VisorAPI

VisorNet API provides mechanisms via three modules (ActiveX) in order to interact with the VisorNet equipment for an application developer for Windows platform. All of the functionality offered by these modules is found in a VisorNet Remote Video Monitoring Center's (from this point on Telesurveillance Station Server) applications. The operations are enumerated below and divided into modules and orientation.

ActiveX VisorEngine

System Access Group. Operations orientated towards the access control and the connection of the operators to the Telesurveillance Station Server.
Information group for Operators and System Centers. Operations orientated towards obtaining information from the remote centers.
Information group for Areas and Related Devices. Operations orientated towards obtaining information on the defined areas for remote centers.
Information Group for Customers and Services. Operations orientated towards obtaining information on the Customers in the System and the offered Services.

ActiveX ViewEngine

Local Queries Group for the Telesurveillance Station Server. Operations orientated towards the querying of saved recordings in the Telesurveillance Station Server.
Remote Queries Group for the Recordings Servers. Operations orientated to the querying of the remote recordings hosts. Permits the possibility to download recordings in the Telesurveillance Station Server.
System Access Group. Operations orientated to the access control and the connection of the operators in the Telesurveillance Station Server.

ActiveX WatchEngine

Telesurveillance Group. Operations orientated towards viewing the cameras from the equipment.
Alarms Management Group.Operations orientated to alarms handling and validation by the operators.
Control group for Serial Ports and MatrixesOperations orientated to the remote control of device serial ports and the matrixes connected to these.
Mobile Camera Control Group. Operations orientated to the control of the mobile cameras connected to the equipment. See the Appendix on the External Modules for Mobile Cameras and Matrixes Control.
Management Group for Input and Output devices.Operations orientated towards the control of the input and output devices, i.e. device activation and deactivation
System Access Group.Operations orientated towards the access control and connection of the operators to the Telesurveillance Station Server

Log mode

Information about log mode in the API can be found in Log Mode

Changes in version 6.0.0

Changes from previous versions in the API can be found in Changes

Telesurveillance Station Server Software Architecture.

The VisorNet Telesurveillance Station Server is planned on a local area network (LAN). You have a Center Server, various Center Operators and communications devices (gateways, for example routers, modems, bridges, etc.), in order to connect with the VisorNet equipment through a wide area network (WAN). This can be ISDN (Integrated Services Digital Network), Frame Relay, PSTN (Public Switching Telephone Network) or the LAN itself.

The system database is found in the Server. This receives the alarms together with their recordings from the VisorNet equipment and stores them. The Server is the storage location for the downloaded recordings from the remote recordings hosts and is also the system input point for the operators. The server integrates various services in order to carry out these operations:

Alarms Reception Service The TCP/IP service is dedicated to the reception and storage of alarms originating from the remote devices. This is listening on port 80.
Database Maintenance and Recordings Volumes Service This is a service dedicated to the maintenance of the system database, i.e. the elimination of expired alarms and recordings, freeing space due to the occupation limit in the volumes of saved recordings.
System Access Service This is the TCP/IP service dedicated to the reception of operators to the System. This is listening on port 30005.

The server can also carry out operator functions.

Attention:: VNetAPI does not provide modules for the construction of an independent Telesurveillance Station Server. The server for Telesurveillance is unique and is provided by Teldat. Any developer that wishes to use their structure and functionality should install this and configure it using the software provided by Teldat for this purpose.

The Operator has a series of modules available over which he/she carries out all their operations through the Telesurveillance Station Server. These operations are:

Telesurveillance Station Server Configuration Operations
Telesurveillance Operations
Alarm Management Operations
Recordings Query Operations
Network Monitoring Operations

Consult the reference guide VisorNet4_OperatorManual for further details on all of these operations. In order to have a Remote Video Monitoring Center Server, it is necessary to install the software provided by Teldat with the ServerSetup.exe installation program. The operator software provided by Teldat with the Setup.exe installation program is needed in order to configure this.

Attention:

As you have seen, server services are constructed over TCP/IP protocols, and use determined IP ports shown in the following table. No other application should use this range of IP ports. Video and alarm reception implies using TCP ports.

Source	Destination	Protocol/Port	Utilization
PC	VisorNet	TCP/80	Video reception and every command between operator and VisorNet or Recording Server
VisorNet	PC	TCP/80	Video alarms reception