A delay detection device
By designing a delay detection device that includes an input module, a display unit, an oscilloscope, and a photodiode, the problem of low delay detection efficiency in the prior art is solved, and efficient and accurate delay measurement of smart wearable devices and the like is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI AVATAR THREE WORLDS TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies lack convenient hardware-based delay detection devices, resulting in low delay detection efficiency. A large amount of measurement data is required to obtain an approximate delay time range, which affects product development and testing efficiency.
Design a delay detection device, including an input module, a display unit, an oscilloscope, and a photodiode, to achieve millisecond-level delay time measurement through direct potential connection and high-frequency precise sampling, suitable for smart wearable devices and other devices with display units.
It enables direct hardware measurement of latency detection for smart wearable devices, etc., which is accurate, convenient, widely applicable, simple to operate, and improves detection efficiency.
Smart Images
Figure CN224304162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart wearable device technology, specifically a delay detection device. Background Technology
[0002] Latency detection data from smart devices is an important parameter for the system. It not only reflects the system's operating status, but the system also frequently needs this parameter to adjust the operation of other programs.
[0003] For example, motion-to-photon latency is the time it takes for a user's movement to be fully reflected on the display. Virtual reality requires the support of many components found in modern smartphones. From sensors that record head movements, to the CPU running the VR application (and other programs running in the background), then the GPU working to calculate and create the image, modified for VR, and finally displayed on the screen. All these components need to work closely together to create what is called an immersive experience. The time required to achieve this is generally called motion-to-photon latency (the time from the start of a user's movement to the corresponding image appearing on the screen), and currently, the specific latency of electronic glasses needs to be determined.
[0004] Currently, there is a lack of targeted and convenient testing devices for this type of delay detection. Most delay detection methods on the market are based on the operation of built-in programs, without direct hardware measurement of the device's operational feedback. This is mainly because single-measurement efficiency is low, and a large amount of measurement data is required to obtain an approximate delay time range. Obtaining this delay time range often requires experimenters to carry bulky testing equipment and perform repeated measurements, which brings great inconvenience to product development and testing.
[0005] Based on this, the present invention designs a delay detection device to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a delay detection device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A delay detection device includes an input module, a display unit, an oscilloscope, and a photodiode. The input module is used to input a trigger action to the detection device. The potential signal of the input action of the input module is directly potential connected to the input terminal of the oscilloscope. The display unit serves as the output of the input module through a display mode. The photodiode is disposed on the display side of the display unit, and the output terminal of the photodiode is potential connected to the input terminal of the oscilloscope.
[0009] As a further embodiment of this utility model: the detection device includes an image acquisition and display system, and the input module includes an electrically controlled light source.
[0010] As a further embodiment of this utility model: the image acquisition and display system includes a CMOS image sensor, a display screen, and a main control board for processing the sensor and displaying the image; the electronically controlled light source includes input LEDs.
[0011] As a further aspect of this utility model, the input module is equipped with an automatic input function.
[0012] As a further embodiment of this utility model, the input module includes one or more combinations of various contact-conducting buttons, switches, or knobs.
[0013] As a further embodiment of this utility model, the input module includes one or more combinations of non-contact conductive sensors, image recognition, remote control signals, or software control inputs.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention can directly test the input-output delay of system devices with display units, and directly test the actual delay feedback time from the hardware structure and function. Relying on the high-frequency and precise sampling and display function of the oscilloscope, the actual system device delay time can be obtained through simple difference counting, achieving millisecond-level measurement. It is not only suitable for testing the actual delay of smart wearable devices, but also for other devices with display units, providing a new solution and technical means for delay detection of such devices.
