A Beidou security handheld terminal system

Abstract

The present invention proposes a Beidou security handheld terminal system, which relates to the field of communication technology and comprises: an antenna module, which is used for receiving and sending signals; a Beidou dual-mode module, which is used for decrypting, identifying and locating the signals received by the antenna module, and encrypting its own position information data and transmitting it to the antenna module for sending; a comprehensive information processing module, which is used for obtaining current position information by decrypting, identifying and locating information, and then using map navigation to perform mobile communication data transmission to obtain real-time position information; the Beidou security handheld terminal system proposed by the present invention can realize the secure transmission of mobile communication data and obtain real-time position information, and there is no need to wait for information reception in a background system, and data information can be displayed in real time in the security handheld terminal system, thereby improving the communication quality with the Beidou communication platform, and can also be interconnected with other devices to meet the diversified and specialized application requirements of communication, investigation, measurement and the like.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a Beidou security handheld terminal system. Background Art

[0002] At present, my country has taken the development of Beidou system user terminals as an important part of promotion and application. Many domestic manufacturers are actively developing lightweight and practical user terminal equipment based on the Beidou system. And the lightweight and practical user terminal equipment of the Beidou system is inevitably inseparable from the Beidou system. With the opening of the Beidou system and the widespread application of handheld devices, the effective combination of handheld devices and Beidou communication has become a new proposition.

[0003] However, when traditional handheld devices send information through Beidou, the background system often fails to receive the information completely, safely and effectively, which in turn affects the communication quality between the handheld device and the Beidou communication platform.

[0004] Based on this, a Beidou security handheld terminal system is proposed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a Beidou security handheld terminal system, which can solve the above problems.

[0006] The technical solution of the present invention is:

[0007] The present application provides a Beidou security handheld terminal system, which includes:

[0008] Antenna module, used for receiving and sending signals;

[0009] Beidou dual-mode module, used to decrypt and identify the signals received by the above antenna module, and encrypt its own location information data and transmit it to the above antenna module for sending;

[0010] The comprehensive information processing module is used to obtain the current location information by decrypting and identifying the positioning information, and then use the map navigation to transmit mobile communication data to obtain real-time location information.

[0011] Furthermore, the antenna module includes a Beidou antenna and a 4G LTE antenna, and the Beidou antenna includes an RNSS B3 antenna, an RDSS S antenna and an RDSS L antenna.

[0012] Furthermore, the BeiDou dual-mode module includes a channel unit and a baseband signal and information processing unit. The channel unit includes an RDSS receiving channel, an RDSS transmitting channel, an RNSS receiving channel and a splitter / combiner unit. The RDSS receiving channel is connected to the RDSS S antenna, the RDSS transmitting channel is connected to the RDSS L antenna, and the RNSS receiving channel is connected to the RNSS The above-mentioned baseband signal and information processing unit comprises a high-bit AD, a baseband signal and information processing chip, a PRM chip, an RTC chip and an encryption and decryption chip. The above-mentioned high-bit AD is used to convert electrical signals into digital signals. The above-mentioned baseband signal and information processing chip are respectively connected with the high-bit AD, the baseband signal and information processing chip, the PRM chip, the RTC chip and the encryption and decryption chip to complete anti-interference, navigation signal processing and positioning solution. The above-mentioned PRM chip is used to generate B3 precise ranging code to complete the navigation telegram conversion function. The above-mentioned RTC chip is used to provide a real-time clock. The above-mentioned encryption and decryption chip is used to realize the encryption and decryption of telegrams.

[0013] Furthermore, the above-mentioned RDSS receiving channel is connected to the RDSS low-noise amplifier and the RDSS down-conversion channel to realize RDSS satellite navigation signal amplification and down-conversion processing; the above-mentioned RDSS transmitting channel is connected to the RDSS power amplifier and the RDSS up-conversion channel to realize up-conversion and power amplification of the inbound signal; the above-mentioned RNSS receiving channel is connected to the B3 low-noise amplifier and the main B3 down-conversion channel to realize RNSS B3 frequency satellite navigation signal amplification and down-conversion processing.

