RU205134U1 - Repeater for mobile phone with Bluetooth module - Google Patents

Abstract

The utility model relates to the field of mobile communications. The technical result consists in providing the possibility of receiving radio signals from transmitters of external sensors and retransmitting them to Bluetooth receivers, with the possibility of connecting digital devices via the SPI interface. The device contains a case and a board placed inside it, on which electronic elements are interconnected: a Bluetooth module, a power adapter, a connector for connecting devices via the SPI interface, a radio module is interconnected with direct and feedback with a microcontroller and through it with a Bluetooth module, while the microcontroller has the ability to direct contact with the connector for connecting devices via the SPI interface, in addition, the power adapter is serially connected to the microUSB connector, the battery charging unit connected by direct and feedback to the built-in battery, and the power supply, the latter is interconnected with the Bluetooth module, microcontroller, radio module, while the case is made in the form of a bracelet, on the side edges of the case there are: technological holes for a connector for connecting devices via the SPI interface and an antenna connector, a socket for a power connector, fasteners for a strap. 2 ill.

Description

The utility model relates to the field of technology - mobile communications, or rather to hardware and software radio communications used in conjunction with mobile (cellular) phones, in particular, is intended for relaying radio signals from various sensors and devices to Bluetooth devices (smartphone, tablet, etc.) ) and vice versa, in various types of institutions.

A device, method and system for a Bluetooth repeater is known, containing a plurality of radio frequency transceivers and a repeater, while Bluetooth can receive Bluetooth messages from a source Bluetooth-enabled device within the range, and then forward the same data to an intended recipient that was outside the range of the source device with Bluetooth support (Patent US 6968153 В1. Publ. 22.11.2005).

A known method of data transmission, Bluetooth repeater Bluetooth system, including at least a Bluetooth Beacon-repeater containing: a transmitter, when used in positioning mode, positioning as a Bluetooth-beacon of broadcast information; and the receiver when the system is in debug mode (Publication No. CN 108289294. Publ. 2018-07-17).

A repeater device is known for reducing electromagnetic radiation transmitted from antennas of cell phones and extending the life of a telephone battery, in which an inexpensive repeater is used to reduce the transmission power of a cell phone. The cell phone transmits a low power modulated carrier signal to a nearby repeater. The repeater amplifies the signal and transmits it to the CS. In this case, the communication system contains a cell phone, including: a transmitter for transmitting low-power short-range signals; and a repeater including: a receiving antenna for receiving low power signals over short distances from the cell phone; a power amplifier for amplifying signals from a cell phone; and a transmitting antenna for transmitting powerful long-range signals to cellular base stations (Application US 20130035090 A1. Publ. 07.02.2013).

Known is a wireless transmission system, a relay device, a wireless destination device and a wireless source device comprising a device that transmits AV content wirelessly and a plurality of wireless destination devices for playing the transmitted AV content. The content transfer apparatus has a group identification table that stores a group ID for identifying the group generated by the recipient wireless device. The device adds the group ID extracted from the group identification table to the control command to control recipient devices, and wirelessly transmits the control command having the group ID. Receiving devices receive the wirelessly transmitted control command from the device if the corresponding group ID is added to the control command. The content transfer device consists of a wired source device and a relay device wired to the wired source device, and the relay device is wirelessly connected to the wireless destination device and mutually converts the wired control command reported to the wired source device and the wireless a control command communicated to the wireless receiver device, while the wired source device and the repeater device are connected via HDMI (Patent RU No. 2480943. Published 04/27/2013).

The closest in technical essence to the proposed is a Repeater for a mobile phone with a Bluetooth module according to US Pat. RF No. 2693913, H04W 88/04 (2009.01). The technical result of a repeater for a mobile phone with a Bluetooth module is the ability to provide light illumination for visualizing the incoming radio signal. A repeater for a mobile phone with a Bluetooth module includes a case equipped with a control button and a board located inside it, on which electronic elements are interconnected: a Bluetooth module, a power adapter. The radio module is interconnected by direct and feedback with the microcontroller and through it with the Bluetooth module, in addition, the microcontroller is connected to a multi-color RGB LED control unit connected to an RGB LED and a two-color indicator LED, while the microcontroller has direct contact with the control button, in addition , the power adapter is connected in series with the micro USB connector, the battery charging unit, connected by direct and feedback with the built-in battery, and the power supply, the latter is interconnected with the Bluetooth module, microcontroller, radio module and RGB LED control unit, while the case is made in the form of a prism, equipped with a cover with a light guide around the perimeter.

This Repeater for a mobile phone with a Bluetooth module does not provide the ability to measure the voltage on the battery and connect peripheral equipment via the SPI interface to expand the functionality of the repeater.

The objective of this utility model is to develop a design of a wearable repeater, which is aimed at achieving a technical result that manifests itself in receiving radio signals from transmitters of external sensors at radio frequencies of 868 MHz and retransmitting them to Bluetooth receivers (smartphone, tablet, etc.), with the ability to connect digital devices via the SPI interface, the formation of a stabilized voltage for powering all units of the structure, monitoring the battery voltage.

The task is solved by the fact that in a repeater to a mobile phone with a Bluetooth module, which includes a case and a board located inside it, on which electronic elements are interconnected: a Bluetooth module, a power adapter, a connector for connecting devices via an SPI interface, the radio module is interconnected with direct and feedback a microcontroller and through it with a Bluetooth module, while the microcontroller has direct contact with the connector for connecting devices via the SPI interface, in addition, the power adapter is serially connected to the microUSB connector, a battery charging unit connected by direct and feedback with the built-in battery, and a power supply , the latter is interconnected with a Bluetooth module, a microcontroller, a radio module, while the case is made in the form of a bracelet, on the side edges of the case there are: technological holes for a connector for connecting devices via the SPI interface and an antenna connector, a power connector, strap mounts.

