Low-power-consumption repeater

Abstract

The utility model discloses a low-power-consumption repeater, which comprises a battery, a 2.4 G ultra-low-power-consumption Bluetooth module, a low-power-consumption Flash circuit, a three-axis acceleration sensor circuit and a driving circuit, and is characterized in that a power supply of the battery is used for supplying power to the 2.4 G ultra-low-power-consumption Bluetooth module, the low-power-consumption Flash circuit and the three-axis acceleration sensor circuit; the 2.4 G ultra-low power consumption Bluetooth module is respectively in communication connection with the low-power consumption Flash circuit, the three-axis acceleration sensor circuit and the driving circuit; according to the utility model, the 2.4 G low-power-consumption Bluetooth chip low-power-consumption broadcasting and scanning technology is utilized, the low-power-consumption Bluetooth relay transmission function is realized, and the defects of limited terminal signal transmission distance and limited receiving distance of a receiving end are overcome; according to the technical scheme, Bluetooth scanning can be started for a period of time by monitoring the moving state of the equipment according to the use scene of the product, and scanning does not need to be started periodically to scan surrounding beacon equipment information, so that lower power consumption is realized, and the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of repeater technology, specifically relating to a low-power repeater. Background Technology

[0002] A repeater, as the name suggests, is a bridging device that amplifies signals between two or more user terminals, enhancing their signal broadcasting capabilities. Most repeaters on the market primarily relay WiFi signals. For example, the most common type is a WiFi amplifier, which is essentially a WiFi repeater. It receives weak WiFi signals, amplifies them, and then retransmits them to extend WiFi coverage. This is a repeating method for WiFi scenarios, but it's only suitable for WiFi usage and, due to its technological limitations, cannot meet the demands of the Internet of Things (IoT) era for stable signal transmission and low power consumption. Utility Model Content

[0003] In view of this, the main objective of this utility model is to provide a low-power repeater.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] This utility model embodiment 1 provides a low-power repeater, the tag including a battery, a 2.4G ultra-low power Bluetooth module, a low-power Flash circuit, a three-axis accelerometer sensor circuit, and a drive circuit;

[0006] The battery is electrically connected to the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit, respectively, and is used to power the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit.

[0007] The 2.4G ultra-low power Bluetooth module is connected to the low power Flash circuit through a communication interface for data storage and retrieval.

[0008] The 2.4G ultra-low power Bluetooth module is communicatively connected to the triaxial accelerometer circuit and is used to acquire motion state data collected by the triaxial accelerometer circuit to control Bluetooth activation and deactivation.

[0009] The 2.4G ultra-low power Bluetooth module is also connected to the driving circuit via a control signal line, and is used to control the working state of the driving circuit according to external instructions or preset logic.

[0010] In the above scheme, the 2.4G ultra-low power Bluetooth module includes a 2.4G ultra-low power Bluetooth chip, and the power output terminal VCC of the battery is connected to the VCC terminal of the 2.4G ultra-low power Bluetooth chip to supply power to the 2.4G ultra-low power Bluetooth chip.

[0011] In the above scheme, the 2.4G ultra-low power Bluetooth module further includes an antenna circuit, which includes a first inductor, a second inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and an antenna. The first end of the first inductor is connected to the first end of the first capacitor and the ANT terminal of the 2.4G ultra-low power Bluetooth chip. The second end of the first inductor is connected to the first end of the second capacitor, the first end of the third capacitor, and the first end of the second inductor. The second end of the second inductor is connected to the first end of the fourth capacitor and the first end of the antenna. The second end of the antenna is connected to the second end of the fourth capacitor and then grounded. The second ends of the first capacitor, the second end of the second capacitor, and the second end of the third capacitor are all grounded.

[0012] In the above scheme, the low-power Flash circuit includes a storage chip, a first resistor, a second resistor, and a seventh capacitor. The power output terminal VCC of the battery is connected in series with the first resistor and then connected to the WP terminal of the storage chip. The power output terminal VCC of the battery is connected to the first terminal of the second resistor and the first terminal of the seventh capacitor, respectively. The second terminal of the second resistor is connected to the HOLD terminal of the storage chip.

[0013] In the above scheme, the DO terminal of the storage chip is connected to the P0.25 terminal of the 2.4G ultra-low power Bluetooth chip, the CS terminal of the storage chip is connected to the P0.26 terminal of the 2.4G ultra-low power Bluetooth chip, the Flash_CLK terminal of the storage chip is connected to the P0.27 terminal of the 2.4G ultra-low power Bluetooth chip, and the DIO terminal of the storage chip is connected to the P0.28 terminal of the 2.4G ultra-low power Bluetooth chip.

