Laser alarm circuit

Abstract

The utility model provides a laser alarm circuit. The laser alarm circuit comprises a main module, a plurality of sub-modules and a bus, wherein the main module is respectively connected with a first electronic switch and a second electronic switch, and the first electronic switch is connected with the second electronic switch; each sub-module is connected with a third electronic switch and a fourth electronic switch, and the third electronic switch is connected with the fourth electronic switch; the bus is respectively connected with the first electronic switch and the second electronic switch, and the bus is also respectively connected with the third electronic switch and the fourth electronic switch. It can be seen that the laser alarm circuit can rapidly transmit the alarm signal to other modules after the module generates the alarm signal, and the alarm circuit is simple in structure.

Description

Technical Field

[0001] The present application belongs to the field of laser technology, and more specifically, relates to a laser alarm circuit. Background Art

[0002] In a multi-mode laser system, the total laser power is formed by combining the powers of multiple sub-modules. When any sub-module has abnormal light output, it is necessary not only to shut down the module itself for protection, but also to quickly and reliably notify other sub-modules to shut down for protection. Therefore, it is necessary to set up an alarm circuit that can send alarm signals to each sub-module in time so that each sub-module can shut down for protection. Utility Model Content

[0003] The present application provides a laser alarm circuit which can accurately transmit an alarm signal to protect the laser.

[0004] The technical solution adopted in the present application is a laser alarm circuit, characterized in that it comprises a bus, a main module and a plurality of submodules, wherein the main module and the plurality of submodules are connected to the bus;

[0005] The laser alarm circuit also includes:

[0006] a first electronic switch, wherein the first electronic switch connects an alarm signal output terminal of the main module and the bus;

[0007] a second electronic switch, the second electronic switch connecting the alarm signal receiving terminal of the main module and the bus;

[0008] a plurality of third electronic switches, each of the third electronic switches being connected to an alarm signal output terminal of the submodule and the bus; and

[0009] A plurality of fourth electronic switches, each of the fourth electronic switches is connected to an alarm signal receiving end of the submodule and the bus;

[0010] The alarm signal of the main module controls the state of the first electronic switch to change; or the alarm signal of the submodule controls the state of the third electronic switch to change;

[0011] The bus generates a control signal, and the control signal controls the states of the second electronic switch and the fourth electronic switch to change, so that the alarm signal receiving end of the main module and the alarm signal receiving end of the submodule receive corresponding signals.

[0012] It can be seen that in the laser alarm circuit of the present application, the main module is connected to the first electronic switch and the second electronic switch respectively, and the first electronic switch is connected to the second electronic switch, each sub-module is connected to the third electronic switch and the fourth electronic switch respectively, and the third electronic switch is connected to the fourth electronic switch, and then the bus is used to connect to the first electronic switch and the second electronic switch respectively, and the bus is also connected to the third electronic switch and the fourth electronic switch respectively.

[0013] When the main module generates an alarm signal, the main module can change the state of the first electronic switch, and the signal of the state change of the first electronic switch is transmitted to the fourth electronic switch through the bus, so that the state of the fourth electronic switch is changed, and the signal of the state change of the fourth electronic switch is transmitted to the sub-module; or when the sub-module generates an alarm signal, the sub-module can change the state of the third electronic switch, and the signal of the state change of the third electronic switch is transmitted to the second electronic switch through the bus, so that the state of the second electronic switch is changed, and the signal of the state change of the second electronic switch is transmitted to the main module.

[0014] The alarm circuit can realize that when the alarm signal is generated by its own module, the alarm signal can be quickly transmitted to other modules, and the alarm circuit has a simple structure.

[0015] Optionally, the first electronic switch and the second electronic switch are triodes.

[0016] Optionally, the main module is connected to the base of the first electronic switch, the emitter of the first electronic switch is grounded, the collector of the first electronic switch is connected to the base of the second electronic switch, the emitter of the second electronic switch is grounded, and the collector of the second electronic switch is connected to the main module; and

[0017] The bus is connected to the collector of the first electronic switch and the base of the second electronic switch respectively.

[0018] Optionally, the collector of the first electronic switch is further connected to a first power supply, and the collector of the second electronic switch is further connected to a second power supply.

