Dual galvanometer alarm device, system and method

Abstract

The application discloses a double-vibrating mirror alarm device and system, which comprises an alarm signal processing unit, a power supply unit, a first isolation unit and a second isolation unit. The alarm signal processing unit receives scanning signals of a first vibrating mirror and a second vibrating mirror, processes the scanning signals of the first vibrating mirror and the second vibrating mirror, and outputs an alarm detection signal. The first isolation unit isolates and outputs an alarm signal when the alarm detection signal is enabled. The second isolation unit is used for outputting an alarm signal when the power supply unit stops supplying power. The technical scheme can enable an operator to quickly obtain vibrating mirror alarm information, shorten the processing time after alarm, and improve the operation rate of equipment. The operator can take corresponding measures in time to handle the alarm situation, so as to avoid potential faults or losses.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of galvanometer, in particular to a double-galvanometer alarm device, system and method. BACKGROUND

[0002] The scanning galvanometer in the prior art queries the alarm information through the galvanometer state address in data transmission when the alarm occurs in the processing process, and the alarm information needs to be queried frequently to respond in time, which requires a lot of query time and seriously affects the processing efficiency. SUMMARY

[0003] The embodiment of the present application provides a double-galvanometer alarm device, system and method, which solves the problem that the scanning galvanometer in the prior art needs to query the galvanometer state frequently and the long query time seriously affects the processing efficiency when the alarm occurs in the processing process.

[0004] The first aspect of the embodiment of the present application provides a double-galvanometer alarm device, which comprises:

[0005] An alarm signal processing unit comprising a power supply end, the alarm signal processing unit is used for receiving the scanning signals of the first galvanometer and the second galvanometer, and outputting an alarm detection signal after processing the scanning signals of the first galvanometer and the second galvanometer;

[0006] A power supply unit, the output end of which is connected to the power supply end of the alarm signal processing unit;

[0007] A first isolation unit comprising a first isolation input end and a second isolation input end, the first isolation input end of the first isolation unit is connected to the output end of the power supply unit, the second isolation input end of the first isolation unit is connected to the output end of the alarm signal processing unit, and the first isolation unit is used for outputting an alarm signal when the alarm detection signal is enabled;

[0008] A second isolation unit, the input end of which is connected to the output end of the power supply unit, and the second isolation unit is used for outputting an alarm signal when the power supply unit stops supplying power.

[0009] Preferably, the alarm signal processing unit is used for enabling the alarm detection signal to work the first isolation unit when at least one of the scanning signals of the first galvanometer and the second galvanometer is in an alarm state.

[0010] Preferably, the alarm signal processing unit comprises:

[0011] The first gate circuit includes two input ends, one of the input ends of the first gate circuit is used for receiving a first scanning signal of the first galvanometer, and the other input end of the first gate circuit is used for receiving a second scanning signal of the first galvanometer, and the first gate circuit is used for performing logical operation on the first scanning signal and the second scanning signal and outputting a first processing signal;

[0012] The second gate circuit includes two input ends, one of the input ends of the second gate circuit is used for receiving a third scanning signal of the second galvanometer, and the other input end of the second gate circuit is used for receiving a fourth scanning signal of the first galvanometer, and the second gate circuit is used for performing logical operation on the third scanning signal and the fourth scanning signal and outputting a second processing signal;

[0013] The third gate circuit includes two input ends, one of the input ends of the third gate circuit is used for receiving the first processing signal, and the other input end of the third gate circuit is used for receiving the second processing signal, and the third gate circuit is used for performing logical operation on the first processing signal and the second processing signal and outputting an alarm detection signal.

[0014] Preferably, the first gate circuit, the second gate circuit and the third gate circuit are all AND gate circuits.

[0015] Preferably, the double-galvanometer alarm device further includes:

[0016] The first display unit is connected between the power supply unit and the first isolation unit, and is used for sending an alarm prompt when the alarm detection signal is enabled.

