DE202008017837U1 - Dual navigation terminal - Google Patents

Abstract

Dual navigation terminal with a first voltage stabilizer (19) for 4.5 V and a second voltage stabilizer (18) for 3.3 V, with a modem (5) for processing the signals from a GSM network (GSM = Global System for Mobile Communication ) and a GPRS (General Pocket Radio Service) network, with a combined receiver (6) for simultaneous operation in a global navigation satellite system (GLONASS network, Russia) and a global positioning system (GPS, USA), with a converter ( 14) for implementing the RS-232 level of the logic levels in the levels of the RS-232 interfaces, with a microcontroller (11) for the program of GSM and GPRS networks, with a connector (2) for a connection of a GSM antenna (20) with a connector (3) for a connection of a GLONASS / GPS antenna (21), with a first input-output port (15) for switching the power supply and the microcontroller (11), with a second input-output port (16) for external actuators and encoders and with a third input-output port (17) for programming the microcontroller (11),
characterized,...

Description

The Invention relates to a dual navigation terminal (DNT) with a first voltage stabilizer for 4.5 V and one second voltage stabilizer for 3.3 V, with a modem for processing the signals from a GSM network (GSM = Global System for Mobile Communication) and a GPRS network (GPRS = General Pocket Radio Service), with a combined receiver for simultaneous Operating in a global navigation satellite system (GLONASS network, Russia) and a global positioning system (GPS, USA), with a translator to implement the RS-232 level of the logic levels into the levels of RS-232 interfaces, with a microcontroller for the program of GSM and GPRS networks, with a plug connection for a connection of a GSM antenna, with a plug connection for connecting a GLONASS / GPS antenna, with a first input-output port for switching the power supply and of the microcontroller, with a second input-output port for external actuators and encoders and with a third input-output port for programming the microcontroller.

Of the DNT can provide telematic services to network operators GSM (Global System for Mobile Communication) system / GRPS system (Global Packet Radio Service).

The Most DNT make a set of serially connected microcircuits (Microchips). The DNT usually has a GSM modem, a microcontroller microcontroller (processor), a two-system GLONASS receiver (Global Navigation Satellite System) / GSM receiver (Global Positioning System) and an input-output port.

It is a mobile communication terminal for the GSM networks (Global System of Mobile Communications) known in the utility model RF No. 32652 of 05.05.2003 is described. The mobile communication terminal for the GSM networks consists of the following components: one GSM modem, a navigation unit (GPS or GLONASS receiver), a processor, a switch and an input-output port.

Of the Lack of this device is that it is impossible is, simultaneously with two satellite navigation systems (SNS) such as GPS (USA) and GLONASS (Russia) work. consequently is a low reliability in the coordinate determination in front. The further deficiency of the known device is that of Operation only in a GSM network (only with a network operator) comes about. This is clearly insufficient in case of power failure or the effect of an electronic (radio-technical) fault (GSM Signalabdämpfung). Another shortcoming is that no reproduction of the received navigation data (copying) is provided in a non-volatile memory. This causes a data loss during power failure or temporary Power failure.

It is a mobile terminal for GSM networks known in the Utility Model RF No. 32653 of 14.05.2003 is described. This Mobile terminal for GSM networks includes the following components: a GSM modem, one navigation unit, two processors, one input-output unit, two memories and one input-output port.

This Mobile terminal has the defect, namely too small Reliability because it only works in a GSM network can.

It is a navigation communication terminal known in the utility model RF No. 32943 dated 26.05.2003 is described. The navigation communication terminal includes the following components: a GSM modem, a GPS receiver, a processor, a Bluetooth wireless device and a Input-output port.

Of the Shortage of this navigation communication terminal is its low Reliability in the determination of coordinates, because it only in a network SNS / GPS (USA) can be operated.

The state of the art, for example, in the journal "Elektronnyje Komponenty" (electronic components), issue no. 4, 2007, article "Subject-specific VLSI as basis for digital navigation receiver GLONASS / GPS" by Igor Kornejev, Vladimir Nemudrov, Vadim Polytsikov and Oleg Lagutin described. It is known from this prior art that the simultaneous use of both systems - GLONASS (Russia) and GPS (USA) - allows to radically increase the accuracy of coordinate determination to the level unattainable in any autonomously used system is.

