Satellite signal receiving and forwarding device

Abstract

The utility model discloses a satellite signal receiving and forwarding device, which comprises a timing plate processing module, a receiver module, a forwarding module, a receiving antenna and a transmitting antenna, the receiving antenna and the transmitting antenna are both electrically connected with the forwarding module, the forwarding module is electrically connected with the receiver module, the receiver module is electrically connected with the timing plate processing module, and the timing plate processing module is in wireless communication with the forwarding module; the receiver module is used for processing and analyzing BDS satellite signals and GPS satellite signals received by the receiving antenna to obtain corresponding standard PPS signals, TOD information and positioning information, and the timing plate processing module is used for obtaining local PPS signals and BDC code signals synchronized with the standard PPS signals according to the received standard PPS signals, TOD information and positioning information and sending the local PPS signals and the BDC code signals to the receiving antenna. And the signal is forwarded to an indoor circuit through a transmitting antenna of the forwarding module. By adopting the above arrangement, the problem that signals cannot be received indoors due to attenuation of satellite signals can be overcome, and the effect of improving signal forwarding performance is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of satellite signal reception or forwarding, and in particular relates to a satellite signal reception and forwarding device. Background Art

[0002] Beidou navigation positioning, orientation, timing and other constructions have increasingly higher requirements for the application functions of clock synchronization equipment. Existing technologies usually use satellite navigation systems to directly forward or transmit signals indoors, but this traditional signal transmission method usually causes the signal to be unable to be received indoors due to attenuation, thereby reducing the signal forwarding performance. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a satellite signal receiving and forwarding device, which can overcome the problem that the satellite signal cannot be received indoors due to attenuation, thereby reducing the signal forwarding performance.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A satellite signal receiving and forwarding device comprises a time synchronization board processing module, a receiver module, a forwarding module, a receiving antenna and a transmitting antenna; the receiving antenna and the transmitting antenna are both electrically connected to the forwarding module, the forwarding module is electrically connected to the receiver module, the receiver module is electrically connected to the time synchronization board processing module, and the time synchronization board processing module is in wireless communication with the forwarding module;

[0006] The receiving antenna is used to receive BDS satellite signals and GPS satellite signals, and transmit them to the receiver module through the forwarding module. The receiver module is used to process and analyze the received BDS satellite signals and GPS satellite signals to obtain the corresponding standard PPS signals, TOD information and positioning information, and then transmit them to the timing board processing module. The timing board processing module is used to obtain the local PPS signal and BDC code signal synchronized with the standard PPS signal according to the received standard PPS signal, TOD information and positioning information, and wirelessly transmit them to the forwarding module. The forwarding module is used to forward the received local PPS signal and BDC code signal to the indoor circuit through the transmitting antenna.

[0007] Furthermore, it also includes an AC-DC power supply module, which supplies power to the receiver module.

[0008] Furthermore, the receiver module has a control chip, and an analysis module, a processing module and an OC output module electrically connected to the control chip; the analysis module parses the acquired BDS satellite signals and GPS satellite signals into B1, B3, and GPS data, and the processing module captures, tracks, measures pseudoranges, measures carrier phases, acquires original ephemeris, and performs position calculation processing on the acquired BDS satellite signals and GPS satellite signals, and after processing, obtains standard PPS signals, TOD information, and positioning information corresponding to the position, speed, and time information.

[0009] Furthermore, the timing board processing module has a processing chip and a B code module electrically connected to the processing chip, and the B code module is used to calibrate the local frequency source according to the received standard PPS signal, TOD information and positioning information to obtain a local PPS signal and BDC code signal synchronized with the standard PPS signal.

[0010] Furthermore, the timing board processing module also has a signal amplification module and a signal combining module electrically connected to the processing chip, the signal amplification module is used to amplify the received standard PPS signal, TOD information and positioning information, and the signal combining module is used to perform signal combining processing on the amplified standard PPS signal, TOD information and positioning information, and then transmit them to the B code module.

[0011] Furthermore, the receiver module and the timing board processing module transmit information through the RTCM standard protocol unified by the GPS navigation device. The RTCM standard protocol is the NMEA0183 protocol, a standard format established for marine electronic equipment, and the serial port baud rate is: 115200-N-8-1 for information transmission.

