CN109963091B - Video channel switching method, switching terminal and system - Google Patents
Video channel switching method, switching terminal and system Download PDFInfo
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- CN109963091B CN109963091B CN201910244651.8A CN201910244651A CN109963091B CN 109963091 B CN109963091 B CN 109963091B CN 201910244651 A CN201910244651 A CN 201910244651A CN 109963091 B CN109963091 B CN 109963091B
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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
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Circuits (AREA)
Abstract
The invention provides a video channel switching method, a switching terminal and a system, wherein an upper computer is in communication connection with the switching terminal; the upper computer is connected with the on-site video and audio equipment through a switching terminal; the upper computer sends a switching control instruction to the switching terminal; and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information. Therefore, the remote control of the field video and audio equipment is realized, the field video and audio equipment can be switched according to the monitoring requirement, and the target video and audio data information can be acquired. The user does not need to operate the computer switcher locally to switch the video channel, the use range is expanded through the operation of the upper computer, the user can operate the KVM switcher conveniently, the switching is adjusted in real time according to actual needs, and the actual needs are met.
Description
Technical Field
The present invention relates to the field of video processing technologies, and in particular, to a video channel switching method, a switching terminal, and a system.
Background
A KVM switch (english: KVM switch), generally abbreviated as KVM, is a computer device that enables a user to control a plurality of computers through a set of keyboard, display and mouse.
The formal name of a KVM switch is KVM switch or KVM SWITCH. Simply speaking, a KVM switch allows a system administrator to control multiple servers or computer peripherals of a computer host through a set of keyboard, display and mouse, which means that only one person is needed to interact with all the computers, and certainly only one computer at a time. The switcher can save the expenses of a plurality of keyboards and displays and can also vacate larger desktop space.
At present, the KVM switch is mainly used based on local switching, and a user operates the computer switch locally to switch a video channel, so that the limited application range is limited, and in some areas where the KVM switch is arranged at a higher position or where the user cannot operate, the user cannot operate the KVM switch, and further cannot switch videos, and the use is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a video channel switching method, which comprises the following steps:
the upper computer establishes communication connection with the switching terminal;
the upper computer is connected with the on-site video and audio equipment through a switching terminal;
the upper computer acquires video and audio data information shot by the on-site video and audio equipment;
the upper computer sends a switching control instruction to the switching terminal;
and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information.
It should be further noted that the upper computer configures a switching control signal queue;
the upper computer sends a switching control instruction to the switching control signal queue;
the switching control signal queue sends a switching control instruction to the switching terminal in a first-in first-out order;
and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information.
It is further noted that the upper computer binds the monitoring area code with the on-site video and audio equipment;
the upper computer sends a monitoring sequence instruction and a monitoring duration corresponding to each monitoring area to the switching terminal;
and the switching terminal monitors each monitoring area according to the monitoring sequence instruction and the monitoring duration corresponding to each monitoring area.
The invention provides a switching terminal, comprising: the system comprises a singlechip and an expansion module;
the single chip microcomputer is connected with the expansion module through an I2C pin;
the single chip microcomputer is respectively connected with an indicator light, a mouse, a keyboard and a display screen through GPIO pins;
the expansion module is provided with a plurality of GPIO pins;
the single chip microcomputer is connected with a plurality of field video and audio equipment through the extension module;
the single chip microcomputer is provided with a TTL232 interface, a register, a code editing port and a USB interface.
The singlechip adopts a C8052F340 series singlechip;
the expansion module employs PCA9555 PW.
The invention provides a video channel switching system, comprising: the system comprises an upper computer, a switching terminal and field video and audio equipment arranged in a monitoring area;
the singlechip of the video channel switching equipment is in communication connection with the upper computer through an RS232 interface and a USB interface;
the upper computer is used for connecting the field video and audio equipment through the switching terminal;
the upper computer acquires video and audio data information shot by the on-site video and audio equipment;
the upper computer sends a switching control instruction to the switching terminal;
and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information.
According to the technical scheme, the invention has the following advantages:
the upper computer is connected with the on-site video and audio equipment through a switching terminal; the upper computer sends a switching control instruction to the switching terminal; and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information. Therefore, the remote control of the field video and audio equipment is realized, the field video and audio equipment can be switched according to the monitoring requirement, and the target video and audio data information can be acquired.
The user does not need to operate the computer switcher locally to switch the video channel, the use range is expanded through the operation of the upper computer, the user can operate the KVM switcher conveniently, the switching is adjusted in real time according to actual needs, and the actual needs are met.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a flow chart of a video channel switching method;
FIG. 2 is a flow chart of an embodiment of a method for switching video channels;
FIG. 3 is a flow chart of an embodiment of a method for switching video channels;
fig. 4 is a schematic diagram of a video channel switching system.
Detailed Description
The invention provides a video channel switching method, as shown in fig. 1, the method comprises:
s11, establishing communication connection between the upper computer and the switching terminal;
the switching terminal can be installed in a monitoring room of a monitoring site and can also be arranged in a monitoring center. And the switching terminal is respectively connected with each on-site video and audio device.
S12, connecting the upper computer with the on-site video and audio equipment through the switching terminal;
s13, the upper computer acquires the video and audio data information shot by the on-site video and audio equipment;
s14, the upper computer sends a switching control instruction to the switching terminal;
and S15, the switching terminal executes a switching control instruction, switches to the target switching field video and audio equipment, and enables the upper computer to acquire target video and audio data information.
The switching control instruction obtained by the upper computer can be input by monitoring personnel in real time for monitoring. Or the upper computer automatically runs based on the presetting. Or the switching control instruction can be executed based on timing, and the switching control instruction is executed every time a period of time passes, so that the monitoring requirement is met.
The specific application scene can be traffic road conditions, production process monitoring, mine monitoring, power distribution area monitoring and the like.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The real-time method provided by the invention further comprises the following steps: as shown in figure 2 of the drawings, in which,
s21, configuring a switching control signal queue by the upper computer;
here, a series of monitoring switching signals is performed, and a switching control signal queue is configured in order to enable automatic switching. The switching sequence is preset by monitoring personnel and is configured in a switching control signal queue to realize automatic operation.
S22, the upper computer sends a switching control instruction to the switching control signal queue;
s23, the switching control signal queue sends switching control instructions to the switching terminal in the order of first-in first-out;
and S24, the switching terminal executes a switching control instruction, switches to the target switching field video and audio equipment, and enables the upper computer to acquire target video and audio data information.
The real-time method provided by the invention further comprises the following steps: as shown in fig. 3, the upper computer binds the monitoring area code with the on-site video/audio device; the upper computer sends a monitoring sequence instruction and a monitoring duration corresponding to each monitoring area to the switching terminal; and the switching terminal monitors each monitoring area according to the monitoring sequence instruction and the monitoring duration corresponding to each monitoring area.
Generally, the monitoring area is a plurality of areas, in order to obtain information of each monitoring area and facilitate configuration of switching control instructions, the monitoring area is configured into a unique code, and the monitoring area code is bound with the on-site video and audio equipment, so that the corresponding switching control instructions can be executed through the monitoring area code, and the switching has certain pertinence.
In the monitoring process, if the video and audio data information cannot be transmitted to the upper computer by switching to a certain field video and audio device, after the preset time length, the upper computer does not acquire the video and audio data information transmitted by the field video and audio device, and the upper computer sends a switching control instruction to the switching terminal to be switched and connected to the next field video and audio device to acquire the video and audio data information. Thus switching to the next live audio-video device. Meanwhile, the upper computer sends out an alarm prompt to prompt maintenance personnel to timely handle the problem equipment.
The techniques described herein may be implemented in hardware, software, firmware, or any combination thereof. Various features are described as modules, units or components that may be implemented together in an integrated logic device or separately as discrete but interoperable logic devices or other hardware devices. In some cases, various features of an electronic circuit may be implemented as one or more integrated circuit devices, such as an integrated circuit chip or chipset.
If implemented in hardware, the invention relates to an apparatus, which may be, for example, a processor or an integrated circuit device, such as an integrated circuit chip or chipset. Alternatively or additionally, if implemented in software or firmware, the techniques may implement a data storage medium readable at least in part by a computer, comprising instructions that when executed cause a processor to perform one or more of the above-described methods. For example, a computer-readable data storage medium may store instructions that are executed, such as by a processor.
