CAN-Control 技术支持与帮助
最后更新：2026 年 9 月 12 日
CAN-Control 是一款用于连接、监控与配置 CAN 总线设备的应用，支持通过蓝牙连接现场设备，也支持通过 4G 网络远程监控设备状态、修改运行参数与升级固件。其中 4G 远程功能仅限 4G 版本设备，蓝牙版本设备仅支持本地连接。
联系我们
为便于我们快速定位问题，反馈时建议一并提供：设备 ID、设备固件版本、手机型号与系统版本、问题发生时间，以及可复现的操作步骤。
常见问题
1. 搜索不到蓝牙设备
- 请确认设备已上电，且蓝牙指示灯处于闪烁状态。
- 确认手机系统设置中已授予本应用蓝牙权限；部分安卓机型还需开启定位权限（系统限制，蓝牙扫描依赖定位开关）。
- 如设备已被其他手机连接，请先在对方设备上断开。
- 尝试关闭再重新打开手机蓝牙后重试。
2. 蓝牙连上了但读不到数据
- 请确认 App 中选择的设备协议类型与实际硬件一致（不同电源模块与充电设备的协议不同）。
- 在设备界面下拉刷新，或退出设备页后重新进入。
- 如仍无数据，请提供设备 ID 与固件版本，我们协助排查。
3. 设备显示离线
- 确认设备已插入可用的 4G 流量卡且信号正常。
- 设备在信号较弱处可能频繁上下线，属正常现象，可观察一段时间。
- 如长时间离线，请现场确认设备供电与指示灯状态。
4. 定位不生效 / 位置为空
- 位置功能需要定位权限，请在系统设置中授予。
- 设备侧定位依赖 GPS 信号，室内、地下车库等环境可能无法获取，此时会退化为基站定位或暂无位置。
- 手机端定位是在您主动操作时通过蓝牙写入设备的，需要手机与设备保持蓝牙连接。
5. 固件升级失败
- 升级过程中请保持设备供电与网络稳定，不要中途断电或关闭 App。
- 升级完成后设备会自动重启，重启期间短暂离线属正常现象。
- 如升级中断导致设备无法正常启动，请联系技术支持获取恢复方法。
6. 如何解绑或转移设备
在 App 内进入该设备的管理页面，选择“解除绑定”即可。解绑后设备可由其他账号重新绑定。
7. 如何注销账号
在 App 内「我的 → 设置 → 注销账号」自助完成注销；也可以发送邮件至 cxjdwx@foxmail.com 提出申请，我们将在核实身份后 15 个工作日内处理。
账号注销后不可恢复。若您有正在使用中的设备，建议先解除绑定或将设备转移给其他账号，以免影响后续使用。
8. 忘记密码
在登录页点击「忘记密码」，按提示通过注册邮箱重置。
权限与隐私
本应用仅申请实现功能所必需的权限：蓝牙（连接设备）、位置（设备定位）、相册与相机（设置界面背景或设备图标）、通知（设备告警与升级提醒）。您可以随时在系统设置中关闭任一权限。
关于我们如何处理您的信息，请阅读 《CAN-Control 隐私政策》。
CAN-Control is an application for connecting to, monitoring and configuring CAN bus devices. It supports connecting to on-site devices over Bluetooth, and also remote monitoring of device status, changing operating parameters and upgrading firmware over a 4G network. The 4G remote features are available on 4G-enabled models only; Bluetooth-only models support a local connection.
Contact Us
To help us diagnose the problem quickly, please include: the device ID, the device firmware version, your phone model and OS version, the time the problem occurred, and the steps to reproduce it.
FAQ
1. No Bluetooth devices found
- Make sure the device is powered on and its Bluetooth indicator is blinking.
- Make sure the Application has been granted Bluetooth permission in your phone's Settings; some Android models also require location permission (a system restriction — Bluetooth scanning depends on the location switch).
- If the device is already connected to another phone, disconnect it there first.
- Try turning your phone's Bluetooth off and back on, then search again.
2. Connected over Bluetooth but no data
- Make sure the device protocol type selected in the Application matches the actual hardware (different power modules and charging devices use different protocols).
- Pull down on the device screen to refresh, or leave the device page and enter it again.
- If there is still no data, send us the device ID and firmware version and we will help investigate.
3. Device shows as offline
- Make sure the device has a working 4G SIM card inserted and has good signal.
- In weak-signal locations the device may go online and offline frequently; this is normal, so observe it for a while.
- If it stays offline for a long time, check the device's power supply and indicator lights on site.
4. Location not working / empty
- The location feature requires location permission; please grant it in your system settings.
- Device-side positioning relies on a GPS signal, which may be unavailable indoors or in underground car parks; in that case it falls back to cell-tower positioning or shows no location.
- Phone-side positioning is written to the device over Bluetooth only when you actively request it, and requires the phone to stay connected to the device over Bluetooth.
5. Firmware upgrade failed
- During the upgrade keep the device powered and the network stable — do not cut power or close the Application midway.
- The device restarts automatically when the upgrade finishes; a brief offline period during the restart is normal.
- If an interrupted upgrade leaves the device unable to start, contact support for recovery instructions.
6. How to unbind or transfer a device
Open the device's management page in the Application and choose “Unbind”. After unbinding, the device can be bound again by another account.
7. How to close your account
Use “Me → Settings → Delete Account” in the Application to close it yourself; you may also email cxjdwx@foxmail.com to request closure. We will process it within 15 business days after verifying your identity.
Account closure is irreversible. If you have devices in active use, we recommend unbinding them or transferring them to another account first so that your subsequent use is not affected.
8. Forgot password
Tap “Forgot password” on the sign-in screen and follow the prompts to reset it via your registered email address.
Permissions & Privacy
This Application requests only the permissions required for its features: Bluetooth (connecting to devices), Location (device positioning), Photo album and Camera (setting the interface background or a device icon), and Notifications (device alerts and upgrade reminders). You can turn off any permission at any time in your system settings.
To learn how we handle your information, please read the CAN-Control Privacy Policy.