CN114199464A - SF6 gas leakage detection handheld equipment for realizing video display control - Google Patents
SF6 gas leakage detection handheld equipment for realizing video display control Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 238000012545 processing Methods 0.000 claims abstract description 38
- 230000003993 interaction Effects 0.000 claims abstract description 20
- 238000011161 development Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 108091006146 Channels Proteins 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
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Abstract
The invention discloses SF6 gas leakage detection handheld equipment for realizing video display control, which belongs to the field of embedded video display control, and is characterized in that the equipment collects two paths of videos aiming at an SF6 detection scene, one path of high-definition visible light video and one path of infrared video, the two paths of videos can be superposed and transmitted with a designed human-computer interaction interface and detected information, the transmission mode adopts a channel binding mode, the videos can be bound to an OLED screen for display and observed through an eyepiece, or bound to an LCD screen for display, or bound to a video coding and decoding channel for processing such as photographing and video recording, and the equipment receives a command sent by a key or a touch screen to realize the binding operation. Finally, the formed video or image file is stored on an internal TF card of the equipment, and can be connected with external equipment such as a computer and the like through a USB2.0 interface to realize quick copy and the like of the equipment file.
Description
Technical Field
The invention belongs to the technical field of embedded video display control, and particularly relates to SF6 gas leakage detection handheld equipment for realizing video display control.
Background
Today's handheld electronic device technology is developing day by day, and video processing-related technology is very important in today's work and life, and all walks of life are in intense competition. The handheld device has the advantages of convenience, portability and the like, and is widely applied in various industry fields. The display, storage and transmission of the video images have very important significance on the functions and user experience of the handheld device, and the demands of high-definition video images, device miniaturization and the like are increasingly urgent, so that what method and platform are adopted to complete video display and control are very important.
The application scene of the SF6 gas leak detection handheld device is complex, in order to have a better observation effect, an eyepiece viewing port and a display screen are often required to be arranged at the same time, the collected video also comprises images such as visible light and infrared light, and the images also need to be switched quickly and conveniently.
SF6 gas leak detection handheld equipment requires long-time remote use, needs to utilize video coding and decoding technology to compress high definition video, and needs to save storage space while guaranteeing video quality. In order to conveniently and rapidly transmit files such as videos of equipment, it is also an important function to find a suitable external interface for file transmission.
Most of existing SF6 gas leak detection handheld devices are simple in display and control, only detection data are provided, video images are not provided, or visible light video resolution is insufficient, high-definition images which are clear enough cannot be provided, or video input interfaces are too few, infrared image observation can be often provided, observation modes are single, multiple observation modes cannot be provided to deal with different application scenes, storage capacity is insufficient, and long-time recording of field videos cannot be guaranteed so as to provide evidence for follow-up analysis.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the SF6 gas leakage detection handheld device for realizing video display control can meet the characteristics of multiple video input interfaces, various output displays, high-definition video coding and decoding, large video storage capacity, high transmission speed requirement and the like of the SF6 gas leakage detection handheld device.
In order to achieve the above object, the present invention provides a SF6 gas leakage detection handheld device for realizing video display control, including: the device comprises a video acquisition module, a processing chip and a video display module;
the video acquisition module comprises an SF6 gas infrared detector and an SF6 gas visible light detector; the processing chip comprises a video processing module, a video transmission module, a human-computer interaction module, a video coding and decoding module and a file storage and transmission module; the video display module comprises an OLED display screen and an LCD display screen;
two paths of videos are collected aiming at an SF6 detection scene, one path of high-definition visible light video is collected by an SF6 gas visible light detector, one path of infrared video is collected by an SF6 gas infrared detector, the two paths of videos can be overlapped with a human-computer interaction interface designed through a human-computer interaction module and information detected by a video processing module and transmitted through the video transmission module, the video transmission module adopts a transmission mode of a binding channel, the two paths of videos are bound to an OLED display screen for display and observe the videos through an eyepiece or bound to an LCD display screen for display or bound to a video coding and decoding channel for processing through a video coding and decoding module according to an instruction sent by receiving a key or a touch screen, and finally formed videos or image files are stored on an internal storage card of the equipment through the file storage and transmission module, and can be connected with an external device to realize the communication between the device file and the external device.
