Access optical power detection device and optical communication equipment

Abstract

The invention provides an access light power detection device and optical communication equipment, and relates to the technical field of photoelectricity, and the access light power detection device comprises a reflector, a driving assembly, a power detection assembly and a processing assembly. Wherein the reflecting mirror is positioned on an incident light path of incident light and is used for receiving the incident light and reflecting the incident light to the power detection assembly; the power detection assembly is used for detecting power information of incident light; the processing assembly is connected with the power detection assembly and the driving assembly, and the processing assembly is used for controlling the driving assembly to adjust the position and / or posture of the reflector under the condition that the power of the incident light is within a preset power range, so that the reflector is located outside an incident light path of the incident light. By adopting the access optical power detection device, the problem that abnormal incident light directly enters the laser in the optical communication equipment to cause damage to the laser can be effectively avoided, and normal optical communication can be realized under the condition of ensuring the safety of the equipment.

Description

Technical Field

[0001] The present application relates to the field of optoelectronic technology, and in particular to an access light power detection device and optical communication equipment. Background Art

[0002] In the field of optical communications, optical communication equipment plays a vital role, and lasers in optical communication equipment are indispensable.

[0003] However, the parameters of the incident light are often unknown. When the incident light has a high optical power, the laser (i.e., the optical transceiver) in the optical communication equipment is often easily affected by the incident light and damaged, causing abnormalities in the entire optical network link. Summary of the Invention

[0004] In view of this, the present application proposes an access light optical power detection device and an optical communication device.

[0005] In a first aspect, the present application provides an access light optical power detection device, comprising: a reflector, a driving component, a power detection component, and a processing component; wherein,

[0006] The reflector is located on the incident light path of the incident light, and is used to receive the incident light and reflect the incident light to the power detection component;

[0007] The power detection component is used to detect the power information of the incident light;

[0008] The processing component is connected to the power detection component and the driving component respectively. The processing component is used to control the driving component to adjust the position and / or posture of the reflector when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light.

[0009] In one embodiment, the reflector is further provided with a magnet; the driving assembly includes: an electromagnet, a first guide rail, an elastic element and a first power supply;

[0010] The reflector is located on the first guide rail and is connected to one side of the first guide rail via the elastic element;

[0011] The processing component is used to control the first power supply to supply power to the electromagnet when the power of the incident light is within a preset power range;

[0012] When the electromagnet is not energized, the elastic element is in a relaxed state and the reflector is located on the incident light path of the incident light; when the electromagnet is energized, the electromagnet attracts the magnet on the reflector to make the reflector move along the first guide rail and deviate from the incident light path of the incident light.

[0013] In one embodiment, the processing component includes a processor and a driving circuit;

[0014] The driving circuit includes a first filtering unit, a first current limiting unit, a first switching unit, and a second switching unit. The first switching unit is located on the power supply line between the first power supply and the electromagnet, and the second switching unit is located between the control end of the first switching unit and a common ground. The first filtering unit is used to filter the first power signal output by the first power supply, and the first current limiting unit is used to limit the current of the first control signal input to the second switching unit.

[0015] The processor is configured to output the first control signal to the control end of the second switch unit.

[0016] In one embodiment, the first switch unit is a PMOS transistor, the second switch unit is an NPN transistor, the collector of the second switch unit is connected to the gate of the first switch unit, and the emitter of the second switch unit is grounded;

[0017] The processor is configured to send a high-level signal to the base of the second switch unit when the power of the incident light is within a preset power range.

[0018] In one embodiment, the drive assembly includes: a first motor, a transmission mechanism, and a second guide rail;

[0019] The reflector is located on the second guide rail;

[0020] The first motor is connected to the reflector via the transmission mechanism, and the first motor is used to drive the reflector to move along the second guide rail;

[0021] The processing component is connected to the first motor, and is used to control the first motor to drive the reflector to move along the second guide rail to a light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; and control the first motor to drive the reflector to move along the second guide rail to a light path disconnection position when the power of the incident light is outside the preset power range, so that the reflector is located on the incident light path of the incident light.

[0022] In one embodiment, the driving assembly includes: a second motor, a push rod, and a bracket;

[0023] The reflector is rotatably connected to the bracket via a rotating shaft;

[0024] The second motor is connected to the reflector via the push rod, and the second motor is used to drive the reflector to rotate around the rotation axis;

[0025] The processing component is connected to the second motor, and the processing component is used to control the second motor to drive the reflector to rotate to the light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; when the power of the incident light is outside the preset power range, control the second motor to drive the reflector to rotate to the light path disconnection position when the incident light is outside the preset power range, so that the reflector is located on the incident light path of the incident light.

