1、 GPS828 Product Overview

1.1 GPS828 Diagram

Product Name: GPS828

Product model: HJKD-GPS828

Working voltage: [DC: 9V-36V]

Positioning method: GPS/Beidou/GLONASS

Communication method: GSM/GPRS four frequency communication

1.2 GPS828 Overview

GPS828 is developed with corresponding functions based on the NXP platform. GPS828 has made many functional extensions on the basis of basic positioning products, which can meet the accessory function needs of customers in different industries. The external interface of the terminal is only configured with 2 RS485 or RS232 interfaces, so the terminal can only be equipped with up to 2 types of bus type accessories at the same time (supporting the combination of two different bus type accessories according to specific needs)

The product has stable performance, and all core components are purchased with original matching materials to ensure and improve product performance. This type of product is mainly used forLogistics vehicle industryIt can achieve the positioning of logistics vehicles, container tailgate detection, fuel monitoring, trajectory and route monitoring of logistics vehicles, real-time monitoring of tailgate cargo, photography and monitoring of corresponding vehicle conditions, temperature monitoring, etc.Taxi industryLED screen advertising, photography, monitoring, and call dispatch screen information release, call, and SMS functions.Concrete industry:Forward and reverse rotation detection, oil level detection, vehicle positioning, and trajectory monitoring of concrete tanks.Sanitation vehicles:Support the integration of navigation screens to achieve functions such as voice scheduling, calling, SMS broadcasting, navigation, and following routes.Other industries:According to the needs of different industries, accessories can be freely matched, and customized development of different accessory function applications is supported.

2、 GPS828 configuration

2.1 [Standard Configuration]

1. One HJKD-GPS828 host (with built-in battery)

2. One 6-core power cord and one 6-core detection long cord each

3. One GSM antenna

4. One GPS antenna or BD/GPS antenna

5. One manual and one warranty card each

2.2 [Optional Configuration]

1. Lock car relay

2. Mi Tou

3. Speaker

4. Serial port camera (up to 4 channels per host)

5. Velcro

6. LCD scheduling screen or controller

7. Forward and reverse rotation sensor

8. Buzzer

3、 GPS828 installation

3.1 GPS828 Wiring Diagram

3.2 GPS828 Debugging Process

3.2.1 Vehicle wiring

According to the wire information defined in Figures 4.1 and 4.2, connect the signal that needs to be connected to the corresponding signal wire of the vehicle. The red power positive, black power negative, and white ACC wires in the 6-core power cord are mandatory connections, and other signals should be connected according to customer requirements. Connect the GSM antenna and GPS antenna.

3.2.2 SIM card installation

Open the back panel of the terminal, insert the prepared SIM card into the SIM card slot, and then confirm that the SIM card buckle is in place. Please ensure that the SIM card has enabled GPRS function in advance and know the SIM card number.

3.2.3 Wiring and powering on

After completing the above tasks, the corresponding connecting wires can be connected to the corresponding interface of the terminal to power on the terminal. Observing the LCD screen or LED lights, after the terminal is powered on normally, the battery switch can be adjusted to the ON position to ensure that the built-in battery is available.

3.2.4 Parameter Setting

1. Local machine number setting

Note: If the terminal has a built-in ID number (with an 11 digit ID number label attached to the terminal interface), there is no need to set the local ID number, skip this step.

For example, if the terminal SIM card number is:, use LCD or mobile phone to write: * 77 * # and send it to the terminal. The terminal will reply with 'Success', indicating successful setting.

2. IP port settings

For example, if the client's server IP is 119.155.40.64 and port number is 8881, then use LCD or mobile phone to write: * 88 * 1119155040064 * 8881 #. The terminal will reply: success, then the setting is successful.

3. TCP/UDP connection mode settings

For example, the client's server IP is 119.155.40.64 and port number is 8881. If it is a TCP connection method, use LCD or mobile phone to write: * 88 * 1119155040064 * 8881 * 1 #; If it is a UDP connection method, write: * 88 * 1119155040064 * 8881 * 0 #. The terminal will reply: success, then the setting is successful.