According to the display and control method, two paths of video acquisition and two different modes of display are completed through the mode, the rapid mutual switching between multiple channels is realized through a binding mode, and the acquisition, processing, display, coding, storage and transmission are modularized and are in binding communication with each other, so that the display and control method of multi-channel input and multi-channel output is realized.
In some optional embodiments, to achieve the video capture goal, the video capture module is based on a domestic haisi platform-based multi-interface video input driver, including Mipi, parallel port, etc., to cover the input requirements of various types of interfaces;
and in an SF6 gas leak detection scene, acquiring high-definition visible light video images with the resolution of 2592 multiplied by 1944 through one Mipi interface, and acquiring thermal infrared imager images through a parallel port BT.656 interface to finish the acquisition of two video images.
In some optional embodiments, the collected video is processed, and the video processing module performs technical processing on video input images with different resolutions, including functions of character superposition of SF6 gas leak detection related information, cutting of original video images, and human-computer interaction interface superposition.
In some optional embodiments, to achieve the video transmission goal, the video image processed by the video processing module is configured to different transmission channels in the video transmission module, and the subsequent display output and storage coding achieve fast switching by binding.
Through the processing of the video processing module, the display from the visible light video image to the OLED display screen, the display from the visible light video image to the HDMI, the display from the infrared image to the OLED display screen, the display from the infrared image to the HDMI, the processing from the visible light video image to the video coding and decoding module, the processing from the infrared image to the video coding and decoding module and the like can be realized.
In some optional embodiments, in order to create a better device human-computer interaction experience, on one hand, the human-computer interaction module completes programming development of a human-computer interaction interface through QT and the like and controls on an LCD display touch screen; on the other hand, the device and the display interface can be controlled through the keys, the control interface feeds back related display control information of the handheld device and an operation interface of man-machine interaction, the control interface is overlapped with the input video in the video processing module, and finally the control interface can be controlled through the touch screen.
In some optional embodiments, in order to achieve the goal of multi-channel video display, the video display module needs to complete multi-interface video display driving on the device platform, including HDMI, LVDS interface, and the like, and can implement two display and observation modes, one is an eyepiece-OLED display mode, in which observation is performed through an eyepiece; and secondly, the LCD screen displays, so that a user can observe the display screen at a short distance.
In some optional embodiments, in order to achieve the goal of video storage and transmission, the video encoding and decoding module selects and binds with a video transmission channel after video acquisition and processing, and performs encoding and decoding processing on the acquired video image by the video encoding and decoding module after binding is completed, so that photographing, recording and playback functions can be achieved, the video encoding and decoding module can achieve dynamic code rate adjustment, the video image quality is guaranteed, the size of a video encoding file is reduced, and storage resources are saved.
In some optional embodiments, in order to achieve the purpose of video storage and transmission, the file storage and transmission module is responsible for storing video files of the handheld device and performing file transmission with external devices such as a computer, the storage of the files inside the device is completed by means of a TF card, the selected external transmission interface is USB2.0 and the like, and drive development in formats such as fat32, exFAT and the like and corresponding USB gap drive development need to be completed under the file storage and transmission module;
meanwhile, the video image processed by the video processing module is superposed with a human-computer interface, relevant comprehensive information is transmitted to the video coding and decoding module for coding, and finally the video image is stored under the file storage and transmission module, the stored files are stored according to a custom name, the stored storage medium is not less than 64G, and the size of a single file stored by adopting the TF card in the exFAT format can be larger than 4G or even larger;
finally, the SF6 gas leak detection handheld device can be connected with a computer and the like through USB2.0, after being connected into external equipment such as the computer and the like as slave equipment, the video file of the equipment is accessed and transmitted by using a USB interface, and the actual transmission rate reaches 10 MB/s.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
the device collects two paths of videos aiming at an SF6 detection scene, one path of high-definition visible light video and one path of infrared video, the two paths of videos can be overlapped and transmitted with a designed human-computer interaction interface and detected information, the transmission mode adopts a channel binding mode, the two paths of videos can be bound to an OLED screen for display and can be observed through an eyepiece, or the two paths of videos can be bound to an LCD screen for display, or the two paths of videos can be bound to a video coding and decoding channel for processing such as photographing and video recording, and the device receives a command sent by a key or a touch screen to realize the binding operation. Finally, the formed video or image file is stored on an internal TF card of the equipment, and can be connected with external equipment such as a computer and the like through a USB2.0 interface to realize quick copy and the like of the equipment file. The characteristics of SF6 gas leak detection handheld equipment such as many video input interfaces, various output displays, high-definition video coding and decoding, large video storage capacity, high transmission speed requirement and the like can be met.
