and it is easy to make mistakes, which affects the efficiency of installation and debugging. Therefore, it is necessary to study a solution to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a method for installing and debugging a static LED display screen, which utilizes the data stored in the storage module of the driver chip of each LED lamp bead packaging module of the static LED display screen and cooperates with a cloud server to achieve rapid and batch installation and debugging of the static LED display screen.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A method for installing and debugging a static LED display screen comprises a static LED display screen to be debugged, installation and debugging software, a cloud server and a photographic device; the static LED display screen to be debugged comprises a control terminal and a plurality of spliced ​​boxes; the box has a receiving card and a plurality of display modules connected to the receiving card; each display module comprises a display circuit board and a plurality of LED lamp bead packaging modules, each LED lamp bead packaging module is arranged in an array on the display circuit board; the LED lamp bead packaging module comprises a packaging substrate and an LED chip group and a driver chip packaged on the packaging substrate; the driver chip integrates a control module, a communication module, a storage module, a current configuration module and three constant current drive modules, the control module is respectively connected to the communication module and the storage module, the control module is respectively connected to the three constant current drive modules, and the control module is also respectively connected to the three constant current drive modules through the current configuration module; the number of the LED chip groups is multiple and each LED chip group is arranged in an array on the same side of the packaging substrate, each LED chip group comprises a red light LED chip, a green light LED chip and a blue light LED chip; each LED chip group The red LED chips, green LED chips and blue LED chips of the chip group are respectively connected to the output ends of the three constant current drive modules of the driver chip; and the red LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, the green LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, and the blue LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module; the driver chip of the LED lamp bead packaging module of each display module of each box is connected to the receiving card of the box, and the storage module of the LED lamp bead packaging module stores the module identification number of the LED lamp bead packaging module; a sending card is provided in the control terminal, and the control terminal communicates with the receiving cards of each box through the sending card to implement control; the control terminal is connected to the cloud server through the Internet, and the control terminal is also configured to import and identify the photos taken by the photographic device; the cloud server stores all module identification numbers and the driver programs corresponding to the module identification numbers; the photographic device is used to shoot and output the display screen of the static LED display screen;

[0007] The static LED display installation and debugging method comprises the following steps:

[0008] Step 1: Install and debug the static LED display screen through the control terminal of the installation and debugging software, so that the sending card of the control terminal sends a module identification number collection instruction to the receiving card of each box of the static LED display screen;

[0009] Step 2: After the receiving card of each box receives the module identification number collection instruction, the receiving card of each box communicates with the driver chips of all the LED lamp bead packaging modules of the box, so that the driver chips of all the LED lamp bead packaging modules of the box first send the module identification number stored in the storage module of the driver chip to the receiving card of the box, and then the receiving card sends it to the control terminal via the sending card, so that the control terminal obtains the module identification number of each LED lamp bead packaging module of each box;

[0010] Step 3: The control terminal uploads all module identification numbers it has obtained to the cloud server and sends a command to retrieve the module driver program;

[0011] Step 4: The cloud server searches for the corresponding module driver according to the received module identification number, and sends the driver corresponding to the received module identification number to the control terminal in a manner corresponding to the module identification number;

[0012] Step 5: After receiving all module drivers, the control terminal distributes the module identification number and the corresponding module driver to the receiving card of the corresponding cabinet through the sending card according to the cabinet corresponding to the module identification number;

[0013] Step 6, the receiving card of each box absorbs the corresponding module driver into the storage module of the driver chip of the LED lamp bead packaging module corresponding to the module identification number according to the module identification number;

[0014] Step 7: The sending card of the control terminal sends a differentiated lighting instruction to the receiving card of each cabinet, and stores the visual content that should be displayed when each cabinet is differentially lit; when each cabinet is differentially lit, the visual content displayed by each cabinet is different;

[0015] Step 8: After receiving the differentiated lighting instruction, the receiving card of each cabinet drives the corresponding LED lamp bead packaging module to light up through the module driver written in the driver chip of each LED lamp bead packaging module of each display module, so that the cabinet displays the visual content required to be displayed by the differentiated lighting instruction;

[0016] Step 9: The photographic device captures the display screen of the static LED display screen, and the photos captured by the photographic device are imported into the control terminal;

[0017] Step 10: The control terminal identifies the photo taken by the photographic device, locates the position of each visual content in the display screen of the static LED display screen, and then determines and records the position of each cabinet on the static LED display screen.