[0026] In a second aspect, the present application further provides an optical communication device, comprising:

[0027] The access light optical power detection device as described in the first aspect;

[0028] a laser, the laser being located on an incident optical path of the incident light, and being configured to receive the incident light when the reflector of the access light optical power detection device is located outside the incident optical path of the incident light, and to generate incident light data based on the incident light;

[0029] A processing chip is connected to the laser and is used to determine optical communication information according to the incident light data.

[0030] In one embodiment, the optical communication device further comprises: a second power supply and a power supply control circuit;

[0031] The second power supply is connected to the laser via the power supply control circuit;

[0032] The processing chip is connected to the power supply control circuit and the processing component respectively. The processing chip is used to control the power supply control circuit to be in a power-on state when the power of the incident light is within a preset power range, so that the second power supply supplies power to the laser; and to control the power supply control circuit to be in a power-off state when the power of the incident light is outside the preset power range, so as to disconnect the power supply circuit between the second power supply and the laser.

[0033] In one embodiment, the power supply control circuit includes: a second filtering unit, a second current limiting unit, a third switching unit, and a fourth switching unit, wherein the third switching unit is located on the power supply line between the second power supply and the laser, and the fourth switching unit is located between the control end of the third switching unit and a common ground. The second filtering unit is used to filter the second power supply signal output by the second power supply, and the current limiting unit is used to limit the current of the second control signal input to the fourth switching unit.

[0034] The processing chip is used to output the second control signal to the control end of the fourth switch unit.

[0035] In one embodiment, the optical communication device further includes: an alarm device, the alarm device is connected to the processing chip, and the processing chip is further configured to control the alarm device to sound an alarm when the power of the incident light is outside a preset power range.

[0036] The access light optical power detection device of the present application has the following beneficial effects compared with the related art:

[0037] 1. By adding an access light optical power detection device to the incident light path between the laser in the optical communication equipment and the incident light, the incident light is blocked and detected by the access light optical power detection device to avoid the problem of incident light directly entering the laser in the optical communication equipment and causing damage to the laser, thereby effectively avoiding the abnormality of the entire optical network link caused by laser damage.

[0038] 2. By placing a reflector on the incident light path of the incident light, the reflector is used as a light blocking device and a light direction adjusting device, which can block the incident light from directly entering the laser in the optical communication equipment, thereby preventing the incident light from directly entering the laser and causing damage to the laser. At the same time, the incident light is reflected to the power detection component through the reflector, so that the power detection component can detect the power of the incident light and generate a processing component. When the power of the incident light is within a normal range, the processing component can control the drive component to adjust the position and / or posture of the reflector so that the reflector no longer blocks the incident light, and the incident light can enter the laser in the optical communication equipment, thereby realizing optical communication. The use of the above-mentioned access light power detection device can effectively avoid the problem of abnormal incident light directly entering the laser in the optical communication equipment and causing damage to the laser. At the same time, when the incident light power is normal, the incident light is allowed to enter the laser in the optical communication equipment, thereby realizing normal optical communication while ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a structural diagram of an access light optical power detection device in an embodiment of the present application;

[0041] Figure 2This is a structural diagram of an access light optical power detection device in another embodiment of the present application;

[0042] Figure 3 This is a schematic diagram of the structure of a driving circuit in one embodiment of the present application;

[0043] Figure 4 This is a structural diagram of an access light optical power detection device in another embodiment of the present application;

[0044] Figure 5 This is a structural diagram of an optical communication device in one embodiment of the present application;

[0045] Figure 6 This is a schematic structural diagram of an optical communication device in another embodiment of the present application;

[0046] Figure 7 Schematic diagram of the power supply control circuit in one embodiment of the present application.

[0047] Description of reference numerals:

[0048] 10-Access optical power detection device, 11-Reflector, 12-Drive component, 121-Electromagnet, 122-First guide rail, 123-Elastic element, 124-First power supply, 125-First motor, 126-Transmission mechanism, 127-Second guide rail, 13-Power detection component, 14-Processing component, 141-Processor, 142-Drive circuit, 1421-First filter unit, 1422-First current limiting unit, 21-Laser, 22-Processing chip, 23-Power supply control circuit, 231-Second filter unit, 232-Second current limiting unit, 24-Second power supply. DETAILED DESCRIPTION

[0049] The following will be combined with the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] In some embodiments, as Figure 1 As shown, the present application provides an access light optical power detection device, including: a reflector, a driving component 12, a power detection component 13 and a processing component 14.

