Vehicle-mounted Tiantong satellite communication terminal equipment and communication method

Abstract

The invention relates to the technical field of satellite communication, in particular to a vehicle-mounted high-reliability Tiantong satellite communication terminal device which is initiative in the industry and enables vehicle-mounted data and satellites to be communicated. The main control module adopts an SOC + MCU form, the SOC is responsible for complex communication and man-machine interface processing, and the MCU is responsible for managing a power supply to realize low power consumption and interacting information with a vehicle; furthermore, rich hardware interfaces are provided, including CAN and USB, so that the use requirements of multi-scene and multi-device connection communication are met; furthermore, by using the main control module, a control link is simple, and the cost is low; and in addition, adaptation can be made according to different vehicle types, so that more different use scenes can be met, and the practicability is higher. The multi-scene emergency mode is considered, on the premise that the high reliability of the vehicle is met, a detachable structure, an internal and external double-antenna mode and double power supply interfaces are adopted, a power bank can be used for supplying power to equipment through a USB line, the device is more comprehensive, safer and more reliable, and the vehicle never loses communication.

Description

Technical Field

[0001] The present invention relates to the field of satellite communication technology, and in particular to a vehicle-mounted Tiantong satellite communication terminal device. Background Art

[0002] At present, most of the mobile satellite communication systems on the market are handheld devices or portable terminals, and there is basically no precedent for pre-installation on ordinary vehicles. In real scenarios, many users hope that ordinary passenger cars can also be pre-installed with mobile satellite communication terminals to meet convenient mobile satellite communication needs. At present, the mobile satellite communication system that has begun to take shape in China is the Tiantong-1 mobile satellite communication system, and its satellite communication terminals are mostly handheld devices. How to realize the pre-installation of Tiantong communication terminals on vehicles has few actual applications, and how to better use Tiantong communication terminals for vehicle-mounted applications is a problem that needs to be tried and solved.

[0003] In a vehicle-mounted environment, mobile satellite communication terminals face more stringent requirements: Complex environment: The electromagnetic environment inside the vehicle is complex, with a large number of electrical equipment and electronic control systems, which can easily cause electromagnetic interference to the communication terminal and affect the communication quality; Vibration and shock: Vibration and shock will occur during vehicle driving, requiring the communication terminal to have good shock resistance and mechanical stability.

[0004] Mobile satellite communication terminals, especially the terminal equipment of the Tiantong-1 mobile satellite communication system, are mostly handheld devices, and all use SOC main control chips. The design combined with MCU can solve the communication needs and reduce limitations in the vehicle environment: In real-world scenarios, more and more users want to install front-mounted mobile satellite communication terminals in vehicle environments to achieve convenient and reliable mobile satellite communication needs. In particular, in scenarios such as emergency rescue, field operations, and long-distance transportation, the demand for vehicle-mounted satellite communication terminals is particularly urgent. Summary of the invention

[0005] In view of the problems of the prior art, the present invention provides a vehicle-mounted Tiantong satellite communication terminal device, which realizes data control through a main control module, interacts with vehicle data in real time, and is perfectly integrated.

[0006] In order to solve the above technical problems, the first aspect of the present invention adopts the following technical solutions: a vehicle-mounted high-reliability Tiantong satellite communication terminal device, including a main control module, an antenna module, a GNSS positioning module, a wireless communication module, a satellite communication module, a USB communication module and a CAN communication module; The GNSS positioning module, wireless communication module, satellite communication module, CAN communication module and USB communication module are all connected to the main control module signal. The CAN communication module is used to connect to the vehicle end to realize the communication between the main control module and the vehicle end. The wireless communication module is used to communicate with the mobile intelligent terminal. The Ethernet communication module is used to transmit satellite communication data. The GNSS positioning module is used to obtain the real-time position of the vehicle. The satellite communication module is used to communicate with the Tiantong satellite. When sending data to the Tiantong satellite: the vehicle-side data is transmitted to the main control module through the CAN communication module and the Ethernet communication module, the main control module analyzes and processes the vehicle-side data and transmits it to the satellite communication module, and the satellite communication module sends the vehicle-side data to the Tiantong satellite through the antenna module; When receiving Tiantong satellite data: the satellite communication module receives data from the Tiantong satellite through the antenna module, the satellite communication module transmits the received satellite data to the main control module, the main control module analyzes and processes the received data, and transmits it to the vehicle through the Ethernet communication module and the CAN communication module.