[0014] In the above scheme, the triaxial accelerometer circuit includes a triaxial accelerometer, a third resistor, a fourth resistor, and an eighth capacitor. The power output terminal VCC of the battery is connected in series with the third resistor and then connected to the CS terminal of the triaxial accelerometer. The power output terminal VCC of the battery is connected to the VDD terminal of the triaxial accelerometer, the VDD_IO terminal of the triaxial accelerometer, and the first terminal of the eighth capacitor. The second terminal of the eighth capacitor is connected to the GND terminal of the triaxial accelerometer and then grounded.

[0015] In the above scheme, the INT1 terminal of the triaxial accelerometer is connected to the P0.07 terminal of the 2.4G ultra-low power Bluetooth chip, the INT2 terminal of the triaxial accelerometer is connected to the P0.08 terminal of the 2.4G ultra-low power Bluetooth chip, the SCL terminal of the triaxial accelerometer is connected to the P0.11 terminal of the 2.4G ultra-low power Bluetooth chip, and the SDA terminal of the triaxial accelerometer is connected to the P0.12 terminal of the 2.4G ultra-low power Bluetooth chip.

[0016] In the above scheme, the driving circuit includes a piezoelectric sensing driver. The EN1 terminal of the piezoelectric sensing driver is connected to the P0.04 terminal of the 2.4G ultra-low power Bluetooth chip, the EN2 terminal of the piezoelectric sensing driver is connected to the P0.03 terminal of the 2.4G ultra-low power Bluetooth chip, and the DIN terminal of the piezoelectric sensing driver is connected to the P0.02 terminal of the 2.4G ultra-low power Bluetooth chip.

[0017] Compared with existing technologies, this invention utilizes the low-power broadcast and scanning technology of a 2.4G low-power Bluetooth chip to achieve low-power Bluetooth relay transmission, overcoming the limitations of limited signal transmission distance at the terminal and limited receiving distance at the receiving end. Simultaneously, a three-axis accelerometer is incorporated, allowing Bluetooth scanning to be initiated for a period of time based on the device's movement status according to the product's usage scenario. This eliminates the need for periodic scanning of surrounding beacon devices, resulting in lower power consumption and increased product lifespan. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the 2.4G ultra-low power Bluetooth module described in this embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the low-power Flash circuit described in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the triaxial accelerometer circuit described in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive circuit described in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0026] This utility model embodiment provides a low-power repeater tag circuit, such as... Figure 1-4 As shown, the label includes a battery, a 2.4G ultra-low power Bluetooth module, a low power Flash circuit, a three-axis accelerometer sensor circuit, and a drive circuit.

[0027] The battery is electrically connected to the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit, respectively, and is used to power the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit.

[0028] The 2.4G ultra-low power Bluetooth module is connected to the low power Flash circuit through a communication interface for data storage and retrieval.

[0029] The 2.4G ultra-low power Bluetooth module is communicatively connected to the triaxial accelerometer circuit and is used to acquire motion state data collected by the triaxial accelerometer circuit to control Bluetooth activation and deactivation.

[0030] The 2.4G ultra-low power Bluetooth module is also connected to the driving circuit via a control signal line, and is used to control the working state of the driving circuit according to external instructions or preset logic.

[0031] like Figure 1 As shown, the 2.4G ultra-low power Bluetooth module includes a 2.4G ultra-low power Bluetooth chip U1. The power output terminal VCC of the battery is connected to the VCC terminal of the 2.4G ultra-low power Bluetooth chip U1 to supply power to the 2.4G ultra-low power Bluetooth chip U1.

[0032] like Figure 1 As shown, the 2.4G ultra-low power Bluetooth module also includes an antenna circuit, which includes a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and an antenna AJ. The first end of the first inductor L1 is connected to the first end of the first capacitor C1 and the ANT terminal of the 2.4G ultra-low power Bluetooth chip U1. The second end of the first inductor L1 is connected to the first end of the second capacitor C2, the first end of the third capacitor C3, and the first end of the second inductor L2. The second end of the second inductor L2 is connected to the first end of the fourth capacitor C4 and the first end of the antenna AJ. The second end of the antenna AJ is connected to the second end of the fourth capacitor C4 and then grounded. The second ends of the first capacitor C1, the second capacitor C2, and the third capacitor C3 are all grounded.

[0033] The above solution employs a low-power Bluetooth chip that supports Bluetooth 5.0. The Bluetooth chip scans for signal data from nearby fixed or mobile terminals, compares the collected data, and broadcasts it via the Bluetooth antenna. This data is then received by nearby IoT terminals and relayed to the cloud platform for processing. Simultaneously, this asset repeater also supports reverse operation management by the cloud platform, enabling a range of device function configurations: sound alarm, light alarm, scan mode switching, scan function on / off, scan filtering, Bluetooth firmware upgrades, etc. The radio frequency circuit is connected to the Bluetooth chip's radio frequency port; the 2.4G Bluetooth chip's main control circuit is connected to an external crystal oscillator and power filter circuit.