[0012] Furthermore, the forwarding module has a filtering unit, which is electrically connected to the transmitting antenna, and is used for filtering the received local PPS signal and BDC code signal synchronized with the standard PPS signal.

[0013] Furthermore, the forwarding module also has a signal amplifying unit, which is electrically connected between the filtering unit and the transmitting antenna, and is used to amplify the filtered local PPS signal and the BDC code signal synchronized with the standard PPS signal.

[0014] Furthermore, it also includes a display screen electrically connected to the timing board processing module, and the timing board processing module is used to transmit the local PPS signal and BDC code signal synchronized with the standard PPS signal to the display screen, so that the display screen displays the synchronization time corresponding to the local PPS signal and BDC code signal, the positioning longitude and latitude status information, and adjusts the forwarding power value.

[0015] Furthermore, the display panel of the display screen has an indicator light, and the indicator light is used to indicate whether there is an abnormality in the timing board processing module.

[0016] The utility model has the following beneficial effects:

[0017] The utility model sets a time control board processing module, a receiver module, a forwarding module, a receiving antenna and a transmitting antenna to receive BDS satellite signals and GPS satellite signals by using the receiving antenna, and transmit them to the receiver module through the forwarding module. The receiver module is used to process and parse the received BDS satellite signals and GPS satellite signals to obtain corresponding standard PPS signals, TOD information and positioning information, and then transmit them to the time control board processing module. The time control board processing module is used to obtain local PPS signals and BDC code signals synchronized with standard PPS signals according to the received standard PPS signals, TOD information and positioning information, and wirelessly transmit them to the forwarding module. The forwarding module is used to forward the received local PPS signals and BDC code signals to indoor circuits through the transmitting antenna. The forwarding module serves as a transfer module, which can transmit the BDS satellite signal and the GPS satellite signal received by the receiving antenna to the receiver module. At the same time, the local PPS signal and the BDC code signal synchronized with the standard PPS signal can be processed and forwarded to the corresponding indoor circuit through the transmitting antenna, which can reduce the inability to receive the signal indoors due to satellite signal attenuation, and has the effect of improving signal forwarding. Therefore, the utility model has the advantages of enhanced functionality, improved reliability and reduced production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the relevant chips in the timing control board processing module and the receiver module of the utility model.

[0020] Figure 3 This is a schematic diagram of the network communication implemented in the processing module and forwarding module of the time control board of the present invention.

[0021] Figure 4 This is a schematic diagram of the forwarding module of the utility model for processing local PPS signals and BDC code signals. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" used in this specification are only used to facilitate the description and are not used to limit the scope of the present invention. The changes or adjustments in their relative relationships shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0023] A satellite signal receiving and forwarding device, such as Figures 1 to 4 As shown, it includes a timing board processing module, a receiver module, a forwarding module, a receiving antenna, a transmitting antenna and an AC-DC power supply module; the receiving antenna and the transmitting antenna are both electrically connected to the forwarding module, the forwarding module is electrically connected to the receiver module, the receiver module is electrically connected to the timing board processing module, and the timing board processing module communicates wirelessly with the forwarding module; the AC-DC power supply module supplies power to the receiver module.

[0024] Among them, the receiving antenna is used to receive BDS satellite signals and GPS satellite signals, and transmit them to the receiver module through the forwarding module. The receiver module is used to process and analyze the received BDS satellite signals and GPS satellite signals to obtain the corresponding standard PPS signals, TOD information and positioning information, and then transmit them to the timing board processing module. The timing board processing module is used to obtain the local PPS signal and BDC code signal (the BDC code signal is a binary digital encoding form used to represent the 10 digits from 0 to 9 in decimal numbers for high-precision calculations) synchronized with the standard PP1S signal (the standard PP1S signal is the standard signal of the timing board processing module) according to the received standard PPS signal, TOD information and positioning information, and wirelessly transmit them to the forwarding module. The forwarding module is used to forward the received local PPS signal and BDC code signal to the indoor circuit through the transmitting antenna.

