158 lines
4.5 KiB
JavaScript
158 lines
4.5 KiB
JavaScript
import {bytesToHex, bytesToMac} from '../utils/hex'
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import {joinLowHigh, readUint16LE, toUint8Array} from '../utils/bytes'
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import {DEVICE_PROFILE} from '../protocols/profiles'
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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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* ED713 MSG 解析。
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* 文档布局：MAC(6) + bindStatus(1) + 其它(3) + productId_H(1) + productId_L(1)
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* + baseBoard(1) + coreBoard(1) + 其它(2) + deviceType(1)
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* + wifiStatus(1) + cellularStatus(1) + 其它(1)
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*/
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function parseEd713DeviceInfo(bytes) {
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if (!bytes.length) {
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return {
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raw: bytes, mac: '', bindStatus: null, productId: null,
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deviceType: null, wifiStatus: null, cellularStatus: null
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}
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}
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return {
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raw: bytes,
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mac: bytesToMac(bytes.slice(0, 6)),
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bindStatus: bytes.length > 6 ? bytes[6] : null,
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productId: bytes.length > 11 ? joinLowHigh(bytes[11], bytes[10]) : null,
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baseBoardVersion: bytes.length > 12 ? bytes[12] : null,
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coreBoardVersion: bytes.length > 13 ? bytes[13] : null,
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deviceType: bytes.length > 16 ? bytes[16] : null,
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wifiStatus: bytes.length > 17 ? bytes[17] : null,
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cellularStatus: bytes.length > 18 ? bytes[18] : null
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}
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}
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/**
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* ED719 MSG 解析。
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* 实际偏移与 ED713 一致（文档省略了 bindStatus/productId 但底板数据布局相同）：
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* MAC(6) + bindStatus(1) + 其它(3) + productId_H(1) + productId_L(1)
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* + baseBoard(1) + coreBoard(1) + 其它(2) + deviceType(1)
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* + wifiStatus(1) + cellularStatus(1) + 其它(1)
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*/
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function parseEd719DeviceInfo(bytes) {
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return parseEd713DeviceInfo(bytes)
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}
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/**
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* 解析 UUID_MSG 设备信息（按 profile 区分 ED713/ED719）。
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*/
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export function parseDeviceInfo(payload, profileId = DEVICE_PROFILE.UNKNOWN) {
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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, mac: '', bindStatus: null, productId: null,
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deviceType: null, wifiStatus: null, cellularStatus: null
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}
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}
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if (profileId === DEVICE_PROFILE.ED713) return parseEd713DeviceInfo(bytes)
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if (profileId === DEVICE_PROFILE.ED719) return parseEd719DeviceInfo(bytes)
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// UNKNOWN：按 ED713 布局兼容
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return parseEd713DeviceInfo(bytes)
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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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* 按文档结构体定义：
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* header[4] + event(1) + people(1) + num(1) + nodata(1)
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* + height(2) + mode(1) + beeper(1) + left(2) + right(2) + front(2) + back(2)
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* + sensitive(1) + nodata1(1) + stateDelay(2) = 24 bytes
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* shield_num 在 offset 24，屏蔽区在 offset 25
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* 屏蔽区之后：wallOption + peopleHaveSwitch + peopleActivitySwitch
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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[24] || 0
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const shieldStart = 25
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const shieldBlockLength = Math.min(Math.max(shieldNum, 0), 4) * 9
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const wallOffset = shieldStart + shieldBlockLength
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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[wallOffset] ?? null,
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peopleHaveSwitch: bytes[wallOffset + 1] ?? null,
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peopleActivitySwitch: bytes[wallOffset + 2] ?? null
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}
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}
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