LED screen falling detection auxiliary device

Abstract

The utility model provides an LED screen drop detection auxiliary device. The LED screen drop detection auxiliary device comprises a main control unit, a drop detection unit electrically connected with the main control unit, and a communication unit in communication connection with the main control unit. The drop detection unit is used for acquiring drop detection data and transmitting the drop detection data to the main control unit; and the main control unit is used for transmitting the received drop detection data to the monitoring terminal through the communication unit. The falling detection data of the LED screen is detected through the falling detection unit, judgment is carried out through the main control unit, the data are transmitted to the monitoring terminal, real-time detection of the LED screen is achieved, and the LED screen falling detection device is simple in structure and suitable for falling detection of most LED screens.

Description

Technical Field

[0001] The utility model belongs to the technical field related to LED drop detection, and specifically relates to an LED screen drop detection auxiliary device. Background Art

[0002] The statements in this section merely provide background art related to the present disclosure and do not necessarily constitute prior art.

[0003] At present, there are few protective measures for LED screens, and some of the reinforcements are not reliable. LED screens on both sides of the road or in open squares are in a state where they are easily damaged by vehicle collisions or external forces such as strong winds. If the screen is damaged and tipped over but not discovered in time, it may easily cause an accident later, or the equipment may be undetected for a long time after it has fallen to the ground and dirt or rain has entered. Currently, most LED devices are only discovered to be in an abnormal offline state after power is turned off. It is very dangerous to be in an unknown state for a long time without power being turned off after tipping over, which can easily damage the equipment and cause secondary damage to the equipment, and there may also be danger to personnel. Most screens on the market do not have a drop and tipping detection function, or the equipment that adds this function is expensive and has a complex system. Utility Model Content

[0004] In order to solve the above-mentioned problem, the utility model proposes an LED screen drop detection auxiliary device, which detects the drop detection data of the LED screen through a drop detection unit, makes a judgment through a main control unit and transmits the data to a monitoring terminal, thereby realizing real-time detection of the LED screen. The utility model has a simple structure and is suitable for drop detection of most LED screens.

[0005] According to some embodiments, the utility model adopts the following technical solution: an LED screen drop detection auxiliary device, a housing, a PCB board arranged in the housing, a main control unit integrated on the PCB board, a drop detection unit electrically connected to the main control unit, and a communication unit communicatively connected to the main control unit;

[0006] The drop detection unit is used to obtain drop detection data and transmit it to the main control unit; the main control unit is used to process the received drop detection data and transmit it to the monitoring terminal through the communication unit.

[0007] In addition, an LED screen drop detection auxiliary device according to an embodiment of the utility model may also have the following additional technical features:

[0008] Preferably, the drop detection unit collects drop detection data via an inclination acceleration sensor.

[0009] Preferably, the main control unit stores and outputs the XYZ-axis acceleration data of the inclination acceleration sensor.

[0010] Preferably, the communication unit adopts RS485.

[0011] Preferably, the main control unit, the drop detection unit and the communication unit are spliced ​​through pins and integrated on a PCB board.

[0012] Preferably, it also includes a filtering decoupling circuit and a pull-up power supply circuit electrically connected to the drop detection unit.

[0013] Preferably, it further comprises a power supply unit, which supplies power to the main control unit, the fall detection unit and the communication unit.

[0014] Preferably, the main control unit adopts an STM8S003F main control chip.

[0015] Preferably, it also includes a reset circuit electrically connected to the main control unit.

[0016] Preferably, a bolt hole is provided at the protruding portion of the shell, and is fixedly connected to the inside of the LED screen through the bolt hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model detects the drop detection data of the LED screen through the drop detection unit, makes a judgment through the main control unit and transmits the data to the monitoring terminal, thereby realizing real-time detection of the LED screen, and has a simple structure, and is suitable for drop detection of most LED screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall principle of the LED screen drop detection auxiliary device of the utility model;

[0021] Figure 2 This is a schematic diagram of the main control unit circuit in the utility model;

[0022] Figure 3 This is a schematic diagram of the circuit of the central axis acceleration sensor chip of the utility model;

