Simultaneous transmitting and receiving laser wireless energy information simultaneous transmission system

Abstract

The invention provides a simultaneous transmitting and receiving laser wireless energy information simultaneous transmission system which comprises a laser transmitting module and a laser receiving module. Wherein the laser receiving module comprises a vertical multi-junction battery unit and is used for receiving laser emitted by the laser emitting module, converting the laser into electric energy and signal level and outputting the electric energy and the signal level. The beneficial effects of the invention are that through the Schottky diode and circuit design, signal level can be effectively decoupled, synchronous transmission of energy and information is realized, and the integration level and reliability of the system are improved; through strict electrical characteristic matching rules, it is ensured that the system can operate stably under various working conditions, and the adaptability and reliability of the system are improved; various types of vertical multi-junction laser batteries are provided, proper battery types and junction numbers can be selected according to different application requirements, and the flexibility and applicability of the system are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless energy information synchronous transmission, and in particular relates to a simultaneous transmitting and receiving laser wireless energy information simultaneous transmission system. Background Art

[0002] Laser wireless energy information transmission technology uses laser as the medium for energy and information transmission, and utilizes the high directional transmission characteristics of laser in free space. Based on high-efficiency electrical-laser and laser-electric conversion, as well as laser signal modulation at the transmitting end and laser signal demodulation at the receiving end, it realizes cable-free long-distance energy signal transmission between the laser energy signal transmitting module and the laser energy signal receiving module. Laser wireless energy information transmission technology uses laser as the medium, and there is no electromagnetic interference problem.

[0003] Laser wireless energy information simultaneous transmission technology can be divided into four categories according to the working principle of its transmitting and receiving devices, including simultaneous transmission and reception, simultaneous transmission and different reception, different transmission and reception, and different transmission and reception. The main challenge currently faced by simultaneous transmission and reception laser wireless energy information simultaneous transmission technology is the inability to achieve stable output voltage, especially when using vertical multi-junction laser cells. Therefore, there is an urgent need for a simultaneous transmission and reception laser wireless energy information simultaneous transmission system that can achieve stable output voltage. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a system for simultaneously transmitting and receiving laser wireless energy information, which is particularly suitable for stabilizing the output voltage after receiving laser energy information.

[0005] The technical solution adopted by the present invention is: in the first aspect, the present invention provides a system for simultaneously transmitting and receiving laser wireless energy information, comprising:

[0006] Laser transmitting module and laser receiving module;

[0007] The laser receiving module includes a vertical multi-junction battery unit, which is used to receive the laser emitted by the laser transmitting module and convert the laser into electrical energy and signal level for output.

[0008] Furthermore, the laser emission module includes:

[0009] A power supply unit, used for providing electric energy to the pulse modulation unit and the laser unit;

[0010] A pulse modulation unit, used for controlling the switching state of the power supply unit providing electric energy to the laser unit;

[0011] A laser unit for emitting laser light.

[0012] Furthermore, the laser receiving module also includes:

[0013] The level signal conversion unit is used to convert the signal level into a communication signal level.

[0014] Further, the vertical multi-junction battery cell is configured to include:

[0015] A first node, a second node, a third node and a fourth node, the first node and the third node are connected, and the second node and the fourth node are connected;

[0016] a first group of terminals, a second group of terminals, a third group of terminals and a fourth group of terminals, the second group of terminals being connected to the second node, the third group of terminals being connected to the third node, and the fourth group of terminals being connected to the fourth node;

[0017] a vertical multi-junction laser cell connected between a first node and a second node;

[0018] a Schottky diode connected between the first set of terminals and the first node;

[0019] resistance;

[0020] A light emitting diode is connected in series with the resistor between the third node and the fourth node.