The present invention also provides a handover terminal, as shown in fig. 4, including: the system comprises a singlechip 1 and an expansion module 3; the single chip microcomputer 1 is connected with the expansion module 3 through an I2C pin; the single chip microcomputer 1 is respectively connected with an indicator lamp 5, a mouse 7, a keyboard 6 and a display screen 4 through GPIO pins; the expansion module 3 is configured with a plurality of GPIO pins; the single chip microcomputer 1 is connected with a plurality of field video and audio equipment through an extension module 3; the singlechip 1 is provided with a TTL232 interface, a register, a code editing port and a USB interface. The singlechip 1 adopts a C8052F340 series singlechip; the expansion module 3 employs PCA9555 PW.
The single chip 1 may be software and/or firmware executed by processing circuitry including one or more processors, such as one or more Digital Signal Processors (DSPs), general purpose microprocessors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other equivalent integrated or discrete logic circuitry. Thus, the term "processor," as used herein, may refer to any of the foregoing structure or any other structure more suitable for implementing the techniques described herein. In addition, in some aspects, the functionality described in this disclosure may be provided in software modules and hardware modules.
Based on the method related by the invention, the invention also provides a video channel switching system, which comprises the following steps: the system comprises an upper computer 1, a switching terminal and field video and audio equipment arranged in a monitoring area;
the singlechip of the video channel switching equipment is in communication connection with the upper computer through an RS232 interface and a USB interface; the upper computer is used for connecting the field video and audio equipment through the switching terminal; the upper computer acquires video and audio data information shot by the on-site video and audio equipment; the upper computer sends a switching control instruction to the switching terminal; and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information.
In the system related to the invention, the upper computer is also used for configuring a switching control signal queue and configuring the switching control signal queue to the switching terminal; the upper computer sends a switching control instruction to the switching control signal queue; the switching control signal queue sends a switching control instruction to the switching terminal in a first-in first-out order; and the switching terminal executes a switching control instruction and switches to the target switching field video and audio equipment, so that the upper computer acquires target video and audio data information.
In the system related by the invention, the upper computer is also used for coding each monitoring area and binding the monitoring area codes with the on-site video and audio equipment; the monitoring system is also used for configuring the monitoring duration corresponding to each monitoring area; the upper computer sends a monitoring sequence instruction and a monitoring duration corresponding to each monitoring area to the switching terminal; and the switching terminal monitors each monitoring area according to the monitoring sequence instruction and the monitoring duration corresponding to each monitoring area.
In the system related to the invention, the upper computer is also used for establishing communication connection with the current on-site video and audio equipment through the switching terminal; and after the preset time length, when the upper computer does not acquire the video and audio data information transmitted by the on-site video and audio equipment, the upper computer sends a switching control instruction to the switching terminal, and the switching terminal is switched and connected to the next on-site video and audio equipment to acquire the video and audio data information.
Therefore, the singlechip of the switching terminal writes an I2C interface and controls the action of the extended GPIO pin through the bus. All key actions and key mouse behaviors enter an interrupt processing program through interrupt triggering, data processing is carried out by the single chip microcomputer, then whether a data packet which needs to be sent to an upper computer exists or not is checked through clock beats, and signals are transmitted through corresponding interfaces.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A method for switching video channels, the method comprising:
the upper computer establishes communication connection with the switching terminal;
the upper computer is connected with the on-site video and audio equipment through a switching terminal;
the upper computer acquires video and audio data information shot by the on-site video and audio equipment;
the upper computer sends a switching control instruction to the switching terminal;
the switching terminal executes a switching control instruction, switches to target switching field video and audio equipment, and enables an upper computer to acquire target video and audio data information;
the method further comprises the following steps:
the upper computer is provided with a switching control signal queue;
the upper computer sends a switching control instruction to the switching control signal queue;
the switching control signal queue sends a switching control instruction to the switching terminal in a first-in first-out order;
the switching terminal executes a switching control instruction, switches to target switching field video and audio equipment, and enables an upper computer to acquire target video and audio data information;
the method further comprises the following steps:
the upper computer binds the monitoring area code with the on-site video and audio equipment;
the upper computer sends a monitoring sequence instruction and a monitoring duration corresponding to each monitoring area to the switching terminal;
the switching terminal monitors each monitoring area according to the monitoring sequence instruction and the monitoring duration corresponding to each monitoring area;
the method further comprises the following steps:
the upper computer establishes communication connection with the current on-site video and audio equipment through the switching terminal;
and after the preset time length, when the upper computer does not acquire the video and audio data information transmitted by the on-site video and audio equipment, the upper computer sends a switching control instruction to the switching terminal, and the switching terminal is switched and connected to the next on-site video and audio equipment to acquire the video and audio data information.
