• Windows 10
• Internet, WiFi
• Useful
• Windows 7
• Mistakes

GPS does not turn off in the smartphone. How to set up GPS on an Android device or disable it altogether. Problems with GPS

That is why it is very important to properly configure the GPS on Android in order to get the most out of this component.

What is GPS in a smartphone and how is it used

The location system is used in Android not only for navigation, but also in a number of other cases.

For example, many applications from Google actively and constantly determine the location of the smartphone and its user. The data collected is used for a variety of purposes.

So, Google Search helps you find nearby cafes, restaurants and other establishments. It is enough to drive in the search line "Where you can eat", as a smart system will display a list of nearby catering points. Shops, train stations, hospitals, public institutions and other organizations - nothing will hide from the ubiquitous "eye" of Google, and the search giant will help you find those that are closest to the seeker.

GPS is also used to create reminders tied to geographic coordinates. This functionality is implemented in Google Keep. There you can create a list of products and set a reminder so that the application displays a notification as soon as the smartphone - and its owner - is in the store.

Of course, in this case, GPS is a tool, and how it will be used depends only on the user.

GPS is also used in the camera - the coordinates are "attached" to the photographs taken. This is excellent proof that the resulting picture from the top of Elbrus is not the result of photoshopping, and it was taken right there, on this mountain.

Based on GPS positioning, “anti-theft” also work. All programs that allow you to find a lost Android device require the smartphone's location module to be enabled. And yes, it works!

And, finally, GPS is also used in navigation, whether it is working with cartographic systems (Google Maps, Yandex Maps) or directly determining and laying a route (Navitel, 2GIS).

In general, the GPS-module is a useful thing. Well, except for a few "buts".

Why you should disable GPS in Android

However, GPS is not a panacea at all, but rather a double-edged sword. The geolocation system can bring some trouble.

The first problem is, of course, the increasing battery consumption. GPS is a rather resource-intensive technology that "eats" the battery with a huge appetite. Even top-end smartphones cannot work for more than 4-5 hours with the positioning module turned on and active, to say nothing of less “advanced” devices.

The second problem is that too many applications want to know the user's location. And if you want to entrust the same Foursquare with information about where you are, then some alarm clock that accesses GPS is at least bewildering.

In addition, Google collects and stores information about all the “journeys” of the user, about his whereabouts at various dates and hours, and this is somehow strange and causes slight bouts of paranoia even among those who are not particularly suspicious.

Leaving GPS on or permanently turning it off is a personal matter for each user. But setting up this service is still worth it.

Setting up GPS in Android

First of all, go to the "Settings" application of the Android operating system. It is there that the bulk of the manipulations will be carried out. The item that we need is called “Location”.

What can be done with the GPS at this point? Actually, it can be turned on or off - just move the corresponding slider. When it is in the ON position, GPS and coordinates can be accessed by any application that has been given permission to do so.

The "Recent Locations" list shows all apps that have attempted to locate a user in the last few hours. Thanks to this, you can “catch malware” - a program that collects data about the user and does not use it for the benefit of this user (as Google does).

But the most important item in the location settings is the Operation Mode. Modern smartphones are equipped not only with a GPS module, but also with A-GPS technology. It allows you to determine the location with more or less high accuracy, even if the device cannot communicate with positioning satellites.

A-GPS uses various data - information from towers cellular communication(in this case, a triangulation technique is used) and information from available Wi-Fi access points, even if the device is not connected to them.

So, modern smartphones have 3 modes of operation of the GPS module: by all sources, by network coordinates and by GPS satellites.

The first mode is just the implementation of A-GPS technology. The smartphone uses all available sources to determine the location. This can be positioning satellites, cell tower coordinates, data from Wi-Fi access points, or all at once. Operation in this mode provides the highest accuracy of positioning, regardless of whether the device is outdoors or indoors, but leads to increased battery consumption.

The second mode disables the GPS module - and then data from towers and access points are used to determine the coordinates. This saves a lot of battery power, especially if Wi-Fi is also turned off, but worsens positioning accuracy - up to a "span" of several blocks.

You can further reduce battery consumption by turning off Wi-Fi in A-GPS. The instruction is described in the article "".