[0051] The reflector is located in the incident light path, receiving the incident light and reflecting it to the power detection component 13. The power detection component 13 is configured to detect the power information of the incident light. The processing component 14 is connected to the power detection component 13 and the driving component 12. When the power of the incident light is within a preset power range, the processing component 14 controls the driving component 12 to adjust the position and / or posture of the reflector so that the reflector is located outside the incident light path.

[0052] Incident light is light entering the optical communication device, and can be light of any wavelength or power, such as natural light. The incident light can be transmitted to the reflector via an optical fiber, which can be connected to the corresponding device using a flange.

[0053] It should be noted that, along the incident light path of the incident light, an access optical power detection device is located before the laser 21 (i.e., the optical transceiver device) in the optical communication equipment, and is used to control whether the incident light enters the laser 21. By blocking and detecting the incident light through the access optical power detection device, the incident light is prevented from directly entering the laser 21 in the optical communication equipment, causing damage to the laser 21, thereby effectively preventing damage to the laser 21 and causing abnormalities in the entire optical network link. It should also be noted that, when the power of the incident light is outside the preset power range, the processing component 14 controls the position and / or posture of the reflector to remain unchanged, so that the reflector is located on the incident light path of the incident light, blocking the incident light from entering the laser 21 in the optical communication equipment.

[0054] It can be understood that by placing the reflector on the incident light path, the reflector can be used as a light blocking device and a light direction adjusting device to block the incident light from directly entering the laser 21 in the optical communication device, thereby preventing damage to the laser 21 in the optical communication device. After the reflector reflects the incident light to the power detection component 13, the power detection component 13 can detect the power information of the incident light and send the detected power information to the processing component 14. When the processing component 14 determines that the power of the incident light is within the preset power range, it can be determined that the power of the incident light is within the normal range, and the laser 21 in the optical communication device can directly receive the incident light. Therefore, the processing component 14 adjusts the position and / or posture of the reflector by controlling the driving component 12 so that the reflector is located outside the incident light path of the incident light, so that the reflector no longer blocks the incident light, and the incident light can be incident on the optical communication device, thereby achieving optical communication while ensuring the safety of the device.

[0055] The above-mentioned access light optical power detection device, by placing a reflector on the incident light path of the incident light, uses the reflector as a light blocking device and a light direction adjustment device, which can block the incident light from directly entering the laser 21 in the optical communication device and causing damage to the laser 21. At the same time, the incident light is reflected to the power detection component 13 through the reflector, so that the power detection component 13 can detect the power of the incident light and generate a processing component 14. When the power of the incident light is within a normal range, the processing component 14 can control the driving component 12 to adjust the position and / or posture of the reflector so that the reflector no longer blocks the incident light, and the incident light can enter the laser 21 in the optical communication device, thereby achieving optical communication. The use of the laser 21 in the above-mentioned optical communication device can effectively prevent abnormal incident light from directly entering the laser 21 in the optical communication device and causing damage to the laser 21. At the same time, when the incident light power is normal, the incident light is allowed to enter the laser 21 in the optical communication device, thereby achieving normal optical communication while ensuring the safety of the equipment.

[0056] In some embodiments, as Figure 2 As shown, a magnet is also provided on the reflector; the driving assembly 12 includes: an electromagnet 121 , a first guide rail 122 , an elastic element 123 and a first power supply 124 .

[0057] The reflector is located on the first guide rail 122 and is connected to one side of the first guide rail 122 via the elastic element 123. The processing component 14 is used to control the first power supply 124 to supply power to the electromagnet 121 when the power of the incident light is within a preset power range.

[0058] When the electromagnet 121 is not energized, the elastic element 123 is relaxed, and the reflector is located in the incident light path. When the electromagnet 121 is energized, the electromagnet 121 attracts the magnet on the reflector, causing the reflector to move along the first guide rail 122 and out of the incident light path. The elastic element 123 may be a spring, and a magnet may be mounted on the left side of the reflector 11. The right side of the reflector 11 is connected to the right side of the guide rail via a spring.

