Self-powered Bluetooth communication system supporting optical communication and configuration method thereof

Abstract

The invention relates to the field of optical communication, and discloses a self-powered Bluetooth communication system supporting optical communication and a configuration method thereof, and the system comprises a photoelectric detection device, a power management module, and a communication module. The photoelectric detection device is connected with the power management module and the communication module. The power management module is also connected with the communication module; the communication module comprises a Bluetooth device, a system controller and a light receiving circuit; the photoelectric detector, the light receiving circuit, the system controller and the Bluetooth device are connected in sequence; the power management module is connected with the light receiving circuit, the system controller and the Bluetooth device. According to the invention, the problem that energy collection and optical communication cannot be realized simultaneously in the prior art is solved, and the configuration efficiency can be improved while the safety is ensured.

Description

Technical Field

[0001] The present invention relates to the field of optical communications, and more specifically, to a self-powered Bluetooth communication system supporting optical communications and a configuration method thereof. Background Art

[0002] Bluetooth is a low-power device used for short-range radio frequency communication. Bluetooth is usually connected and configured by device managers, and then users scan Bluetooth through devices such as smartphones to communicate or receive broadcast information. It is widely used in the Internet of Things, robots, and portable devices. Existing Bluetooth communication systems usually include a power supply module and a Bluetooth device, and the power supply module is used to power the Bluetooth device. In many applications, Bluetooth needs to be powered by batteries, but the battery life is limited and the battery needs to be replaced regularly. Therefore, self-powered Bluetooth communication systems came into being. Figure 1 The structure of a typical self-powered Bluetooth communication system powered by solar cells is shown. The system collects energy through solar cells, and the power management module stores the collected energy in a supercapacitor, thereby continuously powering Bluetooth. However, the solar cell batteries in the existing self-powered Bluetooth communication system are only used for energy supply, and the function is relatively single. On the other hand, in practical applications, it is usually necessary to manage Bluetooth (such as configuring Bluetooth beacons to provide different broadcast content). However, when using traditional radio frequency methods to configure certain Bluetooth devices in a physical space where a large number of Bluetooth devices are deployed, it is necessary to first match the Bluetooth devices in the physical space with the Bluetooth identification codes scanned in the signal space one by one before they can be correctly configured, which is inefficient.

[0003] There is a Bluetooth device in the prior art, which includes: an optical communication module for receiving an optical signal and processing the optical signal into an electrical signal, a processor for parsing the electrical signal into data, and a Bluetooth device for receiving the data.

[0004] However, the existing technology has the problem of being unable to achieve energy collection and optical communication at the same time. Therefore, how to invent a Bluetooth communication system that can achieve energy collection and optical communication at the same time is a technical problem that urgently needs to be solved in this technical field. Summary of the invention

[0005] In order to solve the problem that the prior art cannot realize energy collection and optical communication at the same time, the present invention provides a self-powered Bluetooth communication system supporting optical communication, which has the characteristics of being able to improve configuration efficiency while ensuring safety.

[0006] In order to achieve the above-mentioned purpose of the present invention, the technical scheme adopted is as follows:

[0007] A self-powered Bluetooth communication system supporting optical communication comprises a photoelectric detection device, a power management module and a communication module; the photoelectric detection device is respectively connected to the power management module and the communication module; the power management module is also connected to the communication module; the communication module comprises a Bluetooth device, a system controller and an optical receiving circuit; the photoelectric detection device, the optical receiving circuit, the system controller and the Bluetooth device are connected in sequence; the power management module is respectively connected to the optical receiving circuit, the system controller and the Bluetooth device.

[0008] Preferably, the photoelectric detection device includes at least one solar cell.

[0009] Furthermore, the power management module includes a power management chip and a supercapacitor C0; the input end of the power management chip is electrically connected to the positive pole of the solar cell; the output end of the power management chip includes a ground interface, a VCC interface, and a VREF interface, and the ground interface is grounded through the supercapacitor C0.

[0010] Furthermore, the optical receiving circuit specifically includes an amplifier and a comparator, a capacitor C1, a resistor R1, and a resistor R2; the positive electrode of the solar cell is electrically connected to the positive electrode of the amplifier through the capacitor C1; the negative electrode of the amplifier is electrically connected to the VREF interface through the resistor R1; the output end of the amplifier is electrically connected to the VREF interface through R2 and R1 in sequence; the output end of the amplifier is also electrically connected to the positive electrode of the comparator; the negative electrode of the comparator is electrically connected to the VREF end; the output end of the comparator is electrically connected to the input end of the system controller; the power supply interfaces of the amplifier, comparator, single-chip microcomputer, and Bluetooth device are all electrically connected to the VCC interface.