[0007] Preferably, the antenna module includes a GNSS antenna, a BT antenna, a WIFI antenna and a Tiantong satellite antenna. The wireless communication module is connected to the mobile intelligent terminal through the BT antenna and the WIFI antenna. The GNSS positioning module receives and sends signals through the GNSS antenna. The satellite communication module receives and sends data through the Tiantong satellite antenna.

[0008] Preferably, it further comprises a power supply module, wherein the power supply module comprises a power supply interface, and is connected to an external power supply through the power supply interface to provide an operating voltage for a device requiring power supply.

[0009] Preferably, it further comprises a timing detection module, and the timing detection module is used to regularly detect whether all communication channels of the main control module can be used normally.

[0010] The second aspect of the present invention adopts a communication method of a vehicle-mounted Tiantong satellite communication terminal device, comprising the following method: When the vehicle is started, if there is no satellite communication demand, the vehicle-mounted high-reliability Tiantong satellite communication terminal device is in a standby state; When the vehicle has satellite communication requirements, then: If the vehicle actively initiates the satellite communication demand, the voice signal is received through the microphone or speaker of the vehicle, and the voice signal is transmitted to the main control module through the CAN communication module and the Ethernet communication module. The main control module analyzes and processes the received signal and transmits it to the satellite communication module, and the satellite communication module transmits the signal to the Tiantong satellite through the antenna module; If the vehicle receives the signal from the Tiantong satellite, the satellite communication module receives the communication data of the Tiantong satellite through the antenna module, and transmits the received data to the main control module. The main control module analyzes and processes the received data, and then transmits it to the vehicle through the Ethernet communication module and the CAN communication module, and plays the received data through the microphone or speaker of the vehicle.

[0011] Preferably, when there is no need for satellite communication, the timing detection module periodically sends test data to the satellite communication module through the main control module. After the satellite communication module transmits the test signal to the satellite through the antenna module, it receives a feedback signal from the satellite and transmits the feedback signal to the main control module. Whether the satellite communication function is normal is determined by whether the feedback signal is received. At the same time, the timing detection module periodically sends a detection signal to the vehicle end through the Ethernet communication module and the CAN communication module. When the vehicle end normally receives the test signal, it sends a feedback signal to the main control module. Whether the communication function between the main control module and the vehicle is normal is determined by whether the main control module can receive the feedback signal from the vehicle.

[0012] Beneficial effects of the present invention: The present invention provides a vehicle-mounted Tiantong satellite communication terminal device, in which the main control module adopts SOC+MCU, which has high real-time performance, high reliability and low cost; Furthermore, it has a wealth of hardware interfaces, including CAN and USB, to meet the needs of multi-scenario and multi-device connection and communication. Furthermore, the use of the main control module makes the control link simple and low-cost. It can also be adapted according to different vehicle models, so as to meet more different usage scenarios and be more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the application structure of the present invention; Figure 2 This is a signal block diagram of Embodiment 1 of the present invention; Figure 3 This is a flow chart of Embodiment 2 of the present invention; Figure 4 It is a structural schematic diagram of the gravity balance structure of the present invention; Figure 5 It is a structural schematic diagram of the magnetic attraction component of the present invention; Figure 6 It is a structural schematic diagram of the magnetic attraction block of the present invention; Figure 7 It is a schematic diagram of the structure of the gravity balance structure of the present invention on the roof; Figure 8 It is a schematic diagram of the posture change structure of the housing of the present invention under the cooperation of the gravity balance structure; Fig. 9 It is a structural schematic diagram of the Tiantong satellite antenna of the present invention.

[0014] The symbols in the accompanying drawings are: 1-housing, 2-balance rod, 3-connecting piece, 4-balance ball, 5-conical hole, 6-metal block, 7-magnet, 8-magnetic suction assembly. DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0016] This embodiment provides a vehicle-mounted high-reliability Tiantong satellite communication terminal device, such as Figures 1 to 3 , including a main control module, an antenna module, a GNSS positioning module, a wireless communication module, a satellite communication module, a USB module and a CAN communication module, wherein the main control module is a prior art; the GNSS positioning module, the wireless communication module, the satellite communication module, the Ethernet communication module, the CAN communication module and the USB communication module are all connected to the main control module signal, the CAN communication module is used to connect to the vehicle end to realize the communication between the main control module and the vehicle end, the wireless communication module is used to communicate with the mobile intelligent terminal, the Ethernet communication module is used to transmit satellite communication data, the GNSS positioning module is used to obtain the real-time position of the vehicle, and the satellite communication module is used to communicate with the Tiantong satellite. Among them, the wireless communication module includes Bluetooth communication and wifi communication, which can be connected to mobile intelligent terminals such as mobile phones, and then realize the satellite call function through the mobile phone.

[0017] Specifically, Figure 1 As shown, after the present embodiment is installed in a vehicle and communication with the vehicle is achieved, the satellite call function can be performed through the present embodiment. When sending data to the Tiantong satellite: the vehicle-side data is transmitted to the main control module through the CAN communication module and the Ethernet communication module, the main control module analyzes and processes the vehicle-side data and transmits it to the satellite communication module, and the satellite communication module sends the vehicle-side data to the Tiantong satellite through the antenna module; when receiving Tiantong satellite data: the satellite communication module receives data from the Tiantong satellite through the antenna module, the satellite communication module transmits the received satellite data to the main control module, the main control module analyzes and processes the received data, and transmits it to the vehicle through the Ethernet communication module and the CAN communication module.

[0018] The main control module of this embodiment adopts a single MCU+SOC control chip. Compared with a single SOC system, this embodiment has the advantage of lower power consumption: Furthermore, this embodiment has a rich hardware interface that can meet the needs of multi-scenario and multi-device connection: CAN communication module: It has a CAN interface, which means it supports the vehicle network communication standard CAN (Controller Area Network), and can seamlessly connect with various electronic control systems inside the vehicle. Through the CAN interface, the terminal device can obtain the vehicle status information (such as speed, location, fuel consumption, etc.) in real time, and optimize the communication strategy based on this information to improve communication efficiency and security. Through the CAN interface, users can easily connect to the local area network or the Internet to realize remote monitoring, data upload, firmware upgrade and other functions to meet diverse communication needs.

[0019] USB communication module: Equipped with a USB interface, it is convenient for users to connect external storage devices, debugging tools or other peripherals. The USB interface not only supports data transmission, but can also be used for power supply, which simplifies the connection and use of the device. In addition, the USB interface also supports plug-and-play function, which improves the user's operation convenience.

[0020] Multi-scenario adaptation: The rich hardware interfaces enable this embodiment to be flexibly applied to a variety of scenarios, such as emergency rescue, field operations, long-distance transportation, fleet management, etc. Whether in a fixed location or on the move, users can choose the appropriate interface for connection according to actual needs to ensure flexibility and convenience of communication.

[0021] Reduce development costs: Due to the simple control link, developers can more easily perform software programming and debugging, shortening the development cycle and reducing development costs. In addition, the simple control link also helps reduce the workload of later maintenance and reduces long-term operating costs.

[0022] Reduce power consumption: By using the low power consumption of the MCU, especially in standby mode, the battery life can be effectively extended. For automotive applications, low power design not only helps save energy, but also reduces heat generation, improves the stability and service life of the device.

[0023] Adaptable to different vehicle models: The terminal device of this embodiment adopts a modular design and can be flexibly adapted according to the specific needs of different vehicle models. Whether it is a small car, SUV, commercial vehicle, or special vehicle, users can choose the appropriate hardware configuration and software settings according to the vehicle's electrical system, installation space, and use environment to ensure the best performance of the device.

[0024] Strong compatibility: The terminal device supports multiple communication protocols and interface standards, and can seamlessly connect with the electronic systems of vehicles of different brands. By adjusting the communication parameters and configuration files, users can easily achieve compatibility between the device and the vehicle without large-scale modification of the vehicle.

[0025] Easy to install: Considering the particularity of the vehicle environment, this embodiment is compact and small in size, which is easy to install in any position of the vehicle. At the same time, the device is equipped with a sturdy shell and anti-vibration design, which can maintain stability during driving and avoid damage caused by vibration or impact.

[0026] Intelligent Adaptation: The terminal device has a built-in intelligent adaptation algorithm that can automatically identify the vehicle type and communication environment, and adjust the communication parameters according to the actual situation to ensure the best communication effect. Users do not need to manually configure complex parameters, and can achieve a convenient plug-and-play experience.

[0027] In addition, the present embodiment has two power supply modes. The power supply module includes a power supply interface, which can be connected to the power supply end of the vehicle through the power supply interface, and the vehicle provides the working voltage for the present embodiment. When the present embodiment is detached from the vehicle, the present embodiment can also be powered by a mobile power bank, etc., making the power supply of the present embodiment more convenient. The power supply module can also include a battery, and the battery can be used to power the main control module and other devices that need electricity in the present embodiment, so that it can be used in more occasions.

[0028] The housing 1 of this embodiment is as Figures 4 to 8 As shown, the housing 1 is used to install the Tiantong satellite antenna. When in use, the Tiantong satellite antenna needs to be kept balanced so that Fig. 9 The top surface of the Tiantong satellite antenna shown in FIG. 1 is kept horizontal. This embodiment is provided with a gravity balance structure, such as Figure 5 As shown, the gravity balance structure includes a magnetic attraction component 8, a balance bar 2, and a connector 3 fixed to the outer periphery of the housing 1. At the same time, a gravity block (not shown in the figure) is installed at the bottom of the housing 1, and the gravity block is located at the low point of gravity of the housing 1, such as the gravity installation structure of a tumbler. A balance ball 4 is arranged at one end of the balance bar 2, and the other end of the balance bar 2 is installed on the magnetic attraction component 8. The connector 3 is provided with a balance hole for assembling the balance ball 4 and a tapered hole 5 for accommodating the balance bar 2. The tapered hole 5 gradually expands from the balance hole downward, as shown in FIG. Figure 5 As shown, the balancing ball 4 can move in the balancing hole, and the conical hole 5 is larger than the balancing rod 2, so that the balancing rod 2 has a certain amount of space to move in the conical hole 5. When the vehicle is unbalanced, the housing 1 with the Tiantong satellite antenna will move under the action of gravity and then restore the horizontal state. When in use, the magnetic suction component 8 is installed on the top of the vehicle and is tightly attached to the roof by magnetic suction. The balancing rod 2 and the connecting piece 3 are provided in two groups, such as Figure 8 The two balancing poles 2 are located on both sides of the vehicle's forward direction. Therefore, when the vehicle is unbalanced, the housing 1 can automatically move and restore the horizontal state under the action of the gravity block to keep the top of the antenna horizontal. Fig. 9As shown, this embodiment can keep the top of the Tiantong satellite antenna as horizontal as possible during the movement of the vehicle.

