Privacy Policy
BPM Battery Protector Isolator V3.2.0
生效日期 / Effective Date: 2026-06-06
本应用由个人开发者运营：
本应用由李嘉根（以下简称"我们"）开发。我们深知个人信息对您的重要性。本隐私政策旨在向您说明我们如何通过 BPM电瓶保护隔离器 移动应用（以下简称"本应用"）处理您的信息。
This App is developed and operated by Li Jiagen ("we", "us"), an individual developer. We understand the importance of personal information. This Privacy Policy explains how we handle information through the BPM Battery Protector Isolator mobile application (the "App").
本应用仅申请以下必要权限，不获取通讯录、定位、相册、短信、通话记录等其他无关权限：
The App only requests the following essential permissions. It does not access contacts, precise location, photo album, SMS, call logs, or other irrelevant permissions:
我们不收集任何个人信息。本应用是纯本地控制工具，所有设备数据（设备名称、连接密码、设置参数、电压电流温度数据）仅保存在您的手机本地存储中，不会上传至任何服务器，不对外共享。
We do not collect any personal information. This App is a local-only control tool. All device data (device names, connection passwords, settings, voltage/current/temperature data) is stored solely on your phone's local storage, never uploaded to any server, and never shared externally.
所有设备电压、电量、温度、设置参数等数据仅保存在用户本机手机本地存储中，不上传任何服务器，不对外共享任何数据。卸载应用后所有数据将被自动清除。
All device data (voltage, battery level, temperature, settings) is stored only locally on the user's device. No data is uploaded to any server or shared with third parties. All data is automatically deleted when the App is uninstalled.
本应用申请以下系统权限，仅用于实现核心功能：
The App requests the following system permissions solely for core functionality:
本应用使用以下第三方服务：
The App uses the following third-party services:
本 APP 未接入任何第三方统计、广告、支付、推送 SDK，无第三方收集用户信息行为。
This App does not integrate any third-party analytics, advertising, payment, or push notification SDKs. No third party collects user information through this App.
本应用无需注册登录，不存在个人账户体系，因此无账号注销流程。如需清除本地缓存数据，可在手机系统设置 — 应用管理 — 删除应用数据即可。
This App does not require registration or login, and there is no user account system. Therefore, there is no account deletion process. To clear local cached data, go to System Settings → App Management → Clear App Data.
我们高度重视您的数据安全，采取以下措施保护您的信息安全：
We take data security seriously and implement the following measures to protect your information:
本应用与 BPM 硬件设备之间采用 PIN 码配对认证机制。首次连接设备需输入设备预设 PIN 码进行身份验证，验证通过后 PIN 码加密存储在本地，后续连接自动完成双向认证，防止未授权设备接入。
The App uses a PIN-based pairing authentication mechanism with BPM hardware devices. First-time connection requires entering the device's preset PIN for identity verification. Once verified, the PIN is stored encrypted locally, and subsequent connections automatically complete mutual authentication to prevent unauthorized device access.
蓝牙通信：采用 BLE 4.0/5.0 标准 AES-CCM 加密传输，确保设备数据在无线传输过程中不被窃听或篡改。
MQTT 通信：使用 WSS（WebSocket Secure over TLS 1.2+）加密协议，证书由可信 CA 签发，保障远程数据传输的机密性和完整性。
本地存储：设备配置数据使用 Android 系统级加密存储（EncryptedSharedPreferences / 应用沙箱隔离），仅本应用有权访问。
Bluetooth: Uses BLE 4.0/5.0 standard AES-CCM encryption to ensure device data is not eavesdropped or tampered with during wireless transmission.
MQTT: Uses WSS (WebSocket Secure over TLS 1.2+) encrypted protocol with certificates issued by trusted CAs to ensure confidentiality and integrity of remote data transmission.
Local Storage: Device configuration data uses Android system-level encrypted storage (EncryptedSharedPreferences / app sandbox isolation), accessible only by this App.
应用层：本应用通过 Android 系统沙箱机制实现应用间隔离，其他应用无法访问本应用的本地数据。
系统层：遵循 Android 最小权限原则，仅申请蓝牙、网络、位置（BLE 扫描所需）三项权限，不申请通讯录、短信、存储等无关敏感权限。
设备层：BPM 硬件设备同一时间仅允许一个客户端连接，防止多客户端并发控制导致的数据冲突。
App Level: The App uses Android sandbox mechanism for inter-app isolation; other apps cannot access this App's local data.
System Level: Follows Android principle of least privilege, only requesting Bluetooth, Internet, and Location (required for BLE scanning) permissions. Does not request unrelated sensitive permissions such as Contacts, SMS, or Storage.
Device Level: BPM hardware devices allow only one client connection at a time, preventing data conflicts from concurrent multi-client control.
本应用通过 Google Play 和应用商店官方渠道分发，所有安装包均经过代码签名（RSA-2048 / SHA-256），用户可通过数字签名验证安装包完整性和来源真实性。应用不包含任何动态加载代码、热更新、代码注入等可能引入恶意代码的技术手段。
This App is distributed through Google Play and official app store channels. All installation packages are code-signed (RSA-2048 / SHA-256), allowing users to verify package integrity and source authenticity via digital signature. The App does not employ dynamic code loading, hot updates, code injection, or any other techniques that could introduce malicious code.
我们定期对应用进行安全审查，包括但不限于：蓝牙通信协议安全性验证、MQTT 传输加密合规检查、权限使用合理性审查、第三方依赖库漏洞扫描。每次版本更新均进行安全回归测试，确保新增功能不引入安全隐患。
We conduct regular security reviews of the App, including but not limited to: Bluetooth communication protocol security verification, MQTT transport encryption compliance checks, permission usage reasonableness reviews, and third-party dependency vulnerability scanning. Each version update undergoes security regression testing to ensure new features do not introduce security risks.
本应用不收集用户浏览、偏好信息，无用户画像构建功能，无个性化内容推送功能，不启用个性化推荐，不展示任何定向广告。
This App does not collect browsing or preference data, does not build user profiles, does not provide personalized content recommendations, and does not display any targeted advertising.
本软件面向汽车设备使用者，不面向 14 周岁以下儿童，不会故意收集 14 周岁以下儿童的任何个人信息。
This software is intended for vehicle equipment users. It is not directed to children under 14. We do not knowingly collect any personal information from children under 14.
我们可能会更新本隐私政策。更新后的政策将在本页面发布并立即生效。
We may update this Privacy Policy. Updated policies will be posted on this page and take effect immediately.
如对本隐私政策有任何疑问，请通过以下方式联系：
If you have any questions about this Privacy Policy, please contact: