Switchgear and electronic equipment

Abstract

The present application provides a switch device and an electronic device, which relate to the field of switch control technology. The switch device includes: a photoelectric protection module, a control module, a spectrometer, a laser, and an electro-optical switch; the spectrometer is connected to the input end of the photoelectric protection module, the output end of the photoelectric protection module is connected to the input end of the control module, the output end of the control module is connected to the input end of the laser, the output end of the laser is connected to the input end of the electro-optical switch, and the input end of the electro-optical switch is also connected to the spectrometer. In this solution, by using optical signals as control signals and trigger signals, it is beneficial to improve the stability of signal transmission and reduce the influence of electromagnetic interference on the control and trigger signal transmission, thereby helping to improve the reliability of the switch action.

Description

Technical Field

[0001] The present invention relates to the technical field of switch control, and in particular to a switch device and a laser fuse. Background Art

[0002] Current switch devices are usually electronic switches or mechanical switches. Among them, the control signals of electronic switches are all electrical signals, and the switch control action is realized by the electrical signals. Mechanical switches realize the switch control action through mechanical movement or rotation mechanisms. Among them, the control and trigger signals of electronic switches are electrical signals that are easily affected by the external electromagnetic environment or easily triggered by mistake, and the reliability of mechanical switches is low. In the field of switch control with high safety requirements, such as the detonation of detonators, the safety and reliability of existing electronic switches and mechanical switches are poor, which is easy to cause safety accidents. Summary of the invention

[0003] The present application provides a switch device and an electronic device, which can improve the problems of low safety and poor reliability of switch control actions.

[0004] In order to achieve the above purpose, the technical solutions provided in the embodiments of the present application are as follows:

[0005] In a first aspect, an embodiment of the present application provides a switch device, the switch device comprising: a photoelectric protection module, a control module, a spectrometer, a laser, and an electro-optical switch;

[0006] The spectrometer is connected to the input end of the photoelectric protection module, the output end of the photoelectric protection module is connected to the input end of the control module, the output end of the control module is connected to the input end of the laser, the output end of the laser is connected to the input end of the electro-optical switch, and the input end of the electro-optical switch is also connected to the spectrometer;

[0007] The optical splitter is used to receive at least two optical signals, and split each optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal to the photoelectric protection module and the electro-optical switch respectively;

[0008] The photoelectric protection module is used for generating at least two level signals corresponding to the at least two first sub-signals when the photoelectric protection module receives at least two first sub-signals;

[0009] The control module is used to output a first control signal to the laser when the at least two level signals are both target level signals, and the target level signal is a level signal output by the photoelectric protection module when receiving the target optical signal;

[0010] The laser is used to output laser light to the electro-optical switch upon receiving the first control signal;

[0011] The electro-optical switch is used to open the optical channel based on the second control signal to output the laser light received from the laser and the optical splitter and the second sub-signal.

[0012] In the above-mentioned implementation, when the multiple first sub-signal lights are all target optical signals, the electro-optical switch is triggered, which is beneficial to improving the safety and reliability of the electro-optical switch action and reducing the situation where the electro-optical switch is triggered by mistake. In addition, by using the optical signal as the trigger signal, it is beneficial to improve the stability of signal transmission and reduce the influence of electromagnetic interference on optical signal transmission, thereby helping to improve the reliability of the switch action.

[0013] In combination with the first aspect, in some optional embodiments, there are multiple spectrometers, and each of the multiple spectrometers is used to split the received optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal into the photoelectric protection module and the electro-optical switch respectively; the photoelectric protection module is used to output corresponding multi-channel target level signals when the multiple second sub-signals sent by the multiple spectrometers are received as the target optical signals; and the control module is used to output the first control signal to the laser when the multiple target level signals are received.

[0014] In the above embodiment, the input optical signal is split to the electro-optical switch by multiple optical splitters, which is conducive to increasing the intensity of light received by the electro-optical switch. In addition, the electro-optical switch is triggered by multiple optical signals, which is conducive to improving the reliability of the switch action.

[0015] In combination with the first aspect, in some optional embodiments, the photoelectric protection module includes at least two protection circuits, each protection circuit is used to receive one of the first sub-signals, each of the protection circuits includes an optical MOS tube, and each of the optical MOS tube is used to output the target level signal when receiving the target optical signal.

[0016] In the above-mentioned implementation, the optoelectronic protection module can convert the optical signal into an electrical signal so as to perform protection processing on the optical signal according to the converted level signal.

[0017] In combination with the first aspect, in some optional embodiments, the release circuit also includes a latch connected to the optical MOS tube, and when the first sub-signal is the target optical signal, the latch is used to output the target level signal when each optical MOS tube generates a level signal based on the first sub-signal and the timing of generating the level signal is a specified timing.