4.2.5 Terminal Debugging

After completing the above parameter settings, the terminal can connect to the client server and then observe the LCD screen to see if the corresponding information exists and is correct. After confirming that all information is correct, the terminal can be installed and secured.

GPS828 function

1standard features

1 [Positioning Function]

1.1 Positioning 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.

1.2 Regular monitoring

The car GPS terminal can set a certain time or time period, or at certain time intervals, to send the vehicle's location and status information to the monitoring center.

1.3 Blind Spot Compensation

When entering the GPRS blind spot, the terminal will save trajectory data at a minimum interval of 30 seconds, and upload the blind spot data to the platform when GPRS is re launched. Up to 7000 blind spot compensation data can be saved.

1.4 Curve compensation

When the vehicle enters a bend, if the terminal detects a certain angle deviation in the driving direction (default 30 degrees), it will add a timed feedback message to ensure a more accurate driving trajectory.

1.5 Base station positioning

The terminal defaults to using GPS positioning. When GPS enters a blind spot and cannot accurately locate, the terminal automatically switches to base station positioning. The terminal obtains base station information every 30 seconds and uploads it. The specific location is parsed by the server.

2、 [Alarm Function]

2.1 Emergency alarm

Including host fault prompts, emergency assistance, main power failure prompts, access range prompts, etc. After pressing the concealed installation alarm button, the monitoring center immediately receives vehicle alarm information, mainly used for vehicle anti-theft, emergency needs and other operations.

2.2 Overspeed alarm and 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.

2.3 Main power failure alarm

When the main battery of the vehicle is damaged or unable to provide power, the built-in backup power supply can maintain the system's continued operation and send a power failure alarm to the monitoring center.

2.4 Displacement alarm

The terminal supports setting displacement alarm function and setting displacement radius. After turning off the engine for 10 seconds, it automatically enters the displacement detection state. If the terminal moves out of the boundary in the off state, it will report a displacement alarm. This function is turned off by default at the factory and can be enabled via SMS.

2.5 Low voltage alarm

When the battery voltage in the car is too low (0-10V or 15-20V), the onboard terminal reports a low voltage alarm to the monitoring center and cuts off the main power supply to protect the battery.

3、 Intelligent Function

3.1 Heartbeat feedback

The GPS car terminal can set a timed heartbeat feedback time. If no other information is sent during this period, a heartbeat feedback message will be sent to the monitoring center to keep the terminal online in real time.

3.2 Intelligent self check

The vehicle terminal can perform self diagnosis, and once a fault occurs, it will send a fault notification to the center, such as GPS, GSM, etc., and 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 Intelligent remote control

Remote control of vehicle locking, unlocking, and resolving terminal abnormal states through the central systemAfter receiving instructions, the onboard terminal will perform corresponding operations on the vehicle's circuit or oil system, and send a power-off/oil confirmation message back to the center, while also uploading the current vehicle status. Once the vehicle receives the command to disconnect the electric/oil circuit, the onboard terminal will remember the status until the center issues a recovery command.

3.4 Emergency Monitoring

When the monitoring center receives an emergency alarm, it can activate the monitoring function to monitor the situation inside the vehicle.

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.

3.6 Remote Settings

Set various parameters of the terminal remotely through the central system, including IP, center number, various monitoring parameters, etc.

3.3.7 Car battery protection

The host has high and low voltage protection, main power reverse connection protection, power-saving status, etc., which can ensure that the car battery will not be affected or damaged by the host.

3.3.8 Remote Upgrade

As long as the GPRS status is available, the terminal software upgrade can be completed remotely wirelessly.

3.3.9 SMS Operation

The terminal can use regular SMS to set parameters and check the working status of the terminal, which is convenient for terminal maintenance.

3.3.10 SMS car check, phone car check

The terminal can set the car owner's number, which can be used for remote SMS car search; When there is an abnormality in the vehicle, the terminal will actively send a message to the owner through this number to issue a reminder.

3.3.11 短信通知

The terminal can set the car owner's number, and when the terminal generates an alarm, specific information, including a Google link, will be sent to that number.

