A trigger control method for screenshot of vehicle-mounted LCD instrument

Abstract

The present invention relates to the field of automobile instrument control technology, and specifically to a trigger control method for capturing a screenshot of an on-board liquid crystal instrument, comprising the following steps: S1: initializing the on-board liquid crystal instrument screenshot system and connecting to a preset on-board liquid crystal instrument module; S2: receiving a screenshot trigger command signal; S3: reading the screen information of the on-board liquid crystal instrument module and locating the area to be captured based on the comparison result of the screen information with a preset system character library; S4: the on-board liquid crystal instrument screenshot system executes a screenshot operation to obtain screenshot data based on the located screenshot area; S5: storing the screenshot data and displaying and / or transmitting it for viewing and sharing. The present invention can realize the on-board liquid crystal instrument screenshot function by connecting the on-board liquid crystal instrument screenshot system to the on-board liquid crystal instrument module. It has a wide range of applications and good versatility. It can accurately and correctly capture the instrument information seen by the user, and supports user viewing and sharing, which can effectively improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile instrument control, and in particular to a trigger control method for screenshotting an on-board liquid crystal instrument. Background Art

[0002] While a vehicle is in motion, the instrument cluster, as one of the most important instruments, displays critical information from various vehicle components, such as the vehicle's current speed, real-time engine speed, remaining fuel or battery level, abnormal warning lights for various vehicle components, and vehicle trip information. In the past, recording this information required drivers to manually use a mobile phone, camera, or other device to capture the instrument cluster. This was not only dangerous but also difficult to accurately capture, making it easy to miss the information that needed to be captured. With the advancement of electronic technology, onboard computers now store instrument cluster information in real time. However, this data is considered confidential and, for various reasons, is generally not accessible to anyone other than the manufacturer. Access to this information is limited to authorized devices, making it difficult for users to save or share it. To facilitate screenshots, current intelligent vehicles often come pre-installed with a manufacturer-provided screenshot function, allowing users to save desired instrument cluster information. However, some LCD instrument clusters lack this functionality, resulting in a poor user experience and significant inconvenience. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing method for retaining automobile LCD instrument information requires manual photography, which is highly dangerous and cannot accurately grasp the timing of screenshots, resulting in a poor user experience.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a trigger control method for taking screenshots of a vehicle-mounted liquid crystal instrument, comprising the following steps:

[0005] S1: Initialize the on-board LCD instrument screenshot system and connect to the preset on-board LCD instrument module;

[0006] S2: Receive screenshot trigger command signal;

[0007] S3: Read the screen information of the vehicle-mounted LCD instrument module, and locate the area to be captured based on the comparison result of the screen information with the preset system font library;

[0008] S4: The on-board LCD instrument screenshot system performs a screenshot operation to obtain screenshot data according to the located screenshot area;

[0009] S5: Store the screenshot data and display and / or transmit it for viewing and sharing.

[0010] When the present invention is working, the vehicle-mounted LCD instrument module is connected through the vehicle-mounted LCD instrument screenshot system, so as to realize the vehicle-mounted LCD instrument screenshot function, which has a wide range of applications and good versatility. At the same time, the screenshot work is triggered by the screenshot trigger command signal, and the area that needs to be screenshoted is located according to the comparison result of the screen information and the preset system font library. It can accurately and correctly collect the instrument information seen by the user, and support users to view and share, which can effectively improve the user experience.

[0011] Preferably, in step S2, the screenshot trigger instruction signal includes a screenshot trigger instruction signal output by a preset physical button and / or a screenshot trigger instruction signal output by a preset voice control system.

[0012] Preferably, in step S2, a preset automatic trigger instruction set is deployed in the vehicle-mounted LCD instrument screenshot system.

[0013] Preferably, in step S2, when receiving the screenshot trigger instruction signal, the method further includes the following steps:

[0014] A1: Collect vehicle driving status information, including vehicle posture information, vehicle internal and external environment information, and vehicle current location information, and store it in a structured manner as state time series data;

[0015] A2: The system monitors the dynamic changes of status data through a preset automatic trigger instruction set. When an abnormal situation is detected, it automatically outputs a screenshot trigger instruction signal to the on-board LCD instrument screenshot system.

