Bluetooth microprocessor module

Abstract

The utility model provides a Bluetooth microprocessor module, and belongs to the field of communication. The Bluetooth microprocessor module comprises a microprocessor chip, a crystal oscillator module, an antenna debugging module, a low-power-consumption power supply module and more than one interface, the crystal oscillator module, the antenna debugging module, the low-power-consumption power supply module and the more than one interface are respectively connected with the microprocessor chip, the microprocessor chip is connected with the Bluetooth antenna through the antenna debugging module, and the Bluetooth antenna is connected with the Bluetooth antenna through the antenna debugging module. The input end of the microprocessor chip is connected with the output end of the crystal oscillator module, the microprocessor chip is further provided with pin sets connected with the interface modules in a one-to-one correspondence mode, and the microprocessor chip is further provided with test points used for being externally connected with an upper computer and used for firmware upgrading and testing. The beneficial effects of the utility model are that the data acquisition processing and communication functions are provided, and the power consumption of the product is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of communications, specifically to a Bluetooth microprocessor module. Background Technology

[0002] A Bluetooth module is a PCBA board with integrated Bluetooth functionality, used for short-range wireless communication. As a short-range wireless communication technology that replaces data cables, Bluetooth supports point-to-point and point-to-multipoint communication, wirelessly connecting various data and voice devices in the home or office into a piconet. Several piconet can be further interconnected to form a distributed network, thereby enabling fast and convenient communication between these connected devices.

[0003] Existing Bluetooth modules, which are responsible for data transmission and reception, require real-time data monitoring to meet communication real-time requirements, resulting in high power consumption. Furthermore, typical Bluetooth modules only perform simple data transmission and reception functions and cannot collect and process data, limiting their application scenarios. Therefore, existing technologies are insufficient to meet the demands for low power consumption and data processing. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a Bluetooth microprocessor module that has data acquisition and processing functions and can achieve low power consumption.

[0005] This utility model relates to a Bluetooth microprocessor module, comprising a microprocessor chip, a crystal oscillator module, an antenna debugging module, a low-power power supply module, and one or more interfaces connected to the microprocessor chip, and also includes a Bluetooth antenna. The microprocessor chip is connected to the Bluetooth antenna through the antenna debugging module, and the input terminal of the microprocessor chip is connected to the output terminal of the crystal oscillator module. The microprocessor chip also has pin groups that are connected one-to-one with the interface modules, and the microprocessor chip also has test points for connecting to an external host computer for firmware upgrades and testing.

[0006] Furthermore, it also includes a signal matching module disposed between the antenna debugging module and the antenna.

[0007] Furthermore, the antenna debugging module includes capacitor C8, capacitor C10, and inductor L2. One end of capacitor C8 is connected to the first antenna pin of the microprocessor chip, one end of capacitor C10 is connected to the second antenna pin of the microprocessor chip, and the two ends of inductor L2 are connected to one end of capacitor C8 and one end of capacitor C10, respectively. The other end of capacitor C8 is connected to the signal matching module, and the other end of capacitor C10 is grounded.

[0008] Furthermore, the signal matching module includes capacitor C6, capacitor C7, and inductor L1, wherein one end of capacitor C6 and one end of capacitor C7 are respectively connected to the two ends of capacitor C8, the other ends of capacitor C6 and capacitor C7 are grounded, and inductor L1 is connected in series to the Bluetooth antenna connection terminal.

[0009] Furthermore, the signal matching module also includes a grounding capacitor C5 and a grounding capacitor C9, which are connected in parallel between the inductor L1 and the Bluetooth antenna.

[0010] Furthermore, it also includes an internal power supply anti-interference module, the two ends of which are respectively located on two internal voltage power supply pins of the microprocessor chip, and the two internal voltage power supply pins provide different internal voltages.

[0011] Furthermore, the microprocessor chip is a TLSR825X series chip.

[0012] Furthermore, the microprocessor chip provides 32 GPIO interfaces, including 3 sets of pin groups for connecting to 3 interfaces, including active interfaces and / or passive interfaces.