[0014] Furthermore, the above-mentioned splitting and combining unit includes a splitting and combining switch and three RF switches of the same model, the above-mentioned splitting and combining switches are connected to the three above-mentioned RF switches, and the three above-mentioned RF switches are respectively connected to the above-mentioned RDSS down-conversion channel, the above-mentioned RDSS up-conversion channel and the above-mentioned main B3 down-conversion channel.

[0015] Furthermore, the above-mentioned high-bit AD is a high-speed A / D converter with 14-bit data bit output, and its model is AD9251; the above-mentioned baseband signal and information processing chip includes an anti-interference processing circuit, a GNSS baseband processing circuit and a RDSS baseband processing circuit.

[0016] Furthermore, the above-mentioned comprehensive information processing module includes a display and control unit, a data transmission and sensor unit and a security module. The above-mentioned display and control unit is used to display real-time location data. The above-mentioned display and control unit includes a multi-core ARM processor, built-in memory and peripheral interface. The above-mentioned peripheral interface can be connected to a camera, keyboard, MICRO SD, USB OTG 2.0, RS232, display screen and touch screen; the above-mentioned data transmission and sensor unit is integrated with a TD-LTE mobile communication module, and the above-mentioned TD-LTE mobile communication module is connected to the above-mentioned 4GLTE antenna to provide 4G mobile data communication function for the system; the above-mentioned security module is used to provide security protection function.

[0017] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0018] (1) The secure handheld terminal system of the present invention receives and sends signals by setting an antenna module; then the signal received by the antenna module is decrypted and identified by the Beidou dual-mode module, and the position information data is encrypted and transmitted to the antenna module for transmission; at the same time, the comprehensive information processing module obtains the current position information by decrypting the information identified and located, and then uses the map navigation to transmit mobile communication data to obtain the position information, thereby realizing the secure transmission of mobile communication data to obtain real-time position information. There is no need to wait for information reception in the background system, and the data information can be displayed in real time in the secure handheld terminal system, thereby improving the communication quality with the Beidou communication platform. It can also be interconnected with other devices to meet the diverse and specialized application needs of communication, reconnaissance, and measurement.

[0019] (2) The present invention can inherit portable devices and realize Beidou RNSS and RDSS positioning communication, position reporting, map navigation mobile communication data transmission, image capture, gravity sensing, light sensing, electronic compass and other functions;

[0020] (3) The present invention is provided with a security module, which can provide unified cryptographic service support for the Beidou security handheld terminal, mainly including core cryptographic services such as encryption and decryption, key management, identity authentication, secure storage and hardware random numbers, so as to prevent information leakage and meet high information security requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1The present invention is a schematic structural block diagram of a Beidou security handheld terminal system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] It should be noted that, in this document, the term "comprise" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] Example

[0030] See also Figure 1 , Figure 1 The figure shows a schematic structural block diagram of a Beidou security handheld terminal system provided in an embodiment of the present application.

[0031] The present application provides a Beidou security handheld terminal system, which includes:

[0032] Antenna module, used for receiving and sending signals;

[0033] Beidou dual-mode module, used to decrypt and identify the signals received by the antenna module, and encrypt its own location information data and transmit it to the antenna module for sending;

[0034] The comprehensive information processing module is used to obtain the current location information by decrypting and identifying the positioning information, and then use the map navigation to transmit mobile communication data to obtain real-time location information.

[0035] As a preferred implementation, the antenna module includes a Beidou antenna and a 4G LTE antenna, and the Beidou antenna includes an RNSS B3 antenna, an RDSS S antenna, and an RDSS L antenna.

