128 lines
3.1 KiB
JavaScript
128 lines
3.1 KiB
JavaScript
import { bytesToMac } from '../utils/hex'
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import { joinLowHigh, readUint16LE, toUint8Array } from '../utils/bytes'
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/**
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* 解析 UUID_STATE 的状态字节，转为有符号 8bit。
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*/
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export function parseStateCode(payload) {
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const bytes = toUint8Array(payload)
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if (!bytes.length) {
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return null
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}
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return bytes[0] > 127 ? bytes[0] - 256 : bytes[0]
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}
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/**
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* 解析 UUID_MSG 设备信息（ED713/ED719 通用字段优先）。
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*/
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export function parseDeviceInfo(payload) {
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const bytes = toUint8Array(payload)
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if (!bytes.length) {
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return {
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raw: bytes,
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mac: '',
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bindStatus: null,
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productId: null,
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deviceType: null,
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wifiStatus: null,
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cellularStatus: null
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}
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}
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const macBytes = bytes.slice(0, 6)
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const bindStatus = bytes.length > 6 ? bytes[6] : null
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const productId = bytes.length > 10 ? joinLowHigh(bytes[10], bytes[9]) : null
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const deviceType = bytes.length > 14 ? bytes[14] : null
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const wifiStatus = bytes.length > 15 ? bytes[15] : null
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const cellularStatus = bytes.length > 16 ? bytes[16] : null
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return {
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raw: bytes,
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mac: bytesToMac(macBytes),
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bindStatus,
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productId,
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deviceType,
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wifiStatus,
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cellularStatus,
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baseBoardVersion: bytes.length > 11 ? bytes[11] : null,
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coreBoardVersion: bytes.length > 12 ? bytes[12] : null
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}
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}
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/**
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* ED713 雷达数据解析。
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* 协议帧长度不足时返回 valid:false，交由上层决定是否忽略。
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*/
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export function parseEd713Radar(payload) {
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const bytes = toUint8Array(payload)
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if (bytes.length < 60) {
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return {
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type: 'ED713',
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valid: false,
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reason: 'LENGTH_LT_60',
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raw: bytes
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}
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}
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return {
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type: 'ED713',
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valid: true,
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raw: bytes,
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peopleCount: bytes[24],
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peopleLocalDecimeter: bytes[25],
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peopleState: bytes[26],
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heartRate: bytes[28],
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respRate: bytes[29],
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activityState: bytes[30],
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moveIndex: bytes[35],
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waveNum: bytes[37],
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respWave: Array.from(bytes.slice(38, 58)),
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narrowFlag: bytes[59]
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}
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}
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/**
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* ED719 雷达数据解析。
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* 屏蔽区数量由 shieldNum 控制，每块固定 9 字节。
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*/
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export function parseEd719Radar(payload) {
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const bytes = toUint8Array(payload)
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if (bytes.length < 24) {
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return {
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type: 'ED719',
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valid: false,
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reason: 'LENGTH_LT_24',
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raw: bytes
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}
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}
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const shieldNum = bytes[27] || 0
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const shieldStart = 28
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const shieldBlockLength = Math.min(Math.max(shieldNum, 0), 4) * 9
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return {
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type: 'ED719',
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valid: true,
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raw: bytes,
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eventState: bytes[4],
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peopleState: bytes[5],
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peopleNum: bytes[6],
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installHeight: readUint16LE(bytes, 8),
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installMode: bytes[10],
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beeperOn: bytes[11],
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leftDist: readUint16LE(bytes, 12),
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rightDist: readUint16LE(bytes, 14),
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frontDist: readUint16LE(bytes, 16),
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backDist: readUint16LE(bytes, 18),
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sensitive: bytes[20],
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stateDelay: readUint16LE(bytes, 22),
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shieldNum,
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shieldZoneRaw: Array.from(bytes.slice(shieldStart, shieldStart + shieldBlockLength)),
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wallOption: bytes[shieldStart + shieldBlockLength] ?? null
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}
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}
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