Audio and video and security system debugging tool - VISA conference camera/PTZ gimbal/ONVIF/smart speaker/security monitoring

1, Protocol isolation between audio and video and security systems

Conference system, Video surveillance, Smart home audio and video are in the automation industryMaximum diversity of protocolsThe field. VISCAControl the camera, PELCO-D/PControl the gimbal, ONVIFManage cameras, Serial protocol controls projectors and amplifiers——Each device has its own "dialect".

modbusdebugging assistant" that provides 5 audio, video, and security debugging tools, integrates multiple protocols on the same platform.

2. Conference camera debugging, VISCAdeveloped by Sony

VISCA (Video System Control Architecture) camera control protocolwidely used in video conference cameras such as Sony, series (HuaweiEVI/BRCseries, Hikvision conference cameras, etc.VPCprotocol foundation, running on) .

2.1 VISCAserial port

VISCAbaud rateRS-232/RS-422message format (among them9600, 8N1) , camera address: 0x8X QQ RR ... 0xFF, command categoryX=command parameters, QQ=terminator, RR=commonly used command category, FF=horizontal/vertical rotation.

speed+direction:

• 0x01: Pan-Tilt (left/right/stop) —— Panspeed+direction (up/down/stop) , Tiltzoom (zoom)
• 0x04: Zoom (zoom) —— Tele (zoom out) /Wide (focus) /Stop
• 0x01 0x04: Focus (preset position) —— Far/Near/Auto Focus
• 0x06 0x01: number preset position (Preset) —— Set/Call 0-89exposure/white balance, etc. Image parameters
• 0x09 0x06: tool functions

2.2 directional control panel

• touch cross directional key control: adjustablePTZ, Speedlevel common (1-24level speed18zoom push-pull)
• slider or button control: Tele/Widepreset position management
• one click storage/retrieval: Number preset position0-89Add commonly used preset positions to the shortcut bar, Advanced parameters
• Backlight compensation: White Balance Mode, White Balance Mode, Exposure compensation, Gain, Shutter speed
• Multiple camera selection: InVISCASwitching and controlling cameras with different addresses in the daisy chain
• Sending the original command: Manually enter hexadecimalVISCACommand, Used for testing non-standard extension commands

Three, PTZPTZ debugging tool

PTZ (Pan-Tilt-Zoom) Yuntai is a common device in the fields of security and broadcasting. And withVISCADifferent, PTZYuntai is commonly usedPELCO-D/PELCO-PWaiting for industrial agreements, ThroughRS-485Bus control.

3.1 PELCO-Dagreement

Frame format: 0xFF 地址 命令1 命令2 数据1 数据2 校验和 (7Byte)
Baud rate: 2400/4800/9600bps, Address1-255, Checksum=Command1+Command2+data The lower 8 bits of data 21+Supported commands.

Up/down/left/right/top left/bottom left/top right/bottom right/stop: Doubling, Doubling+/stop it-/Focus, Focus+/stop it-/Aperture, Aperture+/stop it-/Set preset position/call preset position/clear preset position, Automatic scanning/frame scanning/cruise control, Four.

Home theater debugging assistant, face

Smart home audio and video systemIntegrated debugging toolsSupport multiple audio and video device protocols, Projector control:

• Serial port control: RS232Switching on and off of branded projectorsEPSON/BenQ/OptomaInput source switching, Power amplifier control
• AVSerial port: Control/IPWaiting for the power amplifier to turn on and offDenon/Marantz/Yamaha/PioneerVolume, Input source, Sound effect mode, Time series power management
• Switch on and off audio and video devices in sequence: Switch on and off audio and video devices in sequence (Prevent the power amplifier from experiencing surge current during startup)
• Scene mode: Movie viewing mode/music mode/game mode/KSong mode——One click switching of device status and parameters

Five, Intelligent speaker debugging assistant

in the light ofSmart speaker/background music hostDebugging tools:

• DLNAScreen casting/push notifications: Scan the networkDLNARenderer (loudspeaker box) , Push audioURLPlay on the designated speaker
• AirPlayDiscovery: Scan the networkAirPlayEquipment
• Volume/equalizer control: Volume+/-, EQPreset (Pop/Rock/Classical/Jazz/Custom)
• Partition management: Multi room music sharing, Divide different speakers into different playback areas
• Alarm clock/timed playback: Set timed music, Like every morning8:00Automatically play light music

Six, Security monitoring debugging assistant

Core debugging tools for security systems:

• NVR/DVRconnect: ThroughONVIFOr connect the brand's private protocol to the network video recorder
• Camera parameter configuration: resolving power, Frame rate, Bit rate, Encoding format (H.264/H.265)
• Motion detection configuration: Set detection area, Sensitivity, Alarm linkage (Capture/record/push notifications)
• Alarm input/output: Configure alarm inputs such as infrared radiation/door magnets/emergency buttons, Linkage lights/alarm signals and other outputs
• Video occlusion/video loss detection: Configure video anomaly detection parameters

Seven, Summary

The diversity of protocols and device heterogeneity in audio, video, and security systems determine the great value of "multi in one" debugging tools. 5The tool covers camera control, PTZ control, Full scene integration of home theater and security monitoring.

Open WeChat search modbusDebugging Assistant ", Portable tool kit for audio and video security engineers.

🎯 All tools described in this article are free to use in WeChat mini programs

Open WeChat → Click on the top search button → Input modbusDebugging Assistant " → Enter the mini program.
No need to downloadAPP, No registration or login required, No need for a computer——70+ Industrial control debugging tool, Just take out your phone and you can use it.

Whether you are on the construction site, During business trips, Still studying at home, modbusDebugging assistants are all industrial automation debugging workstations that you carry with you.