Tiantong satellite serial voice communication terminal
By using the serial connection between the Bluetooth module and the Tiantong satellite mobile communication module in the Tiantong satellite communication terminal, the private AT command and MUX channel transmit voice data is solved, and the existing products are large in size and high in cost are realized, and small in size is achieved and cost reduction effects.
Patent Information
- Application Number
- CN202420744520.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing Tiantong satellite communication products are large in size and high in cost, resulting in a large scale and increased cost of product design.
Design a Tiantong satellite serial voice communication terminal, adopts Bluetooth module and Tiantong satellite mobile communication module, and connects signals through TTL serial port, PCM data port, SIM data port and power input port, integrating baseband chip, RF chip, and power amplifier , power management and peripheral chips use private AT commands and MUX channels to transmit voice data, avoiding SOC master decoding and control.
While realizing voice communication and data transmission, it reduces product size and cost, and is small in size, beautiful and convenient in design, and the whole machine is cheap.
Smart Images
Figure CN222321531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of voice communication terminals, in particular to a Tiantong satellite serial voice communication terminal. Background Art
[0002] Currently, the Tiantong satellite communication products on the market all connect the PCM voice data of the Tiantong module to the audio CODEC for decoding, and then connect to the speaker and MIC for Tiantong satellite voice communication, or connect the PCM voice data of the Tiantong module to the PCM interface of the ARM platform main control for voice data stream communication, and then decode it through the CODEC integrated in the ARM platform main control, and then output it to the speaker and MIC for input to carry out Tiantong voice communication. This greatly increases the space for product design, is not conducive to product miniaturization, and increases the cost of the entire product. Utility Model Content
[0003] 1. Technical Problems Solved
[0004] The technical problem to be solved by the utility model is that the existing Tiantong satellite communication products are large in size and high in cost.
[0005] 2. Technical Solution
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a Tiantong satellite serial voice communication terminal, including a Bluetooth module and a Tiantong satellite mobile communication module,
[0007] The Bluetooth module is equipped with a TTL serial port, a power supply and an LED interface, the battery and the 5V power supply are electrically connected to the Bluetooth module, and the Bluetooth module is signal-connected to a Bluetooth antenna;
[0008] The Tiantong satellite mobile communication module is equipped with a TTL serial port, a PCM data port, a SIM data port and a power input port. The Tiantong satellite mobile communication module is signal-connected to a Tiantong antenna and a Tiantong card. The Tiantong satellite mobile communication module is signal-connected to a Bluetooth module.
[0009] Furthermore, the Tiantong satellite mobile communication module is connected to the TTL serial port signal on the Bluetooth module through its TTL serial port.
[0010] Furthermore, the Tiantong satellite mobile communication module is electrically connected to the power supply and LED interface on the Bluetooth module through a power input port.
[0011] Furthermore, the Tiantong satellite mobile communication module is connected to the Tiantong card signal through the SIM data port.
[0012] Furthermore, the Tiantong satellite mobile communication module integrates a baseband chip, a radio frequency chip, a power amplifier, a power management and peripheral chips, and is also equipped with an AP controller, a UART interface, an audio interface and a USB interface.
[0013] 3. Beneficial Effects
[0014] The advantages of the utility model compared with the prior art are:
[0015] The private AT command used by the Tiantong module is: AT^VOICEMODE, 8k*16bitPCM data is transmitted through the serial port, and the PCM interface is no longer used. The AP transmits the encoded voice data (320 bytes) to the CP through the MUX9 channel in a 20ms cycle; the CP transmits the voice data (960 bytes) to the AP through the MUX9 channel in a 60ms cycle, realizing data transmission while voice communication, and does not need to be connected to the SOC main control for decoding and control. The design of our Tiantong satellite communication terminal products is small, practical, beautiful, convenient, and the cost of the whole machine is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a principle block diagram of the utility model. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.
[0018] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0019] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] The utility model will now be further described in conjunction with the accompanying drawings.
[0022] Combined with Figure 1 , including a Bluetooth module and a Tiantong satellite mobile communication module, the Bluetooth module is equipped with a TTL serial port, a power supply and an LED interface, the battery and the 5V power supply are electrically connected to the Bluetooth module, the Bluetooth module is signal-connected with a Bluetooth antenna, the Tiantong satellite mobile communication module is equipped with a TTL serial port, a PCM data port, a SIM data port and a power input port, the Tiantong satellite mobile communication module is signal-connected with a Tiantong antenna and a Tiantong card, the Tiantong satellite mobile communication module is connected to the TTL serial port signal on the Bluetooth module through its TTL serial port, the Tiantong satellite mobile communication module is electrically connected to the power supply and LED interface on the Bluetooth module through the power input port, the Tiantong satellite mobile communication module is signal-connected with the Tiantong card through the SIM data port, the Tiantong satellite mobile communication module integrates a baseband chip, a radio frequency chip, a power amplifier, a power management and peripheral chips, and the Tiantong satellite mobile communication module is also equipped with an AP controller, a UART interface, an audio interface and a USB interface.
