WO2022204926A1

WO2022204926A1 - Led display screen protection method and apparatus, and computer storage medium

Info

Publication number: WO2022204926A1
Application number: PCT/CN2021/083878
Authority: WO
Inventors: 陈善威
Original assignee: 深圳市艾比森光电股份有限公司
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-10-06

Abstract

Disclosed are an LED display screen protection method and apparatus, and a computer storage medium. The LED display screen protection method comprises: acquiring a working condition parameter of an LED display screen, wherein the working condition parameter comprises a parameter that represents a working environment or working state of the LED display screen (S1); and when the working condition parameter is greater than a set parameter, sending a turning-off instruction, wherein the turning-off instruction is used for instructing a control switch of the LED display screen to be switched off (S2). Upon a working condition parameter of an LED display screen being abnormal, a turning-off instruction can be quickly sent, such that a control switch is switched off, thereby preventing a problem occurring in the LED display screen, and improving the safety coefficient.

Description

A kind of LED display screen protection method, device and computer storage medium

technical field

The present application relates to the field of display technology, and in particular, to a method and device for protecting an LED display screen, and a computer storage medium.

Background technique

Light emitting diode (LED) display has the advantages of wide color gamut, high brightness, large viewing angle, low power consumption and long life, so in the field of display, LED display is widely used. For example, the more common securities trading and financial information display, airport flight dynamic information display, port and station passenger guidance information display, stadium information display, concert stage, road traffic information display, power dispatching and vehicle dynamic tracking and other dispatching command center information Display, business promotion information display and advertising media products in service areas such as shopping malls and shopping malls.

The core component of the LED display is composed of three colors of red, green, blue, RGB LED lamp beads to form a single pixel, and then hundreds of pixels are used to form a large LED display. When image display is required, the LED display screen can be driven by the image signal conversion control unit and the data processing system, so that the LED display screen can present colorful images.

When displaying images, the LED display inevitably consumes power, and the LED lamp bead is the main power-consuming component of the LED display. Its power can range from tens of watts to hundreds of watts, and the corresponding current can be from ten A few amps to twenty amps. And as the display area of the LED display screen increases, its corresponding power and current increase accordingly.

It can be seen from the above that the current used by the general LED display is relatively high. The high current will cause the local temperature in the LED display to be too high, which will accelerate the aging of the line insulation layer, which may lead to a short circuit, and then fire and other safety accidents.

In view of the fact that the above-mentioned LED display application scenarios are mostly crowded places such as stations, shopping malls, airports, etc., once a safety accident such as a fire occurs, the property and personal injury will be innumerable. Therefore, with the widespread use of LED displays, higher requirements are placed on the safety performance of LED displays.

SUMMARY OF THE INVENTION

The purpose of this application is to provide an LED display screen protection method, device and computer storage medium.

A first aspect of the present application provides a method for protecting an LED display screen, comprising: acquiring operating condition parameters of the LED display screen; the operating condition parameters include parameters used to characterize the working environment or working state of the LED display screen; When the working condition parameter is greater than the set parameter, a shutdown command is sent; the shutdown command is used to instruct the control switch of the LED display screen to be turned off.

In an embodiment, the working condition parameter includes at least one of a temperature signal, a humidity signal and a current signal; the temperature signal is used to represent the heating condition of the LED display screen when it is in a working state, and the humidity signal It is used to characterize the humidity of the external environment where the LED display screen is located, and the current signal is used to characterize the current situation when the LED display screen is in a working state.

In one embodiment, after the shutdown command is sent, the LED display protection method further includes: acquiring working condition parameters of the LED display after the execution of the shutdown command; when the working condition parameters are less than or equal to In the case of setting parameters, an opening command is sent; the opening command is used to instruct the control switch of the LED display screen to close.

In one embodiment, after the working condition parameter is greater than the set parameter, the LED display screen protection method further includes: sending a display instruction; the display instruction is used to instruct the monitoring display device to display the display the operating parameters.

In an embodiment, after the working condition parameter is greater than the set parameter, the LED display screen protection method further includes: sending an alarm instruction; the alarm instruction is used to instruct an alarm to issue an alarm.