[0018] The driver chip is also integrated with three chip identification modules, which correspond to the three constant current drive modules respectively. The input end and the ground end of each chip identification module are respectively connected to the power supply end and the ground end of the constant current drive module corresponding to the chip identification module, and the output ends of the three chip identification modules are connected to the control module; the anodes of the red LED chip, the green LED chip and the blue LED chip of each LED chip group are respectively connected to the output ends of the three constant current drive modules, and the cathodes of the red LED chip, the green LED chip and the blue LED chip of each LED chip group are grounded; and the anodes of the red LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, the anodes of the green LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, and the anodes of the blue LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module.

[0019] The chip identification module comprises a voltage sampling circuit, a subtractor circuit, and a threshold signal generating circuit; the input end and the ground end of the voltage sampling circuit are respectively connected to the input end and the ground end of the chip identification module, the output end of the voltage sampling circuit is connected to the first input end of the subtractor circuit, the output end of the threshold signal generating circuit is connected to the second input end of the subtractor circuit, and the output end of the subtractor circuit is connected to the output end of the chip identification module.

[0020] The driver chip also integrates three voltage regulating modules connected to the control module, and the output ends of the three voltage regulating modules are respectively connected to the power supply ends of the three constant current driving modules.

[0021] The voltage regulation module includes a PWM power drive circuit and a voltage stabilizing circuit connected to the output end of the PWM power drive circuit; the PWM power drive circuit of each voltage regulation module is connected to the control module, and the output end of the voltage stabilizing circuit of each voltage regulation module is connected to the output end of the voltage regulation module; the PWM power drive circuit of each voltage regulation module is also connected to the control module through a current limiting comparator.

[0022] The LED lamp bead packaging module also includes a packaging layer covering each LED chip group.

[0023] The packaging substrate is one of a glass substrate, a PCB board, a ceramic substrate or an FPC board.

[0024] The LED lamp bead packaging modules of the display module are cascaded, wherein the SDIOB pin of the first LED lamp bead packaging module is connected to the SDIOA pin of the second LED lamp bead packaging module, the SDIOB pin of the second LED lamp bead packaging module is connected to the SDIOA pin of the third LED lamp bead packaging module, and so on, the SDIOB pin of the second-to-last LED lamp bead packaging module is connected to the SDIOA pin of the first-to-last LED lamp bead packaging module; and the receiving card is respectively connected to the SDIOA pin of the first LED lamp bead packaging module and the SDIOB pin of the first-to-last LED lamp bead packaging module, and the receiving card is also connected to the CLK pins of each LED lamp bead packaging module.

[0025] Compared with the prior art, the above solution has the following beneficial effects:

[0026] 1. The present invention obtains the module identification number of each LED lamp bead packaging module through the control terminal, and downloads the corresponding module driver from the cloud server, and writes the corresponding module driver into the storage module of the driver chip of each LED lamp bead packaging module, so that the control terminal can drive and light up all the LED lamp bead packaging modules, so that the module driver can be issued accurately and quickly;

[0027] 2. The present invention uses a photographic device to shoot the display screen of the display screen, and imports the photos taken by the photographic device into the control terminal; the control terminal identifies the photos taken by the photographic device, and locates the position of each visual content in the display screen of the static LED display screen, and then determines and records the position of each box on the static LED display screen. In this way, the control terminal uses this as the basis for subsequent segmentation of the playback content, thereby realizing rapid and batch installation and debugging of the display screen, avoiding errors caused by manual input. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the LED lamp bead packaging module involved in the present invention;

[0029] Figure 2 This is a principle block diagram of the LED lamp bead packaging module driver chip involved in the present invention;

[0030] Figure 3 Part of the principle of the LED lamp bead packaging module driver chip of the present invention Figure 1 ;

[0031] Figure 4 Part of the principle of the LED lamp bead packaging module driver chip of the present invention Figure 2 ;

[0032] Figure 5 A connection diagram of a display screen of the present invention;

[0033] Figure 6 is a schematic structural diagram of a display module of the present invention;

[0034] Figure 7 A schematic diagram of the circuit connection between the receiving card and the display module of the present invention;

[0035] Figure 8 is a flow chart of the present invention;