Of course, for positioning by the coordinates of the network, it is not necessary that the device is in the field of view of the satellites. Therefore, if you use this mode, the location will be equally badly determined regardless of where the Android device is located: indoors or outdoors.

The third mode disables A-GPS technology, and the device starts trying to determine its coordinates exclusively from geopositioning satellites. The battery consumption in this case is also quite high, but lower than in the A-GPS + “pure” GPS combination, the accuracy is within a few meters. The only “but” is to move the smartphone into a room (or into a tunnel, for example, in general, to deprive it of the ability to “see the sky”), and it loses contact with satellites and, along with it, orientation in space.

Thus, you can set the optimal mode of GPS operation.

You can then enable or disable location sharing. The switch is located in the Settings, in the "curtain" or on the corresponding widget.

Optimal GPS settings on Android

If you want to ensure maximum battery life, then it is better to set the GPS operation mode to “Only by GPS satellites” and completely disable it from the Settings, “curtain” or widget. This prevents the battery from being wasted trying to locate the device.

Then, when GPS is still needed, for example, if it is necessary to plot a route from point A to point B, it can be turned on - from the settings, the “curtain” or the widget.

If you want to take full advantage of constantly working positioning (for example, personalized search results in google app), but at the same time there is no desire to run with a smartphone to the outlet every three hours, then you can turn on the “Only by network coordinates” mode. Unfortunately, it is not suitable for navigation. The location service itself should be left enabled.

And, finally, if the battery charge is not too important - you still have to “run to the outlet” two or three times a day, then you should turn on the “According to all sources” mode and leave the service on. This ensures maximum positioning accuracy both indoors and outdoors.

The main task of transport monitoring is to optimize logistics schemes and reduce fuel costs. However, the greatest fuel savings for the owner of a vehicle is not due to indefinite “optimization”, but due to the fact that monitoring allows you to monitor fuel drains and stop “leftists”. Drivers responded by trying to spoof GLONASS". In fact, these attempts are divided into two types: hide the movement of the car, and hide the fuel drain. In the first case, navigational equipment is affected, in the second - fuel meters.

How to get rid of GLONASS tracking

Drivers come up with various ways to block the transmission of information about the movement of the car, depending on their knowledge of technology and electronics. There are both frankly barbaric techniques - damage to equipment - and more advanced ones, using additional equipment.

1. Damage to the GLONASS antenna.
The most primitive way that drivers go is to influence the antenna. She's in plain sight and needs a good signal from 3 or more satellites to report her car's location. You can damage the cable - this is done by piercing the insulation with a needle and breaking the wiring. But such damage is easy to identify and apply sanctions for sabotage. Some drivers simply cut the cable, and then come up with the excuse “broke off” or “frayed”. Moreover, this method is useless in those terminals that are able to receive signals without an antenna.

2. Shielding of the GLONASS antenna. You can try to shield the antenna with metal, for example by wrapping it in foil or a thicker metal sheet. There are attempts to disrupt signal reception with a magnet, but as a rule they are unsuccessful.

3. Impact on the GSM antenna. A completely useless event, because. the terminal will still collect information about the movement, and the operators will quickly identify the machine that has stopped transmitting the signal, and conduct an inspection. After the return of communication, all information about the route traveled will be transmitted to the destination.

4. Shielding the GLONASS terminal with metal sheets is a useless exercise if the antenna cables are still undamaged from the case.

5. Power off the terminal from the onboard power supply. It seems to drivers that this measure will get rid of all problems with navigation, but firstly, the failed terminal will be checked and restored to working order, and secondly, most terminals are equipped with their own batteries and will be able to record the path traveled for several hours after a blackout.
6. Damage to the GLONASS terminal is a barbaric and irrational act, which instantly allows you to identify the one who did it, fire him, but also deduct the cost of the terminal from the salary. Damage is carried out by various means, from a primitive mechanical breakdown to more sophisticated methods: flooding with water, hitting with stun guns or grounding the metal case of the terminal. In all cases, the violation is easily determined, as well as the moment of damage. That is, the culprit is easily detected.

7. Attempts to introduce GLONASS terminal into microchips.
In fact, they are excluded, since the body is sealed and any introduction will not go unnoticed.

