This topic describes the terms that are used in LinkVisual.
Term | Description |
instance | You can manage resources such as products, devices, and rules on IoT Platform instances. The following two types of instances are supported:
You can use Enterprise Edition instances to connect IP cameras and network video recorders to IoT Platform and process audio and video data. |
edge machine of the V series | Link IoT Edge provides edge machines of the V series (LE-V) that have high-performance computing modules to support algorithms of human shape recognition, human trajectory tracking, detection of area intrusion or occupation, and reverse image search. |
IP camera | An Internet Protocol (IP) camera is a type of network-connected digital video camera. |
NVR | A network video recorder (NVR) is a network-connected device that records videos. |
PTZ control | Pan-tilt-zoom (PTZ) control refers to remote control operations that adjust the field of view of a camera. You can pan the camera left or right, tilt the camera up or down, and zoom in or out to capture views from different angles and perspectives. |
device certificate | A device certificate consists of a ProductKey, a DeviceName, and a DeviceSecret.
Important The device certificate is required for device authentication and communication. Keep the device certificate properly for future use. |
ProductSecret | A ProductSecret is the private key that is issued by IoT Platform for each product. In most cases, a ProductSecret is used together with a ProductKey for unique-certificate-per-product authentication. Important ProductSecrets are required in device authentication. Keep the ProductSecret properly for future use. |
TSL model | IoT Platform uses Thing Specification Language (TSL) to describe device features. A TSL model defines the device properties, services, and events. TSL models use the JSON format. You can organize data based on a TSL model and submit the data to IoT Platform. |
property | A property is a TSL feature that describes the status of a device, such as the temperature information that is collected by an environmental monitoring device. Properties support the GET and SET request methods. Applications can send requests to retrieve and set properties. |
service | A service is a TSL feature that describes the capabilities or methods of a device. The capabilities or methods can be used by external requesters. You can specify the input and output parameters of a service. Compared with properties, services can be invoked by using a command to implement complex business logic. For example, you can invoke a service to perform a specific task. |
event | An event is a TSL feature that describes the runtime events of a device. An event contains a notification that requires action or attention. An event may contain multiple output parameters. For example, an event can be a notification that a task is complete, a device fault occurred, or a temperature alert is generated. You can subscribe to or push events. |
intelligent alerting | LinkVisual defines the alert events for IP cameras based on vision algorithms. The events include motion detection, illegal parking, and others. |
time template | A time template defines time segments within a week for IP cameras to record videos. After a recording plan is associated with the time template, you can associate an IP camera with the recording plan. This way, the IP camera automatically records and uploads videos to IoT Platform based on the conditions that are specified in the recording plan. |
recording plan | A recording plan defines the conditions that trigger continuous recording or intelligent alerting-specific recording. After you associate an IP camera with the recording plan, the IP camera automatically records and uploads videos to IoT Platform based on the specified conditions.
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For information about terms that are used in IoT Platform, see Terms of IoT Platform. For information about terms that are used in Link IoT Edge, see Terms of Link IoT Edge.