Drawings
Fig. 1 is a schematic diagram of a SF6 gas leak detection handset provided by an embodiment of the present invention;
fig. 2 is a flow chart of an implementation provided by the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic diagram of an SF6 gas leak detection handheld device provided in an embodiment of the present invention, where an SF6 gas leak detection handheld device 100 acquires a video image in a gas leak scene through an infrared detector 101 and a visible light detector 102, and the video image is transmitted to an internal haisi chip 103, where the haisi chip is a comprehensive processing platform of the device, and all relevant functions are implemented and processed here, and is a core platform, which includes: the system comprises a video processing module, a video transmission module, a man-machine interaction module, a video coding and decoding module and a file storage and transmission module. The processed video image is finally transmitted to an OLED display screen 104 to be observed through an eyepiece 105 or transmitted to be displayed on an LCD screen.
As shown in fig. 2, which is a specific implementation flow of the present invention, a video acquisition module first acquires two video sources of an SF6 detection scene, one is a high-definition visible light video image with a resolution of 2592 × 1944, and the other is an infrared video image. After the two paths of videos are transmitted to the platform, the detected useful information can be superposed on the original video according to the requirements of users, or the original video is cut to the required resolution ratio for photographing or other processing, and meanwhile, a human-computer interaction interface for control is superposed on other video layers. The video processing module transmits a processed video source with superimposed information to the video transmission module after completing the processing, the video transmission module is a key for binding the video source, the processed video source can be bound to an LVDS interface for OLED screen display, bound to an HDMI interface for LCD screen display or bound to a video coding and decoding module for shooting and recording and the like, the video source can be a high-definition visible light video source or an infrared video source, the video transmission module is bound according to different channel IDs, each module is bound by requesting different channel IDs, once the binding is completed, the corresponding function can be started, and otherwise, an error alarm can be reported. All binding can be realized by sending instructions through a human-computer interface or keys, the equipment gives fixed keys and realizes the functions of selecting similar to up, down, left, right and the like, the human-computer interaction interface is controlled in a touch screen mode, the function control is completed by touching the interface with fingers, and all instructions are sent to an internal platform to realize the quick switching and binding of different video sources to different display modules or to carry out conventional function operations such as photographing, video recording and the like.
The photographing and video recording functions are realized in the video coding and decoding module, and finally, corresponding files are generated and stored in the equipment, wherein the files comprise BMP or JPEG pictures and AVI format video files. The encoding and decoding module adopts H.264 encoding, and the dynamic adjustment of the code rate can reduce the size of a file and save storage resources while ensuring the quality of a video image. The file is stored on the TF card of the equipment, the exFAT system format is adopted, the storage space is 64G, and the size of a single file can exceed more than 4G. The device communicates with external equipment through a USB interface, the USB2.0 is supported by the interface, and the transmission rate reaches 10 MB/s. If the USB is connected to a computer, the TF card data can be directly accessed on the computer, and the video files named according to the rules can be copied to the computer for analysis and proof.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An SF6 gas leakage detection handheld device for realizing video display control is characterized by comprising: the device comprises a video acquisition module, a processing chip and a video display module;
the video acquisition module comprises an SF6 gas infrared detector and an SF6 gas visible light detector; the processing chip comprises a video processing module, a video transmission module, a human-computer interaction module, a video coding and decoding module and a file storage and transmission module; the video display module comprises an OLED display screen and an LCD display screen;
two paths of videos are collected aiming at an SF6 detection scene, one path of high-definition visible light video is collected by an SF6 gas visible light detector, one path of infrared video is collected by an SF6 gas infrared detector, the two paths of videos can be overlapped with a human-computer interaction interface designed through a human-computer interaction module and information detected by a video processing module and transmitted through the video transmission module, the video transmission module adopts a transmission mode of a binding channel, the two paths of videos are bound to an OLED display screen for display and observe the videos through an eyepiece or bound to an LCD display screen for display or bound to a video coding and decoding channel for processing through a video coding and decoding module according to an instruction sent by receiving a key or a touch screen, and finally formed videos or image files are stored on an internal storage card of the equipment through the file storage and transmission module, and can be connected with an external device to realize the communication between the device file and the external device.