8. Removing or damaging the SIM card.
Advanced motorists know that messages about the movement of the car are transmitted over the GSM channel, which means that a telephone SIM card is installed inside the terminal. If it is damaged or pulled out, the signal will not be transmitted. Such a technique is similar to damage to a GSM antenna - i.e. completely useless, tk. information about the movement will be accumulated and will be transmitted at the time the card is returned to its place.

9. Use of GPS-GLONASS jammers.
Domestic and Chinese craftsmen quickly responded to market demands and offered portable electronic jammers for satellite signals. Such a device, powered by a cigarette lighter, leads to the fact that the terminal sends an alarm message "Satellite signal lost" to the dispatch center. The use of a jammer is the most "intelligent" technique, but requires the same intelligent approach in use, since periodic "losses of signal" on one machine will ultimately arouse the suspicions of dispatchers. In addition, as a rule, a jammer successfully blocks one frequency, and if the terminal is dual-system: GLONASS / GPS, then two jammers are needed or the device will be useless.

There are three types of fuel meters: flow, submersible and ultrasonic. Flow-throughs are effective only in summer, and in winter they create a lot of problems for drivers due to low-quality fuel and blockage of the fuel line at the location of the meter impeller. Therefore, only ultrasonic and submersible meters are now used. All of them estimate the amount of fuel in the tank.

How to trick an ultrasonic fuel meter.

Ultrasonic meters are installed under the tank, and the fuel level is recorded through the bottom using ultrasound. Such a counter can be disabled by an electric shock, but a violation of its operation will be immediately detected. Drivers came up with a more sophisticated method - to attach a magnet to the meter case. In this case, the voltage rises in the meter, and it starts to show false information: an increase and decrease in the fuel level while driving. Thus, the owner of the vehicle loses confidence in the meter readings and the driver opens up room for fraud.

How to cheat a submersible fuel meter

Submersible meters look like a tube that is installed vertically inside the tank. Such a meter determines the fuel level very accurately and is very reliable - it is resistant to current, and reliable sealing allows it not to be afraid of water. Some drivers try to disable it by pouring hot water during frost - but this action does not affect its performance. Therefore, the only and most rude way to break the meter readings while maintaining its performance is to bend it inside the tank. Drivers can do this with a metal bar through the filler neck. Some even try to remove the tank and bend its surface so that the counter is bent inside, but such an effect is easy to see from the appearance of the tank. Moreover, the meters are not installed end-to-end, but there is a gap of about 5 cm between the bottom of the tank and the meter tube. A tank bent by this amount will be too noticeable with its crumpled appearance.

Return drain

The only, so far, win-win option for draining fuel with a meter installed is saved on diesel cars. On them, the drain of the "return" is practically impossible to control. An embedded tap into the return fuel line will allow the driver to safely drain part of the fuel returned to the tank. The meter will show an increased consumption, but it will not be possible to remotely determine the reason for it. It will be possible to identify a discrepancy only if you compare the readings of two meters on different cars, or accompany the driver on the route and monitor fuel consumption.

How to fool GLONASS for sure

In conclusion, it should be said that the successful "deception of GLONASS" and fuel meters lies in the mutual interest of three categories of workers: drivers, garage managers and dispatchers. Only their joint coordination will make it possible to work out such fuel theft schemes, in which all employees will look like victims, unfairly accused because of constantly making mistakes, low-quality and useless, from their point of view, GLONASS equipment.

P.S. Unattainable today for ordinary drivers, but theoretically possible means of deceiving GLONASS could be the technology used by the Iranian military against an American unmanned aircraft. The Iranians, with the support of Belarusian technical specialists, jammed the signals of the real GPS and began to transmit false data to the drone, which led it to the Iranian airfield, although the car was sure that it was returning to the American base. Those. there is already a technology for replacing a satellite signal with another one - a local one. But for now, it's too complex to be used for something as small as stealing fuel.

Almost all modern smartphones are equipped with a GPS chip. The navigation module is also present in most tablet computers running the Android operating system. However, not all users are aware that the chip is often disabled by default. As a result, such people are surprised that the photos are not geotagged, and Google Now does not show the route to the house. Fortunately, you can turn on GPS on your tablet and smartphone without any effort.

Why do you need GPS?