[0016] Preferably, in step A2, the dynamic changes of the status data are monitored by a preset automatic trigger instruction set. When an abnormal situation is detected, a screenshot trigger instruction signal is automatically output to the vehicle-mounted LCD instrument screenshot system, and the following steps are adopted:

[0017] B1: Divide the length of the current monitoring window according to the preset monitoring interval rules;

[0018] B2: Real-time monitoring of status time series data streams, sliding updates according to the divided monitoring windows, and calculating dynamic changes based on each monitoring window;

[0019] B3: Automatically trigger the instruction set based on the dynamic change amount. When the dynamic change amount deviates from the preset threshold range, mark the timestamp with an abnormal time tag and synchronously output the screenshot trigger instruction signal to the vehicle LCD instrument screenshot system.

[0020] Preferably, in the step B2, when monitoring the state time series data stream in real time, the following steps are also included: performing data preprocessing on the state time series data, and identifying and filtering abnormal fluctuations in the state time series data by a preset preprocessing method.

[0021] Preferably, in step B2, when monitoring the state time series data stream in real time, the following steps are further included:

[0022] C1: Quantify the change trend of each part of the vehicle driving state information in the state time series data according to the length of the divided monitoring window, and obtain the change feature vector of each vehicle driving state information in several monitoring windows;

[0023] C2: Count the changing feature vectors of the historical monitoring window to obtain the baseline model of each vehicle's driving status information;

[0024] C3: Dynamically update the baseline model by monitoring the status time series data stream in real time.

[0025] Preferably, step B3 further includes the following steps: predicting the predicted values ​​of changes in driving status information of several vehicles in the current monitoring window based on the baseline model, and automatically triggering the matching of the instruction set by comparing the predicted values ​​with the corresponding change feature vectors in the current monitoring window.

[0026] Preferably, in step S1, the vehicle-mounted LCD instrument module adopts a matrix driving mode to achieve dynamic display of images by controlling the electric field of each pixel;

[0027] In step S3, when reading the screen information of the vehicle-mounted liquid crystal instrument module, the screen information includes at least one of mileage, vehicle speed, fuel consumption, instrument fault information and navigation status;

[0028] In the step S4, when the screenshot data is stored and displayed and / or transmitted for viewing and sharing, the following steps are also included: transmitting the screenshot data to the user terminal via a preset transmission method, and the transmission method includes wired transmission and / or wireless transmission.

[0029] Preferably, in step S3, the screen information of the vehicle-mounted LCD instrument module is read, and the area requiring screenshot is located according to the comparison result of the screen information with the preset system character library, by adopting the following steps:

[0030] D1: Read the screen information of the full screen or target window of the vehicle-mounted LCD instrument module;

[0031] D2: parse all identifiable information and its location in the screen information and obtain information recognition results;

[0032] D3: Match the information recognition result with the preset system character library for key information to obtain the comparison result;

[0033] D4: Based on the comparison results, dynamically calculate the area to be intercepted and output the corresponding area coordinates.

[0034] The beneficial technical effects of the present invention include:

[0035] The present invention connects the on-board LCD instrument module through the on-board LCD instrument screenshot system, and can realize the on-board LCD instrument screenshot function. It has a wide range of applications and good versatility. At the same time, the screenshot work is triggered by a screenshot trigger command signal, and the area that needs to be screenshoted is located according to the comparison result of the screen information with the preset system font library. It can accurately and correctly collect the instrument information seen by the user, support users to view and share, and can effectively improve the user experience.