[0025] In this embodiment, in order to utilize the receiver module to parse and process the acquired BDS satellite signals and GPS satellite signals to obtain standard PPS signals, TOD information and positioning information, and to allow multiple output signals to share one signal line. The receiver module has a control chip (the control chip adopts an STM32 chip), and an analysis module, a processing module and an OC output module electrically connected to the control chip; the analysis module is a signal screening unit, which is used to filter out the required signals after processing from a variety of signals, and the analysis module parses the acquired BDS satellite signals and GPS satellite signals into B1, B3, and GPS data, and the processing module captures, tracks, measures pseudorange, measures carrier phase, obtains original ephemeris, and performs position solution processing on the acquired BDS satellite signals and GPS satellite signals, and obtains the standard PPS signal, TOD information and positioning information corresponding to the position, speed and time information after processing, and then transmits the signal through the OC output module.

[0026] In this embodiment, in order to achieve synchronization between the signal transmitted by the timing control board processing module and the standard PPS signal. The timing control board processing module has a processing chip (the processing chip adopts an STM32 chip) and a B code module electrically connected to the processing chip, wherein the B code module adopts the B code timing technology, that is, a digital code received in the timing device, which is recognized and converted into a reference time in the receiver and then sent out in the form of B code. The accuracy of this method is very high. The B code module of this embodiment is used to calibrate the local frequency source according to the received standard PPS signal, TOD information and positioning information to obtain a local PPS signal and a BDC code signal synchronized with the standard PPS signal.

[0027] In this embodiment, in order to amplify and combine the multi-channel signals received by the timing control board processing module, the timing control board processing module also has a signal amplification module and a signal combination module electrically connected to the processing chip, the signal amplification module is used to amplify the received standard PPS signal, TOD information and positioning information, and the signal combination module is used to combine the amplified standard PPS signal, TOD information and positioning information, and then transmit them to the B code module.

[0028] In this embodiment, in order to unify the signal format transmitted from the receiver module to the timing board processing module, the receiver module and the timing board processing module transmit information through the RTCM standard protocol unified by the GPS navigation device. The RTCM standard protocol is the NMEA0183 protocol, a standard format established for marine electronic equipment, and the serial port baud rate is: 115200-N-8-1 for information transmission.

[0029] In this embodiment, Figure 4 As shown, in order to filter and amplify the local PPS signal and BDC code signal synchronized with the standard PP1S signal transmitted by the timing control board processing module, so as to improve the effectiveness of the transmission signal. The forwarding module has a filtering unit and a signal amplifying unit, the signal amplifying unit is electrically connected between the filtering unit and the transmitting antenna, the filtering unit is used to filter the received local PPS signal and BDC code signal synchronized with the standard PP1S signal; the signal amplifying unit is used to amplify the local PPS signal and BDC code signal synchronized with the standard PP1S signal after filtering.

[0030] In this embodiment, in order to display the local PPS signal and the BDC code signal which are synchronized with the standard PPS signal and transmitted by the timing control board processing module, it is possible to display whether there is any abnormality in the timing control board processing module.

[0031] Furthermore, the satellite signal receiving and forwarding device of the utility model also includes a display screen electrically connected to the time synchronization board processing module, and the time synchronization board processing module is used to transmit the local PPS signal and the BDC code signal synchronized with the standard PPS signal to the display screen, so that the display screen displays the synchronization time corresponding to the local PPS signal and the BDC code signal, the positioning longitude and latitude status information, and the adjustment forwarding power value. Among them, the display panel of the display screen has an indicator light, which is used to indicate whether there is an abnormality in the time synchronization board processing module.

[0032] To summarize, the utility model sets a timing board processing module, a receiver module, a forwarding module, a receiving antenna and a transmitting antenna to use the receiving antenna to receive BDS satellite signals and GPS satellite signals, and transmit them to the receiver module through the forwarding module. The receiver module is used to process and parse the received BDS satellite signals and GPS satellite signals to obtain the corresponding standard PPS signals, TOD information and positioning information, and then transmit them to the timing board processing module. The timing board processing module is used to obtain the local PPS signal and BDC code signal synchronized with the standard PPS signal according to the received standard PPS signal, TOD information and positioning information, and wirelessly transmit them to the forwarding module. The forwarding module is used to forward the received local PPS signal and BDC code signal to the indoor circuit through the transmitting antenna. The forwarding module serves as a transfer module, which can transmit the BDS satellite signal and the GPS satellite signal received by the receiving antenna to the receiver module. At the same time, the local PPS signal and the BDC code signal synchronized with the standard PPS signal can be processed and forwarded to the corresponding indoor circuit through the transmitting antenna, which can reduce the inability to receive the signal indoors due to satellite signal attenuation, and has the effect of improving signal forwarding. Therefore, the utility model has the advantages of enhanced functionality, improved reliability and reduced production cost.

