A screen brightness and loudspeaker output detection apparatus

Abstract

The utility model discloses a screen brightness and loudspeaker output detection device, it includes microcontroller and with microcontroller connection photosensitive circuit and vibration circuit, photosensitive circuit includes photosensitive sensor and first switch quantity conversion circuit, vibration circuit includes vibration sensor and second switch quantity conversion circuit, photosensitive sensor is configured in the illumination area of display screen to detect display screen brightness, and photosensitive sensor is connected microcontroller through first switch quantity conversion circuit, vibration sensor is installed in the sound emitting part of loudspeaker to detect the vibration state of loudspeaker, and each loudspeaker is configured with a vibration sensor respectively, and vibration sensor is connected microcontroller through second switch quantity conversion circuit, first switch quantity conversion circuit and second switch quantity conversion circuit are used to convert the analog electric signal of input into digital signal output, microcontroller controls photosensitive sensor and vibration sensor work, and microcontroller is connected with host computer communication. The utility model realizes the convenient and quick detection to display screen and loudspeaker.

Description

Technical Field

[0001] This utility model relates to the field of display device testing technology, and in particular to a screen brightness and speaker output testing device. Background Technology

[0002] Existing display devices lack an automatic method to determine the audio output status of the display device under power-on / power-off conditions by automatically sensing the screen brightness: a method for detecting silent / sound output. Existing methods for determining sound (silent / sound) under power-on / power-off conditions require manual judgment. Utility Model Content

[0003] The purpose of this invention is to provide a device for detecting screen brightness and speaker output.

[0004] The technical solution adopted in this utility model is:

[0005] A screen brightness and speaker output detection device includes a microcontroller and a photosensitive circuit and a vibration circuit connected to the microcontroller. The photosensitive circuit includes a photosensitive sensor and a first switching converter circuit. The vibration circuit includes a vibration sensor and a second switching converter circuit. The photosensitive sensor is disposed in the illuminated area of ​​the display screen to detect the screen brightness and is connected to the microcontroller via the first switching converter circuit. The vibration sensor is installed at the sound output location of the speaker to detect the speaker's vibration state; each speaker is equipped with one vibration sensor. The vibration sensor is connected to the microcontroller via the second switching converter circuit. The first and second switching converter circuits convert input analog electrical signals into digital signals for output. The microcontroller controls the operation of the photosensitive sensor and the vibration sensor. The microcontroller is communicatively connected to a host computer.

[0006] Furthermore, the photosensitive sensor detects the brightness of the display screen and outputs a corresponding analog electrical signal of brightness to the first switching conversion circuit.

[0007] Furthermore, the vibration sensor detects the vibration state of the speaker and outputs the corresponding vibration analog electrical signal to the second switching conversion circuit.

[0008] Furthermore, the microcontroller is connected to supporting peripheral circuits, including power supply circuits, clock circuits, etc.

[0009] Furthermore, the microcontroller uses the UNO R3 development board.

[0010] Furthermore, the vibration circuit uses a digital vibration sensor, specifically the SW-18010P vibration sensor.

[0011] Furthermore, the microcontroller is connected to a display device power-on / off control device, which controls the display device to power on or off.

[0012] Furthermore, the power on / off control device for the display device is a remote control mouse for the display device; the remote control mouse for the display device communicates wirelessly with the display device and controls the display device to power on or off.

[0013] Furthermore, the power-on / off control device for the display device is a switching relay; the switching relay is connected in series at the power supply of the display device, and the switching relay turns the power supply of the display device on or off under the control of the microcontroller.

[0014] This invention employs the above technical solutions. By placing a photosensitive sensor in the illuminated area of ​​the display screen, it detects the brightness of the screen, facilitating subsequent determination of whether the display device is powered on or off. Furthermore, by configuring a vibration sensor at the speaker's output location, it detects whether the speaker vibrates, thus facilitating subsequent determination of the speaker's output status. This invention enables convenient and rapid detection of both the display screen and the speaker. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0016] Figure 1 This is a schematic diagram of the circuit principle of a screen brightness and speaker output detection device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0019] Reference numerals: 1-Display device; 2-Speaker 1; 3-Speaker 2; 4-Vibration sensor; 5-Photosensitive sensor; 6-Second switch conversion circuit; 7-First switch conversion circuit; 8-Microcontroller; 9-Host host; 10-Remote control mouse; 11-Switch relay. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3As shown in the figure, this utility model discloses a screen brightness and speaker output detection device, including a microcontroller and a photosensitive circuit and a vibration circuit connected to the microcontroller; the photosensitive circuit includes a photosensitive sensor and a first switching quantity conversion circuit; the vibration circuit includes a vibration sensor and a second switching quantity conversion circuit; the photosensitive sensor is disposed in the illuminated area of ​​the display screen to detect the brightness of the display screen, and the photosensitive sensor is connected to the microcontroller through the first switching quantity conversion circuit; the vibration sensor is installed at the sound output part of the speaker to detect the vibration state of the speaker, and each speaker is respectively configured with a vibration sensor; the vibration sensor is connected to the microcontroller through the second switching quantity conversion circuit; the first switching quantity conversion circuit and the second switching quantity conversion circuit are used to convert the input analog electrical signal into a digital signal output; the microcontroller controls the operation of the photosensitive sensor and the vibration sensor; the microcontroller is communicatively connected to a host computer.