[0036] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] Figure 1 This is a workflow diagram of a trigger control method for taking screenshots of an on-board LCD instrument panel;

[0039] Figure 2 This is a workflow diagram of step A2 in a method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel;

[0040] Figure 3 This is a workflow diagram of step B2 in a method for triggering and controlling a screenshot of an on-vehicle LCD instrument panel;

[0041] Figure 4 This is a workflow diagram of step S3 in a method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel. DETAILED DESCRIPTION

[0042] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0043] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0044] Example 1:

[0045] See also Figure 1 This embodiment discloses a method for triggering and controlling a screenshot of a vehicle-mounted LCD instrument panel, comprising the following steps:

[0046] S1: Initialize the on-board LCD instrument screenshot system and connect to the preset on-board LCD instrument module;

[0047] S2: Receive screenshot trigger command signal;

[0048] S3: Read the screen information of the vehicle-mounted LCD instrument module, and locate the area to be captured based on the comparison result of the screen information with the preset system font library;

[0049] S4: The on-board LCD instrument screenshot system performs a screenshot operation to obtain screenshot data according to the located screenshot area;

[0050] S5: Store the screenshot data and display and / or transmit it for viewing and sharing.

[0051] When this embodiment is working, the vehicle-mounted LCD instrument module is connected through the vehicle-mounted LCD instrument screenshot system, so that the vehicle-mounted LCD instrument screenshot function can be realized, which has a wide range of applications and good versatility. At the same time, the screenshot work is triggered by the screenshot trigger command signal, and the area that needs to be screenshoted is located according to the comparison result of the screen information and the preset system font library. It can accurately and correctly collect the instrument information seen by the user, and support users to view and share, which can effectively improve the user experience.

[0052] See also Figure 3 In this embodiment, in step S2, the screenshot trigger command signal includes a screenshot trigger command signal output by a preset physical button and / or a screenshot trigger command signal output by a preset voice control system. When working, a specific physical button can be set in the multi-function button area of ​​the steering wheel. The user can long press the physical button to output the screenshot trigger command signal to trigger the screenshot operation, or output the screenshot trigger command signal through the voice system to complete the screenshot and save the screenshot data to a specified location.

[0053] In a specific implementation, in step S1, the vehicle-mounted LCD instrument module adopts a matrix driving method to achieve dynamic display of images by controlling the electric field of each pixel;

[0054] In step S3, when reading the screen information of the vehicle-mounted liquid crystal instrument module, the screen information includes at least one of mileage, vehicle speed, fuel consumption, instrument fault information and navigation status;

[0055] In step S4, when the screenshot data is stored and displayed and / or transmitted for viewing and sharing, the following steps are also included: the screenshot data is transmitted to the user terminal through a preset transmission method. The transmission method includes wired transmission and / or wireless transmission, such as Bluetooth, data cable, WiFi, etc., which can be adaptively adapted according to market demand. Time and location watermarks can also be added to the screenshot data to facilitate customer review.

[0056] See also Figure 4 In the specific implementation, in step S3, the screen information of the vehicle-mounted LCD instrument module is read, and the area to be captured is located according to the comparison result of the screen information with the preset system font library, and the following steps are adopted:

[0057] D1: Read the screen information of the full screen or target window of the vehicle-mounted LCD instrument module;

[0058] D2: parse all identifiable information and its location in the screen information and obtain information recognition results;

[0059] D3: Match the information recognition result with the preset system character library for key information to obtain the comparison result;

[0060] D4: Based on the comparison results, dynamically calculate the area to be intercepted and output the corresponding area coordinates.

[0061] When working, you can also use pixel template matching and use the matched comparison results to expand the fixed ratio range outward, so as to completely capture the key information of each required screenshot.

[0062] Preferably, in order to further improve the accuracy of grasping the timing of screenshots, in step S2, a preset automatic trigger instruction set is deployed in the vehicle-mounted LCD instrument screenshot system. In specific implementation, the automatic trigger instruction set is set to be preloaded by the manufacturer or customized by the customer. For example, when the customer hopes to capture the vehicle's auspicious mileage of 6666km, 88888km, 100000km, etc., it can be set to automatically output a screenshot trigger instruction signal when the mileage reaches the corresponding mileage, and the vehicle-mounted LCD instrument screenshot system will execute the screenshot operation. Of course, the screenshot can be set at the highest vehicle speed or the lowest fuel consumption. The degree of customization is high, and the intelligent control of the screenshot operation can be realized, and the screenshot timing can be accurately grasped.

[0063] Example 2:

[0064] This embodiment provides a method for triggering and controlling screenshots of an in-vehicle liquid crystal instrument panel. The similarities with other embodiments are not repeated here, and the differences are described in detail below.