2. A video channel switching system, comprising: the system comprises an upper computer, a switching terminal and field video and audio equipment arranged in a monitoring area;
the singlechip of the video channel switching equipment is in communication connection with the upper computer through an RS232 interface and a USB interface;
the upper computer is used for connecting the field video and audio equipment through the switching terminal;
the upper computer acquires video and audio data information shot by the on-site video and audio equipment;
the upper computer sends a switching control instruction to the switching terminal;
the switching terminal executes a switching control instruction, switches to target switching field video and audio equipment, and enables an upper computer to acquire target video and audio data information;
the upper computer is also used for configuring a switching control signal queue and configuring the switching control signal queue to a switching terminal;
the upper computer sends a switching control instruction to the switching control signal queue;
the switching control signal queue sends a switching control instruction to the switching terminal in a first-in first-out order;
the switching terminal executes a switching control instruction, switches to target switching field video and audio equipment, and enables an upper computer to acquire target video and audio data information;
the upper computer is also used for coding each monitoring area and binding the monitoring area codes with the on-site video and audio equipment; the monitoring system is also used for configuring the monitoring duration corresponding to each monitoring area;
the upper computer sends a monitoring sequence instruction and a monitoring duration corresponding to each monitoring area to the switching terminal;
the switching terminal monitors each monitoring area according to the monitoring sequence instruction and the monitoring duration corresponding to each monitoring area;
the upper computer is also used for establishing communication connection with the current on-site video and audio equipment through the switching terminal;
and after the preset time length, when the upper computer does not acquire the video and audio data information transmitted by the on-site video and audio equipment, the upper computer sends a switching control instruction to the switching terminal, and the switching terminal is switched and connected to the next on-site video and audio equipment to acquire the video and audio data information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910244651.8A CN109963091B (en) | 2019-03-28 | 2019-03-28 | Video channel switching method, switching terminal and system |
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| CN201910244651.8A CN109963091B (en) | 2019-03-28 | 2019-03-28 | Video channel switching method, switching terminal and system |
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| CN109963091A CN109963091A (en) | 2019-07-02 |
| CN109963091B true CN109963091B (en) | 2021-06-04 |
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| CN113534988B (en) * | 2021-06-28 | 2024-03-01 | 深圳爱特天翔科技有限公司 | Control method and device of KVM system and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1081952A2 (en) * | 1999-08-30 | 2001-03-07 | Matsushita Electric Industrial Co., Ltd. | Video monitoring equipment |
| CN101527825A (en) * | 2009-04-14 | 2009-09-09 | 郭松 | Monitoring system |
| CN101873439A (en) * | 2010-01-20 | 2010-10-27 | 杭州海康威视数字技术股份有限公司 | Method, system and decoder for switching monitoring channel |
| CN102739981A (en) * | 2011-04-06 | 2012-10-17 | 捷达世软件（深圳）有限公司 | Video switch control method and system thereof |
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2019
- 2019-03-28 CN CN201910244651.8A patent/CN109963091B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1081952A2 (en) * | 1999-08-30 | 2001-03-07 | Matsushita Electric Industrial Co., Ltd. | Video monitoring equipment |
| CN101527825A (en) * | 2009-04-14 | 2009-09-09 | 郭松 | Monitoring system |
| CN101873439A (en) * | 2010-01-20 | 2010-10-27 | 杭州海康威视数字技术股份有限公司 | Method, system and decoder for switching monitoring channel |
| CN102739981A (en) * | 2011-04-06 | 2012-10-17 | 捷达世软件（深圳）有限公司 | Video switch control method and system thereof |
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