[0021] Furthermore, the electrical characteristics of the vertical multi-junction cell need to meet the following matching rules:

[0022] V S ≥V L +10V, V B ≥V L ×1.1,I SC ≥(I L +I LED )×1.1,I L ≥I LED ×20, R R =(V B -V LED ) / I LED ;

[0023] The open circuit voltage of the vertical multi-junction laser cell under the irradiation of the laser emission module is V B , the short-circuit current of the vertical multi-junction laser cell under the irradiation of the laser emission module is I SC , the load output voltage is V L , the load output current is I L , the voltage drop of the light emitting diode is V LED , the saturation current of the light-emitting diode is I LED The resistance of the resistor is R R The reverse withstand breakdown voltage of the Schottky diode is V s .

[0024] Further, the category of the vertical multi-junction laser cell is any one of a GaAs vertical multi-junction laser cell, a GaInAs vertical multi-junction laser cell and a GaInAsP vertical multi-junction laser cell.

[0025] Furthermore, when the category of the vertical multi-junction laser cell is a GaAs vertical multi-junction laser cell, the number of junctions of the cell is any one of 4 junctions to 10 junctions.

[0026] Furthermore, when the category of the vertical multi-junction laser cell is a GaInAs vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

[0027] Furthermore, when the category of the vertical multi-junction laser cell is a GaInAsP vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

[0028] The advantages and positive effects of the present invention are as follows: due to the adoption of the above technical scheme, through the Schottky diode and circuit design, the signal level can be effectively decoupled, the synchronous transmission of energy and information can be realized, and the integration and reliability of the system are improved; through strict electrical characteristic matching rules, it is ensured that the system can operate stably under various working conditions, and the adaptability and reliability of the system are improved; a variety of types of vertical multi-junction laser cells are provided, and the appropriate cell type and number of junctions can be selected according to different application requirements, thereby improving the flexibility and applicability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of an energy information simultaneous transmission system according to an embodiment of the present invention

[0030] Figure 2 Schematic diagram of a laser emission module according to an embodiment of the present invention

[0031] Figure 3 Schematic diagram of a laser receiving module according to an embodiment of the present invention

[0032] Figure 4 Schematic diagram of a vertical multi-junction battery cell according to an embodiment of the present invention DETAILED DESCRIPTION

[0033] The present disclosure is described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are described. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] like Figure 1 As shown, the present invention provides a system for simultaneously transmitting and receiving laser wireless energy information, comprising:

[0035] Laser emitting module 100 and laser receiving module 200;

[0036] The laser transmitting module 100 operates in a high-power mode in a binary amplitude shift keying modulation mode to emit a laser carrying energy and information. After receiving the laser, the laser receiving module 200 outputs the energy and information in the laser respectively.

[0037] The laser receiving module 200 includes a vertical multi-junction battery unit 210, which is used to receive the laser emitted by the laser emitting module and convert the laser into electrical energy and signal level for output.

[0038] The vertical multi-junction laser battery unit 210 directly leads to two outputs, one is a power supply output end, and the other is a signal output end, and is connected to the level signal conversion unit to transmit signals to the external signal receiving end host computer.

[0039] like Figure 2 As shown, in one embodiment, the laser emission module 100 includes:

[0040] A power supply unit 110, used to provide power to the pulse modulation unit 120 and the laser unit 130;

[0041] The power supply unit 110 provides a stable power supply to ensure that the laser unit 130 can continue to work.

[0042] The pulse modulation unit 120 is used to control the switching state of the power supply unit 110 providing power to the laser unit 130;

[0043] The pulse modulation unit 120 controls the output power and frequency of the laser unit 130 by adjusting the pulse width and frequency, thereby achieving precise control of the laser signal.

[0044] The laser unit 130 is used to emit laser light.

[0045] like Figure 3 As shown, in one embodiment, the laser receiving module 200 further includes:

[0046] The level signal conversion unit 220 is used to convert the signal level into a communication signal level.

[0047] Through amplification and filtering, the signal level output by the vertical multi-junction laser battery unit 210 is converted into the communication signal level required by the host computer to ensure the accuracy and reliability of the signal.