[0018] In the above-mentioned implementation, the photoelectric protection module can be used to determine the timing of the received first sub-signal through the timing of the level signal generation through the latch, and output the target level signal when the timing is the specified timing. Based on this, the photoelectric switch action can only be triggered when the timing of the first sub-signal of the multi-channel input is the specified timing, which is conducive to improving the reliability and safety of the switch action.

[0019] In combination with the first aspect, in some optional embodiments, the control module includes an AND gate device and at least two telemetry circuits, the output ends of the at least two release protection circuits are connected to the input ends of the AND gate device, and the input ends of the at least two telemetry circuits are respectively connected to the output ends of the at least two release protection circuits, for receiving each level signal output by the photoelectric release protection module;

[0020] The output end of the AND gate device is connected to the laser, and the AND gate device is used to output the first control signal to the laser when the level signals output by the at least two release circuits are both the target level signals.

[0021] In combination with the first aspect, in some optional embodiments, the switch device further includes a fiber amplifier, and the fiber amplifier is arranged on the optical fiber from the laser and the splitter to the electro-optical switch.

[0022] In the above-mentioned implementation, amplifying the optical signal by means of the optical fiber amplifier is beneficial to increasing the energy of the optical signal so that the electro-optical switch can trigger the corresponding action by means of the optical signal.

[0023] In combination with the first aspect, in some optional implementations, the switch device further includes an optical isolator connected to the laser.

[0024] In the above-mentioned implementation, the optical isolator can prevent the optical signal from returning to the laser due to reflection, which is beneficial to improving the safety of the laser.

[0025] In combination with the first aspect, in some optional embodiments, the switch device further includes a power supply module and a relay connected to the laser and the control module, and the power supply module is connected to the laser via the relay for supplying power to the laser.

[0026] In the above implementation, the control module controls the switching actions of the relay and the power supply based on the level signal output by the photoelectric protection module, which is beneficial to improving the reliability of the power supply of the laser.

[0027] In combination with the first aspect, in some optional embodiments, the electro-optical switch includes an optical MOS tube and a switch body connected to the optical MOS tube, the switch body is used to connect to the laser detonator, and the optical MOS tube is used to control the switch body to open the optical channel when receiving the second control signal, so as to output the laser and the second sub-signal to the laser detonator to detonate the laser detonator, and the second control signal is an optical signal output by the control module when the at least two level signals are both the target level signals.

[0028] In the above-mentioned embodiment, after the electro-optical switch is connected to the laser detonator, the switch device can be used as a fuse or detonator of the laser detonator, thereby facilitating improving the safety and reliability of detonating the laser detonator.

[0029] In a second aspect, an embodiment of the present application further provides an electronic device, comprising a device body and the above-mentioned switch device, wherein the switch device is connected to a power supply circuit of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is one of the circuit module schematic diagrams of the switch device provided in an embodiment of the present application.

[0032] Figure 2 This is a second schematic diagram of a circuit module of a switch device provided in an embodiment of the present application.

[0033] Figure 3 A circuit diagram of the photoelectric protection module provided in an embodiment of the present application.

[0034] Figure 4 A schematic diagram of a telemetry circuit in a control module provided in an embodiment of the present application.

[0035] Icons: 100- switch device; 110- photoelectric protection module; 111- optical MOS tube; 112- latch; 120- control module; 121- AND gate device; 122- telemetry circuit; 130- spectrometer; 140- laser; 150- electro-optic switch; 160- optical fiber amplifier; 170- optical isolator; 180- relay; 190- power supply module. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. It should be noted that the terms "first", "second" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0037] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] Please refer to Figure 1 , an embodiment of the present application provides a switch device 100, which can be used to use multiple optical signals as trigger conditions for the switch device 100. For example, when the wavelength of each optical signal is an optical signal of a specified wavelength, the switch device 100 performs a corresponding opening action or closing action. Controlling the opening and closing of the switch device 100 by multiple optical signals is beneficial to improving the safety and reliability of the switch control actuator. Among them, the optical signal of the specified wavelength is the target optical signal. The specified wavelength can be set according to actual conditions. For example, the specified wavelength can be 980 nanometers.

[0039] In this embodiment, the switch device 100 may include a photoelectric protection module 110 , a control module 120 , a spectrometer 130 , a laser 140 , and an electro-optical switch 150 .

[0040] The spectrometer 130 is connected to the input end of the photoelectric protection module 110, the output end of the photoelectric protection module 110 is connected to the input end of the control module 120, the output end of the control module 120 is connected to the input end of the laser 140, the output end of the laser 140 is connected to the input end of the electro-optical switch 150, and the input end of the electro-optical switch 150 is also connected to the spectrometer 130.

[0041] The optical splitter 130 is used to receive at least two optical signals, and split each optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal to the photoelectric protection module 110 and the electro-optical switch 150 respectively.

[0042] The photoelectric protection module 110 is used to generate at least two level signals corresponding to the at least two first sub-signals when the photoelectric protection module 110 receives at least two first sub-signals.

[0043] The control module 120 is used to output a first control signal to the laser 140 when at least two level signals are target level signals. The target level signal is a level signal output by the photoelectric protection module 110 when receiving a target optical signal.

[0044] The laser 140 is used to output laser light to the electro-optical switch 150 when receiving the first control signal.

[0045] The electro-optical switch 150 is used to open the optical channel based on the second control signal to output the laser light received from the laser 140 and the optical splitter 130 and the second sub-signal.

[0046] The working principle of the switch device 100 may be as follows:

[0047] When the switch device 100 is in operation, the optical splitter 130 can receive at least two optical signals input. Each optical signal can be input to the optical splitter 130 in sequence by the user by turning on the corresponding control switch. It is understandable that each optical signal can be provided with a corresponding control switch for independent control. Among them, the transmission medium of the optical signal can be an optical fiber, and each optical signal can be used as a transmission channel of the optical signal through the corresponding optical fiber. Optical signals of different paths can be transmitted through different optical fibers, and the control switch can be set on the corresponding optical fiber. When the user turns on the control switch, the corresponding optical signal can be input to the optical splitter 130 through the optical fiber.

[0048] When the optical splitter 130 receives at least two optical signals, each optical signal can be divided into a first sub-signal and a second sub-signal. The optical signal received by the optical splitter 130 can be called an original optical signal, and the first sub-signal and the second sub-signal are optical signals after the original optical signal is split by the optical splitter 130. The wavelengths of the first sub-signal and the second sub-signal are the same as the wavelength of the original optical signal. Each first sub-signal can be transmitted to the optoelectronic protection module 110, and each second sub-signal can be transmitted to the electro-optical switch 150.

[0049] The photoelectric protection module 110 can output a corresponding level signal based on the received optical signal (first sub-signal). For example, the photoelectric protection module 110 can include an optical MOS tube 111 device that outputs a corresponding level signal when receiving a laser of a specified wavelength. Among them, the level type of each target level signal output by the photoelectric protection module 110 is the same, for example, the output levels are all low-level signals, or all high-level signals, which can be set according to actual conditions.

[0050] For example, when the photoelectric protection module 110 receives a target optical signal with a specified wavelength as the first sub-signal, it outputs a high-level signal, and the high-level signal is the target level signal; when receiving optical signals of other wavelengths (excluding the target optical signal), it outputs a low-level signal, and each first sub-signal corresponds to a level signal. Of course, it is also possible that when the photoelectric protection module 110 receives a target optical signal with a specified wavelength as the first sub-signal, it outputs a low-level signal, and the low-level signal is the target level signal; when receiving optical signals of other wavelengths (excluding the target optical signal), it outputs a high-level signal.

[0051] Each level signal output by the photoelectric protection module 110 can be sent to the control module 120, so that the control module 120 can analyze and process each level signal to determine whether each level signal is a target level signal. If each level signal received by the control module 120 is a target level signal, it means that the wavelength of each optical signal received by the photoelectric protection module 110 is a target optical signal of a specified wavelength. At this time, the control module 120 can output a first control signal to the laser 140 to control the start of the laser 140. If the control module 120 determines that one or more level signals among the multiple level signals output from the photoelectric protection module 110 are not target level signals, the control module 120 does not need to output the first control signal, and the laser 140 does not start.

[0052] When the laser 140 is started according to the first control signal, the laser output by the laser 140 can be combined with the second sub-signal separated by the beam splitter 130 and input to the electro-optical switch 150 to activate the electro-optical switch 150. It can be understood that the energy or power of the second optical signal separated by the beam splitter 130 cannot reach the triggering condition for the electro-optical switch 150 to activate, and the energy or power of each second sub-signal combined with the laser output by the laser 140 can meet the triggering condition for the electro-optical switch 150 to activate. In addition, after the laser output by the laser 140 is combined with the energy of each second sub-signal, it is beneficial to increase the energy or power of the laser entering the electro-optical switch 150.

[0053] The electro-optic switch 150 can be used as a switch for controlling the output of laser light, and can control the output of the laser light received from the beam splitter 130 and the laser 140 or stop the output when receiving a corresponding control signal.

