camera.ui Node SDK

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@camera.ui/sdk / sensor / ObjectSensor

Class: ObjectSensor<TStorage> ​

Defined in: sensor/object.ts:74

Object detection sensor that reports detected objects (person, vehicle, animal, etc.).

Plugin authors call reportDetections(list) to push detection results. detected and labels are auto-derived from the detection list.

Extends ​

  • Sensor<ObjectSensorProperties, TStorage>

Extended by ​

Type Parameters ​

TStorage ​

TStorage extends object = Record<string, any>

Constructors ​

Constructor ​

new ObjectSensor<TStorage>(name?, options?): ObjectSensor<TStorage>

Defined in: sensor/object.ts:80

Parameters ​

name? ​

string = 'Object Sensor'

options? ​

SensorOptions

Returns ​

ObjectSensor<TStorage>

Overrides ​

Sensor.constructor

Properties ​

category ​

readonly category: Sensor = SensorCategory.Sensor

Defined in: sensor/object.ts:76

Overrides ​

Sensor.category

name ​

readonly name: string

Defined in: sensor/base.ts:223

Inherited from ​

Sensor.name

onAssignmentChanged ​

readonly onAssignmentChanged: Observable<readonly string[]>

Defined in: sensor/base.ts:250

Inherited from ​

Sensor.onAssignmentChanged

onCapabilitiesChanged ​

readonly onCapabilitiesChanged: Observable<string[]>

Defined in: sensor/base.ts:242

Inherited from ​

Sensor.onCapabilitiesChanged

onConnectedChanged ​

readonly onConnectedChanged: Observable<boolean>

Defined in: sensor/base.ts:252

Inherited from ​

Sensor.onConnectedChanged

onPropertyChanged ​

readonly onPropertyChanged: Observable<PropertyChangeOf<ObjectSensorProperties>>

Defined in: sensor/base.ts:240

Inherited from ​

Sensor.onPropertyChanged

type ​

readonly type: Object = SensorType.Object

Defined in: sensor/object.ts:75

Overrides ​

Sensor.type

Accessors ​

assignedCameraIds ​

Get Signature ​

get assignedCameraIds(): readonly string[]

Defined in: sensor/base.ts:293

Returns ​

readonly string[]

Inherited from ​

Sensor.assignedCameraIds

assignmentLocked ​

Get Signature ​

get assignmentLocked(): boolean

Defined in: sensor/base.ts:297

Returns ​

boolean

Inherited from ​

Sensor.assignmentLocked

capabilities ​

Get Signature ​

get capabilities(): TCapability[]

Defined in: sensor/base.ts:316

Returns ​

TCapability[]

Set Signature ​

set capabilities(value): void

Defined in: sensor/base.ts:321

Set capabilities, deduplicated, and notify backend plus local listeners.

Parameters ​
value ​

TCapability[]

Returns ​

void

Inherited from ​

Sensor.capabilities

connected ​

Get Signature ​

get connected(): boolean

Defined in: sensor/base.ts:289

Returns ​

boolean

Inherited from ​

Sensor.connected

detected ​

Get Signature ​

get detected(): boolean

Defined in: sensor/object.ts:90

Returns ​

boolean

detections ​

Get Signature ​

get detections(): TrackedDetection[]

Defined in: sensor/object.ts:94

Returns ​

TrackedDetection[]

displayName ​

Get Signature ​

get displayName(): string

Defined in: sensor/base.ts:281

Returns ​

string

Inherited from ​

Sensor.displayName

id ​

Get Signature ​

get id(): string

Defined in: sensor/base.ts:269

Returns ​

string

Inherited from ​

Sensor.id

isAssigned ​

Get Signature ​

get isAssigned(): boolean

Defined in: sensor/base.ts:285

Returns ​

boolean

Inherited from ​

VibrationSensor.isAssigned

labels ​

Get Signature ​

get labels(): ("motion" | "audio" | "person" | "vehicle" | "animal")[]

Defined in: sensor/object.ts:98

Returns ​

("motion" | "audio" | "person" | "vehicle" | "animal")[]

nativeId ​

Get Signature ​

get nativeId(): string | undefined

Defined in: sensor/base.ts:273

Returns ​

string | undefined

Inherited from ​

Sensor.nativeId

origin ​

Get Signature ​

get origin(): string | undefined

Defined in: sensor/base.ts:277

Returns ​

string | undefined

Inherited from ​

VibrationSensor.origin

pluginId ​

Get Signature ​

get pluginId(): string | undefined

Defined in: sensor/base.ts:301

Returns ​

string | undefined

Inherited from ​

Sensor.pluginId

props ​

Get Signature ​

get protected props(): Readonly<TProperties>

Defined in: sensor/base.ts:546

Returns ​

Readonly<TProperties>

Inherited from ​

Sensor.props

storage ​

Get Signature ​

get storage(): DeviceStorage<TStorage>

Defined in: sensor/base.ts:305

Returns ​

DeviceStorage<TStorage>

Inherited from ​

Sensor.storage

storageSchema ​

Get Signature ​

get storageSchema(): JsonSchema[]

Defined in: sensor/base.ts:312

Returns ​

JsonSchema[]

Inherited from ​

VibrationSensor.storageSchema

Methods ​

clearDetections() ​

clearDetections(): void

Defined in: sensor/object.ts:145

Explicitly clear detection state (detected = false, detections = [], labels = []).