[0029] Furthermore, the magnetic attraction assembly 8 includes a plurality of magnetic attraction blocks, and the plurality of magnetic attraction blocks can be connected by wires, such as Figure 6 As shown, or by connecting through other materials with the same soft properties as the wire, multiple magnetic blocks can be kept separate and will not be completely separated. The purpose of setting the magnetic suction assembly 8 as multiple magnetic suction blocks is to make each magnetic suction block more tightly attached to the roof, because the roof is not a plane, but has a certain curvature structure. Therefore, compared with a whole piece of magnet 7, this embodiment can increase the area of ​​each magnetic suction block and the roof by subdividing the magnetic suction blocks, improve the suction force between the magnetic block assembly and the roof, increase the stability of the Tiantong satellite antenna on the roof, and make the installation process simpler. Furthermore, the magnetic suction block includes a metal block 6 and a magnet 7 fixed to the metal block 6, as shown in FIG. Figure 7 The fixing method may be to embed the magnet 7 into the metal block 6, etc., which is not limited in this embodiment. The balance bar 2 is fixed to the metal block 6, and the metal is below the Tiantong satellite antenna to avoid affecting the use of the antenna. In addition, the polarities of adjacent magnets 7 can be opposite as needed to avoid the adjacent magnets 7 being adsorbed together and affecting the fit between the magnetic suction component 8 and the roof.

[0030] Furthermore, this embodiment is also provided with a timing detection module, which is used to regularly detect whether all communication channels of the main control module can be used normally. Specifically, such as WatchDog: hardware watchdog, which has a timed "dog feeding" method to prevent program abnormalities from causing the device to be in a stagnant state, thereby improving device reliability.

[0031] Specifically, the timing detection module triggers the test task regularly to ensure the normal operation of the communication function.

[0032] 1. The working principle of the detection is: When there is no actual satellite communication demand, the system will periodically trigger the self-test of the satellite communication function through the timing detection module. The specific steps are as follows: Start the scheduled detection task: The timing detection module automatically starts a satellite communication function detection task at a preset time interval (such as every hour or every day).

[0033] Send test data: The main control module generates a set of test data and sends it to the antenna module through the satellite communication module; the antenna module converts the test data into radio frequency signals and transmits them to the satellite through the satellite link.

[0034] Receive feedback signal: After the satellite receives the test signal, it sends the feedback signal back to the antenna module after processing; after the antenna module receives the feedback signal, it passes it to the satellite communication module; the satellite communication module decodes the received feedback signal and transmits it to the main control module.

[0035] Determine the communication status: The main control module checks whether the feedback signal is successfully received. If the feedback signal is received, it is considered that the satellite communication function is normal; if the feedback signal is not received, it is considered that the satellite communication function may be faulty.

[0036] If a fault is detected, the main control module can record the fault information and alert the user through other communication methods (such as Ethernet or CAN) to indicate the need for further inspection or maintenance.

[0037] Record test results: The results of each test (including test time, whether a feedback signal is received, etc.) will be recorded in the memory of the main control module for subsequent query and analysis.

[0038] 2. Furthermore, in order to ensure the normal communication function between the main control module and the vehicle, the system will also periodically trigger the self-test of the vehicle communication function through the timing detection module. The specific process is as follows: Start the scheduled detection task: The timing detection module automatically starts a vehicle communication function detection task at a preset time interval (such as every 10 minutes or every hour).

[0039] Send a heartbeat: The main control module generates a set of detection signals through the Ethernet communication module and the CAN communication module respectively, and sends them to the vehicle end; the Ethernet communication module is used to send high-speed data detection signals, which is suitable for communicating with the vehicle's network equipment (such as on-board computers, monitoring systems, etc.); the CAN communication module is used to send low-speed control signals, which is suitable for communicating with the vehicle's electronic control systems (such as engine control units, braking systems, etc.).

[0040] Receive feedback signal: After receiving the detection signal, the vehicle side will process it according to the preset protocol and generate a corresponding feedback signal; the feedback signal is returned to the main control module through the Ethernet communication module and the CAN communication module respectively.