[0036] As a preferred implementation, the Beidou dual-mode module includes a channel unit and a baseband signal and information processing unit, the channel unit includes an RDSS receiving channel, an RDSS transmitting channel, an RNSS receiving channel and a splitting and combining unit, the RDSS receiving channel is connected to the RDSS S antenna, the RDSS transmitting channel is connected to the RDSS L antenna, the RNSS receiving channel is connected to the RNSS B3 antenna, and the splitting and combining unit is respectively connected to the RDSS receiving channel, the RDSS transmitting channel and the RNSS receiving channel to realize the switching of signal splitting and combining and signal internal and external antenna paths; the baseband signal and information processing unit includes a high-bit AD, a baseband signal and information processing chip, a PRM chip, an RTC chip and an encryption and decryption chip, the high-bit AD is used to convert electrical signals into digital signals, the baseband signal and information processing chip are respectively connected to the high-bit AD, the baseband signal and information processing chip, the PRM chip, the RTC chip and the encryption and decryption chip to complete anti-interference, navigation signal processing and positioning solution, the PRM chip is used to generate a B3 precision ranging code to complete the navigation message conversion function, the RTC chip is used to provide a real-time clock, and the encryption and decryption chip is used to realize the encryption and decryption of the message.

[0037] Among them, the processing of baseband signals and information processing chips includes anti-narrowband interference processing of RNSS and RDSS system signals, baseband signal processing and information processing. Specifically, RNSS baseband signal processing can realize the rapid capture, tracking, demodulation and decoding functions of Beidou B3 satellite signals, extract and output original observation information such as pseudorange, carrier phase, carrier Doppler, navigation message, and complete timing processing according to the results of positioning solution; RNSS information processing can complete satellite position calculation, code pseudorange positioning, speed measurement and timing, and output positioning and speed measurement result data in NMEA0183 or binary data format; RDSS baseband signal processing can realize Beidou RDSS PN code capture, signal loss and recapture, carrier loop and code loop traction and tracking, message data bit synchronization, demodulation and Viterbi decoding, time difference extraction, ID identification and generation of transmitting baseband signals; the processing of baseband signal and information processing chip is planned to be implemented by signal and information processing chip GM4674, which integrates anti-interference processing, RNSS and RDSS baseband signal processing and information processing.

[0038] As a preferred implementation, the RDSS receiving channel is connected to the RDSS low noise amplifier and the RDSS down conversion channel to realize RDSS satellite navigation signal amplification and down conversion processing; the RDSS transmitting channel is connected to the RDSS power amplifier and the RDSS up conversion channel to realize up conversion and power amplification of the inbound signal; the RNSS receiving channel is connected to the B3 low noise amplifier and the main B3 down conversion channel to realize RNSS B3 frequency satellite navigation signal amplification and down conversion processing.

[0039] As a preferred implementation, the splitter-combiner unit includes a splitter-combiner switch and three RF switches of the same model. The splitter-combiner switches are connected to the three RF switches, and the three RF switches are respectively connected to the RDSS down-conversion channel, the RDSS up-conversion channel and the main B3 down-conversion channel.

[0040] Among them, the model used for the split-and-combine switch is BMD003, and the model used for the three RF switches of the same model is MASWSS0115.

[0041] As a preferred implementation, the high-bit AD is a high-speed A / D converter with 14-bit data bit output, and its model is AD9251; the baseband signal and information processing chip includes an anti-interference processing circuit, a GNSS baseband processing circuit and a RDSS baseband processing circuit.

[0042] Among them, the baseband signal and information processing chip includes an anti-interference processing circuit, a GNSS baseband processing circuit, and an RDSS baseband processing circuit, which can simultaneously receive and process five digital intermediate frequency signals of BD2-B3, BD2-B1, RDSS-S, GPS-L1, and GLONASS-L1, and output one RDSS-L baseband transmission signal. Specifically, BD2-B3, BD2-B1, and RDSS-S support 12-bit digital intermediate frequency input and have narrowband anti-interference capabilities, while GPS-L1 and GLONASS-L1 support 4-bit digital intermediate frequency input and do not have narrowband anti-interference capabilities.