[0013] Furthermore, the Bluetooth antenna is an onboard antenna.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: by setting a microprocessor chip and one or more interfaces, it can be connected to external devices such as sensors for data acquisition and processing, and then sent to the host computer via Bluetooth to meet data processing and communication needs; by building a low-power power supply module and a crystal oscillator module, sleep-wake control can be realized, effectively reducing the power consumption of the module; by setting test points, different firmware can be upgraded to realize different application scenarios. This utility model can be used alone in wireless toys, home electronic products, industrial control and other fields, and can also be used as a smart mobile device or PC accessory to realize data processing and transmission functions.

[0015] This invention effectively expands the application scenarios of the product through architectural optimization, making it highly flexible and significantly reducing power consumption. The product is also small in size and easy to install. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural block diagram of the present utility model;

[0018] Figure 2 This is a circuit schematic diagram of an embodiment of the present invention. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0020] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the Bluetooth microprocessor module of this utility model includes a microprocessor chip, a crystal oscillator module, an antenna debugging module, a low-power power supply module, and one or more interfaces, all connected to the microprocessor chip. It also includes a Bluetooth antenna. The microprocessor chip is connected to the Bluetooth antenna through the antenna debugging module. The input terminal of the microprocessor chip is connected to the output terminal of the crystal oscillator module. The microprocessor chip also has pin groups that are connected one-to-one with the interface modules. The microprocessor chip also has test points for connecting to an external host computer for firmware upgrades and testing.

[0023] Preferably, this example further includes a signal matching module disposed between the antenna tuning module and the antenna. The antenna tuning module tunes the antenna to a suitable frequency. Then, the signal matching module performs further processing such as filtering on the signal to improve the communication quality.

[0024] like Figure 2As shown, the microprocessor chip in this example is a microprocessor that integrates signal acquisition, processing and forwarding. It is preferably a TLSR825X series chip, which has an embedded 32-bit controller and better power balancing performance. In addition, it has 32 GPIOs, which can support multiple interface connections to peripherals.

[0025] like Figure 2 As shown, the antenna debugging module in this example includes capacitor C8, capacitor C10, and inductor L2. One end of capacitor C8 is connected to the first antenna pin of the microprocessor chip, one end of capacitor C10 is connected to the second antenna pin of the microprocessor chip, and the two ends of inductor L2 are connected to one end of capacitor C8 and one end of capacitor C10, respectively. The other end of capacitor C8 is connected to the signal matching module, and the other end of capacitor C10 is grounded.

[0026] The signal matching module in this example includes capacitors C6 and C7, and inductor L1. One end of capacitor C6 and one end of capacitor C7 are respectively connected to the two ends of capacitor C8. The other ends of capacitors C6 and C7 are grounded. Inductor L1 is connected in series at the Bluetooth antenna connection end. The signal matching module in this example also has reserved grounding capacitors C5 and C9 at the Bluetooth antenna end, which are connected in parallel between inductor L1 and the Bluetooth antenna. Using the signal matching module and antenna tuning module of this invention, the signal of this invention is tuned to 2400MHz-2480MHz and then transmitted through the Bluetooth antenna. Preferably, the Bluetooth antenna in this example is an onboard antenna, eliminating the need for an external antenna and further reducing the difficulty of antenna modulation.

[0027] This example also includes an internal power supply anti-interference module. The two ends of this module are respectively located at two internal voltage supply pins 16 and 17 of the microprocessor chip U1, and the internal voltages provided by these two pins are different. In this example, the internal power supply anti-interference module is an inductor L3. The microprocessor chip U1 also provides two low-power voltage outputs: the first is a 1.2V voltage output from external power supply pin 18, and the second is a 1.2V power supply voltage output from external power supply pin 39, meeting the low-power supply requirements.

[0028] The microprocessor chip U14 in this example contains three pin groups for connecting to three interfaces CN1, CN2 and CN3. Interfaces CN1 and CN2 are passive interfaces that can be connected to signal acquisition components such as sensors that do not require power. In this example, interface CN3 is an active interface that provides operating voltage to the peripheral device. Through these two types of interfaces, most signal acquisition needs can be met.