[0022] Furthermore, the photosensitive sensor detects the brightness of the display screen and outputs a corresponding analog electrical signal of brightness to the first switching conversion circuit.

[0023] Furthermore, the vibration sensor detects the vibration state of the speaker and outputs the corresponding vibration analog electrical signal to the second switching conversion circuit.

[0024] Furthermore, the microcontroller is connected to supporting peripheral circuits, including power supply circuits, clock circuits, etc.

[0025] Furthermore, the microcontroller uses the UNO R3 development board. Also, the vibration circuit uses a digital vibration sensor, specifically the SW-18010P vibration sensor.

[0026] Specifically, as a feasible implementation, when using the UNO R3 development board as a microcontroller, a SW-18010P vibration sensor module is set for each of the two speakers. SW-18010P vibration sensor 1 is fixed at the left speaker position of the display device, and SW-18010P vibration sensor 2 is fixed at the right speaker position of the display device.

[0027] The SW-18010P vibration sensor module is connected to the UNO R3 board, and the specific connection relationship is as follows:

[0028] Connections for vibration sensor 1: Connect the GND (G) pin to the Arduino's GND pin. Connect the VCC (V) pin to the Arduino's 5V pin. Connect the DO (digital output) pin to the Arduino's digital pin D2.

[0029] Connections for vibration sensor 2: Connect the GND (G) pin to the Arduino's GND pin. Connect the VCC (V) pin to the Arduino's 5V pin. Connect the DO (digital output) pin to the Arduino's digital pin D3.

[0030] The photoresistor module is fixed in the center of the display screen; the photoresistor module is connected to the UNO R3 board: the GND (G) pin is connected to the Arduino's GND pin. The VCC (V) pin is connected to the Arduino's 3.3V pin. The DO (digital output) pin is connected to the Arduino's digital pin D4.

[0031] Furthermore, the microcontroller is connected to a power-on / off control device for the display device, which is either a remote control mouse or a switch relay. The remote control mouse communicates wirelessly with the display device and controls the display device to power on or off. The switch relay is connected in series with the power supply of the display device and turns the power supply of the display device on or off under the control of the microcontroller.

[0032] Furthermore, the host computer is equipped with a detection program that provides speaker detection functionality and displays the detection results.

[0033] After receiving the data, the host computer will process the data, add the data reception time, and mark the silence, so that ordinary technicians in the field can quickly locate the time point and duration of the silence phenomenon.

[0034] Based on the detection device of this utility model, the following detection functions can be selectively implemented:

[0035] Further, the status of the photosensor is detected:

[0036] When the brightness of the display screen is detected by the photosensitive sensor, the photosensitive sensor outputs an analog electrical signal to the first switching conversion circuit, which converts it into a low-level brightness digital signal. The microcontroller processes the low-level brightness digital signal and determines that the display screen is on. If the screen is on, it will continue to detect the vibration of the speaker by the vibration sensor.

[0037] When the photosensitive sensor does not detect the brightness of the display device screen, the photosensitive sensor outputs an analog electrical signal to the first switching conversion circuit, which converts it into a high-level digital brightness signal. The microcontroller processes the high-level digital brightness signal and determines that the display device screen brightness is not detected, and then stops the detection operation.

[0038] Furthermore, the vibration sensor detects the speaker's vibration state as follows:

[0039] When the current vibration sensor detects vibration of the display device, it outputs an analog electrical signal to the second switching conversion circuit to convert it into a high-level digital vibration signal. The microcontroller processes the digital vibration signal to obtain the speaker detection result and summarizes it to the host computer. The host computer parses the detection result transmitted by the microcontroller and displays the corresponding speaker output status as having sound through the display interface.