[0059] It is understood that if a magnet is provided on the reflector, then when the electromagnet 121 is energized, the electromagnet 121 will attract the magnet, causing the reflector to move along the first guide rail 122 in a direction approaching the electromagnet 121, thereby driving the reflector to move outside the incident light path, so that the reflector no longer blocks the incident light, and the incident light can enter the optical communication device. On this basis, when the processing component 14 determines that the incident light power is within a preset power range, the processing component 14 will control the first power supply 124 in the driving component 12 to power the electromagnet 121, and the electromagnet 121 will attract the magnet on the reflector, causing the reflector to move along the first guide rail 122 and out of the incident light path of the incident light. As a result, the reflector no longer blocks the incident light, and the incident light can enter the optical communication device, thereby achieving optical communication while ensuring the safety of the device. When the processing component 14 determines that the incident light power is outside the preset power range, the processing component 14 can control the first power supply 124 not to supply power to the electromagnet 121. Under the elastic force of the elastic element 123, the reflector will return to its original position or remain in its original position, blocking the abnormal incident light from entering the laser 21 of the optical communication equipment, thereby avoiding damage to the laser 21.

[0060] In some embodiments, as Figure 2 Shown and Figure 3 As shown, the processing component 14 includes a processor 141 and a driving circuit 142 .

[0061] The drive circuit 142 includes a first filtering unit 1421, a first current limiting unit 1422, a first switch unit S1 and a second switch unit Q1. The first switch unit S1 is located on the power supply line between the first power supply 124 and the electromagnet 121. The second switch unit Q1 is located between the control end of the first switch unit S1 and the common ground. The first filtering unit 1421 is used to filter the first power supply signal output by the first power supply 124. The first current limiting unit 1422 is used to limit the current of the first control signal control1 input to the second switch unit Q1.

[0062] The processor 141 is configured to output a first control signal control1 to a control terminal of the second switch unit Q1 .

[0063] It can be understood that the first switch unit S1 is located on the power supply line between the first power supply 124 and the electromagnet 121. When the first switch unit S1 is turned on, the first power supply 124 is connected to the electromagnet 121, and the first power supply 124 can supply power to the electromagnet 121. The electromagnet 121 can attract the magnet, prompting the reflector to move along the first guide rail 122 in a direction close to the electromagnet 121, thereby driving the reflector to move outside the incident light path of the incident light, so that the reflector no longer blocks the incident light, and the incident light can be incident on the optical communication device. When the first switch unit S1 is turned off, the first power supply 124 is disconnected from the electromagnet 121, and the first power supply 124 cuts off the power supply to the electromagnet 121. The electromagnet 121 will not attract the magnet. Under the elastic force of the elastic element 123, the reflector will return to its original position or remain in its original position, blocking abnormal incident light from entering the laser 21 of the optical communication device, thereby preventing damage to the laser 21.

[0064] On this basis, the second switch unit Q1 is located between the control terminal of the first switch unit S1 and the common ground. The processor 141 can then control the conduction state of the second switch unit Q1 by outputting a first control signal control1 to the control terminal of the second switch unit Q1. The conduction state of the second switch unit Q1 controls whether the control terminal of the first switch unit S1 is grounded, thereby affecting the on / off state of the first switch unit S1. Therefore, the processor 141 can control the on / off state of the first switch unit S1 by controlling the on / off state of the second switch unit Q1. When the incident light power is determined to be normal, the processor 141 controls the first power supply 124 to supply power to the electromagnet 121. When the incident light power is determined to be abnormal, the processor 141 controls the first power supply 124 to cut off the power supply to the electromagnet 121.

[0065] In some embodiments, as Figure 3 As shown, the first switch unit S1 is a PMOS transistor, the second switch unit Q1 is an NPN transistor, the collector of the second switch unit Q1 is connected to the gate of the first switch unit S1, and the emitter of the second switch unit Q1 is grounded.

[0066] The processor 141 is configured to send a high level signal to the base of the second switch unit Q1 when the power of the incident light is within a preset power range.

[0067] It can be understood that when the power of the incident light is within a preset power range, the processor 141 sends a high-level signal to the base of the second switch unit Q1. Since the second switch unit Q1 is an NPN transistor, the second switch unit Q1 is turned on in response to the high-level signal. When the second switch unit Q1 is turned on, the gate of the first switch unit S1 is grounded. Since the first switch unit S1 is a PMOS transistor, the first switch unit S1 is also turned on, thereby connecting the first power supply 124 to the electromagnet 121, and the first power supply 124 can power the electromagnet 121. When the first control signal control1 is a low-level signal, the second switch unit Q1 is turned off in response to the low-level signal. When the second switch unit Q1 is turned off, the gate of the first switch unit S1 is not grounded, the first switch unit S1 is turned off, and the first power supply 124 is disconnected from the electromagnet 121, and the first power supply 124 is unable to power the electromagnet 121.