The DE 69 222 704 T2 describes a radio receiver capable of receiving signals from different transmission systems with substantially unrelated frequency characteristics, using common components to receive the signals from different systems to reduce costs. In this radio receiver are two frequency-reducing converter, which are fed by local oscillator signal sources used. Furthermore, a frequency synthesis circuit is provided which the Sig has sources and is coupled to a reference oscillator. The receiver can be tuned to the different reception frequencies.

Special Arrangements to increase security when receiving the Frequencies and when storing the received navigation data not provided in this known receiver.

Also the WO 01/39364 A1 shows a receiving system for the signals sent by two systems, the GLONASS and the GPS network, consisting of a mere filtering of the signals given at different frequencies. Special security precautions are not provided in this receiving system.

The US 61 27 945 A shows a portable navigation device with which the geographical location can be determined and displayed on a display panel. The device has a data-card receptacle for entering data for a particular connection, including data for an RS-232 connection.

Finally, the shows US 2007/0188448 A1 a device for a first use case and an alternative use case with a keypad and a display field. In this case, a separate button is provided for switching. In this way, signals from two different systems can be received in a simple manner and also signals that are matched to these applications can be transmitted.

All these known systems can probably work with two networks, but special precautions are to increase the transmission security unavailable.

• – die Sicherheit und die Richtigkeit beim Empfang von Satelitten-Navigationsdaten von zwei Netzen, dem SNS/GLONASS-Netz (Russland) und dem GPS-Netzen (USA) durch Einführung von einem Zweisystem-Satellittennavigationsempfänger (SNE) GLONASS/GPS und
• – die Zuverlässigkeit beim Senden und Empfang sowie bei der Datenspeicherung über die Kanäle der GSM-Netze durch die Einführung von einem Multiplexer, drei Einheiten für antistatischen Schutz, für die zwei SIM-Kartenleser und einen SD/MMC-Kartenleser, und durch die Umverteilung der Funktionen zwischen den einzelnen Baugruppen des Zweisystem-Navigationsterminals

erhöht ist.It is an object of the invention to provide a DNT of the type mentioned, in which as a technical result

• - the safety and accuracy of receiving satellite navigation data from two networks, the SNS / GLONASS network (Russia) and the GPS networks (USA) through the introduction of a two-system satellite navigation receiver (SNE) GLONASS / GPS and
• Reliability of transmission and reception as well as data storage via the GSM network channels through the introduction of a multiplexer, three antistatic protection units, two SIM card readers and one SD / MMC card reader, and the redistribution of the Functions between the individual assemblies of the two-system navigation terminal

is increased.

The Asked object is solved by the features of claim 1.

• – einen ersten Spannungsstabilisator für 4,5 Volt und einen zweiten Spannungsstabilisator für 3,3 Volt,
• – ein GSM/GPRS Modem; das Modem ist so ausgeführt, dass es den Betrieb gleichzeitig im Global System for Mobile Communications (GSM) und im General Packet Radio Service (GPRS-System) ermöglicht,
• – einen kombinierten GLONASS/GPS-Empfänger; der Empfänger ist so ausgeführt, dass er gleichzeitig im globalen Navigationssatellitensystem Russlands (GLONASS) und im Global Positioning System von den USA (GPS) betrieben werden kann,
• – einen Umsetzer für die RS-232 Ebene; er dient zum Umsetzen der logischen Ebenen der CFET (3,3 V) in die Ebenen der RS-232 Schnittstelle,
• – einen Mikrokontroller,
• – eine Steckverbindung für den Anschluss der GSM-Antenne,
• – eine Steckverbindung für den Anschluss der GLONASS/GPS-Antenne,
• – einen ersten Eingabe-Ausgabe-Port für die Schaltung der Stromversorgung und dem PC,
• – einen zweiten Eingabe-Ausgabe-Port für die Schaltung von externen Stellgliedern und Gebern und
• – einen dritten Eingabe-Ausgabe-Port für das Programmieren des Mikrokontrollers.

The DNT contains in a known manner:

• A first voltage stabilizer for 4.5 volts and a second voltage stabilizer for 3.3 volts,
• A GSM / GPRS modem; The modem is designed to operate simultaneously in Global System for Mobile Communications (GSM) and General Packet Radio Service (GPRS),
• A combined GLONASS / GPS receiver; the receiver is designed to be simultaneously operated in the global navigation satellite system of Russia (GLONASS) and in the Global Positioning System of the USA (GPS),
• A converter for the RS-232 plane; it converts the logic levels of the CFET (3.3V) into the levels of the RS-232 interface,
• A microcontroller,
• - a plug connection for the connection of the GSM antenna,
• - a connector for connecting the GLONASS / GPS antenna,
• A first input-output port for switching the power supply and the PC,
• A second input-output port for the switching of external actuators and encoders and
• A third input-output port for programming the microcontroller.

