RU103686U1 - SUBSCRIBER TELEMATIC TERMINAL CSM / VHF MODEM - Google Patents

Abstract

 1. A subscriber telematic terminal with a GSM / VHF modem consists of a subscriber terminal, which includes: a control controller board, on which are located: a control microcontroller, a GSM / VHF modem, a three-axis mechanical accelerometer, flash memory, a GPS / GLONASS receiver , an intelligent power switch with a block of timers and technological inputs / outputs, to the inputs of which control commands are sent from the user, as well as a battery, LED indicators, GLONASS / GPS antenna connected to the radio frequency input of the GLONASS / GPS receiver, a GSM antenna connected to the radio frequency connector of the GSM / VHF modem, as well as a laptop or personal computer, a personal digital assistant, having access to the Internet, to which a telematics server is also connected, while the GLONASS / GPS is connected to the control microcontroller, the information outputs of which are connected to the inputs of a three-axis mechanical accelerometer, the outputs of the GSM / VHF modem are connected to the inputs of the control microcontroller, the information outputs of which connected to flash memory, the control microcontroller is equipped with a port for programming it, which is technological inputs / outputs, the battery outputs are connected to the control controller board, the signal outputs of which are connected to LED indicators, an intelligent power switch with a timer unit included in it the subscriber terminal communicates with the telematics server via TCP / IP. ! 2. The terminal according to claim 1, in which the smart power switch contains two 32-bit

Description

A useful model for positioning systems for moving objects (vehicles, people, animals) by signals from space navigation systems and their monitoring in order to control and track their movement, as well as obtain information from sensors installed on a moving object.

The scope covers areas related to tracking courier deliveries or transportation of valuable goods, dispatching public or special vehicles, security systems for private vehicles, amateur tourism, geological expeditions, search systems for stolen cars, etc.

From the prior art are known:

1) A subscriber terminal (see the patent of the Russian Federation for the invention RU 2351074 C2, publ. 03/27/2009), providing two-way communication between subscribers in the voice and message mode in the coverage area of cellular networks in the region and in the mode of transmitting messages throughout the territory region.

2) A subscriber terminal (see the patent of the Russian Federation for the invention RU 51433 U1, publ. 02/10/2006), to ensure public safety, remote monitoring of the status of objects, information and protection of firms, complexes, banks, premises and management of parameters of objects of technical systems.

3) The telematics module of the vehicle monitoring system (see the patent of the Russian Federation for utility model RU 65658 U1, published on 08/10/2007), intended for use as part of the telematics system as subscriber equipment installed on the vehicle. Due to the possibility of using both the GLONASS receiver and the GPS receiver, it provides better monitoring of the vehicle’s location and its parameters.

The disadvantages of the above known from the prior art subscriber terminals are:

- low reliability of the autonomous functioning of the subscriber terminal when it is running on the built-in battery;

- the inability to save power consumption of the subscriber terminal when the subscriber terminal is stationary;

- the inability to remotely force on / off the energy-saving mode by the user, regardless of whether the monitored object is in motion or stationary.

The objective of the claimed utility model is to eliminate the above disadvantages of subscriber terminals known from the prior art.

The technical result of the claimed utility model is to increase the reliability of communication, as well as reduce cash costs for tracking a mobile object.

The use of a telematics terminal will allow:

- increase the effectiveness of control and efficiency;

- increase the automation of response processes and interactions;

- increase the security level of the monitored moving object.

The use of GPRS technology, which allows packet data transmission via GSM-communication, significantly reduces the cost of tracking a mobile object.

The claimed subscriber telematic terminal with a GSM / VHF modem provides the subject (user) with a monitoring device and special software (software) with navigation information about a moving object with navigation equipment (telematics terminal) installed on it at any time. The provision of navigation information displayed on an electronic map of the area occurs using the resources of the Internet and a telematic server both without the mediation of dispatch services, and with their involvement.

The problem is solved in that the following technical solutions are used in a subscriber telematic terminal with a GSM / VHF modem:

- the use of an intelligent power switch (ICP) circuit to provide an energy-saving mode with an improved operation algorithm that allows you to turn off the power supply of the subscriber terminal in case of long-term motionlessness of the monitored object and enable it to resume the movement of a moving object, while additionally it is possible to remotely enable / disable the energy-saving mode by command from a telematic server;

- the use of the interaction of the subscriber terminal with the telematics server via the GSM / VHF communication channel to conduct periodic testing of the subscriber terminal installed on the moving object and obtain reliable information about its performance with automatic recording of test results in the event log;

- implementation of the possibility of the user receiving information about the status of sensors connected to the subscriber terminal by sending the user control commands to the telematic server.