[0033] The implementation methods of the utility model are not limited to this. According to the above content of the utility model, by using common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the utility model, the utility model can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the utility model.

Claims

1. A satellite signal receiving and forwarding device, characterized in that: It includes a time-controlled board processing module, a receiver module, a forwarding module, a receiving antenna and a transmitting antenna; the receiving antenna and the transmitting antenna are both electrically connected to the forwarding module, the forwarding module is electrically connected to the receiver module, the receiver module is electrically connected to the time-controlled board processing module, and the time-controlled board processing module communicates wirelessly with the forwarding module; The receiving antenna is used to receive BDS satellite signals and GPS satellite signals, and transmit them to the receiver module through the forwarding module. The receiver module is used to process and analyze the received BDS satellite signals and GPS satellite signals to obtain the corresponding standard PPS signals, TOD information and positioning information, and then transmit them to the timing board processing module. The timing board processing module is used to obtain the local PPS signal and BDC code signal synchronized with the standard PPS signal according to the received standard PPS signal, TOD information and positioning information, and wirelessly transmit them to the forwarding module. The forwarding module is used to forward the received local PPS signal and BDC code signal to the indoor circuit through the transmitting antenna.

2. The satellite signal receiving and forwarding device according to claim 1, characterized in that: It also includes an AC-DC power supply module, which supplies power to the receiver module.

3. The satellite signal receiving and forwarding device according to claim 1, characterized in that: The receiver module has a control chip, and an analysis module, a processing module and an OC output module electrically connected to the control chip; the analysis module parses the acquired BDS satellite signals and GPS satellite signals into B1, B3 and GPS data, and the processing module captures, tracks, measures pseudoranges, measures carrier phases, obtains original ephemeris, and performs position calculation processing on the acquired BDS satellite signals and GPS satellite signals, and obtains standard PPS signals, TOD information and positioning information corresponding to the position, speed and time information after processing.

4. The satellite signal receiving and forwarding device according to claim 1, characterized in that: The timing board processing module has a processing chip and a B code module electrically connected to the processing chip. The B code module is used to calibrate the local frequency source according to the received standard PPS signal, TOD information and positioning information to obtain a local PPS signal and a BDC code signal synchronized with the standard PPS signal.

5. The satellite signal receiving and forwarding device according to claim 4, characterized in that: The timing board processing module also has a signal amplification module and a signal combining module electrically connected to the processing chip. The signal amplification module is used to amplify the received standard PPS signal, TOD information and positioning information, and the signal combining module is used to perform signal combining processing on the amplified standard PPS signal, TOD information and positioning information, and then transmit them to the B code module.

6. The satellite signal receiving and forwarding device according to claim 1, characterized in that: The receiver module and the timing board processing module transmit information through the RTCM standard protocol unified by the GPS navigation equipment. The RTCM standard protocol is the NMEA0183 protocol, a standard format formulated by marine electronic equipment, and the serial port baud rate is: 115200-N-8-1 for information transmission.

7. The satellite signal receiving and forwarding device according to claim 1, characterized in that: The forwarding module has a filtering unit, which is electrically connected to the transmitting antenna and is used for filtering the received local PPS signal and BDC code signal synchronized with the standard PPS signal.

8. The satellite signal receiving and forwarding device according to claim 7, characterized in that: The forwarding module also has a signal amplifying unit, which is electrically connected between the filtering unit and the transmitting antenna, and is used to amplify the filtered local PPS signal and the BDC code signal synchronized with the standard PPS signal.

9. The satellite signal receiving and forwarding device according to claim 1, characterized in that: It also includes a display screen electrically connected to the timing board processing module, and the timing board processing module is used to transmit the local PPS signal and BDC code signal synchronized with the standard PP1S signal to the display screen, so that the display screen displays the synchronization time corresponding to the local PPS signal and BDC code signal, the positioning longitude and latitude status information, and adjusts the forwarding power value.

10. The satellite signal receiving and forwarding device according to claim 9, characterized in that: The display panel of the display screen has an indicator light, and the indicator light is used to indicate whether there is an abnormality in the timing board processing module.

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