• – einen ersten SIM-Kartenleser (SIM: Subscriber Identification Module) und einen zweiten SIM-Kartenleser. Die SIM-Kartenleser dienen zum Einlesen der Daten, welche in SIM-Karten gespeichert sind und für die Authentisierung des Zweisystem-Navigationsterminals im GSM Netzwerk sowie für die Sicherstellung von einer ganzen Reihe von Anwendungsdienstleistungen erforderlich sind,
• – eine erste Einheit für antistatischen Schutz und eine zweite Einheit für antistatischen Schutz, der SIM-Kartenleser. Diese Einheiten dienen zur Vorbeugung von Beschädigungen der SIM-Karten, wenn diese in die SIM-Kartenleser eingesteckt/aus den SIM-Kartenlesern entnommen werden,
• – einen SD/MMC-Kartenleser (SD: Secure Digital, MMC: Multimedia Card), welcher für das Ablesen/Speichern von in SD- oder MMC-Karten gespeicherten Daten vorgesehen ist. Diese Karten sind für eine nichtflüchtige Speicherung der empfangenen Navigationsdaten erforderlich,
• – eine dritte Einheit für antistatischen Schutz des SD/MMC-Kartenlesers. Diese Einheit dient zur Vorbeugung von Beschädigungen der SD/MMC-Karten, wenn diese in die SD/MMC-Kartenleser eingesteckt/aus den SD/MMC-Kartenlesern entnommen werden;
• – einen Multiplexer, welcher für die Signalvermittlung zwischen dem GSM/GPRS-Modem und dem ersten SIM-Kartenleser und dem zweiten SIM-Kartenleser vorgesehen ist.

The DNT additionally comprises according to the invention:

• - A first SIM card reader (SIM: Subscriber Identification Module) and a second SIM card reader. The SIM card readers are used to read the data stored in SIM cards and are required for the authentication of the two-system navigation terminal in the GSM network as well as for securing a whole range of application services,
• - a first unit for antistatic protection and a second unit for antistatic protection, the SIM card reader. These units are used to prevent damage to SIM cards when they are plugged into SIM card readers / removed from SIM card readers,
• - an SD / MMC (SD: Secure Digital, MMC: Multimedia Card) card reader intended for reading / storing data stored in SD or MMC cards. These cards are required for non-volatile storage of the received navigation data,
• - a third unit for antistatic protection of the SD / MMC card reader. This unit is designed to prevent damage to the SD / MMC cards when they are inserted in the SD / MMC card readers / removed from the SD / MMC card readers;
• - A multiplexer, which is provided for the signal switching between the GSM / GPRS modem and the first SIM card reader and the second SIM card reader.

Further expedient and advantageous embodiments of DNT are apparent from the dependent claims, in particular the connections of the various assemblies.

The Invention will be described with reference to an embodiment shown in the drawing explained in more detail. It shows:

1 the structure diagram of a dual navigation terminal (DNT).

below The structure and operation of DNT are described in detail.

Out 1 it can be seen that the two-system navigation terminal 1 (DNT) a plug connection for the connection of a GSM antenna 20 having. The GSM antenna 20 is connected to this connector. The GSM antenna 20 receives and sends messages (data) from / to the base station (not shown in the drawing) and from / to the GSM / GPRS modem 5 , The GSM / GRPS modem 5 is with a multiplexer 4 and a microcontroller 11 connected. The micro-controls 11 is in turn with a translator 14 connected to the RS-232 level. The converter 14 for the RS-232 level comes with a first input-output port 16 connected.

In addition, the DNT contains 1 the connector for the GLONASS / GPS antenna 3 , This connector is the combined GLONASS / GPS antenna 21 and a GLONASS / GPS receiver 6 connected. The GLONASS / GPS receiver 6 is with the microcontroller 11 which in turn is connected to a second input-output port 15 and the multiplexer 4 connected is. DNT 1 contains additional multiplexers 4 that comes with a first SIM card reader 7 and a first unit 9 for antistatic protection. In addition, the multiplexer 4 with a second SIM card reader 8th and with a second unit 10 connected for antistatic protection. DNT 1 also includes an SD / MMC card reader 12 , which with the microcontroller 11 and a third unit 13 for antistatic protection.