[0068] In one example, if Figure 3 As shown, the first filtering unit 1421 may include a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a first resistor R1. The first end of the first capacitor C1 may be connected to the output of the first power supply 124 and the source of the first switch unit S1, and the second end of the first capacitor C1 may be grounded. The first end of the second capacitor C2 may be connected to the output of the first power supply 124 and the source of the first switch unit S1, and the second end of the second capacitor C2 may be connected to the gate of the first switch unit S1. The first end of the third capacitor C3 may be connected to the drain of the first switch unit S1, and the second end of the third capacitor C3 may be grounded. The first end of the fourth capacitor C4 may be connected to the drain of the first switch unit S1, and the second end of the fourth capacitor C4 may be grounded. The first end of the first resistor R1 may be connected to the output of the first power supply 124 and the source of the first switch unit S1, and the second end of the first resistor R1 may be connected to the gate of the first switch unit S1. The first current limiting unit 1422 includes a second resistor R2 and a third resistor R3. A first end of the second resistor R2 is connected to the output terminal of the processor 141, and a second end of the second resistor R2 is connected to the base of the second switch unit Q1. A first end of the third resistor R3 is connected to the base of the second switch unit Q1, and a second end of the third resistor R3 is connected to the emitter of the second switch unit Q1.

[0069] In some embodiments, as Figure 4 As shown, the driving assembly 12 includes: a first motor 125 , a transmission mechanism 126 and a second guide rail 127 .

[0070] The reflector is located on the second guide rail 127 ; the first motor 125 is connected to the reflector via a transmission mechanism 126 , and the first motor 125 is used to drive the reflector to move along the second guide rail 127 .

[0071] The processing component 14 is connected to the first motor 125. The processing component 14 is used to control the first motor 125 to drive the reflector to move along the second guide rail 127 to the light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; when the power of the incident light is outside the preset power range, the processing component 14 is used to control the first motor 125 to drive the reflector to move along the second guide rail 127 to the light path disconnection position, so that the reflector is located on the incident light path of the incident light.

[0072] The specific form of the transmission mechanism 126 can be selected according to needs, for example, it can be a transmission structure such as a belt, gears, etc.

[0073] As will be understood, the reflector is mounted on the second guide rail 127, and the first motor 125 is connected to the reflector via a transmission mechanism 126. Its function is to drive the reflector along the second guide rail 127. The processing component 14 is connected to the first motor 125 and controls the operation of the first motor 125 based on the relationship between the incident light power and a preset power range. When the incident light power is within the preset power range, the processing component 14 controls the first motor 125 to drive the reflector along the second guide rail 127 to a light path conducting position. At this point, the reflector is outside the incident light path, and the incident light path is in a conducting state, allowing incident light of normal power to enter the laser 21 of the optical communication device, thereby completing optical communication. When the power of the incident light is outside the preset power range, the processing component 14 will control the first motor 125 to drive the reflector to move along the second guide rail 127 to the optical path disconnection position, and the reflector returns to the incident light path of the incident light, thereby disconnecting the optical path of the incident light and blocking the abnormal incident light from entering the laser 21 of the optical communication equipment, thereby avoiding damage to the laser 21.

[0074] In one embodiment, the driving assembly 12 includes a second motor, a push rod, and a bracket.

[0075] The reflector is rotatably connected to the bracket via a rotating shaft. The second motor is connected to the reflector via a push rod, and the second motor is used to drive the reflector to rotate around the rotating shaft.

[0076] The processing component 14 is connected to the second motor. The processing component 14 is used to control the second motor to drive the reflector to rotate to the light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; when the power of the incident light is outside the preset power range, the processing component 14 is used to control the second motor to drive the reflector to rotate to the light path disconnection position so that the reflector is located on the incident light path of the incident light.

[0077] It can be understood that, similarly, the reflector is rotatably connected to the bracket via a rotating shaft, and the second motor is connected to the reflector via a push rod, and can drive the reflector to rotate around the rotating shaft. The processing component 14 is connected to the second motor, and controls the second motor based on the comparison result between the incident light power and the preset power range. When the incident light power is within the preset range, the processing component 14 controls the second motor to drive the reflector to rotate to the light path conduction position, so that the reflector deviates from the light path of the incident light, and achieves light path conduction. When the incident light power exceeds the preset range, the processing component 14 controls the second motor to drive the reflector to rotate to the light path disconnection position, so that the reflector returns to the light path of the incident light, and achieves light path disconnection. This design achieves flexible control of the light path through the rotation of the reflector, has a compact structure and fast response, and is suitable for application scenarios that require rapid switching of the light path state.

[0078] In some embodiments, as Figure 5 As shown, the present application also provides an optical communication device, which includes: an access light optical power detection device 10 as any of the above solutions, a laser 21 and a processing chip 22. Among them, the laser 21 is used as a laser 21. The processing chip 22 can be a system on chip (SOC).