Decades ago, GPS satellites were only available to the military. But Americans quickly realized that navigation chips, apps, and maps could make a lot of money. As a result, ordinary people got access to the technology - it was only necessary to acquire the appropriate device. Initially, these were specialized GPS-navigators. And now the navigation module has seriously decreased in size, and therefore it can be built even into an ordinary smartphone.

GPS signal helps to understand where in the world you are now. This is useful for several reasons:

• Navigation application will help you not to get lost in the forest;
• With navigation, you can navigate even in an unfamiliar city;
• You can easily find the address you need;
• You are saved from traffic jams - the Traffic Jams service helps to avoid them;
• Various apps show you nearby eateries and malls;
• GPS helps determine the speed of movement.

In a word, a navigation chip can be very useful. But you will have to pay for its use. If you decide to turn on GPS on Android, then get ready for higher power consumption. This is most noticeable on older devices, where there is no support for A-GPS technology. Also on inexpensive ones there is a problem with receiving a GPS signal. Ours will help to get closer to its solution.

GPS activation

But enough of the lyrics... Let's find out how to enable GPS on an Android phone. This is done very simply:

Step 1. Go to the device menu and tap on the icon " Settings».

Step 2. Here select " Location».

Step 3. Click on " Mode».

Step 4. Select location mode " According to all sources" or " By GPS satellites».

On smartphones running more than current versions Android GPS can be enabled through the notification bar. To do this, simply activate the button GPS(may have a different name depending on the manufacturer). By making a long press on this item, you can go to the location settings and change other parameters. For example, enable power saving mode or high accuracy.

Note: on smartphones and some other items, the names of the items may differ. For example, the section " Location"may have a name" Geodata».

You can talk about the benefits of GPS on a smartphone for a long time, so we will not do this. But recall that GPS is not only accurate (well, almost) localization and routes to anywhere, but also a lot of mobile applications, which literally cannot live without data about your location and constant tracking of your movements (often extremely intrusive), and which, in addition to this, actively “eat” the smartphone’s battery.

In general, GPS on the iPhone is needed, but sometimes it would be nice to turn it off.

Another thing is that most users are not able to really turn off GPS on the iPhone. Everyone is doing how? They simply activate the flight mode, in which the wireless modules of the smartphone do not seem to work.

In Airplane Mode, the iPhone cannot send signals (as is commonly believed) that could interfere with aircraft electronics, but the GPS receiver is a passive radio, that is, it only receives signals and, unlike WiFI, 3G, LTE and Bluetooth, does not broadcast anything . However, in this mode, the GPS on the iPhone does not turn off, and all sorts of programs take advantage of this. Of course, without a smartphone connected to the Internet, it is not so easy for them to determine your coordinates, but any navigation application with an offline maps function will use GPS, as they say, to its fullest.

But if there are switches for other wireless modules in the iPhone (in the Control Center), then you will not find such a switch for GPS, so turning off GPS on the iPhone is not so easy. What if you need to turn it off? Well, for example, to save battery charge.

So, to completely disable GPS on the iPhone, do the following:

• to start, go to Settings ", further - in" privacy where we find Location Services «;

• tap on the switch located next to it and move it to the “ Off ”(it will turn gray from green).

All! You were able to disable GPS on iPhone.

Now all applications installed on your smartphone, including Apple Maps, will not be able (at least officially) to use your location data.

But you also have the option to turn off GPS on the iPhone not for all wholesale programs, but only for some. To do this, go to the section Location Services » settings applications, we see the list and in it we disable access to GPS only for certain programs.

By tapping on the slider, you will see a small menu in which, for some applications, you can choose to turn off GPS modes. " Never " means that the application should not use the GPS in your iPhone at all, " When using the program » — GPS is activated only if the application is active, « Is always "- GPS is used by the program all the time, if you have not disabled it in the way described above for all applications.

Today's navigation technology is a powerful tool that is used in many areas of life and supports economic and social growth. The capabilities of satellite systems directly affect the efficiency of business expansion and help to conquer new heights. Application of current technologies satellite navigation and mobile communication allows you to track in real time the exact location of objects and personnel, shows the routes of movement and the correct following of the route, determines the movement data (mileage, speed), in addition, notes fuel consumption and analyzes the performance of units and assemblies. Navigation systems are increasingly appearing in our everyday life, becoming no longer an elite thing, available not only to citizens, but not to all enterprises, but a common means of daily monitoring of personnel and vehicles. Despite the obvious problems of operating systems of this kind, their use is becoming commonplace in an increasing number of enterprises. Since 2010, I have been professionally engaged in the subject of satellite monitoring of transport and would like to consider the problem - how to deceive the GPS / GLONASS transport control system? This topic is topical for all drivers. I will try to open the question objectively, from the side of an independent expert.