Out 1 is also apparent that DNT 1 additionally a voltage stabilizer 19 for 4.5V contains. The voltage stabilizer 19 is with the GSM / GRS modem 5 and a voltage stabilizer 18 connected for 3.3V. The output of the voltage stabilizer 18 is simultaneous with a translator 14 the RS-232 level and a third input-output port 17 as well as with the microcontroller 11 and the GLONASS / GPS receiver 6 and the multiplexer 4 connected.

The DNT works as follows:
The message (the command) with the query about the local connection of DNT 1 is received. The SMS service (Short Message Service) or the GPRS technology is used. This message comes from the base station of the radio network operator (not shown in the drawing) to the GSM antenna 20 , Then the message about the connector of the GSM antenna 2 to the GSM / GPRS modem 5 Posted.

The GSM / GPRS modem 5 acts as a transceiver and receives and sends messages (data). Upon receiving the command to retrieve coordinates of respective geodetic points, the GMS / GPRS modem transmits 5 this command to the micro-control 11 , Here the routine is carried out according to the request of geodetic information provided by the GLONASS / GPS receiver 6 were received.

The signals from two SNS-GLONASS (Russia) and GPS (USA) (not shown in the drawing) are coming continuously to the combined GLONASS / GPS antenna 21 and continue via the connector of the antenna 8th into the GLONASS / GPS receiver 6 ,

It should be noted that the combined GLONASS / GPS receiver 6 from the analog and digital part (not shown in the drawing) consists. The combined GLONASS / GPS (navigation) receiver 6 is used to receive the signals from the GLONASS satellite navigation system (frequency sign from -7 to +12, standard accuracy signal) and GPS signal (coarse positioning signal (C / A).) The analogue part (RE Front End-FE) of the GLONASS / GPS receiver 6 provides filtering and amplification of input signals for both digitization. The analog part of the GLONASS / GPS receiver 6 is designed according to the scheme of the intermediate frequency receiver with double superimposition. The beat frequencies are generated from the frequency of the reference quartz generator according to the indirect synthesis method. The phase-frequency tracking loop (PLL) is used. The output signals of the analog part of the GLONASS / GPS receiver 6 represent binary signal counts of the second intermediate frequency (IF) of GLONASS and GPS, the Si gnal the clock frequency 61 MHz, the signal from the occupation frequency of PLL.

In the digital part of the GLONASS / GPS receiver 6 The further (hardware and software supported) digital signal processing comes about. The digital part of the GLONASS / GPS receiver 6 (not shown in the drawing) includes the super large integrated circuit (VLSI CIRCUIT), the "16-channel correlator", the processor, the memory (FLASH ROM) and the operating data memory (RAM).

It should be noted that the digital part of the GLONASS / GPS receiver 6 (not shown in the drawing) belonging to the "16-channel correlator" VLSI circuit has the working clock frequency of 30.5 MHz. It contains 16 correlation channels, the double transceiver (BIACT) type K8-232 with the FIFO size of 16 × 8 bits; the second mark shaper 1PPS; the real-time clock (RTC) and the interrupt signal shaper INT1 and the time scales (not shown in the drawing).

The GLONASS / GPS receiver 6 transmits the received data to the microcontroller 11 which evaluates the received coordinates of the geodesic points. The microcontroller 11 may perform the operation related to the data change by the predetermined value of the mean square deviation of the coordinates (standard deviation of the coordinates). The coordinates of the geodetic points are sent to the GSM / GPRS modem 5 sent and then via the connector for the connection of the GSM antenna 2 to the GSM antenna 18 forwarded. Furthermore, this data is sent to the base station of the GSM network operator (not shown in the drawing).

The coordinates of the geodesic points and the individual points on the earth's surface can be sent by means of SMS messages from the radio network operators or by means of the GPRS technology. The transmission channel is from the GSM / GPRS modem 5 established. The microcontroller 11 has the ability to view the coordinates of respective geodetic points received from the GLONASS / GPS receiver 6 were to be encoded.