[0054] For example, when the electro-optical switch 150 is used as a control switch for laser output, after receiving the laser and the second sub-signal output by the laser 140, the laser and the second sub-signal will not be directly output. The laser and the second sub-signal need to be allowed to be output only after receiving the second control signal. For example, after receiving the second control signal, the electro-optical switch 150 opens the optical channel for transmitting the optical signal to output the second sub-signal and the laser output by the laser 140. The laser output from the electro-optical switch 150 includes the laser of the laser 140 and the second sub-signal of the spectrometer 130, which can be used as a trigger signal to trigger a corresponding action. For example, the laser output from the electro-optical switch 150 can be used to detonate a laser detonator. Among them, the second control signal can be an optical signal input to the electro-optical switch 150 by an external device (such as a new laser), or an optical signal output by the control module 120. The input method of the second control signal to the electro-optical switch 150 can be determined according to actual conditions, and is not specifically limited here.

[0055] Understandably, in the above-mentioned embodiment, the electro-optical switch 150 is triggered to operate and laser output is allowed only when the multiple first sub-signal lights are all target optical signals and the electro-optical switch 150 receives the second control signal. Based on this, it is beneficial to improve the safety and reliability of the operation of the electro-optical switch 150 and reduce the possibility of the electro-optical switch 150 being triggered by mistake.

[0056] In this embodiment, the optical splitter 130 can be used to separate one or more paths of light separately. The structure of the optical splitter 130 can be set according to actual conditions. For example, there can be one optical splitter 130, and the optical splitter 130 can be provided with a plurality of beam splitter prisms for separating optical signals, and each beam splitter prism can be used to separate one path of optical signal. Alternatively, there are a plurality of optical splitters 130, each of which includes a beam splitter prism, and each beam splitter prism can be used to separate one path of optical signal, and a plurality of beam splitter prisms can realize the separation of multiple paths of optical signals.

[0057] For example, each of the multiple splitters 130 is used to split the received optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal into the photoelectric protection module 110 and the electro-optical switch 150, respectively; the photoelectric protection module 110 is used to output corresponding multi-channel target level signals when receiving multiple second sub-signals sent by the multiple splitters 130 as target optical signals; the control module 120 is used to output a first control signal to the laser 140 when receiving multiple target level signals.

[0058] In the above-mentioned embodiment, the input optical signal is split to the electro-optical switch 150 by multiple optical splitters 130, which is conducive to increasing the intensity of the optical signal received by the electro-optical switch 150. In addition, triggering the electro-optical switch 150 to operate by multiple optical signals is conducive to improving the reliability of the switch operation and avoiding the electro-optical switch 150 from operating due to triggering one of the optical signals.

[0059] Understandably, the photoelectric protection module 110 may include at least two protection circuits, each protection circuit is used to receive a first sub-signal, each protection circuit includes an optical MOS tube 111, and each optical MOS tube 111 is used to output a target level signal when receiving a target optical signal.

[0060] Please refer to Figure 2 and Figure 3 ,exist Figure 2The original optical signal input to the photoelectric protection module 110 is three-way. The protection circuit can sense the input first sub-signal through the optical MOS tube 111 and generate a corresponding level signal. It can be understood that the optical MOS tube 111 is an electronic device formed of photosensitive materials, which can be turned on or off under the irradiation of a laser of a specific wavelength. If the first sub-signal is an optical signal of a specified wavelength, the optical MOS tube 111 can output a first level signal, and the first level signal is the target level signal; if the first sub-signal is not an optical signal of a specified wavelength, the optical MOS tube 111 can output a second level signal different from the first level signal, and the second level signal is not the target level signal. Among them, when the first level signal is a high level signal, the second level signal is a low level signal. When the first level signal is a low level signal, the second level signal is a high level signal.

[0061] In the above-mentioned implementation, the optoelectronic protection module 110 can convert the optical signal into an electrical signal so as to perform protection processing on the optical signal according to the converted level signal.

[0062] Please refer to Figure 3 As an optional implementation, the release protection circuit may further include a latch 112 connected to the optical MOS tube 111. When the first sub-signal is the target optical signal, the latch 112 is used to output the target level signal when each optical MOS tube 111 generates a level signal based on the first sub-signal and the timing of generating the level signal is the specified timing. It is not necessary to set the latch 112 in each release protection circuit. For example, the latch 112 may not be set in the release protection circuit corresponding to the level signal of the end timing of the specified sequence.

[0063] exist Figure 3 In the figure, "1JB_OK", "2JB_OK" and "3JB_OK" refer to the first sub-signal of the three-way protection circuit. The circuits where "1JB_OK", "2JB_OK" and "3JB_OK" are located are the protection circuits. Figure 2 The signal output when the first sub-signal of A, B, and C is released successfully.

[0064] The designated timing can be set according to actual conditions. For example, the order of the original lasers input from the three paths A, B, and C is A, B, and C. That is, after the original optical signals from the three paths A, B, and C are turned on in sequence, and the wavelength of the original optical signals is the designated wavelength, the electro-optical switch 150 will be operated.