[0023] Figure 4 This is a schematic diagram of the acceleration sensor power supply and data filtering decoupling circuit in the utility model;

[0024] Figure 5 This is a schematic diagram of the pull-up power supply for the data selection of the central axis acceleration sensor of the utility model;

[0025] Figure 6 This is a schematic diagram of the reset circuit of the main control chip in the utility model;

[0026] Figure 7 It is the program burning interface of the central control chip of the utility model;

[0027] Figure 8 It is the auxiliary device I / O interface and power supply interface in the utility model;

[0028] Fig. 9 It is the main control chip working status indicator light and circuit power supply status indicator light circuit in the utility model;

[0029] Fig.10 It is a schematic diagram of the shell in the utility model. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] In the present utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present utility model. They do not specifically refer to any part or element in the present utility model and cannot be understood as limitations on the present utility model. In the present utility model, terms such as "fixedly connected", "connected", "connected" and the like should be understood in a broad sense, indicating that they can be fixedly connected, integrally connected or detachably connected; they can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances, and they cannot be understood as limitations on the present utility model.

[0033] Embodiment 1

[0034] like Figure 1 As shown, this embodiment provides an LED screen drop detection auxiliary device, including: a main control unit, a drop detection unit electrically connected to the main control unit, and a communication unit communicatively connected to the main control unit;

[0035] The fall detection unit is used to obtain the fall detection data and transmit it to the main control unit; the main control unit is used to transmit the received fall detection data to the monitoring terminal through the communication unit.

[0036] like Figure 3 As shown, in this embodiment, the drop detection unit adopts the inclination acceleration sensor LIS2DH12, and the drop detection data of the LED screen is collected by the inclination acceleration sensor. The inclination acceleration sensor collects xyz-axis acceleration data and transmits it to the main control unit through the IIC transmission method.

[0037] like Figure 2 As shown, in this embodiment, the main control unit adopts STM8S003F, and the main control unit receives the xyz-axis acceleration data transmitted by the inclination acceleration sensor. The main control unit processes the data into the data format type specified or designed by the user and transmits it to the communication unit through the connecting line. The main control chip IO data interface receives the 16-bit data of each axis of the xyz axis from the sensor, and makes a judgment in the internal program of the chip through 3 groups of 16-bit data to determine the angle tilt state of the xyz axis. The main control unit determines the tilt and sends the fall data in the protocol format pre-specified by the client through the communication unit.

[0038] In this embodiment, the communication unit uses an RS485 chip, receives the instruction of the main control unit and transmits and outputs the required data through RS485. The communication unit can also be equipped with a serial port to network port module to output the data through the network port.

[0039] In this embodiment, most of the modules in the LED screen are powered by DC 5V, and the internal 5V can be directly used to power the main control unit, the drop detection unit and the communication unit. The main control unit, the drop detection unit and the communication unit can also be powered by the power supply unit. After power-on, the auxiliary device starts to work, and the circuit board has a working status light to display when working.

[0040] In this embodiment, the main control unit, the drop detection unit and the communication unit are spliced ​​through pins and integrated on the PCB board.

[0041] like Figure 4 As shown, the data filtering and decoupling circuit of the acceleration sensor is also included, which mainly performs filtering and decoupling processing on the collected original signal to eliminate noise interference and improve the purity of the signal. Through the processing of the filtering and decoupling circuit, the data collected by the acceleration sensor can be made more accurate and reliable, thereby better meeting the application requirements.

[0042] The data filtering and decoupling circuit of the acceleration sensor includes a capacitor C30 and a capacitor C31 connected in parallel, one end of the capacitor C30 is connected to the LIS-vdd terminal and the 3.3v voltage of the axis acceleration sensor respectively, the other end of the capacitor C30 is grounded, one end of the capacitor C31 is connected to the LIS-vd-IO terminal of the axis acceleration sensor, and the other end of the capacitor C31 is grounded.