3.3.12 Dual IP or Dual Domain Names

The terminal supports dual IP connections between the primary server and the backup server. By default, it connects to the primary server. If there is a problem with the primary server, it automatically switches to the backup server. The primary server and backup server can be set in two ways: IP or domain name.

2、 Optional features

4. Advertising publishing function

Users can operate LED advertising for taxis, passenger vehicles, and engineering vehicles. By installing and using this system, users can remotely manage and synchronize advertising information on LED screens. The backend system can manage and set up customer information, advertising information, advertising schedules, release dates, and release time points for advertising clients. The system can complete advertising publishing and management, and the development of the system platform can reach the advanced level of the same industry in China. Through LED advertising management, corresponding operating profits can be obtained.

5 [Image Monitoring Function]

Users can implement image monitoring function as needed, which is particularly prominent in the application of passenger vehicles. Through GPS monitoring, the real-time status of vehicles can be remotely managed. Through image monitoring, the transportation situation inside the vehicle can be understood in real time, which has played a positive and effective role in solving the problem of "three excesses" for management departments. At the same time, it effectively reduces road traffic accidents and ensures transportation safety.

6 [Communication Management]

The terminal can be connected to an external LCD, car phone, etc. to achieve telephone functions, fully hands-free communication, and can set various call restrictions, such as dialing and answering restrictions, allowing partial call restrictions, etc; Wireless data communication can be achieved with the central system through GPRS or CDMA.

7 [Oil level detection function]

The terminal can transmit the real-time fuel consumption value of the vehicle to the backend center system, which will process it and provide detailed fuel consumption information and curves, as well as record refueling and fuel theft records. At the same time, the terminal can automatically detect abnormal decreases and increases in vehicle fuel levels, and transmit real-time data to the backend central system for monitoring.

7.1 Voltage type oil level sensor

The terminal can be connected to an external voltage type fuel level sensor or the original vehicle fuel level signal line to detect the fuel level value of the vehicle.

7.2 Capacitive oil level sensor

The terminal can be connected to an external capacitive fuel sensor to detect the real-time fuel level of the vehicle. The capacitive oil level sensor can choose RS485 interface or RS232 interface.

7.3 Ultrasonic oil level sensor

The terminal can be connected to an external ultrasonic fuel sensor to detect the real-time fuel level of the vehicle; The main characteristics of ultrasonic oil level sensors are easy installation and maintenance, and no need for drilling.

8 [Forward and Reverse Rotation Detection]

For the application of concrete mixer trucks, the terminal can be externally connected with forward and reverse sensors to detect the three states of forward rotation, reverse rotation, and stop rotation of the mixer truck. The terminal can upload real-time forward and reverse status, making it convenient for managers to monitor the usage of vehicles. For operations that do not follow the prescribed time and location, real-time awareness can be obtained to prevent violations. At the same time, the monitoring platform can classify historical data, analyze reports, and facilitate management.

9 [Security Function]

The terminal has security alarm function and supports original vehicle anti-theft. Need to connect the ACC, vehicle alarm horn, and door edge lines. The terminal detects the above three vehicle signals. When ACC is closed, doors are closed, and there is no alarm signal, the terminal automatically enters the defense state after 20 seconds. When ACC is open or the door is open, and the terminal does not detect an alarm signal within 5 seconds, the terminal will be disarmed. When the ACC is open or the door is open, and the terminal detects an alarm signal within 5 seconds, the terminal reports a theft alarm to the platform and can also send an alarm message to the set car owner's phone number.

10 [Sound Warning]

The terminal can be equipped with a buzzer, which can provide an audible warning when the terminal is in an overspeed alarm or other alarm state.

【 Attention 】】The external interface of the terminal is only configured with 2 RS485 or RS232 interfaces, so the terminal can only be equipped with a maximum of 2 types of bus type accessories. For example, both LCD and camera can be selected simultaneously (up to 4 cameras can be selected); LCD and LED can be selected simultaneously (LED is a non exclusive RS232 interface); It can be equipped with both a camera and an LED (the LED interface needs to be specially treated as an LCD interface).

GPS828 parameters

1、 【 Machine Parameters 】

2、 Communication module

3、 GPS module

4、 Beidou module