[0019] Optionally, a first resistor is further connected between the collector of the first electronic switch and the first power supply, and a second resistor is further connected between the collector of the second electronic switch and the second power supply.

[0020] Optionally, the third electronic switch and the fourth electronic switch are triodes.

[0021] Optionally, the submodule is connected to the base of the third electronic switch, the emitter of the third electronic switch is grounded, the collector of the third electronic switch is connected to the base of the fourth electronic switch, the emitter of the fourth electronic switch is grounded, and the collector of the fourth electronic switch is connected to the submodule; and

[0022] The bus is connected to the collector of the third electronic switch and the base of the fourth electronic switch respectively.

[0023] Optionally, the collector of the third electronic switch is further connected to a third power supply, and the collector of the fourth electronic switch is further connected to a fourth power supply.

[0024] Optionally, a third resistor is connected between the collector of the third electronic switch and the third power supply, and a fourth resistor is connected between the collector of the fourth electronic switch and the fourth power supply.

[0025] Optionally, a fifth resistor is provided between the first electronic switch and the main module, and a sixth resistor is provided between the third electronic switch and the submodule. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0027] Figure 1 This is a structural block diagram of a laser alarm circuit provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 100, main module; 200, submodule; 300, bus. Specific embodiments

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when a metastructure is referred to as being "fixed to" or "set on" another metastructure, it can be directly on the other metastructure or indirectly on the other metastructure. When a metastructure is referred to as being "connected to" another metastructure, it can be directly connected to the other metastructure or indirectly connected to the other metastructure.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of some applications, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figure 1 The present application provides a laser alarm circuit, including a main module 100, a plurality of submodules 200 and a bus 300. The main module 100 can be connected to the submodules 200 respectively through the bus 300 to achieve signal transmission between the main module 100 and each submodule 200.

[0035] Furthermore, the laser alarm circuit further includes a first electronic switch Q1, a second electronic switch Q2, a third electronic switch Q3 and a fourth electronic switch Q4.

[0036] The first electronic switch Q1 connects the alarm signal output terminal of the main module 100 and the bus 300 .

[0037] The second electronic switch Q2 connects the alarm signal receiving terminal of the main module 100 and the bus 300 .

[0038] Each third electronic switch Q3 is connected to an alarm signal output terminal of a submodule 200 and the bus 300 .

[0039] Each fourth electronic switch Q4 is connected to an alarm signal receiving end of a submodule 200 and the bus 300 .

[0040] The alarm signal of the main module controls the state of the first electronic switch Q1 to change; or, the alarm signal of the submodule 200 controls the state of the third electronic switch Q3 to change; so that the bus 300 generates a control signal, and the control signal controls the state of the second electronic switch Q2 and the fourth electronic switch Q4 to change, so that the alarm signal receiving end of the main module 100 and the alarm signal receiving end of the submodule 200 receive corresponding signals.

[0041] That is, when the main module 100 generates an alarm signal, the main module 100 can change the state of the first electronic switch Q1, and the signal of the state change of the first electronic switch Q1 is transmitted to the fourth electronic switch Q4 through the bus 300, so that the state of the fourth electronic switch Q4 is changed, and the signal of the state change of the fourth electronic switch Q4 is transmitted to the submodule 200; or when the submodule 200 generates an alarm signal, the submodule 200 can change the state of the third electronic switch Q3, and the signal of the state change of the third electronic switch Q3 is transmitted to the second electronic switch Q2 through the bus 300, so that the state of the second electronic switch Q2 is changed, and the signal of the state change of the second electronic switch Q2 is transmitted to the main module 100.

[0042] For example, when an abnormal alarm occurs in the main module 100, the main module 100 will transmit a high-level signal to the first electronic switch Q1 to turn on the first electronic switch Q1. At this time, the first electronic switch Q1 can change the level on the bus 300 to which it is connected to a low level. Since the fourth electronic switch Q4 connected to each sub-module 200 is connected to the bus 300, the low level of the bus 300 can turn off the fourth electronic switch Q4, so that the level input to the sub-module 200 is a high level, so that the sub-module 200 can quickly recognize that there is an alarm signal on the bus 300.

