JIMI Electronic

GPS for paddlers and rowers For athletes who row or paddle for fitness or in competitions, a Personal GPS Tracking Device provides a quick and easy way to gauge distance and speed without installing a speedometer in your boat; they’re also cheaper than venturi speedometers. I’ve seen GPS receiver cases mounted to canoes, kayaks, and rowing shells using Velcro, duct tape, webbing, and custom-made fiberglass holders, all optimally placed to let the athlete read the screen and click buttons. Obviously, make sure that your GPS receiver stays dry. Your GPS receiver should have an IPX 7 rating (submersible for 30 minutes in one meter of water). Regardless of the rating, I use a waterproof bag. Voyageur bags, priced under $25, are durable, watertight, and buoyant; it’s easy to see the screen and use the receiver while it’s in the bag.  If you’re using a GPS receiver in any type of watercraft, tether the GPS receiver (or its case or bag) to yourself or the boat. This is good insuranc...

The development tools available for GPS application design vary depending on the complexity of the target system and the GPS solution being used. Most  GPS tracker  vendors offer software tool suites that allow a developer to communicate with the GPS receiver through the serial port of a personal computer. These software tools typically use messages compatible with the standard NMEA (National Marine Electronic Association) format, but many vendors also offer their own customized sets of messages and message formats.  The more advanced development tools, available for some GPS chip sets, are intended to help the application developer integrate their software with the GPS tracking software running on the same MCU. Because of the hard real-time constraints typical of GPS software implementations, the most efficient way to enable the smooth integration of the  GPS tracking platform  with the application software is through a clearly defined software API. With a sta...

When access to the GPS first became available for military and commercial use, only a few companies had the technology and expertise to develop reliable, accurate  GPS Tracking Device  . Application developers who needed GPS services would simply purchase a board level solution from a GPS supplier, and integrate it into their design. In the past, GPS correlators were designed with a single channel, which was multiplexed between each SV signal being received. This resulted in a very slow process for calculating a position solution. Today, systems come with up to 12 channels, allowing the correlator to process multiple SV signals in parallel, achieving a position solution in a fraction of the time. Also, while the correlator functionality is sometimes performed in software using a high-performance digital signal processor (DSP), the real-time processing requirements and repetitive high rate signals involved make a hardware correlator solution ideal, from both a cost and through...

While most  GPS Tracking Device  have the same functionality, there are a lot of differences in manufacturer and model user interfaces. In a way it’s like sitting someone down in front of three personal computers, one running Microsoft Windows XP, one running Linux (with the KDE or Gnome interface), and the other a Macintosh, and asking a computer novice volunteer to perform an identical set of tasks on each of the computers. Good luck! Because of this, you’re not going to find detailed instructions on how to use specific GPS receiver models. What you will find is information on how to use most any GPS receiver, with some kindly suggestions tossed in when it’s appropriate to consult your user’s guide for details. GPS receiver models are constantly changing and being updated. Instead of recommending that you buy a certain brand or model (that could possibly be replaced by something cheaper and better over the course of a few months), I’ll tell you what questions to ask whe...

Fundamentals of satellite-based positioning To understand the true value and cost of the positioning capabilities of the GPS, it is important for the user to have a basic understanding of the science behind positioning, and the types of components and techniques that may be used to calculate accurate positions. The basic science behind GPS; the different unassisted and assisted position calculation techniques that may be used, depending upon the needs of the specific application; and the hardware and software components necessary for calculating a position. The basic science of global positioning The design of the  electronic tracking devices  makes it an all-weather system whereby users are not limited by cloud cover or inclement weather. Broadcasting on two frequencies, the GPS provides sufficient information for users to determine their position, velocity and time with a high degree of accuracy and reliability. As mentioned previously, frequency L1 is generally...

During the last few years the GNSS industry has seen continuous growth in the number of firms that use satellite navigation to create value-added services, ranging from GIS and land surveys to LBS and ITS. This trend toward the provision of consumer services was forecast in many studies carried out in the 1990s, later confirmed by recent research (mainly before selective availability was deactivated). It was reported that in terms of revenues, the aviation market for  GPS tracking device  had a growth of 10%, the marine market 11%, the military and timing markets both just under 25%, and the land market just over 24%. Approximately 62% of the total North American GPS market revenue was from land applications. With the turning off of SA the improved accuracy has encouraged the implementation of new navigation services. A further shift toward service provision is due to the modernization of portable tracker and the European navigation activities, with the introduction of EG...