[0065] In this embodiment, when the screenshot trigger instruction signal is received in step S2, the following steps are further included:

[0066] A1: Collect vehicle driving status information, including vehicle posture information, vehicle internal and external environment information, and vehicle current positioning information, and store it in a structured manner as state time series data. During operation, vehicle posture information includes the vehicle's three-axis acceleration, three-axis angular velocity, roll angle, pitch angle, yaw angle, etc. Vehicle internal and external environment information includes data such as the temperature, humidity, carbon dioxide concentration, and environmental obstacles outside and inside the vehicle. The collected data is sorted by timestamp and stored in a structured manner as state time series data;

[0067] A2: The system monitors the dynamic changes of status data through a preset automatic trigger instruction set. When an abnormal situation is detected, a screenshot trigger instruction signal is automatically output to the on-board LCD instrument screenshot system. During operation, the acceleration calculation results of the vehicle can be monitored to determine whether there is a sudden acceleration or deceleration. This is beneficial when the vehicle positioning information deviates from the predicted lane. The instrument information can also be captured and retained. For example, when it detects that an obstacle is approaching quickly in front, the vehicle posture is unstable, or the environment is suddenly abnormal, a screenshot trigger instruction signal can be automatically output to the on-board LCD instrument screenshot system. The instrument information that the driver can see when the abnormal situation occurs can be retained and used as evidence to support subsequent work.

[0068] See also Figure 2 In this embodiment, in step A2, the dynamic changes of the status data are monitored by a preset automatic trigger instruction set. When an abnormal situation is detected, a screenshot trigger instruction signal is automatically output to the vehicle-mounted LCD instrument screenshot system. The following steps are adopted:

[0069] B1: Divide the length of the current monitoring window according to the preset monitoring interval rules;

[0070] B2: Real-time monitoring of status time series data streams, sliding updates according to the divided monitoring windows, and calculating dynamic changes based on each monitoring window;

[0071] B3: Automatically trigger the instruction set based on the dynamic change amount. When the dynamic change amount deviates from the preset threshold range, mark the timestamp with an abnormal time tag and synchronously output the screenshot trigger instruction signal to the vehicle LCD instrument screenshot system.

[0072] As a further improvement of this embodiment, in step B2, when monitoring the status time series data stream in real time, the following steps are also included: performing data preprocessing on the status time series data, and identifying and filtering abnormal fluctuations in the status time series data through a preset preprocessing method.

[0073] See also Figure 3Preferably, in step B2, when monitoring the state time series data stream in real time, the following steps are also included:

[0074] C1: Quantify the change trend of each part of the vehicle driving state information in the state time series data according to the length of the divided monitoring window, and obtain the change feature vector of each vehicle driving state information in several monitoring windows;

[0075] C2: Count the changing feature vectors of the historical monitoring window to obtain the baseline model of each vehicle's driving status information;

[0076] C3: Dynamically update the baseline model by monitoring the status time series data stream in real time.

[0077] During operation, in the step B3, the following steps are also included: predicting the predicted values ​​of changes in the driving status information of several vehicles in the current monitoring window based on the baseline model, automatically triggering the matching of the instruction set by comparing the predicted values ​​with the corresponding change feature vectors in the current monitoring window, and amplifying potential anomalies by comparing the predicted values, so that the screenshot trigger instruction signal can be output in time when the anomaly occurs, which can achieve a certain degree of prediction function and make the grasp of the screenshot timing more accurate.

[0078] The beneficial technical effects of this embodiment include: the present invention connects the on-board LCD instrument module through the on-board LCD instrument screenshot system, thereby realizing the on-board LCD instrument screenshot function, having a wide range of applications and good versatility. At the same time, the screenshot work is triggered by a screenshot trigger command signal, and the area requiring screenshot is located based on the comparison result between the screen information and the preset system font library. It can accurately and correctly collect the instrument information seen by the user, and supports user viewing and sharing, which can effectively improve the user experience.

