Zirgy personnel positioning system

 

Application background

 

        At present, in large-scale factory, manufacturing enterprises and the petrochemical industry, in addition to safety regulations and attendance management, the safety and management issues of personnel mainly rely on on-site management by supervisors. This approach not only requires supervisors to be present at the site in person, but also fails to fundamentally solve the problem of personnel management. For example, if the workshops are scattered, supervisors need to constantly patrol each workshop. When there are a large number of personnel, it is impossible to supervise every individual effectively. With the expansion of enterprise scale and the increase in the number of personnel, how to improve the work efficiency of supervisors and manage each individual well has become of vital importance for enterprise management.
 

 

Bluetooth positioning

        The iBeacon (Bluetooth) technology was released by Apple Inc. in 2013. It is used for indoor positioning. Through the combination of software and hardware, it greatly improves the accuracy of indoor positioning, enhancing it from the original accuracy of several hundred meters or dozens of meters to within one meter. Due to its features such as no need for cable modification, convenient deployment, low system cost, support for mobile phone terminals, and high precision, it has become the mainstream indoor positioning technology and is widely applied in places like shopping malls, parking lots, exhibition halls, transportation hubs, factories, prisons, mines, nursing homes, hospitals and so on.

Characteristics of buletooth positioning

 

Principle of bluetooth positioning

 

The principle of Bluetooth positioning is based on the triangulation algorithm. By using the signal strengths of three or more Bluetooth devices with known location information, and through some other auxiliary methods such as the weighted average method, time-weighted algorithm, inertial navigation method, Gaussian filtering algorithm, etc., the current location can be calculated.

 

UWB Positioning（Ultra widebrand）

 

Ultra-Wideband (UWB) technology is a carrier-free communication technology that uses nanosecond-level non-sinusoidal narrow pulses to transmit data, so it occupies a very wide spectrum range. Traditionally, positioning technologies such as those based on WiFi and BLE (Bluetooth Low Energy) determine the position of an object according to the strength of the signal. The signal strength is greatly affected by the external environment, so there is a relatively large error between the positioned location of the object and its actual position, resulting in low positioning accuracy. In contrast, UWB positioning adopts broadband pulse communication technology, which has extremely strong anti-interference ability, reducing the positioning error. The emergence of UWB positioning technology has filled the gap in the field of high-precision positioning and can provide centimeter-level positioning accuracy.
 

Characteristic of UWB Positioning 

 

Principle of UWB Positioning

 

The principle of Time Difference of Arrival (TDOA) positioning is adopted for the estimation of the position. The UWB positioning technology is utilized to measure the time difference of the propagation of radio signals between the positioning tag and two different positioning base stations, so as to obtain the distance differences of the positioning tag relative to four groups of positioning base stations. The coordinates of the tag are calculated by using the following equations.

 

System Introduction

 

Aiming at the problems of enterprises in personnel and item management, Shanghai Zejie Intelligent Technology Co., Ltd., based on its technical advantages in the fields of the Internet of Things, communication, mapping, location services, etc., has developed a personnel/item positioning system. It is a comprehensive positioning system that takes into account the characteristics of accuracy, ease of use, cost, etc., and supports mainstream positioning technologies such as UWB and Bluetooth. It meets the behavioral needs of different industries, including factory production, petrochemical industry, smart elderly care, smart medical care, etc. On the basis of positioning, two-dimensional/three-dimensional vector maps are constructed to provide users with diversified location services.

 

 

Characteristic of System

 

1、High accuracy positioning
It has a fast positioning speed and high accuracy, and can accurately count the number of people within the area.
2、Vector Map
Display of two-dimensional/three-dimensional electronic maps both indoors and outdoors, which is three-dimensional and intuitive.
3、Track query
Display the movement tracks of personnel, vehicles and supplies within the area.
4、One-click SOS
Quickly grasp the situation of personnel in case of an emergency.
5、Alarm linkage
An electronic fence can be set up, and it can be linked with the alarm system.
6、Video surveillance linkage
It is linked with the video surveillance system, allowing you to check the on-site situation at any time.
7、Access control linkage
It is linked with the access control system to achieve the integration of personnel attendance and punching in and out of work.
8、Intelligent escape
Dock with intelligent lights to achieve intelligent escape.
 

System structure

 

Timed location and video linkage

 

 

Fence and alarm

 

1	Enter this area within the valid time period.	2	Leave this area within the valid time period.	3	Be within the area during the valid time period.
4	Be outside the area during the valid time period.	5	The number of people within this area during the valid time period is less than how many?	6	How many more than the number of people are there within this area during the valid time period?
7	Still stay within this area for a certain number of minutes after the valid time period ends.	8	The moving speed is greater than how many meters per second?	9	How many meters has the fixed item moved?

System function

 

Emergency rescue	Statistical analysis	Device management
One-click SOS: The positioning tag is equipped with a one-click SOS function. In case of an emergency, personnel can initiate a distress call with just one click on their own. The system will display the specific location of the person, facilitating a quick rescue operation. Fall Alarm: The terminal can also have a built-in nine-axis sensor to achieve the function of detecting and alarming when a person falls.	Regional alarm analysis Historical number of people analysis Number of visits to the region, etc.	It is possible to remotely view and manage the battery levels, usage conditions, device health status, and working states of the base stations and tags.

 

Applicable industries