Howen devices (dashcams / MDVRs) configuration commands (via SMS or GPRS).
{
"CommandType": "40A0",
"Command": {
"ss": "timezone_set",
"sc": {
"clock": {
"timezone": "120"
}
}
}
}
{
"CommandType": "40A0",
"Command": {
"ss": "mobile_network",
"sc": {
"dialup": {
"apn": "internet",
"servercode": "*99#",
"user": "user",
"passwd": "pass"
}
}
}
}
{
"CommandType": "40A0",
"Command": {
"ss": "reporting_server",
"sc": {
"server": {
"server1": {
"mainip": "dev.gpsiot.net",
"mainport": "8933"
}
},
"jtbase": {
"protocol2": "2",
"gpsinterval2": "30",
"enable": "1"
}
}
}
}
File Upload via FTP (0x4091)
{
"CommandType": "4091",
"Command": {
"ss": "ftp_upload",
"fn": "/mnt/snap_1.jpg",
"srv": "ftp.server.com:21",
"user": "ftpuser",
"pwd": "ftppass"
}
}
{
"CommandType": "40A0",
"Command": {
"ss": "update_speed",
"sc": {
"speed": {
"source": "0"
}
}
}
}
{ "CommandType": "4102", "Command": { "ss": "restart" } }
{ "CommandType": "4103", "Command": { "ss": "factory_reset" } }
{
"CommandType": "4090",
"Command": {
"ss": "fw_upgrade",
"act": "1",
"ft": "8",
"fn": "firmware.bin",
"srv": "your.server.com:21"
}
}
{ "CommandType": "4109", "Command": { "ss": "format", "disk": "sd1" } }
{ "CommandType": "410D", "Command": { "ss": "log_request" } }
{ "CommandType": "410E", "Command": { "ss": "reset_mileage" } }
{ "CommandType": "4040", "Command": { "ss": "gps_sub", "ct": "65535", "rt": "0" } }
{ "CommandType": "40A0", "Command": { "ss": "gps_opt", "sc": { "switch": "1" } } }
{ "CommandType": "40A0", "Command": { "ss": "force_gps" } }
Query External Module (OBD, Fuel, TPMS) (0x4160)
{ "CommandType": "4160", "Command": { "ss": "query_module", "module": "OBD" } }
Satellite Modem Query
{ "CommandType": "4160", "Command": { "ss": "sat_modem_status" } }
{ "CommandType": "4050", "Command": { "ss": "alarm_sub", "ct": "65535" } }
{ "CommandType": "4106", "Command": { "ss": "clear_alarm" } }
{
"CommandType": "40A0",
"Command": {
"ss": "alarm_settings",
"sc": {
"overspeed": { "limit": "100", "duration": "10" }
}
}
}
{
"CommandType": "4090",
"Command": {
"ss": "geo_conf",
"ft": "6",
"fn": "geofence.config",
"srv": "your.server.com:21",
"act": "1"
}
}
{
"CommandType": "40A0",
"Command": {
"ss": "alarm_settings",
"sc": {
"overspeed": {
"limit": "100",
"duration": "10"
}
}
}
}
Parking / Idle Alarm
{
"CommandType": "40A0",
"Command": {
"ss": "alarm_settings",
"sc": {
"parking": {
"time": "300"
}
}
}
}
Vibration Alarm
{
"CommandType": "40A0",
"Command": {
"ss": "alarm_settings",
"sc": {
"vibration": {
"sensitivity": "3"
}
}
}
}
{ "CommandType": "4020", "Command": { "ss": "abcd1234", "cl": "1;2;3", "res": "2" } }
{
"CommandType": "4010",
"Command": {
"ss": "live_1234_01_00",
"si": "1",
"on": "1",
"fl": "1;2;3",
"srv": "your.server.com:9000",
"ch": "1"
}
}
{
"CommandType": "4070",
"Command": {
"ss": "play_1234_01",
"ch": "1",
"st": "2025-10-01 08:00:00",
"et": "2025-10-01 09:00:00"
}
}
{
"CommandType": "4071",
"Command": { "ss": "play_1234_01", "ctrl": "pause" }
}
{
"CommandType": "4030",
"Command": {
"ss": "voice_1234_01",
"ch": "1",
"wm": "1",
"srv": "your.server.com:9000"
}
}
{
"CommandType": "410F",
"Command": { "ss": "tts", "text": "Engine is ON, drive safely" }
}
{
"CommandType": "410C",
"Command": { "ss": "send_sms", "number": "0712345678", "text": "Test alert" }
}
{ "CommandType": "4107", "Command": { "ss": "vehicle_ctrl", "ctrl": "lock" } }
{ "CommandType": "410B", "Command": { "ss": "osd_speed", "switch": "1" } }
{ "CommandType": "410A", "Command": { "ss": "gsensor_calibrate" } }
Alcohol Detection Module Control (0x40A0)
{
"CommandType": "40A0",
"Command": {
"ss": "alarm_settings",
"sc": {
"alcohol": {
"snapshot": {
"enable": "1",
"channels": "2",
"count": "3",
"interval": "1"
},
"record": {
"enable": "1",
"channels": "2",
"pre_time": "10",
"post_time": "20"
}
}
}
}
}
}
File Search (0x4060)
{ "CommandType": "4060", "Command": { "ss": "file_search", "ft": "1" } }
Driver Info Sync (0x40A0 / 0x4180 family)
{
"CommandType": "40A0",
"Command": {
"ss": "driver_info",
"sc": {
"driver": { "name": "John Doe", "card": "1234567890" }
}
}
}