[0065] In the above-mentioned embodiment, the photoelectric protection module 110 can be used to determine the timing of the received first sub-signal through the timing of the level signal generation through the latch 112, and output the target level signal when the timing is the specified timing. Based on this, when the timing of the multi-channel input first sub-signal is the specified timing, the control module 120 can output the first control signal, which is conducive to improving the reliability and safety of the generated first control signal.

[0066] Please refer to Figure 2 and Figure 4 As an optional implementation, the control module 120 may include an AND gate device 121 and at least two telemetry circuits 122, the output ends of the at least two release circuits are connected to the input ends of the AND gate device 121, and the input ends of the at least two telemetry circuits 122 are respectively connected to the output ends of the at least two release circuits, for receiving each level signal output by the photoelectric release module 110. The output end of the AND gate device 121 is connected to the laser 140, or is connected to the laser 140 through the relay 180. The AND gate device 121 is used to output a first control signal to the laser 140 or the relay 180 when the level signals output by the at least two release circuits are both target level signals.

[0067] For example, in Figure 1 In the embodiment, the AND gate device 121 directly outputs the first control signal to the laser 140 to control the laser 140 to turn on and output the laser to the electro-optical switch 150. Figure 2 In the embodiment, the AND gate device 121 directly outputs the first control signal to the relay 180 to control the conduction of the power supply of the laser 140 to output the laser to the electro-optical switch 150.

[0068] It is understandable that the AND gate device 121 can perform an AND operation, and its operation mode can be set according to actual conditions. For example, when each level signal input to the AND gate device 121 is a high level signal, the AND gate device 121 outputs a high level signal. If one or more of the level signals input to the AND gate device 121 are low level signals, the AND gate device 121 outputs a low level signal. At this time, the high level signal input to the AND gate device 121 is the target level signal, and the high level signal output by the AND gate device 121 is the first control signal.

[0069] Alternatively, when each level signal input to the AND gate device 121 is a low level signal, the AND gate device 121 outputs a low level signal. If one or more of the level signals input to the AND gate device 121 are high level signals, the AND gate device 121 outputs a high level signal. At this time, the low level signal input to the AND gate device 121 is the target level signal, and the low level signal output by the AND gate device 121 is the first control signal.

[0070] exist Figure 4 In the embodiment, the control module 120 includes three telemetry circuits 122, each of which includes corresponding logic gate devices and optical fiber couplers. The connection method thereof is shown in FIG. Figure 4 , which will not be elaborated here. Among them, the "1 telemetering light released", "2 telemetering light released", and "3 telemetering light released" respectively output by the three telemetering circuits 122 are used for users to view the release status of the first sub-signals of A, B, and C. For example, if all three channels are successfully released, the fiber optic coupler corresponding to the "3 telemetering light released" end can output laser, and the other two telemetering circuits cannot output laser. If only channel A is released successfully, the fiber optic coupler corresponding to the "1 telemetering light released" end can output laser, and the other two telemetering circuits cannot output laser. If only channels A and B are released successfully, the fiber optic coupler corresponding to the "2 telemetering light released" end can output laser, and the other two telemetering circuits cannot output laser. If all three channels are successfully released, the three release circuits cannot output laser. Users can understand the release status of the three first sub-signals through the laser output by each release circuit.

[0071] The telemetry circuit (e.g., Figure 4 The remote sensing circuit where the "3-way remote sensing light" is located can be called a switch control circuit, and can be used as a module circuit for outputting the second control signal. That is, the "3-way remote sensing light" can be obtained by the optical splitter. Figure 4 The D and C' optical signals in the embodiment of the present invention are as follows: the D optical signal is the second control signal, which can be transmitted to the electro-optical switch 150 through the optical fiber to control the electro-optical switch 150 to act according to the second control signal. Of course, in other embodiments, the D optical signal can also be generated by a device different from the control module 120, for example, a new laser can be used to provide an optical signal to the electro-optical switch 150 alone, and the optical signal is the D optical signal, which can be used as the second control signal.

[0072] For example, the electro-optical switch 150 includes an optical MOS tube and a switch body connected to the optical MOS tube. The switch body can be used to connect to a laser detonator. The optical MOS tube is used to control the switch body to open an optical channel when receiving a second control signal to output a laser and a second sub-signal to the laser detonator. The output laser and the second sub-signal can be used to detonate the laser detonator. The second control signal is an optical signal output by the control module 120 when at least two level signals are target level signals. Among them, the optical MOS tube in the electro-optical switch 150 can be used as a photosensitive device, and the photosensitive device can be a switch that is turned on when receiving an optical signal. For example, the optical MOS tube can be turned on when receiving an optical signal.