[0017] Preferably, an input end of the first display unit is connected to an output end of the power supply unit, an output end of the first display unit is connected to one of the input ends of the first isolation unit, and the other input end of the first isolation unit is connected to an output end of the alarm signal processing unit.

[0018] When the alarm detection signal is enabled, the power supply unit, the first display unit and the first isolation unit form a series loop, so that the first display unit and the first isolation unit start to work.

[0019] Preferably, the first display unit is a first photodiode, an anode of the first photodiode is the input end of the first display unit, and a cathode of the first photodiode is the output end of the first display unit.

[0020] The first isolation unit is a first optoelectronic coupler, an anode input end of the first optoelectronic coupler is one of the input ends of the first isolation unit, a cathode input end of the first optoelectronic coupler is another input end of the first isolation unit, a collector output end of the first optoelectronic coupler is the output end of the first isolation unit, and an emitter output end of the first optoelectronic coupler is grounded.

[0021] Preferably, the second isolation unit comprises a second optoelectronic coupler and a relay, the relay comprises an electromagnetic coil and a contact switch, an anode input end of the second optoelectronic coupler is connected to the output end of the power supply unit, a cathode input end of the second optoelectronic coupler is grounded, an input end of the electromagnetic coil is connected to the output end of the power supply unit, an output end of the electromagnetic coil is connected to a collector output end of the second optoelectronic coupler, an emitter output end of the second optoelectronic coupler is grounded, an input end of the contact switch is grounded, and an output end of the contact switch is the output end of the second isolation unit.

[0022] Preferably, the power supply unit comprises a fuse (F1), a voltage stabilizing tube (D1), a capacitor (C1), a capacitor (C2), a second light emitting diode (D2), and a resistor (R1), one end of the fuse (F1) forms the input end of the power supply unit, the other end of the fuse (F1) is connected to a cathode of the voltage stabilizing tube (D1), a cathode of the voltage stabilizing tube (D1), one end of the capacitor (C1), an anode of the second light emitting diode (D2), and one end of the capacitor (C2) constitute the output end of the power supply unit, an anode of the voltage stabilizing tube (D1), the other end of the capacitor (C1), a cathode of the second light emitting diode (D2), and the other end of the capacitor (C2) are grounded.

[0023] The second aspect of the embodiment of the present application provides a double galvanometer alarm system, comprising the first galvanometer and the second galvanometer of the double galvanometer alarm device of the first aspect.

[0024] The third aspect of the embodiment of the present application provides a double galvanometer alarm method, the alarm method comprising:

[0025] receiving the scanning signal of the first galvanometer and the scanning signal of the second galvanometer, and obtaining an alarm detection signal according to the scanning signal of the first galvanometer and the scanning signal of the second galvanometer;

[0026] when at least one of the scanning signal of the first galvanometer and the scanning signal of the second galvanometer is in an alarm state, the alarm detection signal is in an enabled state to perform alarm.

[0027] The technical effect of the embodiment of the present application is that the alarm signal processing unit receives and processes the scanning signals of the first galvanometer and the second galvanometer, and combines them into one alarm detection signal, which can effectively reduce the number of IOs required for alarm and the hardware cost. The power supply unit provides power supply for the alarm signal processing unit, the first isolation unit and the second isolation unit, and ensures the normal operation thereof. The first isolation unit plays an isolation role, and isolates the alarm signal processing unit from other related devices, so as to avoid interference and damage of external signals to the alarm signal processing unit. The second isolation unit can still output the alarm signal when the power supply unit stops power supply, and can ensure the stable and reliable transmission of the alarm signal. The technical scheme makes the operator be able to quickly obtain the galvanometer alarm information, shorten the processing time after alarm, and improve the operation rate of the equipment. The operator can take corresponding measures in time to handle the alarm situation, so as to avoid potential failure or loss. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is a structural schematic diagram of a double-galvanometer alarm device provided by the first embodiment of the present application;

[0030] Figure 2 is a structural schematic diagram of a double-galvanometer alarm device provided by the second embodiment of the present application;