A second aspect of the present application provides an LED display screen protection device, the LED display screen has a power supply circuit, and the LED display screen protection device includes: a central processing unit, a working condition detection module and a control switch; the working condition detection module and all The control switches are respectively electrically connected with the central processing unit; the control switches are connected in series with the input end of the power supply circuit; the working condition detection module is used for: detecting working condition parameters of the LED display screen; the working condition parameters Including parameters used to characterize the working environment or working state of the LED display screen; the central processing unit is used to: obtain the working condition parameters detected by the working condition detection module; In the case of the parameter, send a shutdown instruction to the control switch; the control switch is used to: disconnect after receiving the shutdown instruction.

In an embodiment, the working condition parameter includes at least one of a temperature signal, a humidity signal and a current signal; the temperature signal is used to represent the heating condition of the LED display screen when it is in a working state, and the humidity signal It is used to characterize the humidity of the external environment where the LED display screen is located, and the current signal is used to characterize the current situation when the LED display screen is in a working state; the working condition detection module includes: a temperature sensor, a humidity sensor and a current a sampling unit; the temperature sensor, the humidity sensor and the current sampling unit are respectively electrically connected to the central processing unit; the temperature sensor is used to detect the temperature signal, and the humidity sensor is used to detect the humidity signal, the current sampling unit is used to detect the current signal.

In an embodiment, after the central processing unit sends the shutdown instruction, it is further used to: obtain the operating condition parameters of the LED display screen after the execution of the shutdown instruction; In the case of setting parameters, send an opening command; the control switch is also used for: closing after receiving the opening command.

In one embodiment, the LED display screen protection device further includes: a monitoring and display device; the monitoring and display device is electrically connected to the central processing unit; the central processing unit is configured to determine that the operating condition parameter is greater than a set value. After setting the parameters, it is further used for: sending a display instruction to the monitoring and display device; and the monitoring and display device is used for: after receiving the display instruction, displaying the working condition parameters.

In one embodiment, the LED display screen protection device further comprises: an alarm device; the alarm device is electrically connected to the central processing unit; the central processing unit is used to determine that the working condition parameter is greater than a set parameter Afterwards, it is also used for: sending an alarm instruction to the alarm; and the alarm is used for: sending an alarm signal after receiving the alarm instruction.

In one embodiment, the control switch includes a normally open relay.

A third aspect of the present application provides a computer storage medium on which computer program instructions are stored; when the computer program instructions are executed by a processor, the LED display according to any one of the first aspect of the present application is implemented Screen protection method.

In the LED display protection method provided by the embodiments of the present application, when the working condition parameters of the LED display are abnormal, a shutdown command can be quickly sent, so that the control switch is disconnected, thereby avoiding accidents on the LED display and improving the safety factor.

Description of drawings

In order to illustrate the technical solutions of the present application more clearly, the following briefly introduces the accompanying drawings that are required in the implementation manner.

1 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

2 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

3 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

4 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

5 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

6 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

7 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application;

8 is a structural block diagram of an LED display screen protection device provided by an embodiment of the present application;

9 is a structural block diagram of an LED display screen protection device provided by an embodiment of the present application;

FIG. 10 is a structural block diagram of an LED display screen protection device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

Please refer to FIG. 1. FIG. 1 is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application; an embodiment of the present application provides a method for protecting an LED display screen, including:

S1: Acquire working condition parameters of the LED display screen; the working condition parameters include parameters used to characterize the working environment or working state of the LED display screen.

S2: When the working condition parameter is greater than the set parameter, send a shutdown command; the shutdown command is used to instruct the control switch of the LED display screen to be turned off.

The specific execution process of step S2 is as follows: comparing the working condition parameter and the setting parameter, and if it is determined that the working condition parameter is greater than the setting parameter, a shutdown instruction is sent. The shutdown command is specifically sent to the control switch of the LED display screen, and the control switch can be turned off after receiving the shutdown command, so that the LED display screen can be turned off before the LED display screen has an accident, so as to prevent serious accidents and increase the The safety performance of the LED display.

