Indoor positioning and timing solution for bus parking


Location: Zhongxing Talent Apartment Bus Parking Lot

Constructor: Shenzhen GEMS NAVIGATION Electronics Co.,Ltd.

Keywords: GPS transponder, GPS power splitter, bus GPS, bus parking GPS, bus dispatch, GPS adjustable digital amplifier, GPS Beidou timing antenna, bus positioning, bus timing, GPS signal coverage.


Project Profile

In 2023, Starfire Source provided a bus company in Shenzhen with GPS satellite positioning signal amplifier equipment for the installation of an indoor positioning and timing system. Because most of the bus car park addresses are indoors or in the basement, the signal is blocked, resulting in no GPS Beidou signal, unable to locate and time the bus vehicles.

In view of the large area and weak signal of the indoor car park on the ground floor of the Talent Apartment, we designed an 8-port GPS Beidou signal transponder coverage system to cover the floor with GPS Beidou signals to meet the positioning and timing needs of the public transport vehicles.


Solution Description

This bus timing solution uses the GNSS timing antenna TIMING4100, GPS line amplifier GA40 and GPS adjustable digital stepper amplifier RGA30-DV8 to complete the forwarding and coverage of the outdoor GPS signal. The strength of the satellite signal can be adjusted to achieve the reception of GPS Beidou signals by public vehicles, positioning and timing of bus vehicles in and out of stations.

System connection diagram





Problems solved and technical difficulties

1. the problem of GPS signals not being received in the bus terminal (no positioning and timing) is solved.

2. the problem of complex indoor environment and serious interference of GPS signal

3. accurate positioning and timing in buses;


Site pictures


Pictures of the site

Indoor antenna GRA10


Outdoor antenna TIMING4100



Installation diagram of the cabinet built-in device RGA30-DV8


Before installation: poor signal, unable to locate

After installation: good signal for positioning and timing



Shenzhen GEMS NAVIGATION Electronics Co.,Ltd., as a solution provider of indoor positioning and timing for bus parking, specializing in indoor signal forwarding coverage, indoor positioning system for fifteen years, has been providing signal coverage and timing solutions for bus parking, railway stations, airports and other areas across the country.
From the beginning of its establishment, it has been researching multi-system satellite forwarding to achieve satellite positioning and timing, solving signal solutions for testing, and is committed to providing multi-system satellite testing signal solutions for major laboratories and production lines and car positioning. The GNSS signal transponder, GPS signal transponder and BeiDou signal transponder are widely used in laboratory testing, production line manufacturing testing, automotive positioning and timing and other places where satellite signal coverage is required.