[0048] like Figure 4As shown, in one embodiment, the vertical multi-junction battery cell is configured to include:

[0049] The first node, the second node, the third node and the fourth node, the first node and the third node are connected, the second node and the fourth node are connected; the first group of terminals, the second group of terminals, the third group of terminals and the fourth group of terminals, the second group of terminals are connected to the second node, the third group of terminals are connected to the third node, and the fourth group of terminals are connected to the fourth node; the vertical multi-junction laser cell is connected between the first node and the second node; the Schottky diode is connected between the first group of terminals and the first node; the resistor; the light-emitting diode is connected in series with the resistor between the third node and the fourth node. Through the Schottky diode and circuit design, the signal level can be effectively decoupled, the synchronous transmission of energy and information can be achieved, and the integration and reliability of the system are improved.

[0050] In one embodiment, the electrical characteristics of the vertical multi-junction battery cell need to satisfy the following matching rules:

[0051] V S ≥V L +10V, V B ≥V L ×1.1,I SC ≥(I L +I LED )×1.1,I L ≥I LED ×20, R R =(V B -V LED ) / I LED ;

[0052] The open circuit voltage of the vertical multi-junction laser cell under the irradiation of the laser emission module is V B , the short-circuit current of the vertical multi-junction laser cell under the irradiation of the laser emission module is I SC , the load output voltage is V L , the load output current is I L , the voltage drop of the light emitting diode is V LED , the saturation current of the light-emitting diode is I LED The resistance of the resistor is R R The reverse withstand breakdown voltage of the Schottky diode is V s .

[0053] V S ≥V L +10V, ensure that the reverse withstand breakdown voltage of the Schottky diode is greater than the load voltage plus 10 volts to prevent breakdown; V B ≥V L×1.1, ensure that the open circuit voltage of the laser battery is at least 1.1 times the load voltage, providing sufficient voltage margin; I SC ≥(I L +I LED )×1.1, ensure that the short-circuit current of the laser battery is at least 1.1 times the sum of the load current and the light-emitting diode current, providing sufficient current margin; I L ≥I LED ×20, ensure that the load current is much larger than the LED current, and reduce the impact of the LED on the system; R R =(V B -V LED ) / I LED , calculate the resistance value of the series resistor to ensure that the light-emitting diode obtains appropriate current and prevents overcurrent damage. Through strict electrical characteristics matching rules, the system can be ensured to operate stably under various working conditions, improving the adaptability and reliability of the system.

[0054] In order to enable those skilled in the art to further understand the method of the present invention, the technical solution of the present invention will be explained in detail below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0055] Example 1

[0056] The laser emission module consists of a 15V / 20A DC power supply, a pulse width modulation power controller, and a 25W optical power wavelength 808nm laser module; the laser energy information receiving module consists of a vertical multi-junction laser battery unit and a level signal conversion unit. The vertical multi-junction laser battery module consists of a vertical six-junction GaAs laser battery, a 112 ohm resistor, a Schottky diode (SS540) and a light-emitting diode connected in a series-parallel circuit mode. After operation, the power supply output voltage is 5.8±0.2V, the signal level is 6.1±0.05V, and the signal output can work normally.

[0057] Example 2

[0058] The laser transmitting module is composed of a 15V / 20A DC power supply, a pulse width modulation power controller, and a laser module with an optical power of 25W and a wavelength of 808nm; the laser receiving module is composed of a vertical multi-junction laser battery unit and a level signal conversion unit. The vertical multi-junction laser battery unit is composed of a vertical six-junction GaAs laser battery, a 20-ohm resistor, a Schottky diode (SS540), and a light-emitting diode connected in a series-parallel circuit mode. After operation, the power supply output voltage is 1.1±0.5V, the signal level is 1.4±0.2V, and the signal output cannot work normally.

[0059] Example 3

[0060] The laser transmitting module is composed of a 15V / 20A DC power supply, a pulse width modulation power supply controller, and a 25W optical power wavelength 808nm laser module; the laser receiving module is composed of a vertical multi-junction laser battery unit and a level signal conversion unit, and does not use a special base diode or a light-emitting diode. After operation, the power supply output voltage is 0.5~7V and the voltage cannot be stabilized, the signal level is 0.5~7V and the voltage cannot be stabilized, and the signal output cannot work normally.