[0079] The laser 21 is located on the incident light path of the incident light, and is used to receive the incident light when the reflector of the access light power detection device 10 is located outside the incident light path of the incident light, and generate incident light data according to the incident light.

[0080] The processing chip 22 is connected to the laser 21 and is used to determine the optical communication information according to the incident light data.

[0081] The above-mentioned optical communication equipment sets the access optical power detection device 10 before the laser 21 in the optical communication equipment along the incident optical path of the incident light. The access optical power detection device 10 pre-detects the power of the incident light and controls whether the incident light enters the laser 21 according to the power of the incident light. Thus, the access optical power detection device 10 blocks and detects the incident light, thereby preventing the incident light from directly entering the laser 21 in the optical communication equipment and causing damage to the laser 21. This can effectively prevent damage to the laser 21 and abnormality of the entire optical network link. When the power of the incident light is within a preset power range, the position and / or posture of the reflector is adjusted so that the reflector is located outside the incident optical path of the incident light, allowing the incident light to enter the laser 21. This allows the laser 21 to generate incident light data based on the incident light and send it to the processing chip 22. The processing chip 22 determines optical communication information based on the incident light data, thereby realizing optical communication.

[0082] In some embodiments, as Figure 6 As shown, the optical communication device further includes: a second power supply 24 and a power supply control circuit 23 .

[0083] The second power supply 24 is connected to the laser 21 via the power supply control circuit 23 .

[0084] The processing chip 22 is connected to the power supply control circuit 23 and the processing component 14 respectively. The processing chip 22 is used to control the power supply control circuit 23 to be in a power-on state when the power of the incident light is within a preset power range, so that the second power supply 24 supplies power to the laser 21; when the power of the incident light is outside the preset power range, the power supply control circuit 23 is controlled to be in a power-off state to disconnect the power supply circuit between the second power supply 24 and the laser 21.

[0085] It can be understood that the second power supply 24 is connected to the laser 21 through the power supply control circuit 23, forming a power supply loop. The processing chip 22 is connected to the power supply control circuit 23 and the processing component 14 respectively, and dynamically controls the power supply status of the laser 21 based on the incident light power information provided by the processing component 14. When the incident light power is within a preset range, the processing chip 22 sends a conduction signal to the power supply control circuit 23, enabling the second power supply 24 to power the laser 21, and the laser 21 operates normally. When the incident light power exceeds the preset range, the processing chip 22 sends a disconnection signal, cutting off the power supply loop, and the laser 21 stops operating. This design implements intelligent control of the power supply of the laser 21, which can not only automatically adjust the operating state according to the incident light power, but also promptly cut off the power to protect the equipment in the event of power anomalies, thereby improving the safety and stability of the system. By working in conjunction with the processing component 14, the processing chip 22 forms a complete closed-loop control system, ensuring that the laser 21 always operates within a safe and effective power range.

[0086] In some embodiments, as Figure 7 As shown, the power supply control circuit 23 includes: a second filtering unit 231, a second current limiting unit 232, a third switch unit S2 and a fourth switch unit Q2. The third switch unit S2 is located on the power supply line between the second power supply 24 and the laser 21. The fourth switch unit Q2 is located between the control end of the third switch unit S2 and the common ground. The second filtering unit 231 is used to filter the second power supply signal output by the second power supply 24, and the current limiting unit is used to limit the current of the second control signal control2 input to the fourth switch unit Q2.

[0087] The processing chip 22 is configured to output a second control signal control2 to the control terminal of the fourth switch unit Q2 .

[0088] It can be understood that the third switch unit S2 is located in the power supply circuit between the second power supply 24 and the laser 21. When the third switch unit S2 is turned on, the second power supply 24 is connected to the laser 21, and the second power supply 24 can power the laser 21. The laser 21 can be in an operating state and can transmit and receive laser light to achieve optical communication. When the third switch unit S2 is turned off, the second power supply 24 is disconnected from the laser 21, and the second power supply 24 stops supplying power to the laser 21. The laser 21 will not be damaged by receiving abnormal incident light, thereby further improving the safety of the laser 21.