It can be seen from the above that the protection method for the LED display screen provided by this embodiment can quickly send a shutdown command after the working condition parameters of the LED display screen are abnormal, so that the control switch is disconnected, thereby avoiding accidents on the LED display screen and improving the performance of the LED display screen. Safety factor.

Specifically, the working condition parameter includes at least one of a temperature signal, a humidity signal, and a current signal. The temperature signal is used to characterize the heating condition of the LED display screen when it is in a working state, the humidity signal is used to characterize the humidity of the external environment where the LED display screen is located, and the current signal is used to characterize the LED display screen. Current situation when the screen is in working state. Because the temperature of the LED display itself is too high, or the ambient humidity is too high, or its own current exceeds the normal current, it may cause the LED display to overheat and catch fire. Therefore, the temperature signal, humidity signal and current signal are used to characterize the LED. The working conditions of the display screen can better evaluate the safety factor of the LED display screen, and according to the evaluation results, that is, the comparison results of the above-mentioned working conditions parameters and the corresponding setting parameters, can better occur in the LED display screen. Before the accident, disconnect the power supply of the LED display. Thereby, the heating of the LED display screen is prevented from being more serious, and the risk of accidents in the LED display screen is reduced.

That is, the working condition parameters include at least one of the temperature signal, the humidity signal and the current signal. As long as it is determined that any one of the temperature signal, the humidity signal and the current signal is abnormal, a shutdown command can be sent to the control switch, so as to provide multi-directional protection. LED display, reduce the accident risk of LED display.

The above-mentioned set parameters may specifically include a set temperature threshold corresponding to the temperature signal, a set humidity threshold corresponding to the humidity signal, and a set current threshold corresponding to the current signal. Those skilled in the art can understand that, for different types of LED display screens, the specific data or specific ranges of the set parameters are different, and the display area of the LED display screen is large, the corresponding set current threshold and The set temperature threshold will be higher.

For example, for a certain type of LED display, the set current threshold is 6.2A, the set temperature threshold is +50°C, and the set humidity threshold is 90%. Then, when it is determined that the current signal is greater than 6.2A, or that the temperature signal is greater than 50°C, or that the humidity signal is greater than 90%, a shutdown command is sent to the control switch.

Another example is a certain type of LED display screen, the set current threshold is 8.3A, the set temperature threshold is +40°C, and the set humidity threshold is 80%. Then, when it is judged that the current signal is greater than 8.3A, or that the temperature signal is greater than 40°C, or that the humidity signal is greater than 80%, a shutdown command is sent to the control switch.

The following takes the temperature signal as an example to describe a specific implementation in detail, please refer to FIG. 2 , which is a flowchart of a protection method for an LED display screen provided by an embodiment of the present application:

S1: Obtain the temperature signal of the LED display.

S2: Compare the temperature signal with the set temperature threshold, and send a shutdown command when the temperature signal is greater than the set temperature threshold. The turn-off command is specifically sent to the control switch, and the control switch turns off after receiving the turn-off command.

It can be seen that the temperature signal is greater than the set temperature threshold, that is, it is judged that the working condition of the LED display is abnormal, and then the control switch is directly disconnected, so as to disconnect the power supply circuit of the LED display and avoid accidents on the LED display.

The following takes temperature signal and current signal as examples to describe a specific implementation in detail, please refer to FIG. 3 , which is a flowchart of a protection method for an LED display screen provided by an embodiment of the present application:

S1: Obtain the temperature signal and current signal of the LED display.

S2: Compare the temperature signal with the set temperature threshold, compare the current signal with the set current threshold; when the temperature signal is greater than the set temperature threshold, or the current signal is greater than the set current threshold, a shutdown command is sent. The turn-off command is specifically sent to the control switch, and the control switch turns off after receiving the turn-off command.

It can be seen that the temperature signal is greater than the set temperature threshold, or the current signal is greater than the set current threshold, that is, it is judged that the working condition of the LED display is abnormal, and then the control switch is directly disconnected, so as to disconnect the power supply circuit of the LED display to avoid The LED display has an accident. If any one of the two working condition parameters is abnormal, the LED display will be judged to be abnormal, which can increase the accuracy of the judgment and reduce the risk of accidents on the LED display.