[0041] Determine the communication status: The main control module checks whether the feedback signal is successfully received. If the feedback signal is received, the vehicle communication function is considered normal; if the feedback signal is not received, the vehicle communication function may be faulty; if a fault is detected, the main control module can record the fault information and send an alarm to the user through other communication methods (such as display screen or warning light), indicating that further inspection or maintenance is required.

[0042] Record test results: The results of each test (including test time, whether a feedback signal is received, etc.) will be recorded in the memory of the main control module for subsequent query and analysis.

[0043] 3. About the detection cycle and frequency adjustment: Fixed-cycle detection: The system can select a fixed detection cycle (such as every hour, every day, etc.) according to the user's settings, and regularly perform self-tests on satellite communication and vehicle communication functions.

[0044] Dynamically adjust the detection frequency: In order to optimize resource utilization, the system can dynamically adjust the detection frequency according to actual usage. For example, if satellite communication is not used for a long time, the detection cycle can be appropriately extended; while in the case of frequent use of satellite communication, the detection cycle can be shortened to ensure that the communication function is always in the best state.

[0045] Manually triggered detection: In addition to automatic detection, users can also manually trigger detection tasks through the operation interface to check the status of the communication function at any time.

[0046] Fault record: During each detection process, if any abnormal situation is found (such as failure to receive feedback signal, communication timeout, etc.), the main control module will automatically record the fault information, including fault type, occurrence time, possible cause, etc.

[0047] Alarm notification: When a communication function abnormality is detected, the main control module can send an alarm notification to the user in a variety of ways, such as: Display screen prompt: Display fault information on the device's display screen to remind users to check.

[0048] Sound and light alarm: emits sound or light signals through a buzzer or indicator light to attract the user's attention.

[0049] Remote notification: Fault information is sent to the user's mobile phone, computer or other remote devices through Ethernet or wireless communication modules to ensure that the user can understand the equipment status in a timely manner.

[0050] Automatic recovery attempt: For some minor communication failures, the main control module can try to automatically recover, for example, reinitialize the communication module, restart the device, etc., to ensure that the communication function returns to normal as soon as possible.

[0051] 4. Log management and data analysis Log record: The result of each test (including successful and failed tests) will be recorded in the memory of the main control module to form a detailed log file. The log file includes the test time, test type, test result, fault information, etc.

[0052] Data analysis: Through built-in data analysis algorithms, the main control module can analyze log data and identify potential communication problems or trends. For example, if the same fault occurs multiple times in a row, the system can automatically prompt the user to perform more in-depth inspection or maintenance.

[0053] Remote access: Users can remotely access the device's log files through Ethernet or wireless communication modules, view historical detection records, and analyze the operating status of communication functions, helping users better manage and maintain equipment.

[0054] Embodiment 2: This embodiment provides a communication method for a vehicle-mounted high-reliability Tiantong satellite communication terminal device, which installs the first embodiment on a corresponding vehicle and communicates with the vehicle, such as Figure 3 After the vehicle is started, if there is no satellite communication demand, the vehicle-mounted high-reliability Tiantong satellite communication terminal device of the first embodiment is in a standby state; When the vehicle has satellite communication requirements, then: If the vehicle actively initiates the satellite communication demand, the voice signal is received through the microphone or speaker of the vehicle, and the voice signal is transmitted to the main control module through the CAN communication module and the Ethernet communication module. The main control module analyzes and processes the received signal and transmits it to the satellite communication module, and the satellite communication module transmits the signal to the Tiantong satellite through the antenna module; If the vehicle receives the signal from the Tiantong satellite, the satellite communication module receives the communication data of the Tiantong satellite through the antenna module, and transmits the received data to the main control module. The main control module analyzes and processes the received data, and then transmits it to the vehicle through the Ethernet communication module and the CAN communication module, and plays the received data through the microphone or speaker of the vehicle.