[0034] like Figure 1 and Figure 2 As shown, the low-power Flash circuit includes a storage chip U4, a first resistor R1, a second resistor R2, and a seventh capacitor C7. The power output terminal VCC of the battery is connected in series with the first resistor R1 and then connected to the WP terminal of the storage chip U4. The power output terminal VCC of the battery is connected to the first terminal of the second resistor R2 and the first terminal of the seventh capacitor C7 respectively. The second terminal of the second resistor R2 is connected to the HOLD terminal of the storage chip U4.

[0035] like Figure 1 and Figure 2 As shown, the DO terminal of the storage chip U4 is connected to the P0.25 terminal of the 2.4G ultra-low power Bluetooth chip U1, the CS terminal of the storage chip U4 is connected to the P0.26 terminal of the 2.4G ultra-low power Bluetooth chip U1, the Flash_CLK terminal of the storage chip U4 is connected to the P0.27 terminal of the 2.4G ultra-low power Bluetooth chip U1, and the DIO terminal of the storage chip U4 is connected to the P0.28 terminal of the 2.4G ultra-low power Bluetooth chip U1.

[0036] The above solution uses a low-power Flash circuit design and adopts a standard SPI interface, which has short read, write and erase times, supports software and hardware read and write protection, and has ultra-low power standby, greatly increasing the battery life; at the same time, during the relay scanning process, the flash circuit plays a certain role in storing and protecting the scanned data.

[0037] like Figure 1 and Figure 3 As shown, the triaxial accelerometer circuit includes a triaxial accelerometer U3, a third resistor R3, a fourth resistor R4, and an eighth capacitor C8. The power output terminal VCC of the battery is connected in series with the third resistor R3 and then connected to the CS terminal of the triaxial accelerometer U3. The power output terminal VCC of the battery is connected to the VDD terminal, the VDD_IO terminal of the triaxial accelerometer U3, and the first terminal of the eighth capacitor C8. The second terminal of the eighth capacitor C8 is connected to the GND terminal of the triaxial accelerometer U3 and then grounded.

[0038] like Figure 1 and Figure 3 As shown, the INT1 terminal of the triaxial accelerometer U3 is connected to the P0.07 terminal of the 2.4G ultra-low power Bluetooth chip U1, the INT2 terminal of the triaxial accelerometer U3 is connected to the P0.08 terminal of the 2.4G ultra-low power Bluetooth chip U1, the SCL terminal of the triaxial accelerometer U3 is connected to the P0.11 terminal of the 2.4G ultra-low power Bluetooth chip U1, and the SDA terminal of the triaxial accelerometer U3 is connected to the P0.12 terminal of the 2.4G ultra-low power Bluetooth chip U1.

[0039] In the above scheme, the use of external pull-up resistors for IC communication and the ultra-low power operation mode not only enhances the driving capability but also reduces external interference to the communication. This configuration circuit can also enable the asset repeater to start relay scanning only when triggered by a certain trigger mode definition, which plays a certain role in controlling the power consumption of the overall product.

[0040] Setting up a triaxial accelerometer U3 enables lower power consumption for the device. The specific implementation method is as follows:

[0041] By pre-configuring parameters such as the sampling rate and trigger threshold of the triaxial accelerometer U3, it can promptly detect whether the device has been moved. The signal indicating that the device has been moved is transmitted to the 2.4G ultra-low power Bluetooth chip U1 via the INT1 and INT2 terminals of the triaxial accelerometer. This signal enables the 2.4G ultra-low power Bluetooth chip U1 to initiate Bluetooth scanning for surrounding external beacon devices. The information of the scanned beacon devices is then relayed to the gateway via Bluetooth broadcast. Depending on the product's usage scenario, Bluetooth scanning can be initiated for a period of time by monitoring the device's movement status, eliminating the need for periodic scanning of surrounding beacon devices. This results in lower power consumption and increased product lifespan.

[0042] like Figure 1 and Figure 4 As shown, the driving circuit includes a piezoelectric sensor driver U2. The EN1 terminal of the piezoelectric sensor driver U2 is connected to the P0.04 terminal of the 2.4G ultra-low power Bluetooth chip U1, the EN2 terminal of the piezoelectric sensor driver U2 is connected to the P0.03 terminal of the 2.4G ultra-low power Bluetooth chip U1, and the DIN terminal of the piezoelectric sensor driver U2 is connected to the P0.02 terminal of the 2.4G ultra-low power Bluetooth chip U1.