[0011] Furthermore, the system controller is specifically a single-chip microcomputer; the TX pin of the single-chip microcomputer is electrically connected to the RX pin of the Bluetooth device, and the RX pin of the single-chip microcomputer is electrically connected to the TX pin of the Bluetooth device.

[0012] A configuration method of a self-powered Bluetooth communication system supporting optical communication, based on the self-powered Bluetooth communication system supporting optical communication, comprises the following specific steps:

[0013] Convert light energy into electrical energy through photoelectric detection devices and input the electrical energy into a power management module;

[0014] Power the Bluetooth device, system controller, and optical receiving circuit of the communication module through the power management module;

[0015] Transmitting an optical signal including configuration information to a photoelectric detection device; the photoelectric detection device converts the optical signal into an electrical signal, and transmits the electrical signal to a communication module;

[0016] The optical receiving circuit of the communication module sequentially filters, amplifies and compares the electrical signal; the system controller of the communication module sequentially demodulates and decodes the processed electrical signal, communicates with the Bluetooth device, and configures the Bluetooth device based on the configuration information.

[0017] Preferably, the photoelectric detection device collects light energy under illumination and converts it into electrical energy.

[0018] Furthermore, the photoelectric detection device receives the light signal and converts the light signal into a voltage signal.

[0019] Furthermore, the power management module stores the collected excess energy in its supercapacitor.

[0020] Furthermore, after the processed electrical signal is input into the system controller, the system controller is awakened and enters the working state; after the system controller decodes the received electrical signal and performs other processing, it communicates with Bluetooth, and issues instructions to configure the Bluetooth device based on the configuration information, thereby configuring various parameters of the Bluetooth device; after the configuration is completed, the system controller re-enters the standby state, and the Bluetooth device communicates or broadcasts with the latest configuration parameters.

[0021] The beneficial effects of the present invention are as follows:

[0022] The present invention discloses a self-powered Bluetooth communication system supporting optical communication, using a photoelectric detection device as an energy collector and an optical signal detector, and introducing an optical receiving circuit for optical communication in a communication module, thereby realizing energy collection and optical communication at the same time. The present invention configures Bluetooth through optical communication, and the configuration of Bluetooth can be realized by simply adding an optical receiving circuit and a system controller on the basis of the original self-powered Bluetooth beacon. Compared with the traditional method of configuring Bluetooth through radio frequency communication, the present invention improves the configuration efficiency while ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a system schematic diagram of a self-powered Bluetooth communication system supporting optical communication of the present invention.

[0024] Figure 2 It is a specific circuit diagram of a self-powered Bluetooth communication system supporting optical communication of the present invention.

[0025] Figure 3 It is a flow chart of a configuration method of a self-powered Bluetooth communication system supporting optical communication according to the present invention. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1 As shown, a self-powered Bluetooth communication system supporting optical communication includes a photoelectric detection device, a power management module, and a communication module; the photoelectric detection device is connected to the power management module and the communication module respectively; the power management module is also connected to the communication module; the communication module includes a Bluetooth device, a system controller, and an optical receiving circuit; the photoelectric detection device, the optical receiving circuit, the system controller, and the Bluetooth device are connected in sequence; the power management module is connected to the optical receiving circuit, the system controller, and the Bluetooth device respectively.

[0029] In order to overcome the shortcomings of the prior art, the present invention proposes a self-powered Bluetooth communication system that supports optical communication, using the same photoelectric detection device, including but not limited to solar cells, as an energy collector and optical signal detector, and introducing an optical receiving circuit for optical communication, so that energy collection and optical communication can be achieved simultaneously. On the one hand, the Bluetooth system can directly communicate with the administrator in line-of-sight optical communication through the photoelectric detection device and receive optical data containing configuration information, thereby avoiding the problem of matching the Bluetooth device in the physical space with the Bluetooth identification code in the signal space one by one in traditional radio frequency communication, thereby improving efficiency. In addition, since optical communication is limited to a certain range, security is guaranteed. On the other hand, optical communication can also serve as a supplement to Bluetooth radio frequency communication, enriching the communication means and functions of the system and expanding the application scenarios of the system.

[0030] Example 2

[0031] More specifically, in a specific embodiment, the photoelectric detection device includes at least one solar cell.

[0032] In this embodiment, the photoelectric detection device includes but is not limited to one or more solar cells, and also includes photoelectric detection devices made of various materials such as silicon, compound semiconductors, perovskites, organic materials, etc. The photoelectric detection device acts as an energy collector on the one hand, for converting light energy into electrical energy, and the collected energy is processed by the power management module; on the other hand, it acts as an optical signal detector, converting optical signals into electrical signals, and then transmitting them to the communication module for processing.

[0033] In a specific embodiment, Figure 2 As shown, the power management module includes a power management chip and a super capacitor C0; the input end of the power management chip is electrically connected to the positive pole of the solar cell; the output end of the power management chip includes a ground interface, a VCC interface, and a VREF interface, and the ground interface is grounded through the super capacitor C0.

