CN112994755A - High-stability low-power-consumption Bluetooth chip with multiple hardware functions - Google Patents
High-stability low-power-consumption Bluetooth chip with multiple hardware functions Download PDFInfo
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- CN112994755A CN112994755A CN202110158853.8A CN202110158853A CN112994755A CN 112994755 A CN112994755 A CN 112994755A CN 202110158853 A CN202110158853 A CN 202110158853A CN 112994755 A CN112994755 A CN 112994755A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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Abstract
The invention discloses a high-stability low-power-consumption Bluetooth chip with multiple hardware functions, which comprises a CPU, a Bluetooth controller module, a low-power-consumption Bluetooth controller module, an accelerometer measuring module, a gyroscope measuring module, a bioelectricity signal measuring module and other system modules. The invention relates to the technical field of Bluetooth chips, in particular to a high-stability low-power Bluetooth chip with multiple hardware functions.
Description
Technical Field
The invention relates to the technical field of Bluetooth chips, in particular to a high-stability multi-hardware-function low-power-consumption Bluetooth chip.
Background
A wearable device is a portable device that is worn directly on a target object, particularly a human body, or integrated into a user's clothing or accessory. The wearable device is usually provided with a detection device inside, and the detection device is used for detecting a target object. The existing Bluetooth chip has two transmission modes of classic Bluetooth and Low-power dual-mode Bluetooth, the classic Bluetooth supports both Basic Rate (Basic Rate, BR)/Enhanced Rate (Enhanced Data Rate, EDR), the Low-power dual-mode Bluetooth considers both Low-power consumption (BLE), and can support both Basic Rate (Basic Rate, BR)/Enhanced Rate (Enhanced Data Rate, EDR).
The Bluetooth chip that current wearable equipment adopted Energy consumption is big and the function is single, by the restriction of cost, Energy consumption and PCB space demand, the Low-power consumption bimodulus Bluetooth that supports Basic Rate (Basic Rate, BR) simultaneously, enhancement Rate (Enhanced Data Rate, EDR) and have Low-power consumption (Bluetooth Low Energy, BLE) still does not appear in the market at present, communication chip, biological electricity signal measurement sensor (including differential amplifier, AD converter) and gyroscope, accelerometer (inertial measurement unit, IMU) multiple hardware integration in the Bluetooth communication chip of Low-power consumption of an organic whole.
Disclosure of Invention
In view of the above situation, in order to make up for the above existing drawbacks, the present invention provides a high-stability and multi-hardware low-power consumption bluetooth chip with good stability, low cost, and functions of gyroscope, accelerometer, bio-electrical signal measurement, and bluetooth communication, wherein the bluetooth chip integrates various sensors and bio-signal sampling circuits, a single chip can satisfy the use requirements, the bluetooth chip considers the transmission modes of low energy consumption (low transmission rate) and traditional bluetooth (high transmission rate) to satisfy the transmission requirements between different transmission data amounts and power consumption, and the bluetooth chip is particularly suitable for miniaturized low-power consumption wearable bio-sensing devices.
The invention provides the following technical scheme: the invention relates to a high-stability low-power-consumption Bluetooth chip with multiple hardware functions, which comprises a CPU, a Bluetooth controller module, a low-power-consumption Bluetooth controller module, a radio transceiver, an accelerometer measuring module, a gyroscope measuring module, a bioelectricity signal measuring module and other system modules, wherein the Bluetooth controller module is connected with the CPU;
the CPU is responsible for processing and calculating data input by the Bluetooth controller module, the low-power Bluetooth controller module, the accelerometer measuring module, the gyroscope measuring module, the bioelectricity signal measuring module and other system modules;
the radio transceiver is used for receiving radio data and signals;
the Bluetooth controller module (BT) or the low-power Bluetooth controller module is responsible for decoding data and signals received by the radio transceiver and sending the data and signals to the CPU for processing;
the accelerometer measurement module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are responsible for acquiring acceleration data, the ADC analog conversion digital circuit converts the acceleration data into digital signals, and the digital motion coprocessor preprocesses the digital signals and sends the digital signals to a CPU for processing;
the gyroscope measurement module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are used for acquiring attitude data, the ADC analog conversion digital circuit is used for converting the attitude data into digital signals, and the digital motion coprocessor is used for preprocessing the digital signals and sending the digital signals to a CPU for processing;
the bioelectrical signal measuring module comprises a programmable gain fully-differential amplifier and an ADC (analog-to-digital converter) analog-to-digital conversion circuit, wherein the programmable gain fully-differential amplifier is responsible for amplifying an analog signal of acquired bioelectrical signal data, the ADC analog-to-digital conversion circuit converts the bioelectrical signal data of the method into a digital signal and sends the digital signal to a CPU (central processing unit) for processing, and the CPU can control the programmable gain fully-differential amplifier to adjust the amplification factor according to the output data of the ADC analog-to-digital conversion circuit and through a data bus;
and the other system modules are responsible for assisting in ensuring the running of the CPU and comprise a UART/SPI serial port, a GPIO, a clock source, a reset circuit, a program storage module and a memory module.