It is advisable, for ease of use, the body of the repeater is made in the form of a bracelet.

A repeater for a mobile phone with a Bluetooth module (hereinafter referred to as a repeater) contains a board with located and interconnected electronic elements.

This utility model is illustrated by a detailed description and diagrams, in which:

FIG. 1 - shows a board on which, in a certain relationship depending on the task, the electronic elements of the repeater circuitry block are arranged, according to the utility model;

FIG. 2 - shows the implementation of the repeater body.

The functional - constructive solution refers to a utility model and consists of a repeater, a power cable and a power adapter that converts the alternating voltage of the 220V / 50Hz network into DC + 5V.

On board 1, electronic elements are arranged as follows (Fig. 1).

The radio module 2 is interconnected by direct and feedback with the microcontroller 3 and through it with the Bluetooth module 4. The microcontroller 3 is connected to the connector 6 of the SPI interface.

Microcontroller 3 has direct contact with SPI connector 6. In addition, the power adapter 10, also known as the power supply, is serially connected to the micro USB connector 7, the battery charging unit 8, connected by direct and feedback to the battery 5, and direct communication with the power supply 9. The power supply 9 is interconnected by direct communication with the Bluetooth module 4, microcontroller 3, radio module 2, and SPI connector 5.

In this case, the body 15 of the repeater is made in the form of a bracelet (Fig. 2). Connecting elements (not shown) are formed inside the housing 15. On the front face of the case 15 there is a connector for connecting devices via the SPI interface. Technological holes are made on the upper edges of the housing 15 for the socket 11 of the power connector and for the socket 12 of the antenna connection.

The repeater is used as follows.

The cover 16 and the case 15 are made by molding, taking into account the socket 11 of the power connector, the socket of the connector 12 for connecting the antenna and the socket 17 of the connector for connecting devices via the SPI interface. On the sides there are fastenings 13 and 14 for the strap.

1 block diagram is compiled on the board.

Microcontroller 3 is connected with the possibility of direct and feedback with radio module 2, Bluetooth module 4 and connector 5 of the SPI interface. The block diagram uses: microcontroller 3 model STM32L0, Bluetooth module 4 model HJ-580LA, radio module 2 with a frequency of 868 MHz model SX1276, which is connected to the antenna connector 12. Power adapter 10, connect to ~ 220V electrical network.

In this case, the mentioned power adapter 10, having an output voltage of + 5V, is connected to the micro USB connector 7. The micro USB connector 7 is connected with the possibility of direct and feedback with the charging unit 8 of the built-in battery 5 and the power supply unit 9 having an output voltage of + 3.3V, from which they are powered: Bluetooth module 4, microcontroller 3, radio module 2.

Then the board 1 with the assembled block circuit is placed inside the housing 15 so that on one of its side faces are mounted: the power connector 11, the antenna connector 12 and the socket 17 of the connector for connecting devices via the SPI interface.

The assembled repeater is used to relay radio signals (868 MHz) that are received from various sensors and devices to Bluetooth devices (smartphone, tablet, etc.) and vice versa.

Before starting work, a wire from the 220V / + 5V power adapter 10 was connected to the micro USB (+ 5V) connector 7. Further, power (+ 5V) was supplied to the charging unit 8 of the battery 5, which charged the said battery 5. Then the power was supplied to the power supply unit 9 (+ 3.3V), which formed a stabilized voltage (+ 3.3V) to power all the repeater units.

The repeater turned on automatically when power was applied. The repeater turned off when the battery voltage 5 drops to a value of + 3.3V. Before shutting down, the repeater sent a signal to stop working by radio.

A built-in battery 5 provided backup power to the repeater for several days.

A password was entered to pair the repeater with external radios and Bluetooth devices. After the connection was established for the first time, the devices connected to each other automatically.

Radio module 2 (868MHz SX1276) received a signal from a sensor or other device, transmitted it to microcontroller 3 (STM32L0). Microcontroller 3 processed it and transmitted it to Bluetooth module 4 (HJ-580LA), which sent it to the Bluetooth device. Similarly, the signal was relayed from Bluetooth devices to 868 MHz sensors and devices.

Using radio commands, we controlled the operation of microcontroller 3.

When using a repeater, the range of the sensor's radio signal increased to 150 m.

The proposed repeater complies with the requirements of GOST R 50267.0.2 in terms of operational safety.

The proposed repeater increases the range of the radio signal with the possibility of electrical connection of devices via the SPI interface.

The proposed repeater relays radio signals from external sensors transmitters at 868 MHz radio frequencies to Bluetooth receivers (smartphone, tablet, etc.).

In addition, the proposed repeater generates a stabilized voltage to power all its units.

Claims (1)

A repeater for a mobile phone with a Bluetooth module, including a case and a board located inside it, on which electronic elements are interconnected: a radio module, a microcontroller, a Bluetooth module, a battery, a microUSB connector, a battery charging unit, a power supply, while the radio module is interconnected with direct and feedback microcontroller and through it with the Bluetooth module, in addition, the power adapter is connected in series with the microUSB connector, the battery charging unit connected by direct and feedback with the built-in battery, and the power supply, the latter is interconnected with the Bluetooth module, the microcontroller and the radio module, characterized in that additionally contains a connector for connecting devices via the SPI interface, the microcontroller has a contact with the connector for connecting devices via the SPI interface and has an interconnection with the battery, while the case is made in the form of a bracelet, on one of the side faces of the case there are: technological holes for the connector devices via SPI interface and antenna connector, power connector socket.

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