In the review, I collected and analyzed situations, both from my personal experience, and suggestions on the forums on the subject of "disarming GPS".

Everyone knows that the monitoring system includes two components - the terminal (controller unit, registrar, autotracker, etc.) and the fuel level sensor, FLS. Let us consider in detail whether it is realistic to intervene in the processes of these two components together or separately.

Ways to influence the operation of the Glonass terminal

A way to influence the operation of the terminal. A box with electronic components inside is an outdoor unit. Some models have a built-in backup battery, while others do not, but certainly all models provide for an external connection to the on-board power supply of the vehicle. For the most part, remote GPS (GLONASS), GSM antennas are used for industrially produced monitoring systems. Usually, the terminal block is sealed, and advice that you need to remove the SIM card for the required time and then return it to its place will not justify itself in any way. Since the SIM is located just inside the block body. Some dashing drivers, having lost their temper, use a risky method - water or other liquid is poured onto the device. However, in practice, it turned out that after the visit of representatives of the installer company in order to consider the reasons for the breakdown of the internal elements of the unit, the operating company had to part with the negligent driver, and the employee, in turn, beg not to fine him for the damage caused. I suppose it became clear to everyone that it is impossible to influence the terminal block, if only to break it corny. There are also external antennas and lines for connecting to the on-board wiring of the vehicle. How to really influence them?

1. Turn off the power. Many are sure that when the device is disconnected from the power supply, the driver will be able to move in his own interests, and returning to the place, reconnect the power supply, as if nothing had happened. Too primitive approach. "Fire up" in front of the authorities - like twice two. Firstly, the built-in battery is located in most units, it supports the system in operating mode up to several tens of hours. And, in turn, the dispatcher will receive a signal to turn off the external power supply. And also, if there is no battery, the dispatch center will still receive such a signal indicating the turn-off and turn-on times. Let us mention separately that all the wires of the terminal are connected to the board through knife terminals, which are sealed, so it is simply impossible to disconnect the wire without damaging the seal. It became obvious that this method is not viable. Let's think further.

2. Interference with the work of the antenna. The option to turn off the antenna will not work, because these nodes have seals by default. Of interest is the method of shielding the GPS antenna, it must be covered with a metal cup, foil or magnet. The signal from the satellites should, in theory, be lost. It seems we have found a solution! But again, not everything is so easy. I will explain in an accessible way - you can cover it with a saucepan, firewood, body armor - the result will be the same. Working with today's highly sensitive GPS receivers, the best you can get in this way is to reduce the number of satellites visible to the terminal. For example, instead of twelve or thirteen GPS satellites that are visible with an open antenna, there will be five or six if you cover it with a sheet of metal 20 mm thick. But you need to understand that in order to obtain accurate coordinates, it is enough for the device to use signals from only three satellites. Thus, this method is also inapplicable in real life. There is no point in shielding the GSM antenna, because it is equivalent to driving a car outside the GSM network coverage area. The device accumulates data in memory for several months, but after the appearance of the network, every single byte of information will be transferred to the dispatcher on the server. In the event of an attempt to disable the antenna, we will encounter the following problems: The GPS antenna is sealed and without damaging the case it is not possible to influence the internal elements in any way. GSM does not have any “brains” inside at all, representing strip tracks of conductors in a plastic case - it is pointless to pierce them with a needle - there will be no harm. The most defenseless place here is the cable - from the terminal to the antenna. It can be pierced with something sharp and, if you're lucky, it will stop working for a while. But you should be aware that this method is a contemporary of Ivan the Terrible, and the very first GPS specialist who will restore its performance will easily determine the cause and, having found the puncture site, will inform your superiors about it. In the same way, with absolute certainty, the facts of mechanical interference in the operation of high-voltage antennas will be determined. Method for "two" on a five-point scale.