[0040] When the vibration sensor does not detect vibration of the display device, it outputs an analog signal to the second switching conversion circuit to convert it into a low-level digital vibration signal. The microcontroller processes the digital vibration signal to obtain the speaker detection result and summarizes it to the host computer. The host computer parses the detection result transmitted by the microcontroller and displays the corresponding speaker output status as silent through the display interface.

[0041] Specifically, the photosensitive sensor is placed in the center of the display screen, ensuring that it can only detect screen brightness. The vibration sensor is fixed to the speaker with tape. When the photosensitive sensor detects the screen brightness of the display device, it transmits the information to the first switching conversion circuit. When the vibration sensor detects that the speaker 1 and speaker 2 of the display device are vibrating (i.e., speakers 1 and 2 are in a sound output state), it transmits the information to the second switching conversion circuit. The microcontroller reads the information from the first switching conversion circuit, determines the switching output (high / low level), and when the switching output is LOW (screen lit), it delays for a period of time (the display device's logo display time) and reads the signal from the second switching conversion circuit. The second switching conversion circuit converts the vibration signal into a digital switching output (high / low level) and sends it to the microcontroller. The microcontroller reads the high / low level signal, performs logical judgment and response control (if speaker 1 is detected to vibrate, the left channel outputs sound; if no vibration is detected, the left channel outputs no sound; if speaker 2 is detected to vibrate, the right channel outputs sound; if no vibration is detected, the right channel outputs no sound), and transmits the data to the host computer software for processing.

[0042] To prevent the serial port from printing information frequently, the microcontroller can be set to output the judgment result once every 5 seconds. If vibration is detected within 5 seconds, the current device's audio data information will be output and displayed. If no vibration is detected for 4 consecutive seconds within 5 seconds, the current device's silent data information will be output and displayed (the time can be changed).

[0043] This invention employs the above technical solutions. By placing a photosensitive sensor in the illuminated area of ​​the display screen, it detects the brightness of the screen, facilitating subsequent determination of whether the display device is powered on or off. Furthermore, by configuring a vibration sensor at the speaker's output location, it detects whether the speaker vibrates, thus facilitating subsequent determination of the speaker's output status. This invention enables convenient and rapid detection of both the display screen and the speaker.

[0044] Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The components of the embodiments of this application described and illustrated herein can generally be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A screen brightness and speaker output detection device, characterized in that: It includes a microcontroller and a photosensitive circuit and a vibration circuit connected to the microcontroller; the photosensitive circuit includes a photosensitive sensor and a first switching conversion circuit; the vibration circuit includes a vibration sensor and a second switching conversion circuit; the photosensitive sensor is configured in the illuminated area of ​​the display screen to detect the brightness of the display screen, and the photosensitive sensor is connected to the microcontroller through the first switching conversion circuit. Vibration sensors are installed at the sound output of the loudspeakers to detect the vibration state of the loudspeakers, and each loudspeaker is equipped with a vibration sensor; the vibration sensors are connected to the microcontroller through a second digital signal conversion circuit; the first and second digital signal conversion circuits are used to convert the input analog electrical signals into digital signals for output; the microcontroller controls the operation of the photosensitive sensor and the vibration sensor; the microcontroller communicates with the host computer.

2. The screen brightness and speaker output detection device according to claim 1, characterized in that: The photosensitive sensor detects the brightness of the display screen and outputs the corresponding brightness analog electrical signal to the first switching quantity conversion circuit.

3. The screen brightness and speaker output detection device according to claim 1, characterized in that: The vibration sensor detects the vibration state of the speaker and outputs the corresponding vibration analog electrical signal to the second switching conversion circuit.

4. The screen brightness and speaker output detection device according to claim 1, characterized in that: The microcontroller is connected to a set of peripheral circuits, including power supply circuits, clock circuits, etc.

5. The screen brightness and speaker output detection device according to claim 1, characterized in that: The microcontroller uses the UNO R3 development board.

6. The screen brightness and speaker output detection device according to claim 1, characterized in that: The vibration circuit uses a digital vibration sensor, specifically the SW-18010P vibration sensor.

7. The screen brightness and speaker output detection device according to claim 1, characterized in that: The microcontroller is connected to a power on / off control device for the display device, which controls the power on or off of the display device.

8. The screen brightness and speaker output detection device according to claim 7, characterized in that: The power on / off control device for the display device is a remote control mouse; the remote control mouse communicates wirelessly with the display device and controls the display device to power on or off.

9. The screen brightness and speaker output detection device according to claim 7, characterized in that: The power on / off control device for the display device is a switching relay; the switching relay is connected in series at the power supply of the display device, and the switching relay turns the power supply of the display device on or off under the control of the microcontroller.

Images