[0036] Description of labels:

[0037] LED lamp bead packaging module A, packaging substrate 1, LED chip group 2, red LED chip 21, green LED chip 22, blue LED chip 23, driver chip 3, control module 31, communication module 32, storage module 33, current configuration module 34, constant current drive module 35, chip identification module 36, voltage sampling circuit 361, first sampling resistor 3611, second sampling resistor 3612, subtractor circuit 362, threshold signal generating circuit 363, voltage regulation module 37, PWM power driving circuit 371, first power MOS tube 3711, second power MOS tube 3712, power resistor 3713, voltage stabilizing circuit 372, voltage stabilizing inductor 3721, voltage stabilizing capacitor 3722, voltage stabilizing tube 3723, current limiting comparator 38, temperature detection module 39,

[0038] Box B, receiving card B1, display module B2, display circuit board B21,

[0039] Control terminal C, sending card C1. DETAILED DESCRIPTION

[0040] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0041] like Figure 5 and Figure 6 As shown, the present invention relates to a static LED display screen, which includes a control terminal C and a plurality of spliced ​​boxes B, wherein the box B has a receiving card B1 and a plurality of display modules B2 connected to the receiving card B1, each display module B2 includes a display circuit board B21, and a plurality of LED lamp bead packaging modules A, and each LED lamp bead packaging module A is arranged in an array on the display circuit board B21; the LED lamp bead packaging module A3 of each display module B2 of each box B is connected to the receiving card B1 of the box B; the control terminal C is provided with a sending card C1, and when the static LED display screen is controlled, the control terminal C communicates with the receiving card B1 of each box B through the sending card C1.

[0042] like Figures 1 to 4As shown, the LED lamp bead packaging module A includes a packaging substrate 1 and an LED chip group 2 and a driver chip 3 packaged on the packaging substrate 1, and the driver chip 3 is connected to the receiving card B1; wherein the driver chip 3 integrates a control module 31, a communication module 32, a storage module 33, a current configuration module 34 and three constant current drive modules 35, the control module 31 is connected to the communication module 32 and the storage module 33 respectively, and the control module 31 is connected to the three constant current drive modules 35 respectively through the current configuration module 34; the number of the LED chip groups 2 is multiple and each LED chip group 2 is arranged in an array on the same side of the packaging substrate 1, and each LED chip group 2 includes a red LED chip 21, a green LED chip 22 and a blue LED chip 23; the red LED chip 21, the green LED chip 22 and the blue LED chip 23 of each LED chip group 2 are respectively connected to the output ends of the three constant current drive modules 35 of the driver chip 3; and the red LED chips 21 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35, the green LED chips 22 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35, and the blue LED chips 23 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35. Figure 1 As shown, the number of LED chip groups 2 of the LED lamp bead packaging module A can be four, and the four LED chip groups 2 are distributed in a 2*2 array.

[0043] The packaging substrate 1 can be a glass substrate, a PCB board, a ceramic substrate, an FPC board, etc.

[0044] In the present invention, the storage module 33 of the driver chip 3 stores current configuration parameters for setting the output current of the constant current driver module 35, and the current configuration parameters are respectively a red light LED current setting value corresponding to the red light LED chip 21, a green light LED current setting value corresponding to the green light LED chip 22, and a blue light LED current setting value corresponding to the blue light LED chip 23; and the control module 31 of the driver chip 3 reads the current configuration parameters stored in the storage module 33, and the control module 31 of the driver chip 3 controls the current configuration module 34 according to the red light LED current setting value, the green light LED current setting value and the blue light LED current setting value, thereby controlling the output current of the three constant current driver modules 35 of the driver chip 3, so that the output current of each LED chip group 2 The constant current driving module 35 connected to the red LED chip 21 outputs the working current required by the red LED chip 21, so that the constant current driving module 35 connected to the green LED chip 22 of each LED chip group 2 outputs the working current required by the green LED chip 22, so that the constant current driving module 35 connected to the blue LED chip 23 of each LED chip group 2 outputs the working current required by the blue LED chip 23, so that the light emission consistency of each LED chip group 2 of the LED lamp bead packaging module A is good, and the light emission colors of the red LED chip 21, green LED chip 22 and blue LED chip 23 of the LED chip group 2 are accurate, so that the LED lamp bead packaging module A has a good display effect and has the effects of energy saving and reducing heat. The storage module 33 of the LED lamp bead packaging module A also stores the module identification number of the LED lamp bead packaging module A, and the module identification number is the independent identity information of the LED lamp bead packaging module A.