3. Special equipment. Perhaps the only reliable method of bypassing GPS monitoring systems is to use electronic devices to jam GPS or GSM radio signals. The advantages of the method are that the impact occurs remotely, without direct penetrating contact in the device's piping circuit or circuitry. What happens in the tracking system when we activate nearby (for example, in the vehicle cabin) a GPS or GSM jammer? We have already discussed that the blocking of the signal does not threaten anything serious, since you cancel the data transmission to the dispatch server and are out of communication during this period. But at the moment the jammer is turned off, the data for the entire trip (during this period they were stored in the device’s memory) will be immediately received by the dispatcher. Accordingly, unauthorized routes of the driver will be displayed on the computer screen.

If the GPS signal is jammed, things will look different. In this case, the location of the vehicle simply disappears from the monitor screen, while the coordinate data will not be stored in memory, since there are no satellite signals to create them. Everything would be fine, but the method will work only with the simplest devices called GPS trackers, they cannot additionally connect to vehicle signals, with the exception of power connections. GPS service specialists, without exposing you on the spot, will not be able to explain to the customer the riddle in which, after leaving the garage, the car miraculously disappears from the monitor screen, and miraculously reappears upon return. You can figure out the driver's trick to the representative of the GPS installer by driving with him during working hours. When a system is installed in a vehicle that is a little more complicated than the simplest tracker, then there is no point in a GPS jammer, since the data from the signal wires - fuel system data, ignition, engine speed (tachometer) - will be transmitted and displayed on the computer screen, which will confirm the system's operability, thereby compromising the actions of the driver. Certain systems, such as Glonass GPS, can still connect to the speedometer. And if the GPS system loses the signal, the dispatcher will see the real mileage on the screen! The method is not bad, but it is designed only for young, inexperienced companies of system installers. Seasoned representatives will bite the driver in an instant. The method earned a "C" on our scale.

Perhaps there are no more ways to intervene in the mechanisms of the terminal at an amateurish level. Let us examine in detail the following component of the GPS control system:

Methods of intervention in the FLS - Fuel Level Sensor.

Theoretical information. The fuel level sensor (FLS) is a design consisting of: a measuring part - 2 tubes of different diameters (one is inside the other) and a computing part (there is a housing at the top that carries the controller board, as a rule, it is filled with a gasoline-resistant compound that prevents an aggressive environment from affecting the radio elements (oil, gasoline, diesel fuel, etc.). All sensors have the same principle of operation for measuring the liquid level - a change in the electrical capacity in the "capacitor plates" by the sensor tubes, depending on the medium being measured. And the output signal itself may vary. There are modifications with an analog signal at the output (0-5 V or 0-10 V), frequency (changing the frequency of the output signal from the sensor), and digital - RS-232. It is most protected from possible interference when transmitting data to the terminal. The computing part of the FLS is made either in a non-separable form, sealed (DUT Strela, DUT Control, etc.), or disassembled, and it is possible to seal the sensor cover (DUT-E com Mrs. Technoton). It should be remembered that there is no “handle” in nature for twisting the readings of the FLS. And there are the following "combinations":

1. Wire shorting, which go from the FLS to the body of the TS - minus or to the plus of the TS. The system will temporarily be non-functional, but nothing global will happen. When the wires are put back, the sensor will become operational again thanks to the built-in protection against voltage changes in the on-board network and power pole reversal. Summarizing, I will say: the method is ineffective or completely ineffective. All connection nodes are sealed by installers, and it will not work without breaking the seals. The authorities will figure you out instantly, the method receives the minimum score - “one”!

2. Watering with boiling water. Some believe that in winter one can take advantage of the temperature difference and thus upset the calculation unit by heating hot water, pouring it onto a cold sensor. One driver confessed to me in this unseemly matter. He did not doubt the success of the technique, and every day arranged a "bath" for six months, but did not wait for the fruits of the experiment. The arrow heroically withstood these torments. For the future, I want to explain to experimenters why the method is useless. The body of the FLS is metal and therefore quickly transfers the received heat to the fuel tank. There is also a plastic case, because of this, the sensor is generally difficult to heat up, because plastic is a poor conductor of heat. Considering all that has been said, and remembering the gel-like compound that securely fixes the board and protects it from contacts with the sensor body, we can say for sure that such schemes will not work. True, there are not so many chances to get caught by the leadership - we put a solid “four” to the method.