A subscriber telematics terminal with a GSM / VHF modem (hereinafter referred to as a subscriber terminal) provides accurate navigation and reliable operation through the use of a powerful computing core, a highly informative graphical interface and an expanded software help system, an integrated navigation data base. In addition, the stability of performance indicators under operating conditions is ensured through the use of a technological platform in the design of the subscriber terminal, the main components of which are:

- a small-sized economical module of a navigation receiver having 24 programmable universal radio channels for receiving signals from GLONASS / GPS navigation systems and operating on all navigation spacecraft of these systems located in the radio visibility zone;

- a mechanical three-axis accelerometer (together with the necessary software), which allows, regardless of the signals of the navigation receiver, to determine the presence and absence of movement of the tracked object. Thus, due to this property of the accelerometer, in the case of prolonged immobility of the tracked object, the navigation receiver can be turned off to save energy. Subsequent switching on of the navigation receiver will occur according to the accelerometer signal about the beginning of the movement of the tracked object;

- technologies for the use of lithium-polymer batteries with the highest specific energy density available today.

The claimed subscriber telematic terminal provides the following functions:

- determination of coordinates and motion parameters of a moving object based on the signals of satellite navigation systems GLONASS and GPS;

- control of the location of a moving object in a predetermined area or movement along a predetermined route.

The determination of coordinates and motion parameters of a moving object is possible in the following operating modes:

- "on-line" mode - every minute determining the location of an object;

- automatic transmission of data about a specific location after a given (customizable) time interval from 30 seconds to 1 hour;

- a mode for determining coordinates and motion parameters at the request of the user (subject).

To control the operating modes of the subscriber terminal, as well as to make additional settings, it provides the development of special commands sent to the subscriber terminal using the TCP / IP data exchange protocol.

The subscriber terminal provides LED indication of the following operating modes:

- steady reception of navigation data;

- unstable reception of navigation data;

- lack of product registration in the GSM network;

- the presence of registration of the subscriber terminal in the GSM network in the absence of communication with the telematic server;

- the presence of registration of the subscriber terminal in the GSM network in the presence of communication with the telematic server.

The signs and essence of the claimed utility model is explained in the following drawings, which show the following:

Figure 1 - functional diagram of the claimed subscriber telematic terminal, where:

1 - spacecraft navigation systems GLONASS / GPS;

2 - subscriber terminal;

3 - GLONASS / GPS antenna;

4 - control controller board;

5 - lithium polymer battery;

6 - LED indicators;

7 - GSM antenna;

8 - means of providing GPRS-exchange (GSM-operator);

9 - the Internet;

10 - laptop / personal computer (PC);

11 - pocket personal computer (PDA);

12 - telematic server;

13 - three-axis mechanical accelerometer;

14 - flash-memory;

15 - GLONASS / GPS receiver;

16 - GSM / VHF modem;

17 - control microcontroller;

18 - technological inputs / outputs;

19 - intelligent power switch;

20 - block timers;

21 - data bus.

Figure 2 - structural-functional diagram of the ICP, where:

21 - Bus exchange with a control microcontroller

22 - Power Switch

23 - Timer lack of movement T1

24 - Timer waiting for confirmation from the T2 server

25 - Energy saving timer T3

26 - timer T4

27 - Timer tracking tracking T5

28 - Motion Recorder

The functional diagram of a universal subscriber telematics terminal with a GSM / VHF modem, shown in Fig. 1, consists of a subscriber terminal (pos. 2), which includes: a control microcontroller board (pos. 4), on which are located: a control microcontroller (pos. .17), GSM / VHF modem (pos. 16), three-axis mechanical accelerometer (pos. 13), flash memory (pos. 14), GLONASS / GPS receiver (pos. 15) intelligent power switch (pos. 19) ) with its block of timers T1 ÷ T5 (pos. 20) and technological inputs / outputs (pos. 18). The subscriber terminal also includes: a lithium-polymer battery (pos. 5), LED indicators (pos. 6), a GLONASS / GPS antenna (pos. 3), connected to the radio frequency input of the GLONASS / GPS receiver (pos. 15), GSM antenna (pos. 7) connected to the radio frequency connector of the GSM / VHF modem (pos. 16). The GLONASS / GPS receiver outputs (pos. 15) are connected to the control microcontroller (pos. 17), the information outputs of which are connected to the inputs of a three-axis mechanical accelerometer (pos. 13). The outputs of the GSM / YKB modem (pos. 16) are connected to the inputs of the control microcontroller (pos. 17), the information outputs of which are connected to the flash memory (pos. 14). The control controller is equipped with a port for programming it, which is a technological input / output (pos. 18). The outputs of the lithium-polymer battery (pos. 5) are connected to the control controller board, the signal outputs of which are connected to the LED indicators (pos. 6).

In addition to the subscriber terminal (pos. 2), the composition also includes a mini-laptop (pos. 10) and a personal digital assistant (pos. 11) that have access to the Internet (pos. 9), to which a telematic server is also connected (pos. 12). )

The principle of operation of the claimed subscriber terminal is based on the principle of determining the location of a moving object from GNSS signals and monitoring a moving object using a telematic server,

When applying voltage from the battery 5 to the control controller board 4, navigation signals from the spacecraft of the GLONASS / GPS 1 navigation systems are received by the receiving GLONASS / GPS antenna 3. From the output of the GLONASS / GPS 3 antenna, the navigation signals are transmitted through the antenna connector to the low-noise amplifier of the receiver input signals GLONASS / GPS 15 navigation signals, where they are amplified, then to the power divider of the input signals, where they are divided into two signals, one of which is fed to the input of the radio frequency module I am GLONASS, and the other to the input of the GPS radio frequency module. In these modules, a quadrature signal is generated by multiplying the input signal of the radio-frequency module by the sine and cosine components of the signal of the reference generator. The quadrature signal is filtered by a filter and amplified by an amplifier with a variable gain to the level necessary for the operation of the analog-to-digital converter. The amplified signal is fed to the inputs of a two-channel analog-to-digital converter, the output of which produces two streams of digitized samples corresponding to the components of the quadrature signal. In the GLONASS / GPS 15 receiver, GLONASS / GPS signals are received, converted, processed and the results of solving the navigation problem — the navigation parameters (time, coordinates, ground speed vector) of the moving object on which the subscriber terminal is installed — are output. At the same time, navigation signal reception modes are provided both from two space navigation systems (GLONASS / GPS), and only from any one system at the request of the user. The choice of the mode of receiving navigation signals is set by the user by applying special control commands to the technological inputs of the subscriber terminal.

The navigation parameters are transmitted via the UART asynchronous serial port (Universal Asynchronous Receiver / Transmitter) of the GLONASS / GPS receiver to the control microcontroller 17 and then through the GSM / VHF modem 16 and GSM-antenna 7 to the telematics server 12.

The communication of the subscriber terminal 2 with the telematics server 12 is carried out using the TCP / IP protocol, which provides greater reliability, since this protocol checks for errors and exchanges confirmation messages. Data is sent in packets (TCP segments), which consist of TCP headers and data. The TCP protocol provides reliable operation because it uses checksums to verify data integrity and send acknowledgments to ensure that the transmitted data is received without distortion.

The use of GPRS technology, which allows packet data transmission via GSM-communication, significantly reduces the cost of tracking a mobile object.

If it was not possible to establish a connection with the telematics server 12, the navigation parameters received from the GLONASS / GPS receiver 15 are accumulated in the internal non-volatile FLASH memory 14. When communication with the telematics server 12 is established, the 14 navigation data stored in the internal non-volatile FLASH memory begins parameters about the movement of a moving object to a telematics server 12.

The transmission of navigation parameters about the movement of a moving object to the telematics server 12 can occur in one of the following modes:

- “on-line” mode - sending navigation parameters about the movement of a moving object every minute;

- automatic transmission of navigation parameters about the movement of a moving object through a predetermined (adjustable) time interval from 30 seconds to 1 hour;

- transmission mode of navigation parameters about the movement of a moving object at the request of the user.

The choice of the transmission mode of the navigation parameters is set by the user by applying special control commands to the technological inputs of the subscriber terminal 18.