[0031] Figure 3 is a circuit diagram of a double-galvanometer alarm device provided by the third embodiment of the present application;

[0032] Figure 4 is a flowchart of a double-galvanometer alarm method provided by the fourth embodiment of the present application;

[0033] In the figure: 101, alarm signal processing unit; 102, power module; 103, first isolation unit; 104, second isolation unit; 105, first display unit. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0035] It is to be understood that the application can assume various alternative embodiments, and should not be limited to the examples described herein. In other words, the examples described herein should be considered in a descriptive sense only and not for purposes of limiting the scope of the application. Descriptions of layers and regions in the examples should not be interpreted as limiting unless otherwise indicated. Identical elements are indicated by identical reference numerals throughout the figures.

[0036] It will be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it can be directly on or connected to the other element or layer or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element or layer, there are no intervening elements or layers present. It will also be understood that, when a term is used in the singular, it can also be used in the plural, and vice versa, unless explicitly stated otherwise.

[0037] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0038] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0039] For a thorough understanding of the present application, reference will be made to the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0040] Example One

[0041] The embodiment one of the present application provides a double galvanometer alarm device, which solves the problem that the scanning galvanometer needs to be frequently inquired and the inquiry time is too long when the alarm occurs in the machining process, which seriously affects the machining efficiency.

[0042] The technical scheme provided by the embodiment one of the present application is shown in Figure 1 The technical scheme provided by the embodiment one of the present application is shown in

[0043] The alarm signal processing unit 101 comprises a power supply end, and is used for receiving the scanning signal of the first galvanometer and the scanning signal of the second galvanometer, and outputting a detection signal after processing the scanning signal of the first galvanometer and the scanning signal of the second galvanometer;

[0044] The power supply unit 102 is connected with the power supply end of the alarm signal processing unit 101;

[0045] The first isolation unit 103 comprises a first isolation input end and a second isolation input end, the first isolation input end of the first isolation unit 103 is connected with the output end of the power supply unit 102, the second isolation input end of the first isolation unit 103 is connected with the output end of the alarm signal processing unit 101, and the first isolation unit 103 is used for outputting an alarm signal when the detection signal is enabled;

[0046] The second isolation unit 104 is connected with the output end of the power supply unit 102, and is used for outputting an alarm signal when the power supply unit 102 stops supplying power.

[0047] The alarm signal processing unit 101 is connected to the first galvanometer and the second galvanometer, and receives the scanning signal of the first galvanometer and the scanning signal of the second galvanometer. The scanning signal of the first galvanometer can include the scanning signal of the X-direction scanning drive plate and the scanning signal of the Y-direction scanning drive plate in the first galvanometer, and the scanning signal of the second galvanometer can include the scanning signal of the X-direction scanning drive plate and the scanning signal of the Y-direction scanning drive plate in the second galvanometer.

[0048] The alarm signal processing unit 101 enables the alarm detection signal when at least one of the scanning signals of the first galvanometer and the second galvanometer is in an alarm state, so as to enable the first isolation unit 103 to work.

[0049] The alarm signal processing unit 101 can monitor the scanning signals of the first galvanometer and the second galvanometer in real time. It can include a sampling circuit or a sensor for obtaining the voltage, current or other related parameters of the scanning signal. The alarm signal processing unit 101 analyzes and compares the received scanning signals. If at least one of the scanning signals is in a preset level state or exceeds a preset threshold or range, it is determined to be in an alarm state. Once the alarm state is detected, the alarm signal processing unit 101 generates an enable signal to notify other components or systems of an alarm event. This enable signal can be a digital signal (such as a logic high level) or an analog signal (such as a specific voltage level). The alarm signal processing unit 101 transmits the generated enable signal to the first isolation unit 103 to start its work.

