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battery powered gps tracker is A GPS signal receiver. It receives and demodulated satellite broadcast C/A code signals like a "radio", but does not send signals, which belongs to passive positioning.
The battery powered gps tracker calculates the pseudo distance between the received information and each satellite, and uses the range rendezvous method to calculate the four parameters of the receiver: longitude, latitude, altitude and time correction. It is characterized by fast point speed but large error. The module of initial positioning requires at least 4 satellites to participate in the calculation, which is called 3D positioning, and 3 satellites can realize 2D positioning, but the accuracy is not good. battery powered gps tracker continuously outputs location information and auxiliary information in NMEA format through a serial communication port for the receiver to select and apply.
Factors affecting the accuracy of battery powered gps tracker
The positioning accuracy of battery powered gps tracker depends on many aspects, such as satellite clock and orbit differences from the GPS system, the number and geometric distribution of visible GPS satellites, solar radiation, atmosphere, multipath effect, etc. In addition, the same battery powered gps tracker will also have different positioning errors due to antenna and feeder quality, antenna position and direction, test period, open sky range and direction, weather, PCB design, etc. Even if different battery powered gps trackers of the same manufacturer and model are tested with antenna diversity at the same time, the static drift will be different.
battery powered gps tracker positioning principle
Ground coordinates and their general geographical elements (i.e., rendezvous behind space) are obtained roughly by measuring the distance of a satellite in orbit (which determines that it is a known piece of data) from a ground point. Because the quantities of position in the solution equation are XYZ and the clock difference T, the number of accepted satellites must be greater than or equal to 4.
In the process of positioning, there are two ways to obtain the pseudo-distance from the satellite to the ground (i.e. the distance containing error) : 1, ranging code; 2. Carrier phase.
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4g cat gps tracking is coming into the driver's eye, and we want as many features as possible when we buy a locator. How much do you know about GPS in cars?
In fact, the low power alert of 4g cat gps tracking has two implications:
1, GPS positioning battery low power alarm
The first implication is that when the battery in 4g cat gps tracking (mostly wireless 4g cat gps tracking) is about to die, the locator will send a low battery warning to the owner before the battery is about to die, so that the owner can get out of the car and charge the locator battery in real time.
When the device sends a low power alarm, the countermeasures are as follows: ① When the wireless real-time positioning charging device takes over the low power alarm information, it needs to be charged in real time; ② When the wireless charging device is taken over to the low power alarm information, the device needs to be replaced in real time.
Note: With real-time positioning enabled, the power consumption will be faster. If no, you are advised to disable real-time locating and use the once-a-day locating mode.
2. Low battery power alarm for vehicle
The second low power alarm function is mainly used for vehicle battery alarm. Most of these locators are wired 4g cat gps tracking.
This locator can automatically detect the battery status of the vehicle battery. When it detects that the battery is about to die, it will proactively send a low power alert message to the user.
This low battery alarm function is actually to protect the battery, because this is the vehicle battery locator alarm, so this alarm function is also called "external low battery alarm function".
Therefore, when purchasing 4g cat gps tracking, if you want to have a locator with low power alarm function, you first need to communicate with customer service, or browse the detailed information on your own, to avoid misunderstanding of the functional concept.
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To better understand the difference between the two, we also need to understand the sim card's "role" in the vehicle temperature tracker. The vehicle temperature tracker will obtain gps satellite data during use and upload it to the server for decoding. After being decoded on the server, we can view the location data on the application. So the most important thing in the upload and download process is the traffic, so this involves the sim card.
As you all know, it's impossible to surf the Internet and make calls without WiFi if your phone doesn't have a SIM card. Then you can see how important the SIM card's "status" is.
Now, though, there's a vehicle temperature tracker without a SIM card, and what a novelty it is, it also feels technologically sophisticated. The principle of the card-free vehicle temperature tracker is to integrate a flow chip on the circuit board, which uses the company's flow pool. So they set up a traffic interface for this chip to receive traffic from the pool. Thus, the vehicle temperature tracker can be located without installing a card.
However, while the card-free vehicle temperature tracker sounds very tech-savvy, they do have drawbacks:
1. Stability: If some companies use poor quality stream chips, they often go offline on the platform.
2. Maintenance is inconvenient: Once the chip fails, you can only replace it by sending it back to the manufacturer for maintenance. If the traditional vehicle temperature tracker traffic card fails, simply replace the traffic card.
Of course there are disadvantages as well as advantages:
1. After IM integration, the circuit board can be made smaller, thus making the overall volume of the product smaller.
2. Avoid the hassle of inserting the card into your mobile phone. (To that end, only a small percentage of customers find it easy to insert a card, basically just once.)
3, improve the waterproof and dustproof ability
Which is better, card-free GPS vehicle location System or traditional vehicle temperature tracker? Xiaobian still recommends the traditional card-in vehicle temperature tracker, after all, it is not very troublesome to install the card, and compared with the card-free GPS, the traditional GPS has been developed for a long time, and all aspects are perfect. Of course, this is the advice of Xiaobian! The specific needs also need to be based on your own situation and preferences.