[0034] In this embodiment, the supercapacitor C0 is used as an energy storage device to store energy.

[0035] In a specific embodiment, the optical receiving circuit specifically includes an amplifier and a comparator, a capacitor C1, a resistor R1, and a resistor R2; the positive electrode of the solar cell is electrically connected to the positive electrode of the amplifier through the capacitor C1; the negative electrode of the amplifier is electrically connected to the VREF interface through the resistor R1; the output end of the amplifier is electrically connected to the VREF interface through R2 and R1 in sequence; the output end of the amplifier is also electrically connected to the positive electrode of the comparator; the negative electrode of the comparator is electrically connected to the VREF end; the output end of the comparator is electrically connected to the input end of the system controller; the power supply interfaces of the amplifier, comparator, single-chip microcomputer, and Bluetooth device are all electrically connected to the VCC interface.

[0036] In this embodiment, VCC is used to power the amplifier, the comparator, the single-chip microcomputer and the Bluetooth, and VREF is used as a DC reference voltage of the amplifier and a threshold voltage of the comparator.

[0037] In this embodiment, the optical receiving circuit includes a capacitor C1, a resistor R1, a resistor R2, an amplifier and a comparator. The capacitor C1 is used to isolate the DC and couple the electrical signal generated by the solar cell. The resistors R3, R4 and the amplifier constitute a common-mode proportional amplifier for amplifying small signals. The comparator is used to convert the analog signal into a 0 / 1 binary signal.

[0038] In this embodiment, the negative electrode of the solar cell is connected to the common ground.

[0039] In a specific embodiment, the system controller is specifically a single-chip microcomputer; the TX pin of the single-chip microcomputer is electrically connected to the RX pin of the Bluetooth device, and the RX pin of the single-chip microcomputer is electrically connected to the TX pin of the Bluetooth device.

[0040] In this embodiment, the above-mentioned embodiment of the present invention uses solar cells to collect energy and detect light signals. The collected energy is managed by a power management chip and powers the remaining circuits. The collected excess energy is stored in a supercapacitor. This embodiment forms a simple optical receiver through a DC blocking capacitor, a common-mode amplifier, and a comparator to achieve optical communication functions. This embodiment uses solar cells to simultaneously achieve energy collection and optical communication, supports the configuration of Bluetooth through optical communication, and improves the configuration efficiency of Bluetooth. This embodiment enriches the communication means of the self-powered Bluetooth system, and the application scenarios of the system are broader.

[0041] Example 3

[0042] like Figure 3 As shown, a configuration method of a self-powered Bluetooth communication system supporting optical communication, based on the self-powered Bluetooth communication system supporting optical communication, includes the following specific steps:

[0043] Convert light energy into electrical energy through photoelectric detection devices and input the electrical energy into a power management module;

[0044] Power the Bluetooth device, system controller, and optical receiving circuit of the communication module through the power management module;

[0045] Transmitting an optical signal including configuration information to a photoelectric detection device; the photoelectric detection device converts the optical signal into an electrical signal, and transmits the electrical signal to a communication module;

[0046] The optical receiving circuit of the communication module sequentially filters, amplifies and compares the electrical signal; the system controller of the communication module sequentially demodulates and decodes the processed electrical signal, communicates with the Bluetooth device, and configures the Bluetooth device based on the configuration information.

[0047] In a specific embodiment, the photoelectric detection device collects light energy under illumination and converts it into electrical energy.

[0048] In a specific embodiment, the photoelectric detection device receives a light signal and converts the light signal into a voltage signal.

[0049] In one embodiment, the power management module stores the harvested excess energy in its supercapacitor.

[0050] In a specific embodiment, after the processed electrical signal is input into the system controller, the system controller is awakened and enters a working state; after the system controller decodes the received electrical signal and performs other processing, it communicates with Bluetooth and issues instructions to configure the Bluetooth device based on the configuration information, thereby configuring various parameters of the Bluetooth device; after the configuration is completed, the system controller re-enters the standby state, and the Bluetooth device communicates or broadcasts with the latest configuration parameters.