3 . Another rather bold undertaking - physically break the sensor, which is mounted on a full-height tank, and desperate young people are trying to pull it off. We climb onto the tank (it's good to have a significant weight), and jump up, pushing through the lid of the tank with our weight. Thus, we try to break the measuring tube on the sensor. Everything seems simple, but again it is not. The technology of installing the FLS in the tank always calculates a gap of 1.5 to 3 cm between the bottom of the tube on the sensor and the bottom of the tank. And you need to make a big effort to flush the tank so deeply. In addition, individual sensors are equipped with a spring, it is installed at the end of the FLS tube and will resist the attempts of a jumping craftsman (such sensors are manufactured by Technoton). And, of course, it will not work to deceive the installer that "it broke by itself", and the driver of the vehicle is innocent. You have to pay - the guarantee does not apply here. Who pays for the repair depends on the decision of the owner of the vehicle.

I also include the banal cases when the sensor tubes are bent by fittings with the fuel tank open. The method is rated low for easy detection and a large fine for broken equipment.

4. Against the background of the simplest schemes for deceiving the system, this method looks like something fresh: seal the holes at the air drainage, which is located at the top of the FLS, under the cover with "intelligence". One or more holes are used so that the liquid indicator on the sensor can change along with the overall level in the tank. If we seal it, we get the absence of changes in the amount of fuel over time. That is, a straight line will be visible to the dispatcher on the fuel graph. The main inconvenience of this method is that it is realistic to get to the holes only if the sensor mount on the tank is disconnected. The Technoton company seals its fastening of the FLS, this is provided for by its design and equipment. Other manufacturers such as Arrow, Control, etc. do not put seals on their fasteners.

5. A memorable incident from personal experience. The driver confessed to having found and tested the following advice online. In accordance with the "guidelines" found, one should pour on moving equipment, and after a while drain about 20 liters of fuel from the tank. According to the assurances of the author from the Internet, a 100% true trick: the device instantly goes crazy and then should freeze for good. But I will say with all responsibility, this is nonsense! Drivers, don't make a circus, playing with fuel and lubricants on the go - this way you can "kill" a car without achieving a result. There is a much more "intelligent" option, which is discussed below ...

6. Draining fuel from the "return". In fact, perhaps, a unique way to “smartly” bypass almost any control system in which a fuel level sensor (FLS) is used. The idea of ​​the method is that with a slight selection of fuel, it will not be possible to automatically distinguish between a drain and an increased consumption of fuel and lubricants. The usual version is to cut a tee with a tap, through which fuel flows in a thin stream into the canister. During the shift, a lot can be poured, while the system will not catch the drain. The same action occurs during the fuel selection from the “stove”, using diesel fuel as a fuel. This method is correct only under 2 conditions: an illiterate dispatcher who is too lazy to understand situations in detail and a careless mechanic (garage manager) who looks through his fingers at what is happening and fully understands where and which driver put the tee. If luck accompanies, and the mentioned persons did not agree with the drivers, then it is unlikely to drain from the return line. The dispatcher will promptly note the increased consumption of the vehicle, and the mechanic, without wasting time, will catch the driver “red-handed” on the way. In case of failure, it will not be easy for the driver to explain the reason for the “invasion” of the fuel line of the vehicle. The “five” method according to our scale.

7. We should also remember the most risky way to deceive GPS/GLONASS monitoring systems. I call it "Riding in Russian." The essence of the idea is that while the vehicle is moving, disconnect the "mass", the diesel will continue to function and the car will be completely de-energized, as well as the navigation unit. If the system has an internal battery, the device will detect the coordinates of movement on the route, but when there is no battery, the system will display a “jump” from one point to another. This method requires a highly qualified driver, since only an experienced, and in some way crazy driver can afford to drive a completely de-energized car, with electrical appliances turned off.

Summing up the review on this issue, I note the following: any of the listed options for deceiving the navigation system and satellite control will be successful only when the driver control department works carelessly. We have a fairly large circle of client companies that are negligent in the operation of equipment, and this is money thrown away. However, there are also enterprises that follow the operation of the system in an exemplary manner, their spent funds paid off in 1-2 months, and in the rest of the time the funds will be saved. Time, as you know, is money, and a lot of it.