[0045] In the present invention, the driver chip 3 of the LED lamp bead packaging module A is also integrated with three chip identification modules 36, and the three chip identification modules 36 correspond to the three constant current driving modules 35 respectively. The input end and the ground end of each chip identification module 36 are respectively connected to the power supply end and the ground end of the constant current driving module 35 corresponding to the chip identification module 36, and the output ends of the three chip identification modules 36 are connected to the control module 31; and the LED chip group 2 adopts a common cathode structure, wherein the anodes of the red light LED chip 21, the green light LED chip 22 and the blue light LED chip 23 of each LED chip group 2 are respectively connected to the anode of the driver chip 3. The output ends of the three constant current driving modules 35 are connected, and the cathodes of the red LED chips 21, the green LED chips 22 and the blue LED chips 23 of each LED chip group 2 are connected to the GND pin of the driving chip 3 and grounded; and the anodes of the red LED chips 21 of each LED chip group 2 are respectively connected to different output ends of the same constant current driving module 35, the anodes of the green LED chips 22 of each LED chip group 2 are respectively connected to different output ends of the same constant current driving module 35, and the anodes of the blue LED chips 23 of each LED chip group 2 are respectively connected to different output ends of the same constant current driving module 35. The control module 31 of the LED lamp bead packaging module A detects the type of LED chips connected to the three constant current drive modules 35 through three chip identification modules 36, that is, detects which of the red LED chip 21, the green LED chip 22 and the blue LED chip 23 is connected to the output end of the constant current drive module 35, and the control module 31 adjusts the output current of the three constant current drive modules 35 according to the detection result and the current configuration parameters stored in the storage module 33; in this way, when the LED chip groups 2 with different structural settings are set on the LED lamp bead packaging module A, it is only necessary to control the connection relationship between each LED chip group 2 and the driver chip 3 to meet: "The red LED chip 21, the green LED chip 22 and the blue LED chip 23 of each LED chip group 2 are respectively connected to the three constant current drivers The output ends of the module 35 are connected, and the red LED chips 21 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35, the green LED chips 22 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35, and the blue LED chips 23 of each LED chip group 2 are respectively connected to different output ends of the same constant current drive module 35”, without requiring the red LED chips 21, green LED chips 22 and blue LED chips 23 of each LED chip group 2 to be accurately connected to a specific constant current drive module 35, so that the wiring of the LED lamp bead packaging module A is more flexible, and the driver chip 3 can also automatically match the LED chip groups 2 with different structural settings, so that the LED lamp bead packaging module A is more flexible and convenient to use.

[0046] In the present invention, the chip identification module 36 of the driving chip 3 of the LED lamp bead packaging module A specifically includes a voltage sampling circuit 361, a subtractor circuit 362 and a threshold signal generating circuit 363; the input end and the ground end of the voltage sampling circuit 361 are respectively connected to the input end and the ground end of the chip identification module 36, the output end of the voltage sampling circuit 361 is connected to the first input end of the subtractor circuit 362, the output end of the threshold signal generating circuit 363 is connected to the second input end of the subtractor circuit 362, and the output end of the subtractor circuit 362 is connected to the output end of the chip identification module 36; wherein the voltage sampling circuit 361 may include a first sampling resistor 3611 and a second sampling resistor 3612. The working principle of the chip identification module 36 is as follows: when the LED lamp bead packaging module A is used for the first time, the same voltage is connected to the power supply ends of the three constant current driving modules 35 and the three constant current driving modules output the same current. Since the red light LED chip 21, the green light LED chip 22 and the blue light LED chip 23 of the LED chip group 2 have different conduction voltage drops, the voltage drops of the three constant current driving modules 35 are different. The voltage sampling circuit 361 of each chip identification module 36 collects the voltage drop of the constant current driving module 35 corresponding to the chip identification module 36, and subtracts the collected voltage drop of the constant current driving module 35 from the voltage output by the threshold signal generating circuit 363 through the subtractor circuit 362, and finally outputs the calculation result to the control module 31; because the voltage drops of the three constant current driving modules 35 are different, the calculation results of the three chip identification modules 36 will also be different. The control module 31 compares the calculation results of the three chip identification modules 36 to determine the type of LED chips connected to the output ends of the three constant current driving modules 35. The configuration of the subtractor circuit 362 can prevent the voltage input to the control module 31 from being too large and causing damage to the control module 31 .