The following takes temperature signal, current signal and humidity signal as examples to describe a specific implementation in detail, please refer to FIG. 4 , which is a flowchart of a protection method for an LED display screen provided by an embodiment of the present application:

S1: Obtain the temperature signal, current signal and humidity signal of the LED display.

S2: Compare the temperature signal with the set temperature threshold, compare the current signal with the set current threshold, and compare the humidity signal with the set humidity threshold; when the temperature signal is greater than the set temperature threshold, or the current signal is greater than the set current threshold, or the humidity signal If it is greater than the set humidity threshold, a shutdown command will be sent. The turn-off command is specifically sent to the control switch, and the control switch turns off after receiving the turn-off command.

It can be seen that the temperature signal is greater than the set temperature threshold, or the current signal is greater than the set current threshold, or the humidity signal is greater than the set humidity threshold, that is, it is judged that the working condition of the LED display is abnormal, and then the control switch is directly turned off, so that the LED The power supply circuit of the display screen is disconnected to avoid accidents on the LED display screen. If any one of the three working condition parameters is abnormal, the LED display screen will be judged to be abnormal, so that the abnormal condition of the LED display screen can be judged more accurately, and the risk of accidents in the LED display screen can be reduced.

The following describes in detail a method for protecting an LED display screen provided in another manner. Please refer to FIG. 5 , which is a flowchart of a method for protecting an LED display screen provided by an embodiment of the present application. The method includes:

S2: Whether the working condition parameter is greater than the set parameter, if yes, go to step S3; if no, go back to step S1.

S3: Send a shutdown command; the shutdown command is used to instruct the control switch of the LED display screen to be turned off.

S4: Obtain the working condition parameters of the LED display screen after the shutdown command is executed.

S5: Whether the working condition parameter is less than or equal to the set parameter, if yes, go to step S6; if no, go back to step S4.

S6: Send an opening command. The opening instruction is used to instruct the control switch of the LED display screen to close.

In this embodiment, steps S1 to S3 are the same as those in the above-mentioned embodiment, and are not repeated here. The difference lies in steps S4 to S6.

In the case of performing steps S4 and S6, the LED display screen can be powered on as soon as possible after troubleshooting. That is, after the fault is eliminated, in order to make the LED display return to normal operation as soon as possible, the working condition parameters can be re-acquired, and the working condition parameters and the set parameters can be re-compared. If the working condition parameters are less than or equal to the set parameters at this time, then It proves that the fault has been eliminated. At this time, an opening command can be sent to the control switch, and the control switch can be closed after receiving the opening command. If the working condition parameters are still greater than the set parameters at this time, it proves that the fault has not been eliminated, and the working conditions parameters of the LED display screen are continuously obtained, so that the LED display screen can be powered on quickly after the fault is eliminated. As a result, the power supply of the LED display screen can be quickly restored to work normally, and the time when the LED display screen is powered off is reduced. The following describes the protection method of an LED display screen provided by another embodiment in detail. Please refer to FIG. 6. FIG. 6 is a flowchart of a protection method for an LED display screen provided by an embodiment of the present application. The method specifically includes:

S4: Send a display command. The display instruction is used to instruct the monitoring display device to display the working condition parameter.

In this embodiment, steps S1 to S3 are the same as those in the above-mentioned embodiment, and are not repeated here, and the difference lies in step S4. The display instruction in S4 is used to instruct the display monitoring device to display the working condition parameters, so that the operator can discover the abnormal situation of the LED display screen as soon as possible. That is, after judging that the working condition parameter is greater than the set parameter, a display instruction can also be sent to the monitoring and display device. Of course, the display instruction includes an order for the monitoring and display device to display the working Displays the parameter data information of the working condition. After the monitoring display device receives the display instruction, it can display the working condition parameters, so that the operator can quickly discover the abnormal situation of the LED display screen, so as to respond in time and reduce the risk of accidents in the LED display screen.

The following describes in detail the protection method for an LED display screen provided by another embodiment. Please refer to FIG. 7. FIG. 7 is a flowchart of a protection method for an LED display screen provided by an embodiment of the present application. The method is as follows:

S4: Send an alarm command. The alarm instruction is used to instruct the alarm to issue an alarm.