Over the past several years, we have witnessed an impressive change in the size and capabilities of cellular phones and their individual components. First generation cellular phones for analog cellular networks were very big and for voice processing only. Today, on the other hand, Over the past several years, we have witnessed an impressive change in the size and capabilities of cellular phones and their individual components. First generation cellular phones for analog cellular networks were very big and for voice processing only. Today, on the other hand, The tracking devices for people is a key hardware component for any LBIS utilizing the mobile-based location provider architecture, like the real-time tracking system example described in this blog. The GPS receiver is important not only because no position will be available to the application without it but also because of its features and performance. There is always the trade-off between cost and quality, and the GPS chip is n...

personal tracking device can utilize location information to potentially provide a safer tracked environment allowing vulnerable people to continue with their daily activities, as much as possible. This paper presents the options for alert escalation. The aim is to provide a safety net, without triggering unnecessary alarms. The escalation procedure involves initial speech alert to the user, then a speech and vibrate alert to the user as a reminder; this is followed by a text message to an identified carer if the user has not re-entered the designated safe zone. Parameters for alert escalation can be tuned to individual circumstances. The user can seek help by getting directions from the current position to home or by calling a carer. We report on a small user evaluation, an essential pre-requisite to testing with the intended cohort. The 21st century has brought an era of global population ageing. This will inevitably lead to an increase in the number of older people with dementia,...

Direct communication between vehicles allows information exchange without requiring any fixed infrastructure or base stations. The location and velocity of vehicles is constantly changing, and the RF communication range is of fairly short distance; therefore, the set of vehicles that can directly communicate will constantly change over a short period of time. This dictates that the physical layer and the network must be capable of operating in an ad hoc, decentralized manner, although coordination and synchronization through GPS ( GPS tracker ) time signals are possible. Any two nodes must be able to communicate securely whenever they are within communication range. In a V2V network we can distinguish two modes of communication, usually designated as: • Single hop: Two vehicles are close enough to communicate directly with each other (either broadcast or point to point) with low latency. • Multihop: Vehicles that can not directly communicate may forward messages through interme...

As a parent, there may be multiple reasons why you want to track your child’s phone. Tracking your child’s phone can help you know about his or her whereabouts all the time. Also, you can locate the phone if your child have lost it. It can also come in handy in times of emergency. To set up a tracking feature, you need to have a phone that supports the service. These days, there are a lot of phones in the market that are manufactured for kids only. A GPS phone can help you to track your child wherever he or she may be. Many service providers will let you know the position of your phone when you need it. Sometimes these come as an anti-theft measure and in many cases they have a family locator package. The websites of these services allow you to track phones that are in the plan. They have different rates for this. They can provide a network location of any phone, but that is not very accurate. However, a GPS kids phone can be tracked more precisely with GPS. You need to clarify that...

Even someone who doesn’t have a lot of interest in technology and devices would have heard about the GPS tracker . The first reason why you should have a asset GPS tracking device is for guidance. Gone are the days when people used to check maps and identify routes to a particular town or locality. You just have to type in your destination on the device, and it will give you step by step instructions on how to reach that location. So, if you are traveling to a new city or going around a new locality, this feature will prove to be very useful. You don’t have to waste time and effort asking people directions on how to reach a particular place. Moreover, it is more reliable than random people you may meet. Moreover, most personal tracking device are voice activated. So you can just tell it your destination. And you don’t even have to take your eyes off the road to read the directions. The device will call out directions as you travel. It will also calculate the current traffic conditio...

A tracking device can simultaneously receive signals from 4 up to 11 satellites, if the receiver is on the surface of the earth. Under this condition, there are two approaches to solve the problem. The first one is to use all the satellites to calculate the user position. The other approach is to choose only four satellites from the constellation. The usual way is to utilize all the satellites to calculate the user position, because additional measurements are used. In order to focus on this subject only the four-satellite case will be considered. If there are more than four satellite signals that can be received by a GPS receiver, a simple way is to choose only four satellites and utilize them to solve for the user position. Under this condition, the question is how to select the four satellites. Let us use a two-dimensional case to illustrate the situation, because it is 24 BASIC GPS CONCEPT easier to show graphically. In order to solve a position in a two-dimensional case, three sa...