[0043] like Figure 5 As shown, the pull-up power supply circuit for selecting the data of the shaft acceleration sensor includes a resistor R27 and a resistor R28 connected in parallel, one end of the resistor R27 and the resistor R28 are respectively connected to the LIS-vd-IO terminal of the shaft acceleration sensor, the other end of the resistor R27 is connected to the LIS CS, and the other end of the resistor R28 is connected to the LIS SA0. By pulling up the power supply, the signal line of the sensor can be separated from the ground line, thereby reducing the influence of external interference on the sensor data collection and improving the anti-interference ability of the sensor.

[0044] like Figure 6 The reset circuit of the main control chip mainly ensures that the state of the chip can be correctly initialized when the main control chip is powered on or reset, so that it can enter a normal working state. The reset circuit of the main control chip includes a resistor R21, one end of the resistor R21 is connected to a 3.3v voltage, and the other end is respectively connected to NRST and one end of a capacitor C26, and the other end of the capacitor C26 is grounded.

[0045] like Figure 7 As shown, it is the program burning external terminal interface of the main control chip, which is used for the program burning function.

[0046] like Figure 8 As shown, it is the auxiliary device I / O interface and power supply interface, which is mainly the power supply interface of the entire device, through which the power supply voltage and current of each circuit are input. This interface also has the function of outputting high and low signals to the outside.

[0047] like Fig. 9 As shown, it is the main control chip working status indicator and the circuit power supply status indicator, which consists of two lights, one of which is the running status. Once the whole device is powered on, the running status light starts to light up. After the program starts running, the other light starts to flash.

[0048] like Fig.10 As shown, it also includes a shell, the PCB board is arranged in the shell, and the shell is threadedly connected to the LED screen.

[0049] Specifically, the main control unit, the drop detection unit and the communication unit are spliced ​​and integrated on the PCB board through pins. The PCB board is placed in the shell and sealed with a cover. Bolt holes are reserved at the protruding part of the shell, and the auxiliary device is fixed inside the LED screen through the bolt holes, and can also be fixed to the shell of the LED screen. The size of the shell is 10cm*10cm*20cm. There are screw holes at the bottom of the shell, which are fixed to the cover through the screw holes. The shell has certain rain and dustproof functions, and the PCB boards fixed inside are sprayed with three-proof paint, which can effectively prevent equipment failures caused by fog and dust.

[0050] This embodiment also includes a description of the monitoring terminal, which is connected to the remote monitoring management platform through the network port or serial port, supports multiple communication protocols, MQTT, MODBUS can share data to the cloud platform or various Internet of Things platforms, and users can view the status and data of the current device anytime and anywhere through the mobile client or platform end, which is convenient for management and maintenance.

[0051] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An LED screen drop detection auxiliary device, characterized in that: The invention comprises: a housing, a PCB board arranged in the housing, a main control unit integrated on the PCB board, a drop detection unit electrically connected to the main control unit, and a communication unit communicatively connected to the main control unit; The drop detection unit is used to obtain drop detection data and transmit it to the main control unit; the main control unit is used to process the received drop detection data and transmit it to the monitoring terminal through the communication unit.

2. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: The drop detection unit collects drop detection data through an inclination acceleration sensor.

3. The LED screen drop detection auxiliary device as claimed in claim 2, characterized in that: The main control unit stores and outputs the XYZ axis acceleration data of the inclination acceleration sensor.

4. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: The communication unit adopts RS485.

5. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: The main control unit, the drop detection unit and the communication unit are spliced ​​through pins and integrated on a PCB board.

6. The LED screen drop detection auxiliary device as claimed in claim 5, characterized in that: It also includes a filtering decoupling circuit and a pull-up power supply circuit electrically connected to the drop detection unit.

7. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: It also includes a power supply unit, which supplies power to the main control unit, the fall detection unit and the communication unit.

8. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: The main control unit adopts STM8S003F.

9. The LED screen drop detection auxiliary device as claimed in claim 1, characterized in that: A reset circuit is also included which is electrically connected to the main control unit.

10. The LED screen drop detection auxiliary device according to claim 1, characterized in that: The protruding portion of the shell is provided with a bolt hole, through which the shell is fixedly connected to the inside of the LED screen.

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