Steps S1 to S3 in this embodiment are the same as those in the above-mentioned embodiment, and the difference lies in step S4. The alarm instruction in S4 instructs the alarm to sound the alarm. That is, after it is judged that the operating condition parameter is greater than the set parameter, an alarm instruction may also be sent to the alarm device. The alarm will send out an alarm after receiving the alarm command. The alarm can alert the operator, so that the operator can discover the abnormal situation as soon as possible, so as to respond faster and avoid accidents on the LED display.

Embodiments of the present application also provide a protection device for an LED display screen. The LED display screen has a power supply circuit. Please refer to FIG. 8 . FIG. 8 is a structural block diagram of the protection device for an LED display screen provided by an embodiment of the present application. The LED display screen protection device includes a central processing unit 100, a working condition detection module 200 and a control switch 300;

Wherein, the working condition detection module 200 and the control switch 300 are respectively electrically connected with the central processing unit 100; the control switch 300 is connected in series with the input end of the power supply circuit.

Specifically, the working condition detection module 200 is used for: detecting working condition parameters of the LED display screen; the working condition parameters include parameters used to characterize the working environment or working state of the LED display screen. The central processing unit 100 is configured to: acquire the working condition parameter detected by the working condition detection module 200; in the case that the working condition parameter is determined to be greater than the set parameter, send a shutdown signal to the control switch 300 instruction. The control switch 300 is configured to turn off after receiving the turn-off instruction.

Using the working condition parameters of the working condition detection module 200, the central processing unit 100 then obtains the working condition parameters detected by the working condition detection module 200, and then compares the working condition parameters with the set parameters. If the working condition parameters are greater than the set parameters, it proves that The LED display screen is abnormal, and accidents such as fire may occur. At this time, the central processing unit 100 directly sends a shutdown command to the control switch 300, and the control switch 300 disconnects immediately after receiving the shutdown command, thereby making the power supply circuit of the LED display screen. Disconnect, the LED display goes out and stops working.

That is, in the LED display screen protection device provided by this embodiment, the central processing unit 100 directly obtains the working condition parameters detected by the working condition detection module 200, and after obtaining the working condition parameters, it can independently set the working condition parameters and settings. The parameters are compared to determine whether the working condition parameters are abnormal, and if the working condition parameters are abnormal, a shutdown command is directly sent to the control switch 300 . The response speed is very fast, the control switch 300 can be disconnected without going through the upper server or controller, etc., and the power supply circuit of the LED display can be cut off quickly, so that the LED display can stop working as soon as possible under abnormal conditions, so as to avoid the LED display. Major accidents such as fire occurred in the display screen, which improved the safety performance of the LED display screen.

Specifically, the working condition parameter includes at least one of a temperature signal, a humidity signal, and a current signal; the temperature signal is used to represent the heating condition of the LED display screen when it is in a working state, and the humidity signal is used to represent all the The humidity of the external environment where the LED display screen is located, and the current signal is used to represent the current situation when the LED display screen is in a working state.

Please refer to FIG. 9 , which is a structural block diagram of an LED display screen protection device provided by an embodiment of the present application. The working condition detection module 200 includes: a temperature sensor 210, a humidity sensor 220 and a current sampling unit 230; the temperature sensor 210, the humidity sensor 220 and the current sampling unit 230 are respectively electrically connected to the central processing unit. The temperature sensor 210 is used for detecting the temperature signal, the humidity sensor 220 is used for detecting the humidity signal, and the current sampling unit 230 is used for detecting the current signal.

The temperature sensor 210 can be arranged on the non-display surface of the LED display screen, or on the display box of the LED display screen, as long as the temperature of the LED display screen can be directly and conveniently detected. The temperature sensor 210 may specifically be of a thermocouple type, a thermistor type, a resistance type, etc., which is not specifically limited.

The humidity sensor 220 can be set on the non-display surface of the LED display screen, or on the display box of the LED display screen, or set near the LED display screen, so as to be able to detect the humidity signal of the environment where the LED display screen is located. allow. The humidity sensor 220 may be a lithium chloride humidity sensor 220, a carbon desensitized humidity sensor 220, an alumina humidity sensor 220, a ceramic humidity sensor 220, etc., which are not specifically limited.