[0089] On this basis, the fourth switch unit Q2 is located between the control terminal of the third switch unit S2 and the common ground. The processing chip 22 can then control the conduction state of the fourth switch unit Q2 by outputting a second control signal control2 to the control terminal of the fourth switch unit Q2. The conduction state of the fourth switch unit Q2 controls whether the control terminal of the third switch unit S2 is grounded, thereby affecting the on / off state of the third switch unit S2. Therefore, the processing chip 22 can control the on / off state of the third switch unit S2 by controlling the on / off state of the fourth switch unit Q2. When the incident light power is determined to be normal, the second power supply 24 is controlled to power the laser 21. When the incident light power is determined to be abnormal, the second power supply 24 is controlled to disconnect the power supply to the laser 21.

[0090] In some embodiments, as Figure 7 As shown, the third switch unit S2 is a PMOS transistor, the fourth switch unit Q2 is an NPN transistor, the collector of the fourth switch unit Q2 is connected to the gate of the third switch unit S2, and the emitter of the fourth switch unit Q2 is grounded.

[0091] The processing chip 22 is configured to send a high level signal to the base of the fourth switch unit Q2 when the power of the incident light is within a preset power range.

[0092] It can be understood that when the power of the incident light is within a preset power range, the processing chip 22 sends a high-level signal to the base of the fourth switch unit Q2. Since the fourth switch unit Q2 is an NPN transistor, the fourth switch unit Q2 is turned on in response to the high-level signal. When the fourth switch unit Q2 is turned on, the gate of the third switch unit S2 is grounded. Since the third switch unit S2 is a PMOS transistor, the third switch unit S2 is also turned on, thereby connecting the second power supply 24 to the laser 21, and the second power supply 24 can power the laser 21. When the second control signal control2 is a low-level signal, the fourth switch unit Q2 is turned off in response to the low-level signal. When the fourth switch unit Q2 is turned off, the gate of the third switch unit S2 is not grounded, and the third switch unit S2 is turned off, thereby disconnecting the second power supply 24 from the laser 21, and the second power supply 24 cannot power the laser 21.

[0093] In one example, the second filtering unit 231 may include a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and a fourth resistor R4. A first end of the fifth capacitor C5 may be connected to the drain of the third switch unit S2, and a second end of the fifth capacitor C5 may be grounded. A first end of the sixth capacitor C6 may be connected to the drain of the third switch unit S2, and a second end of the sixth capacitor C6 may be grounded. A first end of the seventh capacitor C7 may be connected to the output of the second power supply 24 and the source of the third switch unit S2, and a second end of the seventh capacitor C7 may be grounded. A first end of the eighth capacitor C8 may be connected to the output of the second power supply 24 and the source of the third switch unit S2, and a second end of the eighth capacitor C8 may be connected to the gate of the third switch unit S2. A first end of the fourth resistor R4 may be connected to the output of the second power supply 24 and the source of the third switch unit S2, and a second end of the fourth resistor R4 may be connected to the gate of the third switch unit S2. The second current limiting unit 232 includes a fifth resistor and a sixth resistor. A first end of the fifth resistor is connected to the output terminal of the processing chip 22, and a second end of the fifth resistor is connected to the base of the fourth switch unit Q2. A first end of the sixth resistor is connected to the base of the fourth switch unit Q2, and a second end of the sixth resistor is connected to the emitter of the fourth switch unit Q2.

[0094] In some embodiments, the optical communication device further includes an alarm device connected to the processing chip 22 . The processing chip 22 is further configured to control the alarm device to sound an alarm when the power of the incident light is outside a preset power range.

[0095] The alarm information output by the alarm device may include at least one of sound and light information, graphic and text information, and vibration information. For example, the alarm device may be a buzzer.

[0096] It can be understood that the alarm device in the optical communication equipment is connected to the processing chip 22. When the processing chip 22 determines that the incident light power is outside the preset power range based on the incident light power information fed back by the processing component 14, in addition to controlling the power supply control circuit 23 to disconnect the power supply circuit between the second power supply 24 and the laser 21, it will also synchronously trigger the alarm device to sound an alarm, thereby achieving a dual response to abnormal power conditions, which not only cuts off the power supply to the laser 21 to avoid damage to the equipment, but also prompts relevant personnel through the alarm to promptly investigate and deal with it, thereby improving the safety and fault warning capabilities of the system.

[0097] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present application may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present application. In particular, without departing from the spirit and teachings of the present application, the features described in the various embodiments and / or claims of the present application may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present application. Therefore, the scope of the present application should not be limited to the above-mentioned embodiments, but should be determined not only by the attached claims, but also by the equivalents of the attached claims. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An access light optical power detection device, characterized in that: include: Reflector, driving component, power detection component and processing component; wherein, The reflector is located on the incident light path of the incident light, and is used to receive the incident light and reflect the incident light to the power detection component; The power detection component is used to detect the power information of the incident light; The processing component is connected to the power detection component and the driving component respectively. The processing component is used to control the driving component to adjust the position and / or posture of the reflector when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light.

