3.1 Basic functions-Positioning function

3.1.1Positioning monitoring

Including functions such as timed feedback, blind spot compensation, speed and mileage statistics, and area monitoring,The system issues positioning instructions, and the terminal sends back data containing longitude, latitude, speed, direction, and status information.

3.1.2Regular monitoring

in-vehicleGPSThe terminal can set a certain time or time period, or at certain intervals, to send the location and status information of the vehicle to the monitoring center.

3.1.3Blind spot compensation

The terminal is enteringGPRSWhen there is a blind spot, it will be the shortest30SSave trajectory data at regular intervalsGPRSWhen going back online, blind spot data will be uploaded to the platform. Blind spot compensation data can be saved at most8000Article.

3.1.4Curve compensation

When the vehicle enters a bend, the terminal detects a certain angle deviation in the direction of travel(default30degree)An additional timed feedback message will be added to ensure a more accurate driving trajectory.

3.1.5Base station positioning

Default use of terminalGPSPositioning, whenGPSWhen entering a blind spot and unable to accurately locate, the terminal automatically switches to base station positioning, and the terminal every30SRetrieve base station information once, upload base station information, and the specific location will be parsed by the server.

3.1.6 AGPS

The terminal is equipped withAGPSFunction, when the terminal is connectedGPRSAfterwards, it can be usedAGPSFunction, speed upGPSImprove the positioning speed and accuracy of the module.

3.1.7 Main voltage detection

The terminal can detect the main voltage in real time and report it to the background at any time.

3.1.8 ACC detection

The terminal can detect vehicles in real-timeACC status, it is recommended to connect the ACC line as much as possible during installation. The terminal can improve the static drift suppression effect through the cooperation of ACC and G-Sensor, and the trajectory data will be more perfect.

3.2 Basic functions-Alarm function

3.2.1Low voltage alarm(Only applicable to 12V/24V batteries)

When the battery voltage in the car is too low(0-10Vor16-20V)The vehicle terminal reports a low voltage alarm to the monitoring center.

3.2.2Overspeed alarm, low-speed alarm

When the vehicle speed exceeds the overspeed alarm value, the onboard terminal will notify the monitoring center. Similarly, when the vehicle speed is below the low-speed alarm value, a low-speed alarm will be reported to the monitoring center. The alarm value can be set.

3.2.3Abnormal alarm of positioning module

When the host detectsGPS/BDReport to the monitoring center when the module is working abnormallyGPSReceiver malfunction alarm.

3.2.4 Interference detection alarm

The host can actively monitor external signal interference, and detect positioning signal interference and communication signal interference separately; When the positioning signal is detected to be interfered by external interference sources, the host will immediately report an interference detection alarm; When the host detectsWhen the GSM signal is interfered with, the device is generally unable to complete GPRS communication. The host will record the interference situation and upload the interference record after connecting to GPRS.

3.2.5 Main power failure alarm

The host is equipped with a lithium battery. When the main power voltage drops, the host automatically switches to lithium battery power supply and reports a main power failure alarm. Backup lithium battery can support the operation of the hostAbout an hour.

3.3 Basic functions-Intelligent functions

3.3.1Smart Stay

The host has built-in high sensitivityG-sensorAcceleration sensors can monitor in real-time whether the vehicle is in motion. When no motion is detected for a long time, the host automatically enters a power-saving state and shuts downGPS/BDModule, at the same timeGSMEntering the heartbeat feedback state, the device has extremely low power consumption, which can greatly reduce the loss of the vehicle battery.

3.3.2Intelligent self check

The in vehicle terminal can perform self diagnosis, and once a fault occurs, it will send a fault notification to the center, such asGPSTheGSMWait and be able to automatically take relevant measures. The monitoring center can also query the current model, version, configuration, operating status, and device functions of the terminal.

3.3.3Static drift suppression

Built in hosthigh sensitivityG-sensorAcceleration sensor and a complete set of positioning data filtering algorithms can filter out most of the static drift data, ensuringGPSAccuracy of data.

3.3.4 Smart Remote

Remote control of vehicle locking, unlocking, and resolving terminal abnormal states through the central systemAfter receiving instructions, the vehicle terminal will perform corresponding operations on the vehicle circuit or oil circuit, and transmit a power outage to the center/Confirm the oil information and upload the current vehicle status at the same time. Once the vehicle receives electricity/After the oil circuit disconnection command, the onboard terminal will remember the status until the center issues a recovery command.

3.3.5 Mileage Statistics

The vehicle mileage data is transmitted back to the monitoring center along with the vehicle positioning data; The initial mileage can be set during vehicle installation.

3.3.6 Remote Settings

Set various parameters of the terminal remotely through the central system, includingIPCenter number, various monitoring parameters, etc.

3.3.7 remote upgrade

The terminal only needsGPRSIf the status is available, the terminal software upgrade can be completed remotely wirelessly.

3.3.8 doubleIPOr dual domain names

The terminal supports dual primary and backup serversIPConnection, default connection to the primary server. If there is a problem with the primary server, it will automatically switch to the backup server. The primary server and backup server canIPOr set the domain name in two ways.

3.3.9 Standard Agreement Version

Terminal factory selectableJTT808Standard protocol, applicable to all platforms that support standard protocols

2.1 【 Machine Parameters 】

2.2 Communication module parameters/CDMA】

2.3 Beidou positioning parameters