Returns ​

void

Example ​

ts
sensor.clearDetections();

getValue() ​

Call Signature ​

getValue<K>(property): ObjectSensorProperties[K] | undefined

Defined in: sensor/base.ts:345

Get the current value of a sensor property. Calling the generic overload with a property enum value gives a properly typed result.

Type Parameters ​
K ​

K extends keyof ObjectSensorProperties

Parameters ​
property ​

K

Returns ​

ObjectSensorProperties[K] | undefined

Inherited from ​

Sensor.getValue

Call Signature ​

getValue(property): unknown

Defined in: sensor/base.ts:346

Get the current value of a sensor property. Calling the generic overload with a property enum value gives a properly typed result.

Parameters ​
property ​

string

Returns ​

unknown

Inherited from ​

Sensor.getValue

getValues() ​

getValues(): Readonly<TProperties>

Defined in: sensor/base.ts:362

Get a read-only snapshot of all property values.

Returns ​

Readonly<TProperties>

Shallow copy of every property currently held by the sensor.

Example ​

ts
const snapshot = sensor.getValues();
console.log(snapshot);

Inherited from ​

Sensor.getValues

hasCapability() ​

hasCapability(capability): boolean

Defined in: sensor/base.ts:388

Check whether the sensor advertises a capability.

Parameters ​

capability ​

string

Capability flag to look for.

Returns ​

boolean

True if the sensor currently advertises it.

Example ​

ts
const dimmable = sensor.hasCapability('brightness');

Inherited from ​

Sensor.hasCapability

onStart() ​

protected onStart(): void | Promise<void>

Defined in: sensor/base.ts:651

Lifecycle hook, called once the sensor is registered and live (storage and RPC are wired up). Override it to start work whose lifetime matches the sensor's: polling loops, event subscriptions, timers.

Errors thrown here are swallowed, not logged. Handle failures inside the override. Paired 1:1 with onStop, which runs on removal, plugin shutdown or cleanup.

Returns ​

void | Promise<void>

Example ​

ts
protected override onStart(): void {
  this._timer = setInterval(() => this.poll(), 5_000);
}

Inherited from ​

Sensor.onStart

onStop() ​

protected onStop(): void | Promise<void>

Defined in: sensor/base.ts:664

Counterpart of onStart: tear down whatever it started, such as timers, subscriptions and external resources.

Returns ​

void | Promise<void>

Example ​

ts
protected override onStop(): void {
  if (this._timer) clearInterval(this._timer);
}

Inherited from ​

Sensor.onStop

reportDetections() ​

reportDetections(detected, detections?): void

Defined in: sensor/object.ts:127

Report detected objects. Auto-derives detected and labels from the list.

  • reportDetections(true): something detected without specific data. The SDK synthesizes a single full-frame 'motion' detection as a generic fallback.
  • reportDetections(true, [...]): explicit detections (typical case).
  • reportDetections(false): clear.

Parameters ​

detected ​

boolean

Whether any object is currently detected.

detections? ​

TrackedDetection[]

Optional explicit object detections (with optional tracking metadata).

Returns ​

void

Example ​

ts
import type { TrackedDetection } from '@camera.ui/sdk';
sensor.reportDetections(true, [
  {
    label: 'person',
    confidence: 0.92,
    box: { x: 0.1, y: 0.2, width: 0.3, height: 0.4 },
  } satisfies TrackedDetection,
]);
sensor.reportDetections(false);

setDisplayName() ​

setDisplayName(value): void

Defined in: sensor/base.ts:337

Set the display name (the only mutable identifier on a sensor).

Parameters ​

value ​

string

Human-readable label shown in the UI.

Returns ​

void

Example ​

ts
sensor.setDisplayName('Front Door Motion');

Inherited from ​

Sensor.setDisplayName

updateModelSpec() ​

updateModelSpec(): void

Defined in: sensor/base.ts:565

Re-announces the model spec, e.g. once the models finished loading.

The spec a detector reports at registration is what it knows at that moment: models that load in the background are missing from it. Call this after loading, the server replaces its copy.

Returns ​

void

Example ​

typescript
async onStart(): Promise<void> {
  await this.loadModel();
  this.updateModelSpec();
}

Inherited from ​

Sensor.updateModelSpec