Furthermore, accelerometer measuring module and gyroscope measuring module all are equipped with self-checking module, self-checking module is used for every measuring axis of self-checking.
Further, the CPU is a 32-bit processor core.
Furthermore, the Bluetooth controller module or the low-power Bluetooth controller module conforms to Bluetooth4.0, Bluetooth4.2 and Bluetooth5.0 protocols, is compatible with EDR/BR/BLE, and can select the Bluetooth protocol or the low-power Bluetooth protocol for communication according to different communication speed requirements and power consumption control.
Furthermore, the radio frequency band of the radio transceiver is 2.4GHz, and the radio transceiver supports UHF radio waves of ISM bands of 2.4-2.485 GHz.
The invention with the structure has the following beneficial effects: according to the high-stability low-power-consumption Bluetooth chip with multiple hardware functions, multiple functions of low-power-consumption Bluetooth communication, a gyroscope, an accelerometer and bioelectricity signal measurement are realized in a single chip through integration of multiple hardware modules, the utilization rate of the chip is reduced, the hardware cost is reduced, the hardware design difficulty is reduced, and the high-stability low-power-consumption Bluetooth chip is suitable for miniaturized low-power-consumption wearable biosensing equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a high-stability multi-hardware-function Bluetooth low energy chip according to the present invention;
FIG. 2 is a block diagram of a high-stability multi-hardware-function low-power-consumption Bluetooth chip accelerometer measurement module according to the present invention;
FIG. 3 is a block diagram of a high-stability multi-hardware-function low-power consumption Bluetooth chip gyroscope measurement module according to the present invention;
fig. 4 is a block diagram of a high-stability multi-hardware-function low-power-consumption bluetooth chip bioelectrical signal measuring module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 4, the technical scheme adopted by the invention is as follows: a high-stability low-power Bluetooth chip with multiple hardware functions comprises a CPU, a Bluetooth controller module, a low-power Bluetooth controller module, a radio transceiver, an accelerometer measuring module, a gyroscope measuring module, a bioelectricity signal measuring module and other system modules.
The CPU is responsible for processing and calculating data input by the Bluetooth controller module, the low-power-consumption Bluetooth controller module, the accelerometer measuring module, the gyroscope measuring module, the bioelectrical signal measuring module and other system modules.
The radio transceiver is used for receiving radio data and signals.
The Bluetooth controller module (BT) or the low-power Bluetooth controller module is responsible for decoding the data and signals received by the radio transceiver and sending the data and signals to the CPU for processing.
The accelerometer measurement module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are responsible for acquiring acceleration data, the ADC analog conversion digital circuit converts the acceleration data into digital signals, and the digital motion coprocessor preprocesses the digital signals and sends the digital signals to the CPU for processing.
The gyroscope measuring module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are responsible for acquiring attitude data, the ADC analog conversion digital circuit is used for converting the attitude data into digital signals, and the digital motion coprocessor is responsible for preprocessing the digital signals and sending the digital signals to the CPU for processing.
The bioelectrical signal measuring module comprises a programmable gain fully-differential amplifier and an ADC analog-to-digital conversion circuit, wherein the programmable gain fully-differential amplifier is responsible for amplifying analog signals of acquired bioelectrical signal data, the ADC analog-to-digital conversion circuit converts the bioelectrical signal data into digital signals and sends the digital signals to a CPU for processing, and the CPU can control the programmable gain fully-differential amplifier to adjust the amplification factor according to the output data of the ADC analog-to-digital conversion circuit and through a data bus.