[0023] The Tiantong antenna is mainly used to access satellite data and transmit voice data. The transmission and reception share one antenna, the interface impedance is 50Ω, and it supports half-duplex working mode.
[0024] The Tiantong satellite mobile communication module integrates baseband chips, RF chips, power amplifiers, power management and peripheral chips, etc. It is a wireless module for Tiantong satellite voice communication, providing voice and data service functions, including PCM data port, AP controller, power supply, SIM card, UART interface, audio interface, USB interface. In the reference design, a Bluetooth module is used as an AP to interconnect the module. The power supply range of the module is 3.4~4.2V. When designing, it is recommended to place 47uF, 10uF, 100nF and 51pF capacitors in sequence near the module. The USB interface is mainly used for software debugging and firmware upgrades. Using the USB interface for software debugging requires a dedicated driver. To ensure that the USB interface design complies with its corresponding USB 2.0 specification, please abide by the following principles:
[0025] The USB signal differential trace has a complete reference ground, and the PCB differential trace impedance is 90Ω.
[0026] When designing, pay attention to the effect of the junction capacitance of the interface ESD protection device on the USB high-speed data line, and select a parasitic capacitance value less than 3pF. The USB differential routing should be away from the crystal, oscillator and RF signal routing. There should be a complete reference ground plane above and below the USB differential line, and the routing on the same layer should also have ground protection. The ESD interface protection device should be placed as close to the USB interface as possible.
[0027] SIM interface: mainly through the AT command AT^SIMST to identify the satellite card of the telecommunications company to access the network and make calls, in line with the requirements of the ISO-7816 specification. The module can provide SIM card power to the outside and support 3.3V powered SIM cards.
[0028] The Bluetooth module solves voice communication and voice transmits encoded voice data (320 bytes) to the CP module through the MUX9 channel in a 20ms cycle through a private protocol AP, and transmits voice data through the serial port channel.
[0029] The Bluetooth antenna provides a reliable connection to the Bluetooth module, making voice data transmission more stable.
[0030] 5V power supply: provides stable working voltage for Tiantong satellite serial voice communication terminal products.
[0031] The battery provides a stable operating voltage to the Tiantong satellite serial voice communication terminal product when there is no external power supply, making the product easy to carry.
[0032] The power and LED interface provides users with prompts of power and product working status.
[0033] When making a call, the general mobile phone Bluetooth is connected to the Bluetooth module, and then the Bluetooth module transmits the encoded voice data (320 bytes) to the CP module through the MUX9 channel at a period of 20ms through the private protocol AP, and then transmits it to the Tiantong satellite mobile communication module through the TTL serial port, and then transmits it to the satellite by the Tiantong antenna, and then the call is made to the user's mobile phone or antenna satellite mobile phone for communication.
[0034] When answering a call, the user dials the Tiantong satellite serial voice communication terminal product device, transmits the voice through the Tiantong antenna to the Tiantong satellite mobile communication module, and transmits the voice data (960 bytes) to the AP through the MUX9 channel at a cycle of 60ms through the satellite mobile communication module CP, and transmits the voice to the Bluetooth module through the TTL serial port. The Bluetooth module transmits the voice data through the antenna to the mobile phone installed with the Tiantongxing APP for voice communication.
[0035] The utility model and its implementation are described, and such description is not restrictive. The drawings are only one of the implementations of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation example similar to the technical solution without creativity, which should belong to the protection scope of the utility model.
Claims
1. A Tiantong satellite serial voice communication terminal, comprising a Bluetooth module and a Tiantong satellite mobile communication module, characterized in that: The Bluetooth module is equipped with a TTL serial port, a power supply and an LED interface, the Bluetooth module is electrically connected to a battery and a 5V power supply, and the Bluetooth module is signal-connected to a Bluetooth antenna; The Tiantong satellite mobile communication module is equipped with a TTL serial port, a PCM data port, a SIM data port and a power input port. The Tiantong satellite mobile communication module is signal-connected to a Tiantong antenna and a Tiantong card. The Tiantong satellite mobile communication module is signal-connected to a Bluetooth module.
2. A Tiantong satellite serial voice communication terminal according to claim 1, characterized in that: The Tiantong satellite mobile communication module is connected with the TTL serial port signal on the Bluetooth module through its TTL serial port.
3. A Tiantong satellite serial voice communication terminal according to claim 1, characterized in that: The Tiantong satellite mobile communication module is electrically connected to the power supply and LED interface on the Bluetooth module through the power input port.
4. A Tiantong satellite serial voice communication terminal according to claim 3, characterized in that: The Tiantong satellite mobile communication module is connected to the Tiantong card signal through the SIM data port.
5. The Tiantong satellite serial voice communication terminal according to claim 1, characterized in that: The Tiantong satellite mobile communication module integrates a baseband chip, a radio frequency chip, a power amplifier, a power management and peripheral chips. The Tiantong satellite mobile communication module is also equipped with an AP controller, a UART interface, an audio interface and a USB interface.