[0043] In the above solution, the drive circuit includes a piezoelectric detection driver, which integrates a charge pump boost converter. The charge pump can operate in 1X, 2X, and 3X modes, and the decibel level of the buzzer can be flexibly set for different scenarios. Its unique drive technology features low inrush current, low electromagnetic interference, and high efficiency. It also includes built-in automatic shutdown and wake-up to ensure longer battery life, and features overheat shutdown, overcurrent protection, overvoltage protection, and undervoltage lockout.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A low power repeater, characterized by, The repeater includes a battery, a 2.4G ultra-low power Bluetooth module, a low power Flash circuit, a three-axis accelerometer sensor circuit, and a drive circuit. The battery is electrically connected to the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit, respectively, and is used to power the 2.4G ultra-low power Bluetooth module, the low power Flash circuit, and the triaxial accelerometer circuit. The 2.4G ultra-low power Bluetooth module is connected to the low power Flash circuit through a communication interface for data storage and retrieval. The 2.4G ultra-low power Bluetooth module is communicatively connected to the triaxial accelerometer circuit and is used to acquire motion state data collected by the triaxial accelerometer circuit to control Bluetooth activation and deactivation. The 2.4G ultra-low power Bluetooth module is also connected to the driving circuit via a control signal line, and is used to control the working state of the driving circuit according to external instructions or preset logic.

2. The low power repeater of claim 1, wherein, The 2.4G ultra-low power Bluetooth module includes a 2.4G ultra-low power Bluetooth chip. The power output terminal VCC of the battery is connected to the VCC terminal of the 2.4G ultra-low power Bluetooth chip to supply power to the 2.4G ultra-low power Bluetooth chip.

3. The low power repeater of claim 2, wherein, The 2.4G ultra-low power Bluetooth module further includes an antenna circuit, which includes a first inductor, a second inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and an antenna. The first end of the first inductor is connected to the first end of the first capacitor and the ANT terminal of the 2.4G ultra-low power Bluetooth chip. The second end of the first inductor is connected to the first end of the second capacitor, the first end of the third capacitor, and the first end of the second inductor. The second end of the second inductor is connected to the first end of the fourth capacitor and the first end of the antenna. The second end of the antenna is connected to the second end of the fourth capacitor and then grounded. The second ends of the first capacitor, the second end of the second capacitor, and the second end of the third capacitor are all grounded.

4. The low power repeater of claim 3, wherein, The low-power Flash circuit includes a storage chip, a first resistor, a second resistor, and a seventh capacitor. The power output terminal VCC of the battery is connected in series with the first resistor and then connected to the WP terminal of the storage chip. The power output terminal VCC of the battery is connected to the first terminal of the second resistor and the first terminal of the seventh capacitor. The second terminal of the second resistor is connected to the HOLD terminal of the storage chip.

5. The low power repeater of claim 4, wherein, The DO terminal of the storage chip is connected to the P0.25 terminal of the 2.4G ultra-low power Bluetooth chip, the CS terminal of the storage chip is connected to the P0.26 terminal of the 2.4G ultra-low power Bluetooth chip, the Flash_CLK terminal of the storage chip is connected to the P0.27 terminal of the 2.4G ultra-low power Bluetooth chip, and the DIO terminal of the storage chip is connected to the P0.28 terminal of the 2.4G ultra-low power Bluetooth chip.

6. The low power repeater of claim 5, wherein, The triaxial accelerometer circuit includes a triaxial accelerometer, a third resistor, a fourth resistor, and an eighth capacitor. The power output terminal VCC of the battery is connected in series with the third resistor and then connected to the CS terminal of the triaxial accelerometer. The power output terminal VCC of the battery is connected to the VDD terminal of the triaxial accelerometer, the VDD_IO terminal of the triaxial accelerometer, and the first terminal of the eighth capacitor. The second terminal of the eighth capacitor is connected to the GND terminal of the triaxial accelerometer and then grounded.

7. The low power repeater of claim 6, wherein, The INT1 terminal of the triaxial accelerometer is connected to the P0.07 terminal of the 2.4G ultra-low power Bluetooth chip, the INT2 terminal of the triaxial accelerometer is connected to the P0.08 terminal of the 2.4G ultra-low power Bluetooth chip, the SCL terminal of the triaxial accelerometer is connected to the P0.11 terminal of the 2.4G ultra-low power Bluetooth chip, and the SDA terminal of the triaxial accelerometer is connected to the P0.12 terminal of the 2.4G ultra-low power Bluetooth chip.

8. The low power repeater of claim 7, wherein, The driving circuit includes a piezoelectric sensing driver. The EN1 terminal of the piezoelectric sensing driver is connected to the P0.04 terminal of the 2.4G ultra-low power Bluetooth chip, the EN2 terminal of the piezoelectric sensing driver is connected to the P0.03 terminal of the 2.4G ultra-low power Bluetooth chip, and the DIN terminal of the piezoelectric sensing driver is connected to the P0.02 terminal of the 2.4G ultra-low power Bluetooth chip.

Images