[0055] Specifically, after detecting that the vehicle is started, the satellite communication terminal starts to initialize the device and waits for a satellite communication request. If no satellite communication request is received, the device enters standby mode and re-enters the judgment process. If a satellite call request is received, the next step is entered. This satellite communication terminal is a two-way communication, which is divided into two cases. The first: After the Tiantong module receives a satellite call request from other devices, it notifies the SOC, and the SOC forwards the relevant information of the Tiantong module to the USB module, and then transmits it to the multimedia on the vehicle side through a hard line. After receiving the request, the multimedia calls the microphone and speaker on the vehicle through a dedicated APP to transmit the voice signal; the second: actively initiate a satellite voice call through a dedicated APP on the on-board multimedia, call the microphone and speaker on the vehicle through a dedicated APP, and transmit the voice information through the USB interface of the multimedia on the vehicle side, and then transmit it to the satellite communication terminal through the hardware. The USB interface of the satellite communication terminal converts the data to the SOC, and the SOC sends it to the Tiantong module after processing, and then sends it to the satellite through the module to realize the satellite voice call function.

[0056] Specifically, in addition to transmitting to the vehicle side through the hard-wired Ethernet interface, the communication terminal device of this embodiment can also be connected to the mobile device side through WIFI or BT. The working process is basically the same as above, except that the SOC transmits the satellite information to the mobile side wirelessly via Bluetooth or WIFI. After receiving the request, the mobile side calls the local microphone and speaker to transmit voice data.

[0057] The communication terminal device of this embodiment has a one-touch SOS function. After the SOS is triggered, it will automatically send a text message and location information to a pre-set emergency contact and make a voice call at the same time.

[0058] The communication terminal device of this embodiment has hard-wired connection signals, ignition signals, CAN signals, etc. with the vehicle end. After the vehicle is turned off, the device can enter sleep mode. At this time, the power consumption is extremely low and basically no battery energy is consumed on the vehicle end.

[0059] The communication terminal device of this embodiment has a visual indicator light, which can indicate the current status of the device, making it easier for the user to judge.

[0060] The communication terminal equipment of this embodiment usually uses the vehicle-side power supply, and can also be powered by a power bank in an emergency to achieve satellite communication functions, with multiple guarantees that are more reliable.

[0061] Among them, when there is no satellite communication demand, the timing detection module sends test data to the satellite communication module through the main control module at regular intervals. After the satellite communication module transmits the test signal to the satellite through the antenna module, it receives the feedback signal from the satellite and transmits the feedback signal to the main control module. Whether the satellite communication function is normal is determined by whether the feedback signal is received; at the same time, the timing detection module sends the detection signal to the vehicle end at regular intervals through the Ethernet communication module and the CAN communication module. When the vehicle end receives the test signal normally, it sends the feedback signal to the main control module. Whether the communication function between the main control module and the vehicle is normal is determined by whether the main control module can receive the feedback signal from the vehicle. In this way, it is possible to detect in real time whether the satellite communication function can be used normally. If there is an abnormality, the user is notified in time so that the user can know and repair or replace it in time, so as to avoid the situation where the satellite call cannot be received in time and improve the reliability of use.

[0062] In this embodiment, SOC+MCU is used as the main control chip, combined with rich hardware interfaces, simplified control links and highly customized adaptation capabilities, to provide an efficient, reliable and economical vehicle-mounted mobile satellite communication terminal solution, which can not only meet the connection requirements of multiple scenarios and multiple devices, but also maintain stable communication performance in complex vehicle-mounted environments, greatly improving the user experience and communication efficiency.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A vehicle-mounted Tiantong satellite communication terminal device, characterized in that: Including main control module, antenna module, GNSS positioning module, wireless communication module, satellite communication module, CAN communication module, USB communication module, perfectly integrated with the vehicle, so that the vehicle will never lose connection; The GNSS positioning module, wireless communication module, satellite communication module, Ethernet communication module, CAN communication module and USB communication module are all connected to the main control module signal. The CAN communication module is used to connect to the vehicle end to realize the communication between the main control module and the vehicle end. The wireless communication module is used to communicate with the mobile intelligent terminal. The Ethernet communication module is used to transmit satellite communication data. The GNSS positioning module is used to obtain the real-time position of the vehicle. The satellite communication module is used to communicate with the Tiantong satellite. When sending data to the Tiantong satellite: the vehicle-side data is transmitted to the main control module through the CAN communication module and the Ethernet communication module, the main control module analyzes and processes the vehicle-side data and transmits it to the satellite communication module, and the satellite communication module sends the vehicle-side data to the Tiantong satellite through the antenna module; When receiving Tiantong satellite data: the satellite communication module receives data from the Tiantong satellite through the antenna module, the satellite communication module transmits the received satellite data to the main control module, the main control module analyzes and processes the received data, and transmits it to the vehicle through the Ethernet communication module and the CAN communication module.