[0047] In the present invention, the driver chip 3 of the LED lamp bead packaging module A also integrates three voltage regulation modules 37 connected to the control module 31, and the output ends of the three voltage regulation modules 37 are respectively connected to the power supply ends of the three constant current driving modules 35. The three voltage regulation modules 37 are used to control the power supply end voltage of the three constant current driving modules 35. When the LED lamp bead packaging module A of the present invention is used for the first time, the control module 31 first controls the power supply terminal voltages of the three constant current driving modules 35 of the driving chip 3 to be the same through the three voltage regulating modules 37 of the driving chip 3; then, the control module 31 detects the types of LED chips connected to the three constant current driving modules 35 through the three chip identification modules 36; then, the control module 31 adjusts the output currents of the three constant current driving modules 35 according to the detection results and the current configuration parameters stored in the storage module 33 to ensure the luminous consistency and luminous color accuracy of each LED chip group 2 of the LED lamp bead packaging module A; at the same time, the control module 31 also controls the three voltage regulating modules 37 according to the detection results to adjust the power supply terminal voltages of the three constant current driving modules 35, so that the voltage drop of the three constant current driving modules 35 will not be too high, thereby reducing the power consumption and heat generation of the driving chip 3.

[0048] In the present invention, the voltage regulating module 37 of the driving chip 3 of the LED lamp bead packaging module A includes a PWM power driving circuit 371 and a voltage stabilizing circuit 372 connected to the output end of the PWM power driving circuit 371, the PWM power driving circuit 371 may include a first power MOS tube 3711, a second power MOS tube 3712 and a power resistor 3713, and the voltage stabilizing circuit 372 may include a voltage stabilizing inductor 3721, a voltage stabilizing capacitor 3722 and a voltage stabilizing tube 3723; the PWM power driving circuit 371 of each voltage regulating module 37 is connected to the control module 31, the control module 31 controls the on and off of the first power MOS tube 3711 and the second power MOS tube 3712, and the output end of the voltage stabilizing circuit 372 of each voltage regulating module 37 is connected to the output end of the voltage regulating module 37. The voltage stabilizing circuit 372 converts the pulse signal output by the PWM power driving circuit 371 into a DC signal to supply power to the power supply end of the constant current driving module 35, and the control module 31 controls the frequency and duty cycle of the pulse signal output by the PWM power driving circuit 371 by controlling the switching frequency and switching time of the PWM power driving circuit 371, thereby adjusting the voltage supplied to the power supply end of the constant current driving module 35 and controlling the voltage at the power supply end of the constant current driving module 35.

[0049] In the present invention, the PWM power driving circuit 371 of each voltage regulating module 37 of the driving chip 3 of the LED lamp bead packaging module A is also connected to the control module 31 through the current limiting comparator 38. The current limiting comparator 38 is used to detect whether the working current of the PWM power driving circuit 371 exceeds the set threshold value, and feeds back the corresponding detection result to the control module 31. The control module 31 controls the PWM power driving circuit 371 according to the detection result, so as to prevent the working current of the PWM power driving circuit 371 from being too large and causing damage to the PWM power driving circuit 371.

[0050] In the present invention, the driver chip 3 of the LED lamp bead packaging module A is also integrated with a temperature detection module 39 connected to the control module 31. The control module 31 detects the temperature of the driver chip 3 itself through the temperature detection module 39; when the temperature of the driver chip 3 itself is too high, the control module 31 controls the output voltage of each voltage regulation module 37 to reduce, thereby reducing the temperature of the driver chip 3 and reducing the risk of overheating and damage of the driver chip 3.