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The wireless hidden car gps is different from the wired hidden car gps, and there are relatively more installation places to choose, especially the wireless hidden car gps, where there is usually iron, can become a candidate location for device installation. The places near the tailgate lights, doors, seats, and under the car are the most common places to install them. So, if the car owner wants to install the strong magnetic hidden car gps at the bottom of the car, what is the proper installation?
Installation Precautions
1. If the car mainly wants to install the locator at the bottom of the car, the first step is to ensure that the selected bottom position cannot interfere with the driving situation of the car, the temperature is low, there is no metal component around, and the support equipment is strongly magnetically adhered, which is difficult to be found.
2. When the car owner installs the GPS terminal device, remember that the iron side of the car must not surround the place where the locator signal is transmitted. Although hidden car gps can send out from left to right, towards the sky, the signal is the strongest, this is because the satellite positioning is towards the sky.
installation method
If the place meets these conditions, the device can be "waterproofed". Because the bottom of the car is easily exposed to rainwater, it is very unfriendly to the device. Therefore, if you want to install the device on the bottom of the car, you can put a waterproof bag or the like on the device to wrap the device to prevent rainwater from damaging the device. After confirming that the device is sealed and waterproof, the device can be directly attached to the bottom.
Check that the device is securely installed
After installing the locator, the owner can try to pull the device with a small force. If the device does not move, it proves that the device is firmly installed, as long as the device can be positioned.
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The remote tracking device began to gradually enter the sight of driver friends, and everyone wanted to get more other functions while choosing the tracker. But do you really know all the other functions? For example, what is the practical effect of the low battery warning of the GPS locator that you can see? In fact, the low power alarm of the remote tracking device has two meanings:
1. GPS tracker battery low battery alarm
The first type of meaning means that when the battery in the GPS tracker is about to be exhausted, in order to better avoid the situation that the location cannot be located due to the exhaustion of power, most of them are wireless GPS trackers, and the tracker will run out of battery. Push a low battery reminder to the car owner before it runs out, so that the car owner can charge the battery of the tracker as soon as possible.
When the device pushes a low battery alarm, what needs to be done: (1) When a wireless charging device receives a low battery warning message, it must complete charging as soon as possible; (2) When a wireless charging-free device receives a low battery warning message Equipment must be replaced early.
Special attention: After enabling the real-time positioning of the wireless locator, the power will be consumed quickly. When it is not an emergency, it is recommended to turn off the real-time positioning and select the once-a-day positioning mode.
2. Vehicle battery low battery warning
Yes, the second type of low-power alarm is mainly to realize the alarm prompt for the battery of the vehicle. Most of these locators are wired GPS locators. This type of locator will automatically identify the battery level of the vehicle, and when it detects that the battery is about to run out, it will actively push a low-battery alarm message to the owner.
This kind of battery low battery alarm function is actually for the protection of the battery, and because this is an alarm implemented by the locator for the vehicle battery, this type of alarm function is also called "external low battery warning function".
Therefore, when you buy a GPS locator, if you especially want this kind of locator with low battery warning function, you must first communicate with the customer service, or read the detailed information yourself to avoid misunderstanding of the functional concept.
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Now, professional equipment such as GPS technology that can provide accurate data in all aspects is more and more popular in various industries. It can be found everywhere from car deals to used equipment rentals. The equipment is easy to use, but if there are more people using it, it will involve a difficult problem. How long can this equipment continue to maintain the working condition for a long time? Like a large-scale machine used in a project, if the 4g vehicle gps tracker can only be used for one to two hours, the time spent on replacing the 4g vehicle gps tracker will cost a lot. Now let's briefly talk about the standby time problem of related GPS devices.
GPS equipment, the main thing here is that we know the most 4g vehicle gps tracker. Its working time is not only closely related to the power supply, but also related to the user's usage habits and the frequency of information transmission.
Smart Mini Vehicle Tracker
The two common types of trackers on the market are wired and wireless 4g vehicle gps trackers. The wired 4g vehicle gps tracker is continuously connected to the power line of the vehicle, so as long as the vehicle is powered, the GPS device can continue to work unless the power of the tracker is cut off. And the current wired tracker usually has an emergency power supply, in other words, even if the power supply of the device and the power supply of the vehicle are cut off, the 4g vehicle gps tracker can still work for several hours.
The wireless locator has a built-in mobile power supply, it does not need to consider wiring problems, and the characteristics of strong magnetic adsorption make it relatively convenient to install, basically not subject to location constraints. But the downside is that although the wireless 4g vehicle gps tracker has a built-in power supply, the power storage capacity is limited, and it does not support permanent work. When the power of the battery is exhausted, the device will automatically turn off and stop working. This type of locator, for the rental category, can complete long-term standby for about 3 years.