In one embodiment, after the central processing unit 100 sends the shutdown command, it is further configured to acquire the operating condition parameters of the LED display screen after the shutdown command is executed. When the working condition parameter is less than or equal to the set parameter, an opening command is sent. The control switch 300 is further configured to be closed after receiving the opening instruction. Therefore, after the fault is eliminated, the central processing unit 100 detects that the operating parameters have returned to the normal range, so it can send an opening command to the control switch 300 to close the control switch 300, so that the LED display screen can resume normal operation as soon as possible.

Those skilled in the art can understand that although the power supply circuit of the LED display screen has been disconnected, the LED display screen protection device is a device that supplies power independently. The LED display protection device provides power. When the LED display screen is not powered off, the LED display screen also uses the power supply circuit of the LED display screen to supply power. When the control switch 300 of the LED display screen is turned off, the small-capacity power supply starts to supply power to the LED display screen protection device, so that the LED display screen protection device can continue to monitor the status of the LED display screen and improve the safety factor of the LED display screen. The small-capacity power supply may be a battery or other equipment. When the control switch 300 of the LED display screen is in a closed state, the power supply of the LED display screen can be used to charge the battery, so that the battery can be charged after the control switch 300 of the LED display screen is disconnected. Provide power for LED display protection device.

In one embodiment, the control switch 300 may be a normally open relay, and the normally open relay is selected as the control switch 300. After the fault is eliminated, when the control switch 300 is re-closed, the power-on delay function can be implemented to reduce the power-on momentary delay. Impulse current can not only eliminate the grid shock caused by the instantaneous inrush current, but also effectively avoid the tripping of the circuit breaker caused by the inrush current, thus creating a good power consumption environment.

Please refer to FIG. 10 , which is a structural block diagram of an LED display screen protection device provided by an embodiment of the present application. The LED display screen protection device further includes a monitoring and display device 400 ; the monitoring and display device 400 is electrically connected to the central processing unit 100 . The central processing unit 100 is further configured to send the display instruction to the monitoring and display device 400 after judging that the operating condition parameter is greater than the set parameter. The monitoring and display device 400 is configured to display the working condition parameters after receiving the display instruction.

The monitoring and display device 400 may specifically be a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, and a palmtop computer electrically connected to the central processing unit 100, and a fixed terminal such as a digital TV and a desktop computer. Any electronic device capable of receiving data and displaying data can be used as the above-mentioned monitoring display device 400 .

After the central processing unit 100 determines that the working condition parameter is greater than the set parameter, it immediately sends the working condition parameter to the monitoring display device 400, and the operator can see the working condition parameter on the monitoring display device 400, so as to quickly know the status of the LED display. Abnormal situation, it is convenient for operators to respond to the abnormal situation in time and reduce the risk of accidents in the LED display.

Please continue to refer to FIG. 10 , the LED display screen protection device further includes an alarm 500 ; the alarm 500 is electrically connected to the central processing unit 100 . The central processing unit 100 is configured to send an alarm instruction to the alarm device 500 after judging that the working condition parameter is greater than the set parameter. The alarm device 500 is configured to send out an alarm signal after receiving the alarm instruction. The alarm 500 may be a buzzer alarm or the like, which is not specifically limited.

When the central processing unit 100 determines that the working condition parameter is greater than the set parameter, it means that the working condition of the LED display screen is abnormal at this time, and then the central processing unit 100 can send an alarm command to the buzzer alarm, and the buzzer alarm 500 receives the alarm After the command, a buzzer and/or flashing lights, etc. are issued to remind the operator, so that the operator can discover the abnormal situation as soon as possible, so as to quickly respond to the abnormal situation.

Another embodiment of the present application also provides a computer storage medium, where computer program instructions are stored thereon; when the computer program instructions are executed by a processor, the LED display screen protection method provided by any embodiment of the present application is implemented .

The embodiments of the present application are described in detail above, and specific examples are used herein to illustrate the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application.