[0051] In the present invention, the driver chip 3 of the LED lamp bead packaging module A can lead out a VCC pin, a GND pin, an SDIOA pin, an SDIOB pin, a CLK pin, multiple OUT1 pins, multiple OUT2 pins and multiple OUT3 pins, wherein the VCC pin is used to access the power supply to power the internal module of the driver chip 3, the GND pin is used for grounding, the SDIOA pin is used to access or output the serial data signal, the SDIOB pin is used to access or output the serial data signal, the CLK pin is used to access the clock signal, the communication module 32 is connected to the SDIOA pin, the SDIOB pin and the CLK pin, each OUT1 pin is used for the first constant current drive module 35 among the three constant current drive modules 35 to output current, each OUT2 pin is used for the second constant current drive module 35 among the three constant current drive modules 35 to output current, and each OUT3 pin is used for the third constant current drive module 35 among the three constant current drive modules 35 to output current.

[0052] In the present invention, the LED lamp bead packaging module A may also include a packaging layer (not shown) covering each LED chip group 2. The packaging layer can prevent the LED chip group 2 from shifting and protect the LED chip group 2. The packaging layer adopts a light-transmitting structure, and the packaging layer can specifically adopt a light-guiding glue.

[0053] Cooperate Figure 7As shown, the LED lamp bead packaging modules A of the display module B2 are cascaded, wherein the SDIOB pin of the first LED lamp bead packaging module A is connected to the SDIOA pin of the second LED lamp bead packaging module A, the SDIOB pin of the second LED lamp bead packaging module A is connected to the SDIOA pin of the third LED lamp bead packaging module A, and so on, the SDIOB pin of the last LED lamp bead packaging module A is connected to the receiving card B1, the receiving card B1 is connected to the SDIOA pin of the first LED lamp bead packaging module A, the receiving card B1 is connected to the SDIOB pin of the last LED lamp bead packaging module A, and the receiving card B1 is also connected to the CLK pins of each LED lamp bead packaging module A. In the present invention, the receiving card B1 communicates with each LED lamp bead packaging module A, and the receiving card B1 can read the data stored in the storage module 33 of each LED lamp bead packaging module A, and the receiving card B1 can also write data to the storage module 33 of each LED lamp bead packaging module A; wherein, the data transmission mode of each LED lamp bead packaging module A of the display module B2 is SDIOA→SDIOB, and the receiving card B1 sends commands to each LED lamp bead packaging module A of the display module B2; and when the data transmission mode of each LED lamp bead packaging module A of the display module B2 becomes SDIOB→SDIOA, the receiving card B1 receives the information sent by each LED lamp bead packaging module A of the display module B2. In the present invention, when a static LED display screen replaces a certain LED lamp bead packaging module A after leaving the factory, the receiving card B1 can read the current configuration parameters stored in the storage module 33 of the LED lamp bead packaging module A that has not been replaced, and then the receiving card B1 writes the current configuration parameters into the storage module 33 of the replaced LED lamp bead packaging module A, thereby realizing automatic setting of the current configuration parameters stored in the storage module 33 after the replaced LED lamp bead packaging module A, and facilitating the replacement of the LED lamp bead packaging module A; in addition, when the display screen leaves the factory, the user can write the required current configuration parameters to the storage module 33 of the LED lamp bead packaging module A through the receiving card B1, so that the user can flexibly configure the luminous effect of the LED lamp bead packaging module A.

[0054] The static LED display installation and debugging method of the present invention comprises a static LED display to be debugged, installation and debugging software, a cloud server and a photographic device; wherein a control terminal C is connected to the cloud server via the Internet, and the control terminal C is further configured to import and identify photos taken by the photographic device; the cloud server stores all module identification numbers and driver programs corresponding to the module identification numbers; the photographic device is used to shoot and output the display screen of the static LED display; and Figure 8 As shown, the installation and debugging method includes the following steps:

[0055] Step 1: Install and debug the static LED display screen through the control terminal C by installing and debugging the software, so that the sending card C1 of the control terminal C sends a module identification number collection instruction to the receiving card B1 of each box B of the static LED display screen;

[0056] Step 2, after the receiving card B1 of each box B receives the module identification number collection instruction, the receiving card B1 of each box communicates with the driver chip 3 of all LED lamp bead packaging modules A of the box B, so that the driver chip 3 of all LED lamp bead packaging modules A of the box B first sends the module identification number stored in the storage module 33 of the driver chip 3 to the receiving card B1 of the box B, and then the receiving card B1 sends it to the control terminal C via the sending card C1, so that the control terminal C obtains the module identification number of each LED lamp bead packaging module A of each box B;

