truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

GPS establishes network connection

source:truck tracking webfleet solutions release time:2022-10-19 Hits:     Popular:realtime gps tracker online

  

  Before the connection in the piconet is established, all devices are in standby state. In this mode, the unconnected unit periodically "listens" for information every 1.28 seconds. Every time a device is activated, it monitors 32 frequency hopping points planned for the unit. The number of frequency hopping points varies according to different geographical regions. The number 32 only applies to most countries except Japan, France and Spain. The master device first initializes the connection program. If the address is known, the connection is established through a page message. If the address is unknown, the connection is established through an inquiry message followed by a page message. In the initial paging state, the master unit will send a string of 16 identical page messages on the 16 frequency hopping points allocated to the paged unit. If there is no response, the master will continue paging on the remaining 16 frequency points in the activation order. The maximum delay time for Slave to receive messages from the master is twice the activation cycle (2.56 seconds), and the average delay time is half of the activation cycle (0.6 seconds). Inquiry messages are mainly used to find Bluetooth devices, such as shared printers, fax machines and other similar devices with unknown addresses. The inquiry message is very similar to the page message, but the inquiry message requires an additional data string cycle to collect all responses.

  If the connected device in the piconet does not transmit data for a long time, Bluetooth also supports the energy-saving mode. The master can set the slave to hold mode. In this mode, only one internal counter is working. Slave can also actively request to be set to hold mode. Once the cell in hold mode is activated, the data transfer starts again immediately. Hold mode is generally used for connecting several piconets or low energy consuming devices, such as temperature sensors. In addition to the hold mode, Bluetooth also supports two other energy-saving working modes: sniff mode and park mode. In sniff mode, slave reduces the rate of "listening" messages from the piconet, and the "breathing" interval can be adjusted appropriately according to application requirements. In park mode, the device is still synchronized with the piconet without data transmission. The device working in park mode gives up the MAC address, occasionally listens to the master message, resumes synchronization, and checks the broadcast message. If we rank these working modes in ascending order according to energy saving efficiency, then they are: breathing mode, holding mode and pause mode.


Read recommendations:

Gps speed limiter equipment

gps vehicle tracker Production

TK08AL- RFID Car GPS Tracker

What basic functions should Beidou positioning equipment have.Gps speed limiter

GPS tracking monitoring promotes mobile logistics management

Last article:Bluetooth GPS Disadvantages

Next article:Bluetooth GPS technology

Related Information

Pet GPS Tracker

2023-04-11

gps vehicle tracker Vendor

2023-04-23

gps tracker for trailer

2023-04-11

4G GPS Tracker for vehicles wholesaler

2023-04-23

Pet GPS Tracker price

2023-04-11

simple gps tracking custom

2023-04-23

Fleet management expert

2023-03-16

4G GPS Tracker Factory

2023-04-23

OBD GPS Tracker

2023-04-11

real-time gps tracking Solution

2023-04-23

G03

2022-06-21

G01 Smallest Personal Old People Mini GPS Tracker for Kids

2022-06-19

C32 (9~90V E-bikes/Motorcycle/Car gps tracker)

2022-06-21

G09L -6 inch Tail light tracker

2022-06-20

GF70L-Solar Magnetic Asset GPS Tracker

2023-10-07

How to judge the quality of a car GPS locator?vehicle gps tracker webfleet solutions

2023-03-21

The obvious advantages of three generations of GPS products (actual effect)

2022-08-19

Disadvantages of Bluetooth GPS receiver.fleet tracking mobile app

2022-11-16

Types of GPS chips used by common GPS receivers

2022-12-30

GPS_GPRS system composition and characteristics

2022-10-28

Bluetooth GPS related issues.plug & play Obd gps tracker Processing

2023-08-04

Whether GPS positioning is GPS navigation.obd-II port gps tracker manufacture

2023-05-09

The role and functional characteristics of installing a GPS positioning system for taxis.gps vehicle

2023-10-07

Automatic optimization and scheduling function of mining GPS positioning system.Gps speed limiter

2023-10-07

How to implement the GPS monitoring system function?

2023-02-11

Portable Wireless GPS Tracker

2022-09-20

The advantage of mobile phone GPS navigation.GPS Tracker for vehicles Production

2023-05-09

Which vehicles are the on-board GPS locator terminals applied to.gps vehicle tracker

2023-10-07

What are the main parts of the receiver of the car GPS

2023-06-15

What is the difference between the car GPS positioner and the car navigator?gps tracker für auto web

2023-03-21