[0073] In this embodiment, the second control signal can be used as a detonation signal of a laser detonator. The laser detonator can be automatically detonated after receiving laser irradiation of a certain energy (or power or intensity). When the electro-optical switch 150 receives the second control signal, it can open the channel for transmitting the laser. At this time, the laser transmitted to the electro-optical switch 150 can be transmitted to the laser detonator to detonate the laser detonator. At this time, the switch device 100 serves as a laser fuse of the laser detonator and can be used to detonate the laser detonator when the conditions are met.

[0074] Understandably, when the switch device 100 is used as a laser fuse of a laser detonator, in actual application, the distance between the electro-optical switch 150 and the laser detonator is relatively close (e.g., within 1 meter). Except for the electro-optical switch 150, other components in the switch device 100 (e.g., photoelectric protection module 110, controller 120, optical splitter 130, laser 140, optical fiber amplifier 160, optical isolator 170, etc.) are on the user side and are relatively far from the laser detonator (e.g., more than 200 meters). When detonating the laser detonator, the electro-optical switch 150 can have its own power supply, or have a photoelectric conversion module that can convert part of the received laser into electrical energy to power the electro-optical switch 150, so that the optical MOS tube in the electro-optical switch 150 can control the switch body to open the optical channel after receiving the second control signal.

[0075] Since the second control signal inputted by the control module 120 to the electro-optical switch 150 is an optical signal, it is helpful to improve the stability of signal transmission and avoid the unreliable control action of the electro-optical switch 150 due to the signal transmitted to the electro-optical switch 150 being an electrical signal (electrical signals are easily affected by electromagnetic interference during long-distance transmission, and there is a risk of signal interruption). That is, by using optical signals as the control action of the electro-optical switch 150, it is helpful to improve the reliability of the switch action.

[0076] As an optional implementation, when the wavelengths of multiple original optical signals are all specified wavelengths and the triggering sequence is the specified sequence, the electro-optical switch 150 opens the channel for transmitting the laser, so that the coupled second sub-signal and the laser output by the laser 140 are irradiated on the laser detonator to detonate the laser detonator.

[0077] In the above-mentioned embodiment, after the electro-optical switch 150 is connected to the laser detonator, the switch device 100 can be used as a fuse or detonator of the laser detonator, thereby facilitating improving the safety and reliability of detonating the laser detonator.

[0078] As an optional embodiment, the switching device 100 also includes an optical fiber amplifier 160, which is arranged on the optical fiber from the laser 140 and the splitter 130 to the electro-optical switch 150, and can be used to amplify the optical signal of a specified wavelength and couple it with the laser output by the laser 140. The coupled laser can be output to the electro-optical switch 150 to increase the energy, power or intensity of the laser output to the electro-optical switch 150.

[0079] In the above-mentioned embodiment, amplifying the optical signal by the optical fiber amplifier 160 is beneficial to increasing the energy of the optical signal, so that the electro-optical switch 150 can trigger the corresponding action by using the optical signal.

[0080] As an optional implementation, the switch device 100 may further include an optical isolator 170 connected to the laser 140 .

[0081] The optical isolator 170 can be used for unidirectional transmission of optical signals and can be used to isolate laser light reflected from the optical fiber to the laser 140 .

[0082] In the above-mentioned embodiment, the optical isolator 170 can prevent the optical signal from returning to the laser 140 due to reflection, which is beneficial to improving the safety of the laser 140 .

[0083] As an optional implementation, the switch device 100 further includes a power module 190 and a relay 180 connected to the laser 140 and the control module 120 . The power module 190 is connected to the laser 140 via the relay 180 to supply power to the laser 140 .

[0084] In the above-mentioned implementation, the control module 120 controls the switching action of the relay 180 and the power supply based on the level signal output by the photoelectric protection module 110 , which is beneficial to improving the reliability of the power supply of the laser 140 .

[0085] The parameters and models of the laser 140, the optical fiber amplifier 160, and the optical isolator 170 can be determined according to actual conditions. The working principle of each device is well known to those skilled in the art and will not be described in detail here.

[0086] In order to facilitate understanding of the working principle of the switch device 100, the following will be based on Figures 2 to 4 , the working principle of the switch device 100 as a laser fuse of a laser detonator is described by way of example:

[0087] For example, in Figure 3 When the photoelectric protection module 110 does not receive the protection optical signal (optical signal of the specified wavelength), the Q1MOS tube (MOS tube refers to Figure 3The MOSFET device in the embodiment of the present invention) and the Q2 MOS tube are all in the on state. The Q3, Q4, and Q5 photosensitive MOS tubes (i.e., the photo MOS tube 111) are all in the off state, the electro-optical switch 150 does not operate, and the laser detonator will not be detonated by the electro-optical switch 150.