[0057] Step 3: Control terminal C to upload all module identification numbers it has obtained to the cloud server and send a command to retrieve the module driver program;

[0058] Step 4: The cloud server searches for the corresponding module driver according to the received module identification number, and sends the driver corresponding to the received module identification number to the control terminal C in a manner corresponding to the module identification number;

[0059] Step 5: After receiving all module drivers, the control terminal C distributes the module identification number and the corresponding module driver to the receiving card B1 of the corresponding cabinet B through the sending card C1 according to the cabinet B corresponding to the module identification number;

[0060] Step 6, the receiving card B1 of each box B absorbs the corresponding module driver into the storage module 33 of the driver chip 3 of the LED lamp bead packaging module A corresponding to the module identification number according to the module identification number;

[0061] Step 7: The sending card C1 of the control terminal C sends a differentiated lighting instruction to the receiving card B1 of each cabinet B, and stores the visual content that should be displayed when each cabinet B is differentially lit; when each cabinet B is differentially lit, the visual content displayed by each cabinet B is different;

[0062] Step 8, after receiving the differentiated lighting instruction, the receiving card B1 drives the corresponding LED lamp bead packaging module A to light up through the module driver written in the driver chip 3 of each LED lamp bead packaging module A of each display module B2, so that the cabinet B displays the visual content required to be displayed by the differentiated lighting instruction;

[0063] Step 9: The photographic device captures the display screen of the static LED display screen, and the photos captured by the photographic device are imported into the control terminal C;

[0064] Step 10: The control terminal C identifies the photo taken by the photographic device, locates the position of each visual content in the display screen of the static LED display screen, and then determines and records the position of each box B on the static LED display screen.

[0065] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. Static LED display installation and debugging method, characterized by: Including static LED display screen to be debugged, installation and debugging software, cloud server and photography equipment; The static LED display screen to be debugged includes a control terminal and a plurality of spliced ​​boxes; the box has a receiving card and a plurality of display modules connected to the receiving card; each display module includes a display circuit board and a plurality of LED lamp bead packaging modules, and each LED lamp bead packaging module is arranged in an array on the display circuit board; the LED lamp bead packaging module includes a packaging substrate and an LED chip group and a driver chip packaged on the packaging substrate; the driver chip integrates a control module, a communication module, a storage module, a current configuration module and three constant current drive modules, the control module is connected to the communication module and the storage module respectively, the control module is connected to the three constant current drive modules respectively, and the control module is also connected to the three constant current drive modules respectively through the current configuration module; the number of the LED chip groups is multiple and each LED chip group is arranged in an array On the same side of the packaging substrate, each LED chip group includes a red LED chip, a green LED chip and a blue LED chip; the red LED chip, the green LED chip and the blue LED chip of each LED chip group are respectively connected to the output ends of the three constant current drive modules of the driver chip; and the red LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, the green LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, and the blue LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module; the driver chip of the LED lamp bead packaging module of each display module of each box is connected to the receiving card of the box, and the storage module of the LED lamp bead packaging module stores the module identification number of the LED lamp bead packaging module; The control terminal is provided with a sending card, and the control terminal communicates with the receiving cards of each box through the sending card to implement control; the control terminal is connected to the cloud server through the Internet, and the control terminal is also configured to import and identify the photos taken by the photographic equipment; The cloud server stores all module identification numbers and drivers corresponding to the module identification numbers; The photographic device is used to photograph and output the display screen of the static LED display screen; The static LED display installation and debugging method comprises the following steps: Step 1: Install and debug the static LED display screen through the control terminal of the installation and debugging software, so that the sending card of the control terminal sends a module identification number collection instruction to the receiving card of each box of the static LED display screen; Step 2: After the receiving card of each box receives the module identification number collection instruction, the receiving card of each box communicates with the driver chips of all the LED lamp bead packaging modules of the box, so that the driver chips of all the LED lamp bead packaging modules of the box first send the module identification number stored in the storage module of the driver chip to the receiving card of the box, and then the receiving card sends it to the control terminal via the sending card, so that the control terminal obtains the module identification number of each LED lamp bead packaging module of each box; Step 3: The control terminal uploads all module identification numbers it has obtained to the cloud server and sends a command to retrieve the module driver program; Step 4: The cloud server searches for the corresponding module driver according to the received module identification number, and sends the driver corresponding to the received module identification number to the control terminal in a manner corresponding to the module identification number; Step 5: After receiving all module drivers, the control terminal distributes the module identification number and the corresponding module driver to the receiving card of the corresponding cabinet through the sending card according to the cabinet corresponding to the module identification number; Step 6, the receiving card of each box absorbs the corresponding module driver into the storage module of the driver chip of the LED lamp bead packaging module corresponding to the module identification number according to the module identification number; Step 7: The sending card of the control terminal sends a differentiated lighting instruction to the receiving card of each cabinet, and stores the visual content that should be displayed when each cabinet is differentially lit; when each cabinet is differentially lit, the visual content displayed by each cabinet is different; Step 8: After receiving the differentiated lighting instruction, the receiving card of each cabinet drives the corresponding LED lamp bead packaging module to light up through the module driver written in the driver chip of each LED lamp bead packaging module of each display module, so that the cabinet displays the visual content required to be displayed by the differentiated lighting instruction; Step 9: The photographic device captures the display screen of the static LED display screen, and the photos captured by the photographic device are imported into the control terminal; Step 10: The control terminal identifies the photo taken by the photographic device, locates the position of each visual content in the display screen of the static LED display screen, and then determines and records the position of each cabinet on the static LED display screen.