[0043] It should be noted that the anti-interference processing circuit can detect and eliminate narrowband, burst, deceptive and other types of interference in the band. For narrowband and burst interference, the peak interference-to-signal ratio is better than 60dB; for deceptive interference, the interference signal is 3 to 10dB stronger than the satellite signal power, and the minimum delay relative to the satellite signal is 1.5 base code widths; the GNSS baseband processing circuit has the P code direct capture function and 64 tracking channels, including 32 RNSS-Q tracking channels and 32 GNSS-I tracking channels; it has 2 PRM module interfaces, which can simultaneously support 32 precision ranging code inputs and 1 IC card access; the RDSS baseband processing circuit has 10 tracking channels, supporting IC card access and confidentiality card access.

[0044] As a preferred implementation, the comprehensive information processing module includes a display and control unit, a data transmission and sensor unit and a security module. The display and control unit is used to display real-time location data. The display and control unit includes a multi-core ARM processor, built-in memory and a peripheral interface. The peripheral interface can be connected to a camera, keyboard, MICRO SD, USB OTG 2.0, RS232, display screen and touch screen; the data transmission and sensor unit is integrated with a TD-LTE mobile communication module, and the TD-LTE mobile communication module is connected to a 4G LTE antenna to provide the system with 4G mobile data communication function; the security module is used to provide security protection function.

[0045] Among them, the data transmission and sensor unit also integrates various sensors, including: ambient light sensor, proximity sensor, magnetometer, gyroscope, gravimeter, which are used to sense physical information such as ambient brightness, distance, device posture, and movement direction.

[0046] It should be noted that the security module can provide unified cryptographic service support for Beidou security handheld terminals, mainly including core cryptographic services such as encryption and decryption, key management, identity authentication, secure storage and hardware random numbers, thereby preventing information leakage and meeting high information security requirements.

[0047] It is understood that the structure shown in the figure is only for illustration, and the Beidou security handheld terminal system of the present invention may also include more or fewer components than those shown in the figure, or have a different configuration than that shown in the figure. Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0048] In the embodiments provided in the present application, it should be understood that the disclosed system can also be implemented in other ways. The embodiments described above are merely schematic, for example, the block diagram in the accompanying drawings shows the system architecture, functions and operations that may be implemented according to the system of the embodiments of the present application. In this regard, each box in the block diagram can represent a part of a module, a program segment or a code, and a part of the module, a program segment or a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram, and the combination of boxes in the block diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0049] In addition, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0050] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0051] To sum up, the embodiment of the present application provides a Beidou security handheld terminal system, which receives and sends signals by setting an antenna module; then decrypts, identifies and locates the signal received by the antenna module through the Beidou dual-mode module, and encrypts its own location information data and transmits it to the antenna module for transmission; at the same time, the comprehensive information processing module obtains the current location information by decrypting, identifying and locating the information, and then uses map navigation to transmit mobile communication data to obtain real-time location information, thereby realizing the secure transmission of mobile communication data. In order to obtain real-time location information, there is no need to wait for information reception in the background system, and the data information can be displayed in real time in the security handheld terminal system, thereby improving the communication quality with the Beidou communication platform, and can also be interconnected with other devices to meet the diversified and specialized application needs of communication, reconnaissance, and measurement.