[0043] Correspondingly, when an abnormal alarm occurs in the submodule 200, the submodule 200 will transmit a high-level signal to the first electronic switch Q1 to turn on the third electronic switch Q3. At this time, the third electronic switch Q3 can change the level on the bus 300 to which it is connected to a low level. Since the fourth electronic switch Q4 connected to other submodules 200 is connected to the bus 300, the low level of the bus 300 can turn off the fourth electronic switch Q4, so that the level input to the submodule 200 is a high level, so that other submodules 200 can quickly recognize that there is an alarm signal on the bus 300. At the same time, the second electronic switch Q2 connected to the main module 100 is also connected to the bus 300, so the low level of the bus 300 can turn off the second electronic switch Q2, so that the level input to the main module 100 is a high level, so that the main module 100 can quickly recognize that there is an alarm signal on the bus 300.

[0044] It can be seen that in the laser alarm circuit of the present application, the main module 100 is connected to the first electronic switch Q1 and the second electronic switch Q2, and the first electronic switch Q1 is connected to the second electronic switch Q2, each sub-module 200 is connected to the third electronic switch Q3 and the fourth electronic switch Q4, and the third electronic switch Q3 is connected to the fourth electronic switch Q4, and then the bus 300 is used to connect to the first electronic switch Q1 and the second electronic switch Q2, and the bus 300 is also connected to the third electronic switch Q3 and the fourth electronic switch Q4.

[0045] When the main module 100 generates an alarm signal, the main module 100 can change the state of the first electronic switch Q1, and the signal of the state change of the first electronic switch Q1 is transmitted to the fourth electronic switch Q4 through the bus 300, so that the state of the fourth electronic switch Q4 is changed, and the signal of the state change of the fourth electronic switch Q4 is transmitted to the submodule 200; or when the submodule 200 generates an alarm signal, the submodule 200 can change the state of the third electronic switch Q3, and the signal of the state change of the third electronic switch Q3 is transmitted to the second electronic switch Q2 through the bus 300, so that the state of the second electronic switch Q2 is changed, and the signal of the state change of the second electronic switch Q2 is transmitted to the main module 100.

[0046] That is, when the main module 100 generates an alarm signal, the first electronic switch Q1 can make the bus 300 generate a low level, and then the fourth electronic switch Q4 connected to the submodule 200 can be turned off, so that the level of the bus 300 input to the submodule 200 is a high level, so as to identify the alarm signal. When the submodule 200 generates an alarm signal, the third electronic switch Q3 can make the bus 300 generate a low level, and then the fourth electronic switch Q4 connected to other submodules 200 can be turned off and the second electronic switch Q2 connected to the main module 100 can be turned off, so that the level of the bus 300 input to other submodules 200 and the main module 100 is a high level, so as to identify the alarm signal. The alarm circuit can realize that when the alarm signal is generated by the module itself, the alarm signal can be quickly transmitted to other modules, and the alarm circuit has a simple structure.

[0047] It is understandable that the main module 100 can be connected to the first electronic switch Q1 and the second electronic switch Q2 respectively through the MCU chip in the main module 100 .

[0048] The submodule 200 may also be connected to the third electronic switch Q3 and the fourth electronic switch Q4 respectively through the MCU chip in the submodule 200 .

[0049] Optionally, in some embodiments, the first electronic switch Q1 and the second electronic switch Q2 may be triodes.

[0050] Specifically, the main module 100 is connected to the base of the first electronic switch Q1, the emitter of the first electronic switch Q1 is grounded, the collector of the first electronic switch Q1 is connected to the base of the second electronic switch Q2, the emitter of the second electronic switch Q2 is grounded, and the collector of the second electronic switch Q2 is connected to the main module 100.

[0051] The bus 300 is connected to the collector of the first electronic switch Q1 and the base of the second electronic switch Q2, respectively.

[0052] Furthermore, the collector of the first electronic switch Q1 is also connected to the first power supply, and the collector of the second electronic switch Q2 is also connected to the second power supply.

[0053] A first resistor R1 is connected between the collector of the first electronic switch Q1 and the first power supply, and a second resistor R2 is connected between the collector of the second electronic switch Q2 and the second power supply. The first resistor R1 and the second resistor R2 can be used to divide the voltage.

[0054] Optionally, in some embodiments, the third electronic switch Q3 and the third electronic switch Q3 may be triodes.