And other system modules are responsible for assisting in ensuring the running of the CPU and comprise a UART/SPI serial port, a GPIO, a clock source, a reset circuit, a program storage module and a memory module.
The accelerometer measuring module and the gyroscope measuring module are both provided with self-checking modules, and the self-checking modules are used for self-checking each measuring shaft. The CPU is a 32-bit processor core. The Bluetooth controller module or the low-power-consumption Bluetooth controller module conforms to Bluetooth4.0, Bluetooth4.2 and Bluetooth5.0 protocols, is compatible with EDR/BR/BLE, and can select the Bluetooth protocol or the low-power-consumption Bluetooth protocol to communicate according to different communication rate requirements and power consumption control. The radio frequency band of the radio transceiver is 2.4GHz, and the radio transceiver supports UHF radio waves of ISM bands of 2.4-2.485 GHz.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a many hardware function's of high stability bluetooth low energy chip which characterized in that: the system comprises a CPU, a Bluetooth controller module, a low-power Bluetooth controller module, a radio transceiver, an accelerometer measuring module, a gyroscope measuring module, a bioelectric signal measuring module and other system modules;
the CPU is responsible for processing and calculating data input by the Bluetooth controller module, the low-power Bluetooth controller module, the accelerometer measuring module, the gyroscope measuring module, the bioelectricity signal measuring module and other system modules;
the radio transceiver is used for receiving radio data and signals;
the Bluetooth controller module or the low-power Bluetooth controller module is responsible for decoding data and signals received by the radio transceiver and sending the data and signals to the CPU for processing;
the accelerometer measurement module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are responsible for acquiring acceleration data, the ADC analog conversion digital circuit converts the acceleration data into digital signals, and the digital motion coprocessor preprocesses the digital signals and sends the digital signals to a CPU for processing;
the gyroscope measurement module comprises a self-checking module, sensors in the three directions of XYZ, an ADC analog conversion digital circuit and a digital motion coprocessor, wherein the sensors in the three directions of XYZ are used for acquiring attitude data, the ADC analog conversion digital circuit is used for converting the attitude data into digital signals, and the digital motion coprocessor is used for preprocessing the digital signals and sending the digital signals to a CPU for processing;
the bioelectrical signal measuring module comprises a programmable gain fully differential amplifier and an ADC analog-to-digital conversion circuit, wherein the programmable gain fully differential amplifier is responsible for amplifying analog signals of acquired bioelectrical signal data, and the ADC analog-to-digital conversion circuit converts the bioelectrical signal data of the method into digital signals and sends the digital signals to a CPU for processing;
and the other system modules are responsible for assisting in ensuring the running of the CPU and comprise a UART/SPI serial port, a GPIO, a clock source, a reset circuit, a program storage module and a memory module.
2. The high-stability multi-hardware-function bluetooth low energy chip according to claim 1, wherein: the accelerometer measuring module and the gyroscope measuring module are both provided with self-checking modules, and the self-checking modules are used for self-checking each measuring shaft.
3. The high-stability multi-hardware-function bluetooth low energy chip according to claim 1, wherein: the CPU is a 32-bit processor core.
4. The high-stability multi-hardware-function bluetooth low energy chip according to claim 1, wherein: the Bluetooth controller module or the low-power Bluetooth controller module conforms to protocols of Bluetooth4.0, Bluetooth4.2 and Bluetooth5.0 and is compatible with SDR/BR/BLE.
5. The high-stability multi-hardware-function bluetooth low energy chip according to claim 1, wherein: the radio frequency band of the radio transceiver is 2.4GHz, and the radio transceiver supports UHF radio waves of ISM bands of 2.4-2.485 GHz.
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| CN202110158853.8A CN112994755A (en) | 2021-02-04 | 2021-02-04 | High-stability low-power-consumption Bluetooth chip with multiple hardware functions |
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| CN106683367A (en) * | 2015-11-05 | 2017-05-17 | 都江堰乔可欣科技有限公司 | Multifunctional bluetooth remote controller |
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| CN111820893A (en) * | 2020-06-24 | 2020-10-27 | 浙江大学 | Portable wireless wearable muscle movement signal acquisition system |
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2021
- 2021-02-04 CN CN202110158853.8A patent/CN112994755A/en active Pending
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| US20140156036A1 (en) * | 2012-11-30 | 2014-06-05 | Jung-Tang Huang | Sports competition application system |
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