In addition, all coordinates are transmitted via the SD / MMC card reader 12 recorded in the external non-volatile memory. This memory is located in the SD / MMC card reader 12 and serves to prevent the loss of data during power failure and to avoid the overflow of the internal data memory of the microcontroller 11 in the case of persistent disconnection (network failure) with the GSM networks, and consequently to avoid the impossibility of sending the coordinates.

The multiplexer 4 controls the operation of the first SIM card reader 7 and the second SIM card reader 8th , Since the SIM cards can come from different network operators, the DNT has 1 The ability to work in two mobile networks GSM / GPRS (but not at the same time). If that in the first SIM card reader 7 stored GSM network fails by a mobile operator (whose network is identified, for example by the first SIM card), so the multiplexer switches 4 on the GSM network of the second mobile operator to its network through the SIM card in the second SIM card reader 10 is identified.

In the case of external equipment for electronic radio control (electronic warfare EW) on the DNT 1 (not shown in the drawing) evaluates the microcontroller 11 the presence of a GSM signal. In the frequency band where the signal is not attenuated by any EW device, the microcontroller triggers 11 the command to multiplexer 4 out, the first SIM card reader 7 or the second SIM card reader 8th to join. The GSM modem 5 The messages or data will be received or transmitted continuously.

The first SIM card reader 7 and the second SIM card reader 8th are provided for reading the data from the memory of the SIM cards (not shown in the drawing). These data are for the authentication of the DNT 1 in the GSM network as well as to ensure a whole range of application services.

The SD / MMC card reader 12 is used to read / save the data stored in memory 80 or on the MMC cards. These cards are required for the non-volatile storage of the received navigation data.

The first unit 9 for antistatic protection and the second unit 10 For anti-static protection are used to prevent damage to the SIM cards when inserted in the first and the second SIM card reader 7 and 8th each inserted or removed therefrom.

The third unit 13 for antistatic protection is provided to prevent damage to the SD or MMC cards when the cards are inserted in or removed from the SD / MMC card reader.

The analysis of the presence of the GSM / GPRS network takes place at the software level in the microcontroller 11 which sends the commands for switching to the multiplexer 4 outputs. The GSM / GPRS modem 5 can be in some frequency range from 890-915 MHz and 935-960 MHz, 1710-1785 MHz and 1805-1880 MHz. Thus, the operational reliability of the DNT becomes 1 increased in GSM / GPRS power failure or in an electronic radio attenuation by the EW facilities.

DNT 1 has the ability to connect various encoders and devices (not shown in the drawing) to the input-output ports 15 . 16 and 17 can be connected.

When an event is reported by the donors (for example, due to triggering the fire alarm in the car), the donors to the second input-output port 15 are connected (not shown in the drawing), so this signal comes into the microcontroller 11 , Here the authentication (authentication) of the event takes place and there is a decision on sending a message (based on the algorithms stored in the memory of the microcontroller 11 filed) (not shown in the drawing).

In addition, while the messages are being sent by the donors (not shown in the drawing), geodetic data can also be transmitted which is stored in memory (not shown in the drawing) of the microcontroller 11 are stored and by SNE 6 were received.

After that, the GSM / GPRS modem sends 5 the message to the user. The message can be sent and received via SMS transmission service of the radio network operators or according to the technology of packet switching in the mobile GSM / GPRS networks. The transmission channel and transmission method are provided by the digital signal processor (not shown in the drawing) of the GSM / GPRS modem 5 selected. The message enters the modem 5 , the connector 2 and the antenna 20 and is sent to the base station (not shown in the drawing) of the GSM network.

The first input-output port 16 is used for switching with the power supply and the PC (not shown in the drawing). DNT 1 can be powered by the battery. The battery can be a rechargeable battery (not shown in the drawing). Power can also be supplied from an external source connected to the external power supply connector. This port is located on the first input-output port 16 ,

The second input-output port 15 is used for switching with external actuators and encoders (not shown in the drawing). This input-output port 15 has an analog and a digital output.

The third input-output port 17 is used to program the microcontroller 11 using a handheld programmer or a PC (not shown in the drawing).

The converter 14 for the RS-232 level is intended for the implementation of the logical levels of CFET (3.3V) in the interface levels RS-232.

The voltage for the power supply of the DNT 1 gets to the voltage stabilizer 19 of 4.5 volts and on to the voltage stabilizer 18 of 3.3V. Thereby, all components of the device are fed, including the converter 14 for the RS-232 level, the microcontroller 11 , the GLONASS / GPS receiver 6 and the multiplexer 4 , The GSM / GPRS modem 5 gets off the voltage stabilizer 19 fed with 4.5V.