[0055] Specifically, the submodule 200 is connected to the base of the third electronic switch Q3, the emitter of the third electronic switch Q3 is grounded, the collector of the third electronic switch Q3 is connected to the base of the fourth electronic switch Q4, the emitter of the fourth electronic switch Q4 is grounded, and the collector of the fourth electronic switch Q4 is connected to the submodule 200.

[0056] The bus 300 is connected to the collector of the third electronic switch Q3 and the base of the fourth electronic switch Q4, respectively.

[0057] Furthermore, the collector of the third electronic switch Q3 is also connected to a third power source, and the collector of the fourth electronic switch Q4 is also connected to a fourth power source.

[0058] A third resistor R3 is connected between the collector of the third electronic switch Q3 and the third power supply, and a fourth resistor R4 is connected between the collector of the fourth electronic switch Q4 and the fourth power supply. The third resistor R3 and the fourth resistor R4 can be used to divide the voltage.

[0059] Optionally, in some embodiments, a fifth resistor R5 may be further provided between the first electronic switch Q1 and the main module 100 , and a sixth resistor R6 may be further provided between the third electronic switch Q3 and the submodule 200 .

[0060] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of some applications should be included in the protection scope of some applications.

Claims

1. A laser alarm circuit, characterized in that: It comprises a bus, a main module and a plurality of sub-modules, wherein the main module and the plurality of sub-modules are connected to the bus; The laser alarm circuit also includes: a first electronic switch, wherein the first electronic switch connects an alarm signal output terminal of the main module and the bus; a second electronic switch, the second electronic switch connecting the alarm signal receiving terminal of the main module and the bus; a plurality of third electronic switches, each of the third electronic switches being connected to an alarm signal output terminal of the submodule and the bus; and A plurality of fourth electronic switches, each of the fourth electronic switches is connected to an alarm signal receiving end of the submodule and the bus; The alarm signal of the main module controls the state of the first electronic switch to change; or the alarm signal of the submodule controls the state of the third electronic switch to change; The bus generates a control signal, and the control signal controls the states of the second electronic switch and the fourth electronic switch to change, so that the alarm signal receiving end of the main module and the alarm signal receiving end of the submodule receive corresponding signals.

2. The laser alarm circuit according to claim 1, characterized in that: The first electronic switch and the second electronic switch are triodes.

3. The laser alarm circuit as claimed in claim 2, characterized in that: The main module is connected to the base of the first electronic switch, the emitter of the first electronic switch is grounded, the collector of the first electronic switch is connected to the base of the second electronic switch, the emitter of the second electronic switch is grounded, and the collector of the second electronic switch is connected to the main module; as well as The bus is connected to the collector of the first electronic switch and the base of the second electronic switch respectively.

4. The laser alarm circuit as claimed in claim 3, characterized in that: The collector of the first electronic switch is also connected to a first power supply, and the collector of the second electronic switch is also connected to a second power supply.

5. The laser alarm circuit as claimed in claim 4, characterized in that: A first resistor is further connected between the collector of the first electronic switch and the first power supply, and a second resistor is further connected between the collector of the second electronic switch and the second power supply.

6. The laser alarm circuit according to claim 1, characterized in that: The third electronic switch and the fourth electronic switch are triodes.

7. The laser alarm circuit according to claim 6, characterized in that: The submodule is connected to the base of the third electronic switch, the emitter of the third electronic switch is grounded, the collector of the third electronic switch is connected to the base of the fourth electronic switch, the emitter of the fourth electronic switch is grounded, and the collector of the fourth electronic switch is connected to the submodule; and The bus is connected to the collector of the third electronic switch and the base of the fourth electronic switch respectively.

8. The laser alarm circuit as claimed in claim 7, characterized in that: The collector of the third electronic switch is further connected to a third power supply, and the collector of the fourth electronic switch is further connected to a fourth power supply.

9. The laser alarm circuit as claimed in claim 8, characterized in that: A third resistor is further connected between the collector of the third electronic switch and the third power supply, and a fourth resistor is further connected between the collector of the fourth electronic switch and the fourth power supply.

10. The laser alarm circuit according to claim 1, characterized in that: A fifth resistor is provided between the first electronic switch and the main module, and a sixth resistor is provided between the third electronic switch and the submodule.

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