2. According to claim 1, a vehicle-mounted Tiantong satellite communication terminal device is characterized in that: The antenna module includes a GNSS antenna, a BT antenna, a WIFI antenna, and an internal and external Tiantong satellite antenna. The wireless communication module is connected to the mobile intelligent terminal through the BT antenna and the WIFI antenna. The GNSS positioning module receives and sends signals through the GNSS antenna. The satellite communication module receives and sends data through the Tiantong satellite antenna. The Tiantong antenna is divided into an internal antenna and an external antenna. You can choose to use one of the two. The external antenna can be used in the car, and the internal antenna can be used as a handheld device after it is removed.

3. The vehicle-mounted Tiantong satellite communication terminal device according to claim 1 is characterized in that: It also includes a power supply module, which includes a power supply interface, which is connected to an external power supply through the power supply interface to provide a working voltage for devices that need power supply; there are two power supply methods, one is to use the power supply on the vehicle, and the other is to use a handheld power bank for power supply. Choosing one of the two is safer and more reliable.

4. The vehicle-mounted Tiantong satellite communication terminal device according to claim 1 is characterized in that: It also includes a timing detection module, which is used to regularly detect whether all communication channels of the main control module can be used normally.

5. The vehicle-mounted Tiantong satellite communication terminal device according to claim 1 is characterized in that: It also includes a shell for assembling the Tiantong satellite antenna. A gravity balance structure is installed on the outer periphery of the shell, and the gravity balance structure is used to maintain the balance of the shell.

6. A communication method for a vehicle-mounted Tiantong satellite communication terminal device, characterized in that: The following methods are included: When the vehicle is started, if there is no satellite communication demand, the vehicle-mounted high-reliability Tiantong satellite communication terminal device is in a standby state; When the vehicle has satellite communication requirements, then: If the vehicle actively initiates the satellite communication demand, the voice signal is received through the microphone or speaker of the vehicle, and the voice signal is transmitted to the main control module through the CAN communication module and the Ethernet communication module. The main control module analyzes and processes the received signal and transmits it to the satellite communication module, and the satellite communication module transmits the signal to the Tiantong satellite through the antenna module; If the vehicle receives the signal from the Tiantong satellite, the satellite communication module receives the communication data of the Tiantong satellite through the antenna module, and transmits the received data to the main control module. The main control module analyzes and processes the received data, and then transmits it to the vehicle through the Ethernet communication module and the CAN communication module, and plays the received data through the microphone or speaker of the vehicle.

7. The vehicle-mounted high-reliability Tiantong satellite communication terminal device according to claim 6 is characterized in that: When there is no need for satellite communication, the timing detection module periodically sends test data to the satellite communication module through the main control module. After the satellite communication module transmits the test signal to the satellite through the antenna module, it receives a feedback signal from the satellite and transmits the feedback signal to the main control module. Whether the satellite communication function is normal is determined by whether the feedback signal is received. At the same time, the timing detection module periodically sends a detection signal to the vehicle end through the Ethernet communication module and the CAN communication module. When the vehicle end normally receives the test signal, it sends a feedback signal to the main control module. Whether the communication function between the main control module and the vehicle is normal is determined by whether the main control module can receive the feedback signal from the vehicle.

Images