2. The access light optical power detection device according to claim 1, wherein: The reflector is also provided with a magnet; the driving assembly includes: an electromagnet, a first guide rail, an elastic element and a first power supply; The reflector is located on the first guide rail and is connected to one side of the first guide rail via the elastic element; The processing component is used to control the first power supply to supply power to the electromagnet when the power of the incident light is within a preset power range; When the electromagnet is not energized, the elastic element is in a relaxed state and the reflector is located on the incident light path of the incident light; when the electromagnet is energized, the electromagnet attracts the magnet on the reflector to make the reflector move along the first guide rail and deviate from the incident light path of the incident light.

3. The access light optical power detection device according to claim 2, characterized in that: The processing component includes a processor and a driving circuit; The driving circuit includes a first filtering unit, a first current limiting unit, a first switching unit, and a second switching unit. The first switching unit is located on the power supply line between the first power supply and the electromagnet, and the second switching unit is located between the control end of the first switching unit and a common ground. The first filtering unit is used to filter the first power signal output by the first power supply, and the first current limiting unit is used to limit the current of the first control signal input to the second switching unit. The processor is configured to output the first control signal to the control end of the second switch unit.

4. The access light optical power detection device according to claim 3, characterized in that: The first switch unit is a PMOS transistor, the second switch unit is an NPN transistor, the collector of the second switch unit is connected to the gate of the first switch unit, and the emitter of the second switch unit is grounded; The processor is configured to send a high-level signal to the base of the second switch unit when the power of the incident light is within a preset power range.

5. The access light optical power detection device according to claim 1, wherein: The driving assembly includes: a first motor, a transmission mechanism and a second guide rail; The reflector is located on the second guide rail; The first motor is connected to the reflector via the transmission mechanism, and the first motor is used to drive the reflector to move along the second guide rail; The processing component is connected to the first motor, and is used to control the first motor to drive the reflector to move along the second guide rail to a light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; and control the first motor to drive the reflector to move along the second guide rail to a light path disconnection position when the power of the incident light is outside the preset power range, so that the reflector is located on the incident light path of the incident light.

6. The access light optical power detection device according to claim 1, wherein: The driving assembly includes: a second motor, a push rod and a bracket; The reflector is rotatably connected to the bracket via a rotating shaft; The second motor is connected to the reflector via the push rod, and the second motor is used to drive the reflector to rotate around the rotation axis; The processing component is connected to the second motor, and the processing component is used to control the second motor to drive the reflector to rotate to the light path conduction position when the power of the incident light is within a preset power range, so that the reflector is located outside the incident light path of the incident light; when the power of the incident light is outside the preset power range, control the second motor to drive the reflector to rotate to the light path disconnection position when the incident light is outside the preset power range, so that the reflector is located on the incident light path of the incident light.

7. An optical communication device, characterized in that: The optical communication equipment includes: The access light optical power detection device according to any one of claims 1 to 6; a laser, the laser being located on an incident optical path of the incident light, and being configured to receive the incident light when the reflector of the access light optical power detection device is located outside the incident optical path of the incident light, and to generate incident light data based on the incident light; A processing chip is connected to the laser and is used to determine optical communication information according to the incident light data.

8. The optical communication device according to claim 7, wherein: The optical communication device further comprises: a second power supply and a power supply control circuit; The second power supply is connected to the laser via the power supply control circuit; The processing chip is connected to the power supply control circuit and the processing component respectively. The processing chip is used to control the power supply control circuit to be in a power-on state when the power of the incident light is within a preset power range, so that the second power supply supplies power to the laser; and to control the power supply control circuit to be in a power-off state when the power of the incident light is outside the preset power range, so as to disconnect the power supply circuit between the second power supply and the laser.

9. The optical communication device according to claim 8, wherein: The power supply control circuit includes: a second filtering unit, a second current limiting unit, a third switching unit and a fourth switching unit, wherein the third switching unit is located on the power supply line between the second power supply and the laser, and the fourth switching unit is located between the control end of the third switching unit and the common ground. The second filtering unit is used to filter the second power supply signal output by the second power supply, and the current limiting unit is used to limit the current of the second control signal input to the fourth switching unit. The processing chip is used to output the second control signal to the control end of the fourth switch unit.

10. The optical communication device according to claim 7, wherein: The optical communication device further includes an alarm device connected to the processing chip. The processing chip is further configured to control the alarm device to sound an alarm when the power of the incident light is outside a preset power range.

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