[0088] When the A channel transmits a release optical signal (hereinafter referred to as A channel light), the A channel light is split by the optical splitter 130 to form a first sub-signal and a second sub-signal, wherein the energy of the first sub-signal may be less than the energy of the second sub-signal. That is, a large amount of light (the second sub-signal) is incident on the fiber amplifier A to become pump light, and a small amount of light (the first sub-signal) is incident on the Q3 photosensitive N-type MOS tube, making the Q3 MOS tube conductive, and the output mark is "1JB_OK" (where "1JB_OK" is Figure 4 "JB1_OK", "2JB_OK" in Figure 4 "JB2_OK", "3JB_OK" in Figure 4 The target level signal of "JB3_OK" in the telemetry circuit 122 is sent to the telemetry circuit 122. At this time, Figure 4 In the circuit, laser is output only at the "1 release telemetry light" end (indicating that the A path is released successfully). At the same time, the LE end of the latch 112 (for the sake of distinction, the latch can be called 1# latch 112) in the release circuit where the "1 release input light" is located is set to a low level, and the output of 1# latch 112 is locked to a low level, so the change of the D port of 1# latch 112 will not affect the switch of Q1MOS tube.

[0089] After the A channel is released successfully, when the B channel transmits a release optical signal (hereinafter referred to as B channel light), the laser is split by the optical splitter 130, a large amount of light is incident on the optical fiber amplifier B to become pump light, and a small amount of light is incident on the Q4 photosensitive N-type MOS tube (the optical MOS tube 111 in the photoelectric release module 110), so that the Q4 MOS tube is turned on and outputs two target level signals marked as "1JB_OK" and "2JB_OK", then the AND gate where the "2 release telemetry light" is located outputs a high level. At this time, Figure 4 In the circuit, only the laser is output at the "2 release remote sensing light" end (indicating that the A and B paths are released successfully). At the same time, the LE end of the latch 112 (the latch can be called the 2# latch 112) in the circuit where the "2 release input light" is located is set to a low level, and the output of the 2# latch 112 is locked to a low level, so the change of the D port of the 2# latch 112 will not affect the switch of the Q2MOS tube.

[0090] After the A and B paths are released successfully, when the C path transmits a release optical signal (hereinafter referred to as C path light), the laser is split by the optical splitter 130, a large amount of light is incident on the optical fiber amplifier C to become pump light, and a small amount of light is incident on the Q5 photosensitive N-type MOS tube (the optical MOS tube 111 in the photoelectric release module 110), so that the Q5 MOS tube is turned on. At this time, the output is marked as "1JB_OK", "2JB_OK", and "3JB_OK" three-path target level signal, then the AND gate of the circuit where the "3 release telemetry light" is located outputs a high level. At this time, Figure 4 In the process, laser is output only at the "3 release remote sensing light" end (indicating that A, B, and C channels are all released successfully).

[0091] In addition, after the three-way release is completed, the three-way level signals output by the photoelectric release module 110 can be connected to the relay 180 through an AND gate. When the three-way level signals are all target level signals, the output signal controls EN_QB to open the switch of the relay 180, so that the power module 190 is electrically connected to the laser 140. After the laser 140 outputs the laser through the optical isolator 170, it is amplified in turn by the optical fiber amplifiers A, B, and C. The amplified laser energy can be used to detonate the laser detonator.

[0092] When the electro-optical switch 150 receives the detonation signal (second control signal), it will open the optical channel of the electro-optical switch 150. The amplified laser will be output to the laser detonator, and finally detonate the detonator.

[0093] When the three-way release signal is not input according to the specified timing, the fuse is in a safe state and the laser detonator will not be detonated. For example, if the light from path B arrives before the light from path A, then latch 112 #1 is not in a latched state, and the "2JB_OK" signal causes latch 112 #1 to output a high level, and the Q1MOS tube is turned off. When the light from path A is received again, the release of path A cannot be completed because the Q1MOS tube is turned off. And the release telemetry will not output laser. Similarly, the C-way light cannot release the fuse even if it arrives first. In addition, if only one or two release signals are received, the release cannot be completed.

[0094] The embodiment of the present application also provides an electronic device, which may include a device body and the above-mentioned switch device 100, the switch device 100 is connected to the power supply line of the device body, and can control the conduction and opening of the power supply of the device body. The electronic device may be a device with high requirements for the safety and reliability of the switch action. For example, the device body is an electric door or an electronic safe, and the switch device 100 can be used as a switch of the electric door or the electronic safe.