[0079] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A method for triggering and controlling a screenshot of a vehicle-mounted liquid crystal instrument, characterized in that: The following steps are involved: S1: Initialize the on-board LCD instrument screenshot system and connect to the preset on-board LCD instrument module; S2: The on-board LCD instrument screenshot system is equipped with a preset automatic trigger command set and receives the screenshot trigger command signal; In step S2, when receiving the screenshot trigger instruction signal, The following steps are involved: A1: Collect vehicle driving status information, including vehicle posture information, vehicle internal and external environment information, and vehicle current location information, and store it in a structured manner as state time series data; A2: Monitor the dynamic changes of status data through a preset automatic trigger instruction set. When an abnormal situation is detected, the screenshot trigger instruction signal is automatically output to the vehicle LCD instrument screenshot system. The specific steps are as follows: B1: Divide the length of the current monitoring window according to the preset monitoring interval rules; B2: Real-time monitoring of status time series data streams, sliding updates according to the divided monitoring windows, and calculating dynamic changes based on each monitoring window; B3: Automatically trigger the instruction set based on the dynamic change amount. When the dynamic change amount deviates from the preset threshold range, the timestamp is marked with an abnormal time tag, and a screenshot trigger instruction signal is synchronously output to the vehicle LCD instrument screenshot system; S3: Read the screen information of the vehicle-mounted LCD instrument module, and locate the area to be captured based on the comparison result of the screen information with the preset system font library; S4: The on-board LCD instrument screenshot system performs a screenshot operation to obtain screenshot data according to the located screenshot area; S5: Store the screenshot data and display and / or transmit it for viewing and sharing.

2. The method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel according to claim 1, characterized in that: In step S2, the screenshot trigger instruction signal includes a screenshot trigger instruction signal output by a preset physical button and / or a screenshot trigger instruction signal output by a preset voice control system.

3. The method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel according to claim 1, characterized in that: In the step B2, when the state time series data stream is monitored in real time, the following steps are also included: performing data preprocessing on the state time series data, and identifying and filtering abnormal fluctuations in the state time series data by a preset preprocessing method.

4. The method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel according to claim 1, characterized in that: In step B2, when monitoring the state time series data stream in real time, the following steps are also included: C1: Quantify the change trend of each part of the vehicle driving state information in the state time series data according to the length of the divided monitoring window, and obtain the change feature vector of each vehicle driving state information in several monitoring windows; C2: Count the changing feature vectors of the historical monitoring window to obtain the baseline model of each vehicle's driving status information; C3: Dynamically update the baseline model by monitoring the status time series data stream in real time.

5. The method for triggering and controlling a screenshot of an on-vehicle liquid crystal instrument according to claim 4, characterized in that: In the step B3, the following steps are also included: predicting the predicted values ​​of the changes in the driving status information of several vehicles in the current monitoring window based on the baseline model, and automatically triggering the matching of the instruction set by comparing the predicted values ​​with the corresponding change feature vectors in the current monitoring window.

6. The method for triggering and controlling a screenshot of an in-vehicle LCD instrument panel according to claim 1, characterized in that: In step S1, the vehicle-mounted LCD instrument module adopts a matrix driving method to achieve dynamic display of images by controlling the electric field of each pixel; In step S3, when reading the screen information of the vehicle-mounted liquid crystal instrument module, the screen information includes at least one of mileage, vehicle speed, fuel consumption, instrument fault information and navigation status; In the step S4, when the screenshot data is stored and displayed and / or transmitted for viewing and sharing, the following steps are also included: transmitting the screenshot data to the user terminal via a preset transmission method, and the transmission method includes wired transmission and / or wireless transmission.

7. The method for triggering and controlling screenshot of an in-vehicle LCD instrument panel according to claim 1, characterized in that: In step S3, the screen information of the vehicle-mounted LCD instrument module is read, and the area to be captured is located according to the comparison result between the screen information and the preset system font library, and the following steps are adopted: D1: Read the screen information of the full screen or target window of the vehicle-mounted LCD instrument module; D2: parse all identifiable information and its location in the screen information and obtain information recognition results; D3: Match the information recognition result with the preset system character library for key information to obtain the comparison result; D4: Based on the comparison results, dynamically calculate the area to be intercepted and output the corresponding area coordinates.

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