2. The static LED display installation and debugging method according to claim 1, characterized in that: The driver chip is also integrated with three chip identification modules, which correspond to the three constant current drive modules respectively, and the input end and the ground end of each chip identification module are respectively connected to the power supply end and the ground end of the constant current drive module corresponding to the chip identification module, and the output ends of the three chip identification modules are connected to the control module; The anodes of the red LED chips, green LED chips and blue LED chips of each LED chip group are respectively connected to the output ends of the three constant current drive modules, and the cathodes of the red LED chips, green LED chips and blue LED chips of each LED chip group are grounded; and the anodes of the red LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, the anodes of the green LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module, and the anodes of the blue LED chips of each LED chip group are respectively connected to different output ends of the same constant current drive module.

3. The static LED display installation and debugging method according to claim 2, characterized in that: The chip identification module comprises a voltage sampling circuit, a subtractor circuit, and a threshold signal generating circuit; the input end and the ground end of the voltage sampling circuit are respectively connected to the input end and the ground end of the chip identification module, the output end of the voltage sampling circuit is connected to the first input end of the subtractor circuit, the output end of the threshold signal generating circuit is connected to the second input end of the subtractor circuit, and the output end of the subtractor circuit is connected to the output end of the chip identification module.

4. The static LED display installation and debugging method according to claim 2, characterized in that: The driver chip also integrates three voltage regulating modules connected to the control module, and the output ends of the three voltage regulating modules are respectively connected to the power supply ends of the three constant current driving modules.

5. The static LED display installation and debugging method according to claim 4, characterized in that: The voltage regulating module includes a PWM power driving circuit and a voltage stabilizing circuit connected to the output end of the PWM power driving circuit; the PWM power driving circuit of each voltage regulating module is connected to the control module, and the output end of the voltage stabilizing circuit of each voltage regulating module is connected to the output end of the voltage regulating module; The PWM power driving circuit of each voltage regulating module is also connected to the control module through a current limiting comparator.

6. The static LED display installation and debugging method according to claim 1, characterized in that: The LED lamp bead packaging module also includes a packaging layer covering each LED chip group.

7. The static LED display installation and debugging method according to any one of claims 1 to 6, characterized in that: The packaging substrate is one of a glass substrate, a PCB board, a ceramic substrate or an FPC board.

8. The static LED display installation and debugging method according to claim 1, characterized in that: The LED lamp bead packaging modules of the display module are cascaded, wherein the SDIOB pin of the first LED lamp bead packaging module is connected to the SDIOA pin of the second LED lamp bead packaging module, the SDIOB pin of the second LED lamp bead packaging module is connected to the SDIOA pin of the third LED lamp bead packaging module, and so on, the SDIOB pin of the second-to-last LED lamp bead packaging module is connected to the SDIOA pin of the first-to-last LED lamp bead packaging module; and the receiving card is respectively connected to the SDIOA pin of the first LED lamp bead packaging module and the SDIOB pin of the first-to-last LED lamp bead packaging module, and the receiving card is also connected to the CLK pins of each LED lamp bead packaging module.

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