The antistatic protection of SIM cards from mobile operators is by equipping the SIM card reader 7 and 8th with two units 9 and 10 ensured for antistatic protection.

To ensure anti-static protection of the SD / MMC cards, the SD / MMC card reader is used 12 with one unit 13 provided for antistatic protection.

The installation in the DNT 1 of the GLONASS / GPS receiver 6 for GLONASS (Russia) and GPS (USA) it is possible to simultaneously receive the satellite navigation signals from two SNSs. Thus, the object is achieved, namely to increase the reception reliability (accuracy) when receiving the satellite navigation data from two satellite navigation systems (SNS) GLONASS (Russia) and GPS (USA).

The multiplexer 4 was first in the DNT 1 in combination with the microprocessor 11 used to determine whether GSM networks exist to the radio network operators or whether the electronic radio attenuation by EW facilities exists. In addition, for the first time, the SD / MMC card reader was used to store the received navigation data in the external nonvolatile memory. Thus, the object is achieved, namely to increase the storage reliability and the transmission and reception of data via the channels of the GSM networks and ensure.

The production of the DNT 1 , this in 1 can also be carried out using standardized electronic radio-technical type components (REC).

The following REC can be used: GSM / GPRS modem 5 O20 from Motorola or SIM300DZ, the combined receiver 6 SNE GLONASS / GPS, for example, SNE TFAG50 from FGUP NIIMA PROGRESS and as a microcontroller 11 , for example, MEGA AVR ATMEGA 128L-8AU of the company ATMEL.

The multiplexer 4 can be used on the basis of microcircuits CD74AC157M, and the converter 14 for the RS-232 level, for example, based on MAX 3232ESE. As voltage stabilizers 19 for 4.5 V, the types are LM10841T-ADJ and as voltage stabilizers 18 used for 3.3 V types TPS76833QD.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 69222704 T2 [0011]
• WO 01/39364 A1 [0013]
• - US 6127945 A [0014]
• US 2007/0188448 A1 [0015]

Cited non-patent literature

• - "Elektronnyje Komponenty" (electronic components), issue no. 4, 2007, article "Subject-specific VLSI as basis for digital navigation receiver GLONASS / GPS" by Igor Kornejev, Vladimir Nemudrov, Vadim Polytsikov and Oleg Lagutin [0010]

Claims (12)