2. The SF6 gas leak detection handheld device of claim 1, wherein the video acquisition module is based on a haisi platform open multi-interface video input driver to cover input requirements of various types of interfaces; and under the scene of SF6 gas leakage detection, high-definition visible light video images are collected through the SF6 gas visible light detector through one Mipi interface, thermal infrared imager images are collected through the SF6 gas infrared detector through the parallel port BT.656 interface through one channel, and the collection of two channels of video images is completed.
3. The SF6 gas leak detection handheld device of claim 2, wherein the video processing module performs character overlay, raw video image cropping, and human-machine interface overlay functions including SF6 gas leak detection related information for video input images of different resolutions.
4. The SF6 gas leak detection handheld device of claim 3, wherein the video transmission module configures the video images processed by the video processing module to different transmission channels to enable display of visible video images to the OLED display screen, display of visible video images to HDMI, display of infrared images to the OLED display screen, display of infrared images to HDMI, processing of visible video images to the video codec module, and processing of infrared images to the video codec module.
5. The SF6 gas leak detection handheld device of claim 4, wherein the human-computer interaction module performs programming development of a human-computer interaction interface through QT on one hand, and controls on an LCD display touch screen; on the other hand, the device and the display interface can be controlled through the keys, the control interface feeds back related display control information of the handheld device and an operation instruction of man-machine interaction, the related display control information and the operation instruction of man-machine interaction are overlapped with the input video in the video processing module, and finally the control can be carried out through the touch screen.
6. The SF6 gas leak detection handheld device of claim 5, wherein the video display module performs multi-interface video display driving including HDMI and LVDS interfaces, and is capable of implementing two display viewing modes, one is an eyepiece and the OLED display screen display mode, and the other is an LCD display screen display mode.
7. The SF6 gas leak detection handheld device of claim 6, wherein the video codec module selects and binds with the video transmission channel after video acquisition and processing, and performs codec processing on the acquired video image after binding is completed, enabling photographing, recording and playback functions, and enabling dynamic adjustment of code rate.
8. The SF6 gas leak detection handheld device of claim 7, wherein the file storage and transmission module is configured to store video files and transmit files to external devices, wherein file storage inside the handheld device is performed by using a TF card, and the selected external transmission interface is USB 2.0.
9. The SF6 gas leak detection handheld device of claim 8, wherein the driver development including fat32, exFAT format and corresponding USB Gadget driver development are completed under the file storage and transmission module; meanwhile, the video image processed by the video processing module is overlapped with a human-computer interface, relevant comprehensive information is transmitted to the video coding and decoding module to be coded, and finally the coded information is stored under the file storage and transmission module, wherein the stored storage medium is not less than 64G, and the size of a single file stored by adopting the TF card in the exFAT format can be larger than 4G.
10. The SF6 gas leak detection handheld device of claim 9, wherein the file storage and transmission module is capable of connecting to an external device through a USB interface, and when the file storage and transmission module is connected to the external device as a slave device, the USB interface is used to access a video file of the handheld device and transmit the video file, and an actual transmission rate reaches 10 MB/s.
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| CN202111497527.6A CN114199464A (en) | 2021-12-09 | 2021-12-09 | SF6 gas leakage detection handheld equipment for realizing video display control |
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Cited By (1)
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| CN115841486A (en) * | 2023-02-20 | 2023-03-24 | 深圳市特安电子有限公司 | Gas sensing infrared image processing method |
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