[0029] Compared with existing technologies, the beneficial effects of this utility model are as follows: Through architectural optimization, this utility model effectively expands the application scenarios of the product, offering high flexibility and significantly reducing power consumption. The product is small in size, low in cost, easy to install, and highly practical. Specifically, by setting up a microprocessor chip and one or more interfaces, it can connect to external devices such as sensors for data acquisition and processing, and then transmit the processed data to a host computer via Bluetooth, meeting data processing and communication needs. Through the built-in low-power power supply module and crystal oscillator module, sleep / wake-up control can be achieved, effectively reducing module power consumption. By setting test points, different firmware can be upgraded to achieve different application scenarios. This utility model can be used independently in wireless toys, home electronics, industrial control, and other fields, or as a smart mobile device or PC accessory to realize data processing and transmission / reception functions. This utility model integrates radio frequency (RF), digital processing, protocol stack software, and multi-standard configuration into a single microprocessor chip. The embedded flash memory enables dynamic stacking and configuration, and the final product functions can be configured through software, possessing strong flexibility and versatility. This invention is particularly suitable for low-power sensors and PC / Phone accessories, and for applications where power consumption, size, and cost are critical.

[0030] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A Bluetooth microprocessor module, characterized by: The application relates to a microprocessor chip, a crystal module connected with the microprocessor chip, an antenna debugging module, a low-power power supply module, more than one interface, and a Bluetooth antenna, wherein the microprocessor chip is connected with the Bluetooth antenna through the antenna debugging module, the input end of the microprocessor chip is connected with the output end of the crystal module, the microprocessor chip is further provided with a pin group corresponding to the interface module, the microprocessor chip is further provided with a test point for externally connecting an upper computer and used for firmware upgrading and testing.

2. The Bluetooth microprocessor module of claim 1, wherein: The application further comprises a signal matching module arranged between the antenna debugging module and the antenna.

3. The Bluetooth microprocessor module of claim 2, wherein: The antenna debugging module comprises a capacitor C8, a capacitor C10 and an inductor L2, wherein one end of the capacitor C8 is connected with a first antenna pin of the microprocessor chip, one end of the capacitor C10 is connected with a second antenna pin of the microprocessor chip, two ends of the inductor L2 are respectively connected with one end of the capacitor C8 and one end of the capacitor C10, the other end of the capacitor C8 is connected with the signal matching module, and the other end of the capacitor C10 is grounded.

4. The Bluetooth microprocessor module of claim 3, wherein: The signal matching module comprises a capacitor C6, a capacitor C7 and an inductor L1, wherein one end of the capacitor C6 and one end of the capacitor C7 are respectively connected with two ends of the capacitor C8, the other ends of the capacitor C6 and the capacitor C7 are grounded, and the inductor L1 is connected in series with the Bluetooth antenna.

5. The Bluetooth microprocessor module of claim 4, wherein: The signal matching module further comprises a grounding capacitor C5 and a grounding capacitor C9, and the grounding capacitor C5 and the grounding capacitor C9 are connected in parallel between the inductor L1 and the Bluetooth antenna.

6. The Bluetooth microprocessor module of claim 1, wherein: The application further comprises an internal power anti-interference module, two ends of the internal power anti-interference module are respectively arranged at two internal voltage supply pins of the microprocessor chip, and the two internal voltage supply pins provide different internal voltages.

7. The Bluetooth microprocessor module according to any of claims 1-6, characterized by: The microprocessor chip is a TLSR825X series chip.

8. The Bluetooth microprocessor module of claim 7, wherein: The microprocessor chip provides 32 GPIO interfaces, contains three groups of pin groups, and is used for connecting three interfaces, wherein the interfaces comprise active interfaces and / or passive interfaces.

9. The Bluetooth microprocessor module according to any of claims 1-6, characterized by: The Bluetooth antenna is a board-mounted antenna.

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