[0052] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0053] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A Beidou security handheld terminal system, characterized in that: include: Antenna module, used for receiving and sending signals; The antenna module includes a Beidou antenna and a 4G LTE antenna, and the Beidou antenna includes an RNSS B3 antenna, an RDSS S antenna, and an RDSS L antenna; Beidou dual-mode module, used to decrypt and identify the signal received by the antenna module, and encrypt its own location information data and transmit it to the antenna module for sending; The Beidou dual-mode module includes a channel unit and a baseband signal and information processing unit. The channel unit includes an RDSS receiving channel, an RDSS transmitting channel, an RNSS receiving channel and a splitter / combiner unit. The RDSS receiving channel is connected to the RDSS S antenna, the RDSS transmitting channel is connected to the RDSS L antenna, and the RNSS receiving channel is connected to the RNSS The baseband signal and information processing unit comprises a high-bit AD, a baseband signal and information processing chip, a PRM chip, an RTC chip and an encryption and decryption chip. The high-bit AD is used to convert the electrical signal into a digital signal. The baseband signal and information processing chip are respectively connected to the high-bit AD, the baseband signal and information processing chip, the PRM chip, the RTC chip and the encryption and decryption chip to complete anti-interference, navigation signal processing and positioning solution. The PRM chip is used to generate a B3 precision ranging code to complete the navigation message conversion function. The RTC chip is used to provide a real-time clock. The encryption and decryption chip is used to realize the encryption and decryption of the message. The high-bit AD is a high-speed A / D converter with 14-bit data bit output; The baseband signal and information processing chip includes an anti-interference processing circuit, a GNSS baseband processing circuit and an RDSS baseband processing circuit; The anti-interference processing circuit is used to detect and eliminate in-band narrowband, burst and deceptive interference; The GNSS baseband processing circuit includes a P code direct capture function, 32 RNSS-Q tracking channels, and 32 GNSS-I tracking channels; The baseband signal and information processing chip is used for anti-narrowband interference processing, baseband signal processing and information processing of RNSS and RDSS system signals. The RNSS baseband signal processing is used for Beidou B3 satellite signal rapid capture, tracking and demodulation and decoding functions, extracting and outputting pseudorange, carrier phase, carrier Doppler and navigation message, and completing timing processing according to the result of positioning solution; the RNSS information processing is used for satellite position calculation, code pseudorange positioning, speed measurement and timing, and outputs positioning and speed measurement result data in NMEA0183 or binary data format; the RDSS baseband signal processing is used for Beidou RDSS PN code capture, signal loss and recapture, carrier loop and code loop traction and tracking, message data bit synchronization, demodulation and Viterbi decoding, time difference extraction, ID identification and generation of transmission baseband signal; The comprehensive information processing module is used to obtain the current location information by decrypting and identifying the positioning information, and then use the map navigation to transmit mobile communication data to obtain real-time location information.

2. A Beidou security handheld terminal system as claimed in claim 1, characterized in that: The RDSS receiving channel is connected to the RDSS low noise amplifier and the RDSS down-conversion channel to realize RDSS satellite navigation signal amplification and down-conversion processing; the RDSS transmitting channel is connected to the RDSS power amplifier and the RDSS up-conversion channel to realize up-conversion and power amplification of the inbound signal; The RNSS receiving channel is connected to the B3 low noise amplifier and the main B3 down-conversion channel, and is used to implement RNSS B3 frequency satellite navigation signal amplification and down-conversion processing.

3. A Beidou security handheld terminal system as claimed in claim 2, characterized in that: The split-and-combine unit includes a split-and-combine switch and three RF switches of the same model. The split-and-combine switches are connected to the three RF switches, and the three RF switches are respectively connected to the RDSS down-conversion channel, the RDSS up-conversion channel and the main B3 down-conversion channel.

4. A Beidou security handheld terminal system as claimed in claim 1, characterized in that: The comprehensive information processing module includes a display and control unit, a data transmission and sensor unit and a security module. The display and control unit is used to display real-time location data. The display and control unit includes a multi-core ARM processor, built-in memory and a peripheral interface. The peripheral interface can be connected to a camera, keyboard, MICRO SD, USB OTG 2.0, RS232, display screen and touch screen; the data transmission and sensor unit is integrated with a TD-LTE mobile communication module, and the TD-LTE mobile communication module is connected to the 4G LTE antenna to provide 4G mobile data communication function for the system; the security module is used to provide security protection function.

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