[0016] The overall structure of this utility model relies on existing experimental equipment, and can be assembled into a test unit through simple setup. It is more flexible and convenient, has a wide range of applications, is simple and easy to operate, and is highly worthy of promotion. Attached Figure Description
[0017] Figure 1 This is a system block diagram of the entire present invention;
[0018] Figure 2 A system block diagram for implementing this utility model is provided below;
[0019] Figure 3 The following is a system block diagram illustrating the implementation of this utility model 2;
[0020] Figure 4 The following is a system block diagram illustrating the implementation of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] Input module 1, input LED 10, LED control board 11, button 12, trigger electrical component 13, display unit 2, CMOS image sensor 20, display screen 21, oscilloscope 3, photodiode 4. Detailed Implementation
[0023] Please see Figure 1-4 This utility model provides a technical solution: Example 1
[0024] A delay detection device includes an input module 1, a display unit 2, an oscilloscope 3, and a photodiode 4. The input module 1 is used to input a trigger action to the detection device. The potential signal of the input action of the input module 1 is directly potential connected to the input terminal of the oscilloscope 3. The display unit 2 serves as the output of the input module 1 through a display mode. The photodiode is disposed on the display side of the display unit 2, and the output terminal of the photodiode is potential connected to the input terminal of the oscilloscope 3.
[0025] At work, such as Figure 1 As shown, the time difference between the input module 1 triggering the input action and the display unit 2 outputting the display is the delay time. Here, the electrical signal generated synchronously by the input triggering action of the input module 1 is directly input to the oscilloscope 3. Once the input action is triggered, the oscilloscope 3 will show a significant waveform change. Record the time t1 at this time. When the display unit 2 responds to the input, that is, when the display unit 2 shows a significant brightness change, the photodiode 4 will immediately convert the light signal into an electrical signal and input it to the oscilloscope 3. At this time, the waveform of the corresponding channel of the oscilloscope 3 will also show a significant change. Record the time t2 at this time. Then t3 = t2 - t1, so t3 is the delay of a single input. By triggering the input multiple times, the delay dataset can be obtained. Through simple data analysis, the data distribution of the delay can be obtained, thereby obtaining the true effective delay range of the system.
[0026] The detection device includes an image acquisition and display system, and the input module 1 includes an electrically controlled light source;
[0027] The image acquisition and display system includes a CMOS image sensor 20, a display screen 21, and a main control board for processing the sensor and displaying the data. The electronically controlled light source includes an input LED 10.
[0028] In operation, an image acquisition and display system is listed here, such as... Figure 2As shown, to test the latency of this type of system, the input module 1 is set to an electrically controlled light source. Specifically, the image acquisition unit is set to a CMOS image sensor 20, and the electrically controlled light source uses an input LED 10. Here, high-frequency LED lighting can achieve rapid input, and the display screen 21 will output high-frequency data to the photodiode 4. By analyzing the waveform data of the oscilloscope 3, the time difference T is the latency of a single measurement, where each small interval is 10ms. This measurement method can measure the latency of the actual device to the millisecond level. Multiple measurements can quickly collect sufficient latency data, thereby obtaining a more accurate effective latency range. This setting method can be widely used in optical smart devices such as digital cameras and VR glasses.
[0029] The input module 1 is equipped with an automatic input function;
[0030] When working, a large amount of data needs to be collected, which requires repeated input and recording. Setting the input module 1 to have an automatic input function can greatly improve efficiency. The specific implementation method can be set according to the type of input module 1. For example, if the input module 1 is an input LED 10, then an LED control board 11 is set. The LED control board 11 can use the pulse control circuit to control the LED to light up and turn off at high frequency, thus realizing the automatic input function. Example 2
[0031] The difference between this embodiment and Embodiment 1 is that:
[0032] The input module 1 includes one or more combinations of various contact-conducting buttons, switches or knobs;
[0033] The input module 1 includes one or more combinations of non-contact conductive sensors, image recognition, remote control signals, or software control inputs.
