RU71488U1 - TWO-SYSTEM SATELLITE NAVIGATION RECEIVER EXECUTED BY THE SYSTEM IN THE HOUSING TECHNOLOGY - Google Patents

Abstract

The utility model relates to satellite navigation receivers (SPS), which can be widely used for receiving navigation signals from two satellite navigation systems (SNA): the global navigation system GLONASS (Russia) and GPS (Global Positioning System) (USA).

The technical result of this utility model is to reduce power consumption through the use of analog and digital VLSI technology using the "system in the case" technology, the redistribution of functions between receiver elements.

The specified technical result is achieved due to the fact that CIP contains VLSI based on the "system-in-case" technology, which has an analog VLSI and digital VLSI, a GLONASS / GPS antenna connection connector, an input bandpass filter, two crystal oscillators and two bandpass filters, the input port output.

Description

The utility model relates to satellite navigation receivers (SPS), which can be widely used for receiving navigation signals from two satellite navigation systems (SNA): the global navigation system GLONASS (Russia) and GPS (Global Positioning System) (USA).

Most SNPs are structurally a set of series-connected units: a radio-frequency channel unit, a digital channel unit, a GLONASS / GPS antenna connection connector, and an input-output port.

The prior art is known and described, for example, in the book of Yu.A. Solovyov, "Satellite Navigation and Its Applications", Moscow: Eco-Trends, 2003, pp. 311-319, SPS, which operate in two GLONASS SNAs and GPS. The disadvantage of the described GLONASS / GPS SNPs is their high power consumption, which ranges from a few watts to 100 mW and, as a consequence, the inability to use in portable (mobile) devices (cell phones, smartphones, portable laptop computers, etc.). For example, the power consumption of the S-K-161 manufactured by RIRV (p. 311) is 1.3 W with a supply voltage of 3.3 volts, the current consumption is 0.39 A. With these parameters, the maximum operating time of the S-K-161 in a typical smartphone is whose battery has a capacity of 1.2 A * hour, will be about 3 hours, which is clearly not enough to solve navigation problems.

The GLONASS / GPS receiver is known, described in the journal Electronics: Science, Technology, Business, No. 3, 2004, in an article by Igor Korneev and Oleg Lagutin, TFAG50 Navigation Receiver. GLO-HACC / GPS receiver consists of the following components: analog part, digital part and input-output port. This SNP TFAG50 choose for the prototype.

However, this TFAG50 SNP has a drawback - it has too high power consumption. For example, the energy consumption of the prototype SNP TFAG50 is 0.65 W with a supply voltage of 3.3 volts, the current consumption is 0.17 A. With these parameters, the maximum operating time of the SNP TFAG50 in a typical smartphone, the battery power is 1.2 A * hour , will be about 7 hours, which is clearly not enough to solve the navigation problem.

The requirements of miniaturization with an increasing level of complexity of microcircuits bring super-large integrated circuits (VLSI) of the type "system in the case" or, in international terminology, "System in Package" (SiP) to the forefront of semiconductor developments. These circuits carry out the system functioning of several crystals inside one housing. The crystals are located on the same level or one above the other, supplemented with passive or other necessary components and form entire integrated modules in one housing, which ensure the full functioning of the final product, for example, a GLONASS / GPS receiver.

Thus, the technical result of this utility model is to reduce energy consumption through the use of analog and digital VLSI technology made in the "system in the case", the redistribution of functions between receiver elements.

The technical result is achieved due to the fact that the two-system satellite navigation receiver (SPS) made by technology

the "system in the case" contains an input connector for connecting a combined GLONASS / GPS antenna, an input band-pass filter designed to filter GLONASS (Russia) and GPS (USA) signals, an input-output port for connecting external devices and input-output commands contains analog and digital extra-large integrated circuit (VLSI), while analog VLSI is designed to amplify, filter signals from satellite navigation systems (SNA) GLONASS and GPS, analog-to-digital conversion, and digital VLSI is designed to I correlate processing noise-like satellite navigation signals synchronous with the common time scale, solve the navigation problem and control using a processor, while the first input of the analog VLSI is connected to the second output of the bandpass filter designed to filter GLONASS and GPS signals, the first input of the bandpass filter is connected to the second output of the combined GLONASS / GPS antenna connector, the second output of the mentioned analog VLSI is connected to the first input of the digital VLSI and is intended for of GLONASS intermediate frequency signals, the third input of the analog VLSI is connected to the second output of the GLONASS digital signal and is designed to transmit GLONASS signal amplification control signals, the fourth output of the analog VLSI is connected to the third input of the digital VLSI and is designed to transmit the GPS intermediate frequency signal, the fifth input of the analog VLSI is connected with the fourth output of the digital VLSI and is designed to transmit control signals amplification of GPS signals, while the sixth output of the analog VLSI is connected to the first input of the first evogo generator for generating a clock frequency, the second output of said crystal oscillator connected to the seventh input analog VLSI fifth output said digital VLSI connected to the first input of the second crystal oscillator,