[0095] In summary, the present application provides a switch device and an electronic device. The switch device includes: a photoelectric protection module, a control module, a spectrometer, a laser, and an electro-optical switch; the spectrometer is connected to the input end of the photoelectric protection module, the output end of the photoelectric protection module is connected to the input end of the control module, the output end of the control module is connected to the input end of the laser, the output end of the laser is connected to the input end of the electro-optical switch, and the input end of the electro-optical switch is also connected to the spectrometer; the spectrometer is used to receive at least two optical signals, and divide each optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal to the photoelectric protection module and the electro-optical switch respectively; the photoelectric protection module is connected to the input end of the laser, and the output end of the laser is connected to the input end of the electro-optical switch. The protection module is used to generate at least two level signals corresponding to at least two first sub-signals when the photoelectric protection module receives at least two first sub-signals; the control module is used to output a first control signal to the laser when at least two level signals are target level signals, and the target level signal is the level signal output by the photoelectric protection module when receiving the target optical signal; the laser is used to output laser to the electro-optical switch when receiving the first control signal; the electro-optical switch is used to open the optical channel based on the second control signal output by the control module to output the laser and the second sub-signal received from the laser and the spectrometer. In this solution, when multiple first sub-signal lights are target optical signals, the electro-optical switch is triggered, which is conducive to improving the safety and reliability of the electro-optical switch action and reducing the situation where the electro-optical switch is triggered by mistake. In addition, by using the optical signal as the trigger signal, it is conducive to improving the stability of signal transmission and reducing the influence of electromagnetic interference on optical signal transmission, thereby helping to improve the reliability of the switch action.

[0096] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A switch device, characterized in that: The switch device comprises: a photoelectric protection module, a control module, a spectrometer, a laser, and an electro-optical switch; The spectrometer is connected to the input end of the photoelectric protection module, the output end of the photoelectric protection module is connected to the input end of the control module, the output end of the control module is connected to the input end of the laser, the output end of the laser is connected to the input end of the electro-optical switch, and the input end of the electro-optical switch is also connected to the spectrometer; The optical splitter is used to receive at least two optical signals, and split each optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal to the photoelectric protection module and the electro-optical switch respectively; The photoelectric protection module is used for generating at least two level signals corresponding to the at least two first sub-signals when the photoelectric protection module receives at least two first sub-signals; The control module is used to output a first control signal to the laser when the at least two level signals are both target level signals, and the target level signal is a level signal output by the photoelectric protection module when receiving the target optical signal; The laser is used to output laser light to the electro-optical switch upon receiving the first control signal; The electro-optical switch is used to open the optical channel based on the second control signal to output the laser light and the second sub-signal received from the laser and the optical splitter; The electro-optical switch comprises an optical MOS tube and a switch body connected to the optical MOS tube, the switch body is used to be connected to the laser detonator, the optical MOS tube is used to control the switch body to open the optical channel when receiving the second control signal, so as to output the laser and the second sub-signal to the laser detonator to detonate the laser detonator, and the second control signal is an optical signal output by the control module when the at least two level signals are both the target level signals; Wherein, the optical MOS tube is formed of photosensitive material; There are multiple spectrometers, and each of the multiple spectrometers is used to split the received optical signal into a first sub-signal and a second sub-signal, and input the first sub-signal and the second sub-signal into the photoelectric protection module and the electro-optical switch respectively; the photoelectric protection module is used to output corresponding multi-channel target level signals when the multi-channel second sub-signals sent by the multiple spectrometers are received as the target optical signals; the control module is used to output the first control signal to the laser when the multi-channel target level signals are received.

2. The switch device according to claim 1, characterized in that: The photoelectric protection module includes at least two protection circuits, each protection circuit is used to receive one of the first sub-signals, each protection circuit includes an optical MOS tube, and each optical MOS tube is used to output the target level signal when receiving the target optical signal.

3. The switch device according to claim 2, characterized in that: The release circuit also includes a latch connected to the optical MOS tube. When the first sub-signal is the target optical signal, the latch is used to output the target level signal when each optical MOS tube generates a level signal based on the first sub-signal and the timing of generating the level signal is a specified timing.

4. The switch device according to claim 2, characterized in that: The control module includes an AND gate device and at least two telemetry circuits, the output ends of the at least two release protection circuits are connected to the input ends of the AND gate device, and the input ends of the at least two telemetry circuits are respectively connected to the output ends of the at least two release protection circuits, for receiving each level signal output by the photoelectric release protection module; The output end of the AND gate device is connected to the laser, and the AND gate device is used to output the first control signal to the laser when the level signals output by the at least two release circuits are both the target level signals.

5. The switch device according to claim 1, characterized in that: The switch device further comprises an optical fiber amplifier, which is arranged on the optical fiber from the laser and the optical splitter to the electro-optical switch.

6. The switch device according to claim 1, characterized in that: The switch device also includes an optical isolator connected to the laser.

7. The switch device according to claim 1, characterized in that: The switch device further comprises a power supply module and a relay connected to the laser and the control module. The power supply module is connected to the laser via the relay for supplying power to the laser.

8. An electronic device, characterized in that: It comprises a device body and a switch device as described in any one of claims 1 to 7, wherein the switch device is connected to a power supply line of the device body.

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