The navigation parameters of the moving object transmitted via GSM-communication via GPRS to the telematics server 12 are used to display the location of the monitored object on an electronic map (on the user's PC 10 monitor screen).

Light indicators are used to indicate the operation modes of the subscriber terminal.

Simultaneously with the operation process of the navigation receiver described above, when the power supply is supplied to the control controller board, the GSM / VHF modem is turned on and initialized, the SIM card is checked and the subscriber terminal is registered in the GSM network. Connection to the telematics server occurs via the GSM-communication channel using GPRS technology.

The three-axis mechanical accelerometer of the subscriber terminal, regardless of the signals of the navigation receiver, determines the presence and absence of movement of the tracked object. In the case of prolonged immobility of the monitored object, the navigation receiver is turned off to save battery power. Turning off and then turning on the navigation receiver when resuming the movement of the monitored object occurs at the command of an intelligent power switch (ICP) located on the control controller board.

The main features of the ICP are:

- the ability to work in one of three modes of low consumption:

1) standby mode;

2) low energy consumption mode with working real-time clocks;

3) low energy consumption mode;

- the ability to start from standby mode by an external interrupt signal or a signal from a real-time clock;

- the presence of two 32-bit and two 16-bit timers;

- the presence of a watchdog timer;

- the presence of low-power real-time clock with independent power and a separate clock input;

- the possibility of programming within the system (ISP) and within the application (IAP) using the built-in loader program.

Using the motion sensor, which is a mechanical triaxial (XYZ) accelerometer with integrated electronics, the state (rest or movement) in which the product is currently located is determined.

When the product is working, a log of changes in the state of the product with a time reference is automatically maintained. The current settings and the operation log are stored in the Data Flash. Log reading from Data Flash is carried out through technological inputs / outputs (pos. 18) using a special utility.

The date, time and description of the event that occurred as a result of which the change in the state of the ICP is recorded in the log of changes in the state of the ICP.

There are several states of operation of the ICP:

1) Power on and off;

2) Power on timer;

3) Inclusion upon the movement;

4) Power off with confirmation from the server;

5) Power off without confirmation from the server.

Table 1 A sample view of the log of the work date of Time Event 02.02.2009 11:10:20 shutdown of the subscriber terminal with confirmation from the server 02.02.2009 12:23:20 inclusion of the subscriber terminal upon the movement 02.02.2009 18:34:13 shutdown of the subscriber terminal without confirmation from the server 02/03/2009 02:34:13 switching on the subscriber terminal at the end of the energy-saving timer 02/03/2009 02:44:13 switching off the subscriber terminal at the end of the short-time timer

Application of the claimed subscriber telematic terminal with a GSM / VHF modem will allow:

- increase the effectiveness of control and efficiency;

- increase the automation of response processes and interactions;

- increase the security level of the monitored moving object.

Claims (2)

1. A subscriber telematic terminal with a GSM / VHF modem consists of a subscriber terminal, which includes: a control controller board, on which are located: a control microcontroller, a GSM / VHF modem, a three-axis mechanical accelerometer, flash memory, a GPS / GLONASS receiver , an intelligent power switch with a block of timers and technological inputs / outputs, to the inputs of which control commands are sent from the user, as well as a battery, LED indicators, GLONASS / GPS antenna connected to the radio frequency input of the GLONASS / GPS receiver, a GSM antenna connected to the radio frequency connector of the GSM / VHF modem, as well as a laptop or personal computer, a personal digital assistant, having access to the Internet, to which a telematics server is also connected, while the GLONASS / GPS is connected to the control microcontroller, the information outputs of which are connected to the inputs of a three-axis mechanical accelerometer, the outputs of the GSM / VHF modem are connected to the inputs of the control microcontroller, the information outputs of which connected to flash memory, the control microcontroller is equipped with a port for programming it, which is technological inputs / outputs, the battery outputs are connected to the control controller board, the signal outputs of which are connected to LED indicators, an intelligent power switch with a timer unit included in it the subscriber terminal communicates with the telematics server via TCP / IP. 2. The terminal according to claim 1, in which the smart power switch contains two 32-bit and two 16-bit timers, a watchdog timer, low-power real-time clock with independent power supply and a separate clock input, and is configured to operate in three low-power modes, starting from standby mode by an external interrupt signal or a signal from a real-time clock and the possibility of programming inside the ISP system and inside the IAP application using the bootloader program.