[0034] At work, such as Figure 3As shown, the input here is button 12, which is equipped with an automatically triggered triggering component 13, enabling high-frequency triggering. The input of button 12 triggers the CMOS image sensor 20 and display screen 21 via the system motherboard 22. The signal obtained by the oscilloscope 3 is the instantaneous electrical signal when button 12 is turned on; the delay of the triggering component 13 and the system motherboard 22 is irrelevant. Finally, when the display screen 21 displays, it triggers the photodiode to operate, thus obtaining the delay time of a single button 12 trigger. By performing high-frequency opening and closing of the triggering component 13, the delay time dataset can be obtained, allowing for the calculation of its approximate delay time range. When the button type is input module 1, then the external... The unit needs to be equipped with a direct drive trigger electrical component 13. The trigger electrical component 13 can be, for example, a cylinder. Note that the input signal of the input module 1 here is not the electrical signal that drives the cylinder. Instead, a power-on signal needs to be set in the button closing circuit and directly connected to the oscilloscope 3. This is because there is a delay between the electrical signal that drives the cylinder and the cylinder action itself. The input module 1 is the same for all types of systems. As long as the input module 1 that is adapted to the input action is completed, the corresponding input action can be completed. The input action can be mechanical action or photoelectric or thermal action, etc., but as long as the zero-delay potential signal can be directly electrically connected to the input terminal of the oscilloscope 3, it is acceptable. Example 3
[0035] The difference between this embodiment and Embodiment 1 is that:
[0036] It also includes a data processing unit 5 for analyzing and processing waveform data from the input module 1 of the oscilloscope 3 and the input of the photodiode 4. The data processing unit 5 includes an image analysis module, a CSV file processing module, or a waveform viewing and processing module.
[0037] In actual operation, when performing statistical tests on delay, the number of inputs is usually in the hundreds or thousands. Relying solely on manual calculation by comparing each waveform on the oscilloscope 3 is extremely time-consuming and laborious. Therefore, the waveforms from the oscilloscope 3 are generally exported. Currently, the common data saving formats for the oscilloscope 3 include image files, CSV files, and WFM files. Image files require image recognition and processing software. CSV files can be opened and viewed using Excel or any text editor, or the data can be imported using well-organized CSV data, for example, for simulation analysis in Matlab or Simulink. WFM files require corresponding waveform viewing software for editing. There are many further methods and approaches for setting up the data processing unit 5, which will not be elaborated here.
[0038] The data processing unit 5 is equipped with a data display unit 50, which is used by the data processing unit 5 to directly display the statistical data without external export.
[0039] At work, for example Figure 4 As shown, taking the image acquisition and display system as an example, the data from the oscilloscope 3 is transmitted to the processing unit 5. The processing unit 5 can process the data independently, and the corresponding data display unit 50 can directly organize and display the delay data without additional export. This allows for direct, fast, and intuitive display of test results.
Claims
1. A delay detection device, characterized in that: The device includes an input module, a display unit, an oscilloscope, and a photodiode. The input module is used to input trigger actions to the detection device. The potential signal of the input action of the input module is directly potential connected to the input terminal of the oscilloscope. The display unit serves as the output of the input module through a display method. The photodiode is disposed on the display side of the display unit, and the output terminal of the photodiode is potential connected to the input terminal of the oscilloscope.
2. The delay detection device according to claim 1, characterized in that: The detection equipment includes an image acquisition and display system, and the input module includes an electrically controlled light source.
3. The delay detection device according to claim 2, characterized in that: The image acquisition and display system includes a CMOS image sensor, a display screen, and a main control board for processing the sensor data and displaying the data. The electronically controlled light source includes input LEDs.
4. The delay detection device according to claim 1, characterized in that: The input module is equipped with an automatic input function.
5. The delay detection device according to claim 1, characterized in that: The input module includes one or more combinations of various contact-conducting buttons, switches, or knobs.
6. The delay detection device according to claim 1, characterized in that: The input module includes one or more combinations of non-contact conductive sensors, image recognition, remote control signals, or software control inputs.