Dual navigation terminal with a first voltage stabilizer ( 19 ) for 4.5 V and a second voltage stabilizer ( 18 ) for 3.3 V, with a modem ( 5 ) for processing the signals from a GSM (Global System for Mobile Communication) network and a GPRS (General Pocket Radio Service) network, with a combined receiver ( 6 ) for simultaneous operation in a global navigation satellite system (GLONASS network, Russia) and a global positioning system (GPS, USA), with a converter ( 14 ) for implementing the RS-232 level of the logic levels in the levels of the RS-232 interfaces, with a microcontroller ( 11 ) for the program of GSM and GPRS networks, with a plug-in connection ( 2 ) for a connection of a GSM antenna ( 20 ), with a plug connection ( 3 ) for a connection of a GLONASS / GPS antenna ( 21 ), with a first input-output port ( 15 ) for switching the power supply and the microcontroller ( 11 ), with a second input-output port ( 16 ) for external actuators and encoders and with a third input-output port ( 17 ) for programming the microcontroller ( 11 ), characterized in that the dual navigation terminal (DNT 1 ) a first ( 7 ) and a second ( 8th ) SIM card reader (SFM - Subscriber Identification Module) for reading the data stored on SIM cards data of both GSM networks, which are required for authentication of a two-system navigation terminal in the GSM network and to ensure a range of application services that Card reader ( 12 ) for reading and storing data stored on SD (MMC) cards for non-volatile storage of the received navigation data, that a first ( 9 ) and a second ( 10 ) Antistatic protection unit are provided to prevent damage to the SIM cards when they are inserted in the SIM card readers ( 7 . 8th ) or from the SIM card readers ( 7 . 8th ) that a third unit ( 13 ) for anti-static protection of the SD / MMC card reader ( 12 ), which is used to prevent authorization of the SD / MMC cards when they are inserted in the SD / MMC card reader ( 12 ) or from the SD / MMC card reader ( 12 ) and that a multiplexer ( 4 ) for signaling between the GSM / GPRS modem ( 5 ) and the first and second SIM card readers ( 7 . 8th ) is provided for the two GSM networks. Dual navigation terminal according to claim 1, characterized in that the SIM card reader ( 7 . 8th ) for reading in data stored on SIM cards for authentication of the DNT ( 1 ) are used. Dual navigation terminal according to claim 1 and 2, characterized in that the SD / MMC card reader ( 12 ) is used for reading / storing data stored on SD or MMC cards which characterize nonvolatile received navigation data. Dual navigation terminal according to claim 1, characterized in that the first and second units ( 9 . 10 ) are used for anti-static protection to prevent damage to SIM cards when inserted into SIM card readers ( 7 . 8th ) or from the SIM card readers ( 7 . 8th ). Dual navigation terminal according to claim 1, characterized in that the third unit ( 13 ) is used for anti-static protection to prevent damage to the SD / MMC cards when inserted into the SD / MMC card reader ( 12 ) or from the SD / MMC card reader ( 12 ). Dual navigation terminal according to claim 1, characterized in that the multiplexer ( 4 ) for signaling between the GSM / GPRS modem ( 5 ), and the first and second SIM card readers ( 7 . 8th ) is used, that a fourth input-output of the multiplexer ( 4 ) with a first input output of the first SIM card reader ( 7 ) and a first input of the first unit ( 9 ) is connected for antistatic protection and that a fifth input-output of the multiplexer ( 14 ) with a first input output of the second SIM card reader ( 8th ) and a first input of the second unit ( 10 ) for antistatic protection. Dual navigation terminal according to claim 1, characterized in that a first input output of the GSM / GPRS modem ( 5 ) with a first input output of a connector plug for a GSM antenna ( 20 ), that a second input output of the GSM / GPRS modem ( 5 ) with a first input output of the microcontroller ( 11 ), that a third input output of the GSM / GPRS modem ( 5 ) with a first output of the multiplexer ( 4 ) and that a fourth input of the GSM / GPRS modem ( 5 ) at a first output of the voltage stabilizer ( 19 ) is connected for 4.5V. Dual navigation terminal according to claim 1, characterized in that a second input of the voltage stabilizer ( 19 ) for 4.5V at a first output of the first input-output port ( 16 ), that the first output of the voltage stabilizer ( 19 ) for 4.5 V at a first input of the voltage stabilizer ( 18 ) is connected for 3.3 V and that a second output of the voltage stabilizer ( 18 ) for 3.3 V simultaneously with a second input of the third input-output port ( 17 ) connected is. Dual navigation terminal according to claim 1, characterized in that a second output of the converter ( 14 ) of the RS-232 level, a second output of the microcontroller ( 11 ), a second output of the combined GLONOSS7GPS receiver ( 6 ) and a second output of the multiplexer ( 4 ) with the second output of the voltage stabilizer ( 18 ) for 3.3V and the second input of the third input-output port ( 17 ) connected. Dual navigation terminal according to claim 9, characterized in that the first input of the combined GLONASS / GPS receiver ( 6 ) at a first output of the connector of the GLONASS / GPS antenna ( 20 ), that a third input output of the GLONASS / GPS receiver ( 6 ) at a third input output of the microcontroller ( 11 ) and that a fourth input output of the microcontroller ( 11 ) at a first input output of a third input-output port ( 17 ) connected. Dual navigation terminal according to claim 1, characterized in that a fifth output of the microcontroller ( 11 ) with a first input of the second input-output port ( 15 ), that a second output of the second input-output port ( 15 ) is used for the transmission of analog data and with a sixth input of the microcontroller ( 11 ) and that a third output of the second input-output port ( 15 ) for transmitting digital data and with a seventh input of the microcontroller ( 11 ) connected is. Dual navigation terminal according to claim 11, characterized in that an eighth output of the microcontroller ( 11 ) at a third input of the multiplexer ( 4 ), that a ninth input output of the microcontroller ( 11 ) to a first input output of the converter ( 14 ) is connected to the RS-232 level, that a third input output of this converter ( 14 ) to a second input output of the first input-output port ( 17 ) and that a tenth input output of the multiplexer ( 4 ) to the first input output of the SD / MMC card reader ( 12 ) and a first input of the third unit ( 13 ) for antistatic protection.