[0051] In this embodiment, the present invention provides a self-powered Bluetooth communication system supporting optical communication, which effectively solves the configuration problem of self-powered Bluetooth by combining wireless optical communication technology. Unlike the present invention, the existing self-powered Bluetooth system collects energy and powers Bluetooth through solar cells, and the solar cells only power Bluetooth and have a single function. On the other hand, in the existing Bluetooth configuration method, when a traditional radio frequency method is used to configure certain Bluetooth devices in a physical space where a large number of Bluetooth devices are deployed, it is necessary to first match the Bluetooth devices in the physical space with the Bluetooth identification codes obtained by scanning in the signal space one by one, and then the correct configuration can be performed, which is inefficient. In contrast, the Bluetooth system provided by the present invention introduces an optical receiving circuit and a system controller on the basis of the existing solar cell-powered self-powered Bluetooth beacon, and realizes the configuration of Bluetooth through optical communication within the line of sight. While ensuring safety, the configuration efficiency is improved. The photoelectric detection device in the proposed self-powered Bluetooth communication system supporting optical communication is not only limited to solar cells, but also includes other devices that can collect energy and detect signals, and has rich extensibility. In addition, optical communication can also be used as a supplement to Bluetooth radio frequency communication, enriching the communication means and functions of the self-powered Bluetooth system and expanding the application scenarios of the system.

[0052] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A self-powered Bluetooth communication system supporting optical communication, characterized in that: It includes a photoelectric detection device, a power management module, and a communication module; the photoelectric detection device is connected to the power management module and the communication module respectively; the power management module is also connected to the communication module; the communication module includes a Bluetooth device, a system controller, and an optical receiving circuit; the photoelectric detection device, the optical receiving circuit, the system controller, and the Bluetooth device are connected in sequence; the power management module is connected to the optical receiving circuit, the system controller, and the Bluetooth device respectively.

2. The self-powered Bluetooth communication system supporting optical communication according to claim 1, characterized in that: The photoelectric detection device includes at least one solar cell.

3. The self-powered Bluetooth communication system supporting optical communication according to claim 2, characterized in that: The power management module includes a power management chip and a supercapacitor C0; the input end of the power management chip is electrically connected to the positive pole of the solar cell; the output end of the power management chip includes a ground interface, a VCC interface, and a VREF interface, and the ground interface is grounded through the supercapacitor C0.

4. The self-powered Bluetooth communication system supporting optical communication according to claim 3, characterized in that: The optical receiving circuit specifically includes an amplifier and a comparator, a capacitor C1, a resistor R1, and a resistor R2; the positive electrode of the solar cell is electrically connected to the positive electrode of the amplifier through the capacitor C1; the negative electrode of the amplifier is electrically connected to the VREF interface through the resistor R1; the output end of the amplifier is electrically connected to the VREF interface through R2 and R1 in sequence; the output end of the amplifier is also electrically connected to the positive electrode of the comparator; the negative electrode of the comparator is electrically connected to the VREF end; the output end of the comparator is electrically connected to the input end of the system controller; the power supply interfaces of the amplifier, the comparator, the single-chip microcomputer, and the Bluetooth device are all electrically connected to the VCC interface.

5. The self-powered Bluetooth communication system supporting optical communication according to claim 4, characterized in that: The system controller is specifically a single chip microcomputer; the TX pin of the single chip microcomputer is electrically connected to the RX pin of the Bluetooth device, and the RX pin of the single chip microcomputer is electrically connected to the TX pin of the Bluetooth device.

6. A method for configuring a self-powered Bluetooth communication system supporting optical communication, characterized in that: The self-powered Bluetooth communication system supporting optical communication according to any one of claims 1 to 5 comprises the following specific steps: Convert light energy into electrical energy through photoelectric detection devices and input the electrical energy into a power management module; Power the Bluetooth device, system controller, and optical receiving circuit of the communication module through the power management module; Transmitting an optical signal including configuration information to a photoelectric detection device; the photoelectric detection device converts the optical signal into an electrical signal, and transmits the electrical signal to a communication module; The optical receiving circuit of the communication module sequentially filters, amplifies and compares the electrical signal; the system controller of the communication module sequentially demodulates and decodes the processed electrical signal, communicates with the Bluetooth device, and configures the Bluetooth device based on the configuration information.

7. The configuration method of the self-powered Bluetooth communication system supporting optical communication according to claim 6, characterized in that: The photoelectric detection device collects light energy under light conditions and converts it into electrical energy.

8. The configuration method of the self-powered Bluetooth communication system supporting optical communication according to claim 6, characterized in that: The photoelectric detection device receives the optical signal and converts the optical signal into a voltage signal.

9. The configuration method of the self-powered Bluetooth communication system supporting optical communication according to claim 6, characterized in that: The power management module stores the harvested excess energy in its supercapacitor.

10. The configuration method of the self-powered Bluetooth communication system supporting optical communication according to claim 6, characterized in that: After the processed electrical signal is input into the system controller, the system controller is awakened and enters the working state; after the system controller decodes the received electrical signal and performs other processing, it communicates with Bluetooth, and issues instructions to configure the Bluetooth device based on the configuration information, thereby configuring various parameters of the Bluetooth device; after the configuration is completed, the system controller re-enters the standby state, and the Bluetooth device communicates or broadcasts with the latest configuration parameters.

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