WIFI car tracker
However, it should be noted that the data for long-term standby is based on the system default setting of uploading information once a day. You can also set the data to upload 24 hours a day in the background, but in this way, the power of the power supply will be quicker exhausted. It runs out in about a week. Therefore, regarding this kind of locator, it is necessary to adjust the working mode professionally.
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I talked to some customers during consultation, and many customers reported that they did not know why GPS for car tracking hidden uses SIM cards, and every GPS device produced by the company needs to install a mobile phone SIM card? So what does the SIM card do?
This problem starts from the principle of GPS: GPS for car tracking hidden obtains satellite signals to calculate latitude and longitude, and then transmits it to the server through the SIM card network. The server parses the specific information and presents it on the mobile APP or computer.
Therefore, the SIM card plays a role in data transmission.
Of course, there are still some manufacturers who advertise that they "don't need a SIM card", but this is just the idea of the manufacturer stealing the concept. In fact, they solder the SIM chip directly to the device. This makes customers think that they don't need a SIM card.
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How to activate car GPS positioning has been a topic that is often discussed, but since many people who use the locator for the first time do not know it, today Xiaobian specially arranged the GPS positioning activation method and steps, I hope it will be of some help to you. .
1. GPS positioning terminal is divided into: wiring and installation-free
The installation method of the two positioners is also slightly different. The wired locator needs to be connected to the power supply of the vehicle to make it work normally. However, installation-free locators can usually be fully charged according to the battery size, standby time and usage days of the locator.
2. The activation method of GPS positioning terminal is as follows
1. Install the SIM card on the tracker.
2. Fully charge the locator or connect the power cord to enable the locator to have power to start.
3. The locator can be activated and used if the vehicle or locator is removed from the outdoors for a period of time.
3. The operation steps for installing the SIM card in the locator are:
1. Open the back cover of the locator or the SIM card slot plug of the locator.
2. Insert the SIM card correctly according to the card picture on the locator.
3. Close the back cover or the card slot plug.
Fourth, the power-on operation method of the positioner
1. Wiring locator: If you know electricity, you can install it yourself. In fact, the negative pole is easy to find, just find the positive and negative poles of your car's power supply. The place where the body is grounded is the negative pole, and the positive pole is found in the safe. Found near the car key switch or directly connected to the battery; can also be installed by a relevant technician.
Note: It is best to connect the constant current, which is not affected by the key switch of the car. The power cord is directly drawn from the car battery; Satellite signals from kilometers away.
2. Installation-free locator: The charging cable of the locator is connected to the locator, and charging starts. When the locator is fully charged, the charging light of the locator will change color or stop flashing.
Note: Different types of 4g lte gps tracker charging indicators are displayed in different ways, which can be operated according to different types of tracker manuals.
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The mini gps tracker began to slowly enter the driver’s eyes. When selecting the tracker, everyone also wanted to maximize other functions. But do you really understand other functions? For example, what is the practical effect of the low battery warning of the GPS locator you can see? In fact, the low battery warning of mini gps tracker has two meanings:
1. GPS tracker battery low battery warning
The first category means that when the battery in the GPS tracker is about to be exhausted, in order to better avoid the situation that cannot be located due to exhaustion of power, most of them are wireless GPS trackers. Before it is exhausted, send a low battery reminder to the car owner so that the car owner can charge the locator battery as soon as possible.
After the device pushes the low battery alarm, what needs to be done: (1) When a wireless rechargeable device receives a low battery warning message, it must be charged as soon as possible; (2) For a wireless charging-free device, when it receives a low battery warning message The equipment must be replaced early.
Special attention: After real-time positioning is enabled on the wireless locator, the power consumption will be very fast. When it is not an emergency, it is recommended to turn off the real-time positioning and choose the once-a-day positioning mode.
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What convenience does 4g wireless tracker bring to people’s lives? In recent years, the emergence of 4g wireless tracker has begun to expose people to the technical means of satellite positioning, so 4g wireless tracker has been loved by most people, and 4g wireless tracker has become more and more popular. It is becoming more and more popular; then with the application of 4g wireless tracker, what convenience has it brought to people's lives?
1.4g wireless tracker pays attention to safety. It can locate the location and whereabouts of vehicles and individuals. Now personal 4g wireless tracker is widely used in children and elderly people, so that parents can always know the location of children and the trajectory of children’s activities, children Always within the sight of parents. For the elderly, sometimes they get lost and cannot find their way home. Then children can look up their parents’ walking routes based on 4g wireless tracker and find their parents.
2. Vehicles use 4g wireless tracker to view the progress and route of the vehicle. For example, for people on public transportation such as buses, you can use 4g wireless tracker to view the travel distance and location of the bus, and you can choose the appropriate route according to the drive. Avoid causing time delays.
The 3.4g wireless tracker also has an alarm function. The administrator can check the status of the 4g wireless tracker through the GPS positioning monitoring platform, such as setting an electronic fence for a child, and an alarm will be triggered when the child leaves the range. Or when there is an emergency, you can use the SOS button that comes with 4g wireless tracker to contact parents in time.
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