Claims

A method for protecting an LED display screen, comprising:

Obtain working condition parameters of the LED display screen; the working condition parameters include parameters used to characterize the working environment or working state of the LED display screen;

When the working condition parameter is greater than the set parameter, a shutdown command is sent; the shutdown command is used to instruct the control switch of the LED display screen to be turned off.
The method for protecting an LED display screen according to claim 1, wherein the working condition parameters include at least one of a temperature signal, a humidity signal and a current signal; the temperature signal is used to indicate that the LED display screen is working The heating condition in the state, the humidity signal is used to represent the humidity of the external environment where the LED display screen is located, and the current signal is used to represent the current condition of the LED display screen when the LED display screen is in a working state.
The method for protecting an LED display screen according to claim 1, wherein after sending a shutdown command, the method for protecting the LED display screen further comprises: acquiring a working condition of the LED display screen after the shutdown command is executed. parameter; when the working condition parameter is less than or equal to the set parameter, send an opening command; the opening command is used to instruct the control switch of the LED display screen to close.
The LED display screen protection method according to claim 1, characterized in that, after the working condition parameter is greater than the set parameter, the LED display screen protection method further comprises: sending a display instruction; the The display instruction is used to instruct the monitoring display device to display the working condition parameters.
The LED display screen protection method according to any one of claims 1 to 4, characterized in that, after the working condition parameter is greater than the set parameter, the LED display screen protection method further comprises: Send an alarm instruction; the alarm instruction is used to instruct the alarm to issue an alarm.
An LED display screen protection device, the LED display screen has a power supply circuit, characterized in that the LED display screen protection device comprises: a central processing unit, a working condition detection module and a control switch;

The working condition detection module and the control switch are respectively electrically connected to the central processing unit; the control switch is connected in series with the input end of the power supply circuit;

The working condition detection module is used for: detecting working condition parameters of the LED display screen; the working condition parameters include parameters used to characterize the working environment or working state of the LED display screen;

The central processing unit is used for: acquiring the working condition parameter detected by the working condition detection module; in the case of judging that the working condition parameter is greater than the set parameter, sending a shutdown instruction to the control switch;

The control switch is used for: turning off after receiving the turning off instruction.
The LED display screen protection device according to claim 6, wherein the working condition parameters include at least one of a temperature signal, a humidity signal and a current signal; the temperature signal is used to indicate that the LED display screen is working The heating situation in the state, the humidity signal is used to represent the humidity of the external environment where the LED display screen is located, and the current signal is used to represent the current situation of the LED display screen when it is in a working state;

The working condition detection module includes: a temperature sensor, a humidity sensor and a current sampling unit; the temperature sensor, the humidity sensor and the current sampling unit are respectively electrically connected to the central processing unit;

The temperature sensor is used to detect the temperature signal, the humidity sensor is used to detect the humidity signal, and the current sampling unit is used to detect the current signal.
The LED display screen protection device according to claim 6, characterized in that, after the central processing unit sends a shutdown instruction, it is further used for: acquiring the working condition parameters of the LED display screen after the execution of the shutdown instruction; When the working condition parameter is less than or equal to the set parameter, send an opening command;

The control switch is also used for: closing after receiving the opening instruction.
The LED display screen protection device according to claim 6, wherein the LED display screen protection device further comprises: a monitoring display device; the monitoring display device is electrically connected to the central processing unit;

After judging that the working condition parameter is greater than the set parameter, the central processing unit is further used to: send a display instruction to the monitoring and display device;

The monitoring and display device is used for: after receiving the display instruction, displaying the working condition parameter.
The LED display screen protection device according to claim 6, wherein the LED display screen protection device further comprises: an alarm; the alarm is electrically connected to the central processing unit;

After judging that the working condition parameter is greater than the set parameter, the central processing unit is further used to: send an alarm instruction to the alarm device;

The alarm is used for: sending out an alarm signal after receiving the alarm instruction.
The LED display screen protection device according to any one of claims 6 to 10, wherein the control switch comprises a normally open relay.
A computer storage medium, characterized in that, computer program instructions are stored on the computer storage medium; when the computer program instructions are executed by a processor, the LED display screen protection according to any one of claims 1 to 5 is realized method.