A Global Positioning System (GPS) is a group of 24 earth-orbiting satellites, providing location and time in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS Satellites. This system of satellite can work in any weather condition, operate 24/7/365 and travel at roughly 7,000 miles an hour. A GPS receiver uses a triangular calculation to pinpoint a user’s exact location buy comparing the time a signal was transmitted with the time it was received by a satellite. The control segment of GPS ( GPS tracking device ) consists of a master control station (MCS), a worldwide network of monitor stations, and ground control stations. The MCS, located near Colorado Springs, Colorado, is the central processing facility of the control segment and is manned at all times. There are five monitor stations, located in Colorado Springs (with the MCS), Hawaii, Kwajalein, Diego Garcia, and Ascension Island. The positions (or coordinates) of these...

With the developments in GPS tracking, the requirements of magnetic GPS tracker is increasing too. If it can satisfy your needs of safety or offer an effective solution for our kids, for the eldly, for pets and vehicles. We all can to learn and understand step by step. For Children According to the survey showed that 90% of 12 to 17 years old kids who have cell phone in 2014, has increased 60% than in 2004. Some companies have launched a plan for parents to keep track of their children to use the GPS tracker, the operation is so simple, just put this mobile device on your chilren's bag, pocket or other places, just press a button and get all the locations whereever your children go. In terms of the children, it is a portable GPS kid tracker as a GPS phone, the mainly function is to ensure the safety and security of childrens. Of course, children should have their own freedom, they still can run, can ride, can play with their friends. This GPS tracker such as Jimilab's...

Alzheimer's disease (AD) is a common disease in seniors, just one kind of progressive development of neurodegenerative diseases. People who gets this disease may appear memory impairment, aphasia, apraxia, agnosia, visuospatial skill impairment, executive dysfunction as well as personality and behavioral changes and other overall dementia performances, and the etiology GPS Tracking Device still can not be found. With the amount of seniors with AD, people becomes more and more worried about the safety of his old parents, then people launched yellow ribbon, it is separated family members for help after the signs, but also to pray for the blessing of their loved ones identified. people can tie the yellow ribbon with the seniors and if he/she is lost, police can send it to the home safely, but there appears a problem is that do not all the common people can know its meaning or the you can not guarantee the yellow ribbon on them, so it is not the best choice. Fortunately, location GPS...

Believe it or not, 3G GPS tracker has been penetrated to our daily life. You may don’t know how the GPS works, but you can’t deny that your life is closely related to GPS. When you drive your vehicle, entering a remote area and getting lost, the first thing you do is to turn the GPS for help. What is more, with the help of the 3G GPS tracker, you can find the exact location and go anywhere you want to go. Generally speaking, there are 24 satellites rotating around the earth, usually two rounds every day. Being in 6 different orbits, those satellites are positioning accurately and send the information back. By this way, we can conveniently get the location information as soon as possible. Another advantage of GPS is that it won’t be affected by weather, sunshine, rain or storm. Therefore, even it rains dogs and cats or winds terribly, the 3G GPS tracker can still be your good partner. According to the survey, the needs for 3G GPS tracker devices are increasing sharply. F...

Whether we are out of home, security is the most important thing in our mind, let alone traveling or do some outdoor activities such as freeride, mountain walking or climbing, paragliding are those where accidents can be serious or fatal. Having the possibility to follow physically the position of a person on regular basis can be comfortable for family, relatives or others. Well, portable tracker solves this problem well. The GPS tracking device is meant to propose a simple and portable solution for people to get traced during a trip. The application is web based and should be available for every people who have the possibility to. Run a small Java application on its mobile phone. Has link between a GPS device and its mobile phone. Has Internet access. In fact, this concept is so new that there are a lot of applications involving GPS are available on the market, nowadays almost every new car is equipped with a GPS on board and help people in city or country side to find th...