README
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