Pelco D, Pelco P, BBV422 and Bosch (Philips PCSS), Forward Vision, Vicon, American Dynamics(Sensormatic) and Panasonic Telemetry Decoder (node-pelcod-decoder)

This module reads Pelco D, Pelco P, BBV422, Bosch(Philips PCSS), Forward Vision, Vicon, American Dynamics(Sensormatic) and Panasonic CCTV Camera Pan/Tilt/Zoom data, validates each command and decodes its meaning. The descripion of each command is written to the console.

The Pelco D, Pelco P and BBV422 commands decoded include

• Camera Number
• Pan (direction and speed)
• Tilt (direction and speed)
• Zoom (Tele/In and Wide/Out)
• Manual Focus (Near and Far)
• Manual Iris (Open and Close)
• Store Preset / Goto Preset / Clear Preset
• Set Auxiliary (Turn On) / Clear Auxiliary (Turn Off)
• Start Learning Pattern (Tour) / Stop Learning Pattern (Tour) / Run Pattern (Tour)
• Set Zoom Speed

The Bosch (Philips) commands decoded include

• Camera Number
• Op Code 5 - Start Stop Variable Speed PTZ (Pan, Tilt, Zoom, Manual Focus, Manual Iris) with Pan Speed, Tilt Speed and Zoom speed
• Op Code 7 - Aux On, Aux Off, Store Pre-Position (store preset), Goto Pre-Position (goto preset)

The Forward Vision commands decoded include

• Camera Number
• Pan (direction and speed)
• Tilt (direction and speed)
• Zoom (Tele/In and Wide/Out)
• Manual Focus (Near and Far)
• Manual Iris (Open and Close)
• Store Preset / Goto Preset
• Wiper, Washer, Lamp auxiliary On/Off
• Set Zoom Speed

The Vicon commands decoded include

• Camera Number
• Pan (direction and speed)
• Tilt (direction and speed)
• Zoom (Tele/In and Wide/Out)
• Manual Focus (Near and Far)
• Manual Iris (Open and Close)
• Goto Preset
• Auto Pan

The American Dynamics AD422/Sensormatic commands decoded include

• Camera Number
• Pan  (direction and speed)
• Tilt (direction and speed)
• Zoom (Tele/In and Wide/Out)
• Manual Focus (Near and Far)  * Manual Iris (Open and Close)
• Goto Preset Position / Target
• Store Preset Position / Target

The Panasonic commands decoded include

• Camera Number

• ASCII command string (which is not decoded at this time)

Installation

Run the following command form the command line to install the NPM package

npm install pelcod-decoder

Command Line Test Program

The command line test program is executed as

node read_serial_port.js

This opens a serial port, waits for bytes and then decodes their meaning. The following flags customise the usage

• -h help
• -l list available serial port
• -v verbose. Show raw bytes read read from serial port
• -V version
• --baud value
• --parity value (values are none,even,odd)

Baud Rates

Pelco D telemery is always 7 bytes long and always starts with 0xFF and ends with a checksum. On a Pelco KBD300A Pelco D runs at 2400 baud 8-N-1 with 4800 and 9600 also common on other installations.

Pelco P telemetry is always 8 bytes long and starts with 0xA0 and ends with 0xAF and a checksum. On a Pelco KBD300A Pelco P runs at 4800 baud 8-N-1 with 2400 and 9600 also common on other installations.

Bosch (Philips) is always 9600 baud 8-N-1

Forward Vision is always 9600 baud ODD Parity 8-O-1

The Vicon system tested ran at 9600 baud although the official speed is believed to be 4800 baud

Stream Sources

The module processes data from a NodeJS Buffer object. A small example program, read_from_serial.js, will read from a Serial Port / COM Port (using node-serial) and pass data into the CCTV PTZ telemetry decoder.

Pelco D Testing

The code has been tested with Pelco D telemetry generated by

• Official Pelco KBD300A Keyboard (Rev A0, Ver 5.7)in Direct D mode 2400 baud 8-N-1 SW1-SW8: UP-UP-UP-UP-down-UP-down-UP
• Bosch Universal Camset CCTV Engineer Tool
• Bosch VIP X1 XF encoder
• NodeJS Pelco D Generator https://github.com/Scoup/node-pelcod
• ISpyConnect http://www.ispyconnect.com/

Pelco P Testing

The code has been tested with Pelco P telemetry generated by

• Official Pelco KBD300A Keyboard (Rev A0, Ver 5.7)in Direct P mode 4800 baud 8-N-1 SW1-SW8: UP-UP-UP-UP-down-UP-UP-UP
• Bosch Universal Camset CCTV Engineer Tool
• BBV 422 PC Keyboard software
• Bosch VIP X1 XF encoder
• Sample byte strings from Commfront

Building Block Video BBV422 Testing

The code has been tested with BBV telemetry generated by

• BBV 422 PC Keyboard software

Bosch (Philips) Testing

The code has been tested with Bosch (Philips) telemetry generated by

• Bosch Universal Camset CCTV Engeering Tool
• Bosch VIP X1 XF encoder

Forward Vision Testing

The code has been tested with Forward Vision telemetry generated by

• Bosch Universal Camset CCTV Engeering Tool
• Synectics Forward Vision interface

Vicon Testing

The code has been tested with Vicon telemetry generated by

• Bosch Universal Camset CCTV Engeering Tool
• Synectics Vicon interface

American Dynamics (Sensormatic) Testing

The code has been tested with AD422 telemetry generated by

• Bosch VIP X1 XF encoder

Panasonc Testing

The code has been tested with AD422 telemetry generated by

• Bosch VIP X1 XF encoder
• Axis M7001 encoder