Solution background：

Solution overview：

  EHIGH personnel positioning system of coal mining, drawing on UWB positioning technology, obtains accurate position of coal mining workers in real time through deploying certain positioning base stations in mine, and labelling workers with positioning tags, with accuracy reaching 10cm.

  The system integrates wellhead uniqueness detection device to carry out card-free detection, multi-card detection and substitute card detection. It can track the real-time position of coal mining workers and vehicles, getting a full grasp of their motion trails. Moreover, with electronic fence, the personnel positioning system of coal mining is able to realize both regional population statistics and dangerous area control. Meanwhile, it can link gas sensor, dust sensor and other sensors for environmental monitoring, and issue two-way alarm in case of emergency to improve the accident response rate. Its intelligent inspection function enables appraisal management of personnel inspection work, standardizing the inspection procedure. 

Case videos：

       With the increasingly higher requirements of China for safe production in coal mines, the upgrading and transformation of “Six Major Systems” of mine has been proposed. Meanwhile, the coal mining personnel positioning system also faces an upgrade from regional positioning to precise positioning.

Positioning scheme：

Docking solution of integrated hardware：

| 3D real-time position display

Overview mode：

◆ Cast an overview to the position of workers at different heights, quiackly and visually grasp the situation of the site.

◆ People at different heights are marked in different colors. 

◆ Maps of different heights are displayed in a rough figure in the overview to clearly distinguish the map location.

layering display：

◆ The map at each layer can be viewed independently, and information such as personal name, planning area and the tag list are presented on the page.

◆ Support tag retrieval, issuance of paging and evacuation area delimitation. 

◆ Long-term storage of personnel motion trails provides the basis for decision-making in tackling incidents.

◆ The motion trails of a person/vehicle within a specified period of time can be played back according to the card number or the specific area.

| 2D real-time position display

◆ Display personnel position in the 3D model. 

◆ Support all functions played in 2D map.

◆ Support video linkage. 

| electronic fence

| Static electronic fence

◆ Combine the needs of user industry to set electronic fence, and define each part of the electronic fence area in the map.

◆ Provide various rule types, including entry only/ deny-entry only/ leaving only/ deny-leaving only/ timeout in the area / immobile in the area / disappearing in the area/ gathering alarms.

| Dynamic electronic fence

◆ Hazard source setting: bind a specific card as the hazard source card, and an alarm will be issued when other positioning cards approach (the range can be set). Meanwhile, the card close to the hazard source will also issue an alarm promptly.

◆ Accompany setting: there must be an accompanying person (with accompany card) within the certain area oaround the person being accompanied (with accompanied card). There can be more than one accompanying person, and as long as any one of them are within the range, the system will not issue an alarm. Otherwise, the system will issue an alarm.

◆ Group-leaving alarm: if the distance between any two people (with positioning tag card) in a group exceeds the set value, the system will automatically issue an alarm.

| Video linkage

◆ Select a tag for video linkage, the footage of this camera will be presented. 

◆ If the tag enters the area covered by another camera, the system will automatically switch to another camera.

Advantages of integrated solution：

Precise positioning

the positioning precision exceeds 0.3m,which meets the requirements of the national standard for underground precise positioning.

Complete solution

provide a complete solution which includes all parts, from device terminal to positioning engine, and to the basic functional module

MA Certification

the core hardware module meets GB3836 explosion-proof requirement, and the system meets AQ6201 standard

| Use of map

◆ Add and modify different scene buildings. 

◆ Add, delete, modify and check the floors of each building, upload and modify the floor maps.

◆ Support kml, png, jpg, json and other map formats.

| Use of camera

◆ Add and modify cameras for video linkage. 

◆ Delimit the coverage of camera.

| Alarm management

◆ SDK interface provides various alarms: electronic fence warning, call records, SOS records, and abnormal situation of equipment.

Uniqueness detection

domestic exclusive alarm device of multi-card detection and substitute card detection

       In this integrated solution of coal mining, EHIGH mainly provides positioning base stations / positioning base station modules, positioning tags / positioning tag modules, while integrators mainly provide flameproof power supply and optical fiber switch.

| Docking of base station

| Docking of positioning modules

| Docking of positioning tags

EHIGH provides the complete machine and PCB modules of positioning tag. 

Docking solution of software：

      In this integrated solution of coal mine, EHIGH provides a complete interface for business logic of application, so as to quickly fulfill business software development.

      The equipment management interface and the positioning engine need to be docked with the transmission completed by integrator, for which, the structure of TCP/IP and server as positioning base station is suggested to adopt.

Major functions of SDK interface：

| Track playback