designed to generate the real-time frequency, the second output of the second crystal oscillator is connected to the sixth input of the digital VLSI, the seventh input-output of the digital VLSI is connected to the first input-output of the I / O port, while the eighth output of the analog VLSI is connected to the first input of the first band-pass filter, designed to filter the signals of the GLONASS SNS, the second output of which is connected to the ninth input of an analog VLSI, the tenth output of the mentioned analog VLSI is connected to the first input of a second band-pass filter, pre designated for filtering SNA GPS signals, the second output of which is connected to an eleventh input analog VLSI.

The claimed utility model is illustrated by the following drawings: figure 1, which shows the structural diagram of the SPS; figure 2, which shows the VLSI performed on the technology "system in the housing."

Consider the structure and operation of the SORT.

As can be seen from the drawing of FIG. 1, SNP 1 contains a GLONASS / GPS antenna connection connector 2, to which a band-pass filter 3 is connected. VLSI of the “system-in-case” type 11, which receives messages from two GLONASS and GPS SNAs, is connected to filter 3 ( not shown), to which I / O port 6 is connected.

VLSI of the “system in package” type 11 contains analog VLSI 4, which is designed to amplify, filter GPS and GLONASS signals and analog-to-digital conversion (not shown in the drawing) and digital VLSI 5, which is designed for correlation processing of noise-like navigation signals synchronous with a single time scale and solving a navigation problem and control using a processor (not shown in the drawing).

Two bandpass filters are connected to the analog VLSI 4, the first bandpass filter 7 is designed to process signals from the SNA

GLONASS (Russia), the second bandpass filter 8, is designed to process signals from GPS GPS (USA) (not shown in the drawing).

In addition, to the analog VLSI 4 is connected the first quartz oscillator 9, designed to form a clock frequency. The second quartz oscillator 10, designed to generate the clock frequency of the real-time clock, is connected to the digital VLSI 5. The input-output of the digital VLSI 5 is connected to the input-output of the input-output port 6.

The analogue VLSI 4 includes (not shown in the drawing): low-noise amplifier (LNA), two mixers, two intermediate frequency amplifiers (UHGCH) with AGC system for GPS GPS and GPS GLONASS signals, active filters, analog-to-digital converter (ADC) , a voltage controlled oscillator (VCO) with a phase locked loop (PLL) and a reference oscillator.

Digital VLSI 5 contains (not shown in the drawing): processor, for example, ARM922T, correlator for 16 or 24 channels, non-volatile random access memory (RAM), RAM memory, clock generator, external memory controller, interrupt controller, timer, timer consumed power.

SNP 1 works as follows.

The signals from the two SNONs GLONASS (Russia) and GPS (CUIA) (not shown in the drawing) are continuously fed to the combined GLO-HACC / GPS antenna 12, then through the antenna connection connector 2 they are sent to the bandpass filter 3.

It should be noted here that the combined GLONASS / GPS receiver is made using the VLSI technology "system in the case" 11 and consists of analog VLSI 4 and digital VLSI 5. The combined VLSI 11 is designed to receive GLONASS SNS signals (frequency characters - from -7 to +12 , standard accuracy signal) and GPS SNA (C / A signal).

In the analog VLSI 4 VLSI "system in the case" 11 filtering and amplification of the input signals, as well as their digitization (not shown). Analog VLSI 4 (not shown in the drawing) is built according to the scheme of a superheterodyne receiver with double frequency conversion. The local oscillator frequencies are formed from the frequency of the reference crystal oscillator 10 by an indirect synthesis method (not shown in the drawing) using a phase locked loop (PLL). The output signals of the analog VLSI 4 (not shown in the drawing) are the binary samples of the signals of the second intermediate frequency (IF) SNA GLONASS and SNA GPS, a clock signal of 61 MHz, a PLL capture signal.

In digital VLSI 5 (not shown in the drawing), further (hardware and software) digital signal processing is performed. The digital VLSI 5 (not shown) includes a 16 or 24-channel correlator, processor, memory, random access memory (RAM) and RAM memory.