[0061] Based on the above comparison, it can be seen that when the laser energy information receiving module does not introduce light-emitting diodes and resistors, the output voltage cannot be stable. When the electrical characteristics of each device in the vertical multi-junction laser battery unit are not selected according to the matching rules, the output voltage cannot meet the output requirements.

[0062] In one embodiment, the type of the vertical multi-junction laser cell is any one of a GaAs vertical multi-junction laser cell, a GaInAs vertical multi-junction laser cell, and a GaInAsP vertical multi-junction laser cell.

[0063] In one embodiment, when the type of the vertical multi-junction laser cell is a GaAs vertical multi-junction laser cell, the number of junctions of the cell is any one of 4 junctions to 10 junctions.

[0064] In one embodiment, when the type of the vertical multi-junction laser cell is a GaInAs vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

[0065] In one embodiment, when the type of the vertical multi-junction laser cell is a GaInAsP vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

[0066] A variety of vertical multi-junction laser cells are provided, and the appropriate cell type and number of junctions can be selected according to different application requirements, which improves the flexibility and applicability of the system.

[0067] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A system for simultaneously transmitting and receiving laser wireless energy information, characterized in that: include: Laser transmitting module and laser receiving module; The laser receiving module includes a vertical multi-junction battery unit, which is used to receive the laser emitted by the laser transmitting module and convert the laser into electrical energy and signal level for output.

2. The energy information simultaneous transmission system according to claim 1, characterized in that: The laser emission module includes: A power supply unit, used for providing electric energy to the pulse modulation unit and the laser unit; A pulse modulation unit, used for controlling the switching state of the power supply unit providing electric energy to the laser unit; A laser unit for emitting laser light.

3. The energy information simultaneous transmission system according to claim 1, characterized in that: The laser receiving module also includes: The level signal conversion unit is used to convert the signal level into a communication signal level.

4. The energy information simultaneous transmission system according to claim 1, characterized in that: The vertical multi-junction cell is configured to include: A first node, a second node, a third node and a fourth node, the first node and the third node are connected, and the second node and the fourth node are connected; a first group of terminals, a second group of terminals, a third group of terminals and a fourth group of terminals, the second group of terminals being connected to the second node, the third group of terminals being connected to the third node, and the fourth group of terminals being connected to the fourth node; a vertical multi-junction laser cell connected between a first node and a second node; a Schottky diode connected between the first set of terminals and the first node; resistance; A light emitting diode is connected in series with the resistor between the third node and the fourth node.

5. The energy information simultaneous transmission system according to claim 4, characterized in that: The electrical characteristics of vertical multi-junction cells need to meet the following matching rules: V S ≥V L +10V,V B ≥V L ×1.1,I SC ≥(I L +I LED )×1.1,I L ≥I LED ×20,R R =(V B -V LED ) / I LED ; in The open circuit voltage of the vertical multi-junction laser cell under the irradiation of the laser emission module is V B , the short-circuit current of the vertical multi-junction laser cell under the irradiation of the laser emission module is I SC , the load output voltage is V L , the load output current is I L , the voltage drop of the light emitting diode is V LED , the saturation current of the light-emitting diode is I LED The resistance of the resistor is R R The reverse withstand breakdown voltage of the Schottky diode is V s .

6. The energy information simultaneous transmission system according to claim 1, characterized in that: The category of the vertical multi-junction laser cell is any one of a GaAs vertical multi-junction laser cell, a GaInAs vertical multi-junction laser cell, and a GaInAsP vertical multi-junction laser cell.

7. The energy information simultaneous transmission system according to claim 6, characterized in that: When the category of the vertical multi-junction laser cell is a GaAs vertical multi-junction laser cell, the number of junctions of the cell can be any one of 4 junctions to 10 junctions.

8. The energy information simultaneous transmission system according to claim 6, characterized in that: When the category of the vertical multi-junction laser cell is a GaInAs vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

9. The energy information simultaneous transmission system according to claim 6, characterized in that: When the category of the vertical multi-junction laser cell is a GaInAsP vertical multi-junction laser cell, the number of junctions of the cell is any one of 8 junctions to 20 junctions.

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