It should be noted that the 16 or 24-channel correlator included in the digital VLSI 5 (not shown in the drawing) has a working clock frequency of 30.5 MHz and contains 16 or 24 correlation channels; dual transceiver (DUART) type RS-232 with FIFO volume of 16 × 8 bits; 1PPS second time stamp driver; real-time clock (RTC), as well as generators of the INT1 interrupt signal and time scales (not shown in the drawing).

The received geodetic data from two GLONASS and GPS SNAs are supplied to the processor integrated in the digital VLSI 5 (not shown in the drawing), which analyzes the received coordinates of the geodetic points. The processor (not shown) digital VLSI 5 can perform an operation to change data by a given value of the root mean square

deviations of coordinates. The coordinates of the survey points are transmitted to the input-output port 6.

The built-in digital VLSI processor 5 (not shown in the drawing) has the ability to encrypt the coordinates of the survey points received from the GLONASS and GPS SNS (not shown in the drawing).

SIP 1 has the ability to connect various sensors and devices (not shown in the drawing), which can be connected to the input-output port 6.

I / O port 6 is designed for switching with a power source and external devices, for example, a personal computer (not shown in the drawing). Power SNP 1 can be carried out from the battery power supply, which can be a battery (not shown), or an external source connected to the external power port, which is located in the input / output port 6.

For the first time in SNP 1, VLSI was implemented using the "system-in-case" technology 11, which contains two VLSIs: an analog VLSI 4 and a digital VLSI 5 for the simultaneous reception of satellite navigation signals from two SNS GLONASS (Russia) and GPS (USA), thereby solving the problem of the utility model: lowering energy consumption through the use of VLSI systems made according to the "system-in-case" technology 11, redistribution of functions between elements of the SIC.

So, for example, the power consumption of VLSI 11, made using the "system in the case" technology, is 0.02 W with a supply voltage of 3.3 volts, current consumption is 0.0054 A. With these parameters, the maximum operating time of the SIC in a typical smartphone is a battery which is 1.2 A * hours, it will be about 222 hours (9 days), which is 30 times better than the prototype and enough to solve navigation problems.

Figure 2 shows the VLSI 11, made by the technology "system in the case", which contains two VLSI 4 and 5.

VLSI 11 and VLSI 4 and 5 are manufactured using the "system in the case" technology based on the design documentation of the FSUE NIIMA "Progress" (Russia) and other standard standard electronic components.

The prototype SNP 1 was manufactured at the Federal State Unitary Enterprise NIIMA "Progress" (Russia). Tests have shown that it complies with the requirements that apply to the requirements of measuring instruments SNP GLONASS / GPS.

Claims (1)

Two-system satellite navigation receiver (SNP), made by the "system in the case" technology, containing an input connector for connecting a combined GLONASS / GPS antenna, an input bandpass filter designed to filter GLONASS (Russia) and GPS (USA) signals, an input-output port, designed to connect external devices and input / output commands, characterized in that it contains analog and digital ultra-large integrated circuit (VLSI), while the analog VLSI is designed to amplify, filter signals from satellite navigation GLONASS navigation systems (SNA) and GPS, analog-to-digital conversion, and digital VLSI is designed for correlation processing of noise-like satellite navigation signals synchronous with a single time scale, solving a navigation problem and control using a processor, while the first input of the analog VLSI is connected to the second the output of the bandpass filter designed to filter GLONASS and GPS signals, the first input of the bandpass filter is connected to the second output of the connector for connecting the combined GLONASS / GPS antenna, The second output of the aforementioned analog VLSI is connected to the first input of the digital VLSI and is designed to transmit GLONASS intermediate frequency signals, the third input of the analog VLSI is connected to the second output of the digital VLSI and is designed to transmit control signals amplification of GLONASS signals, the fourth output of the analog VLSI is connected to the third input of the digital VLSI and is designed to transmit an intermediate frequency GPS signal, the fifth input of an analog VLSI is connected to the fourth output of a digital VLSI and is intended to transmit control signals amplification of GPS signals, while the sixth output of the analog VLSI is connected to the first input of the first crystal oscillator designed to generate a clock frequency, the second output of the said crystal oscillator is connected to the seventh input of the analog VLSI, the fifth output of the mentioned digital VLSI is connected to the first input of the second crystal designed to form a real-time frequency, the second output of the second crystal oscillator is connected to the sixth input of the digital VLSI, the seventh input-output of the digital VLSI is inen with the first input-output of the input-output port, while the eighth output of the analog VLSI is connected to the first input of the first band-pass filter for filtering the SNS GLONASS signals, the second output of which is connected to the ninth input of the analog VLSI, the tenth output of the mentioned analog VLSI is connected to the first the input of the second band-pass filter designed to filter the GPS SNS signals, the second output of which is connected to the eleventh analog VLSI input.