[0050] As an embodiment, the alarm signal processing unit includes:

[0051] The first gate circuit includes two input terminals. One input terminal of the first gate circuit is used to receive the first scanning signal of the first galvanometer, and the other input terminal of the first gate circuit is used to receive the second scanning signal of the first galvanometer. The first gate circuit is used to perform logical operation on the first scanning signal and the second scanning signal and output a first processing signal;

[0052] The second gate circuit includes two input terminals. One input terminal of the second gate circuit is used to receive the third scanning signal of the second galvanometer, and the other input terminal of the second gate circuit is used to receive the fourth scanning signal of the first galvanometer. The second gate circuit is used to perform logical operation on the third scanning signal and the fourth scanning signal and output a second processing signal;

[0053] The third gate circuit includes two input terminals. One input terminal of the third gate circuit is used to receive the first processing signal, and the other input terminal of the third gate circuit is used to receive the second processing signal. The third gate circuit is used to perform logical operation on the first processing signal and the second processing signal and output an alarm detection signal.

[0054] The first gate circuit, the second gate circuit and the third gate circuit can select different gate circuits according to settings, and preferably, the first gate circuit, the second gate circuit and the third gate circuit are all AND gate circuits.

[0055] The power supply unit 102 supplies power or outputs current for the alarm signal processing unit 101, the first isolation unit 103 and the second isolation unit 104, so as to ensure normal work and stable operation of these units.

[0056] The first isolation unit 103 is connected in isolation between the output end of the power supply unit 102 and the output end of the alarm signal processing unit 101. When the alarm detection signal is enabled, the first isolation unit 103 starts to work according to the power supply of the power supply unit 102 and isolates and outputs the alarm signal. This means that under certain conditions, i.e., when the alarm detection signal meets certain requirements, the power supply unit 102 and the first isolation unit 103 form a loop, and the alarm signal is output only to notify the upper computer to warn the user or relevant personnel of an abnormal situation.

[0057] The second isolation unit 104 is connected to the output end of the power supply unit 102 and is used to output the alarm signal when the power supply unit 102 stops supplying power. This means that when the power supply unit 102 stops supplying power or fails, the second isolation unit 104 will output the alarm signal to notify the upper computer to warn the user or relevant personnel of an abnormal situation.

[0058] The technical effect of the embodiment one of the present application is that the alarm signal processing unit receives and processes the scanning signals of the first galvanometer and the second galvanometer and combines them into an alarm detection signal. This processing method can effectively reduce the number of IOs required for alarm and the hardware cost. The power supply unit provides power supply for the alarm signal processing unit to ensure its normal operation. The first isolation unit plays an isolation role to isolate the alarm signal processing unit from other related devices to avoid interference and damage of external signals to the alarm signal processing unit. The second isolation unit can still output the alarm signal when the power supply unit stops supplying power, which can ensure stable and reliable transmission of the alarm signal. The technical solution enables the operator to quickly obtain the galvanometer alarm information, shortens the processing time after alarm and improves the equipment utilization rate. The operator can take corresponding measures to handle the alarm situation in time to avoid potential failure or loss.

[0059] Example Two

[0060] The embodiment two of the present application provides a double-galvanometer alarm device, which adds a first display unit to display the alarm state on the basis of the embodiment one.

[0061] The technical solution provided by the embodiment two of the present application is based on the technical solution provided by the embodiment one, like Figure 2As shown, the double galvanometer alarm device further comprises:

[0062] The first display unit 105 is connected between the power supply unit 102 and the first isolation unit 103, and is used to issue an alarm prompt when the alarm detection signal is enabled.

[0063] The input end of the first display unit 105 is connected to the output end of the power supply unit 102, the output end of the first display unit 105 is connected to one of the input ends of the first isolation unit 103, and the other input end of the first isolation unit 103 is connected to the output end of the alarm signal processing unit 101; when the detection signal is enabled, the power supply unit 102, the first display unit 105 and the first isolation unit 103 form a series loop, thereby causing the first display unit 105 and the first isolation unit 103 to start working.

[0064] The power supply unit 102 provides the required power supply. The output connection end of the alarm signal processing unit 101 is connected to the second input end of the first isolation unit 103. When the alarm signal processing unit 101 outputs the detection signal, the power supply unit 102, the first display unit 105 and the first isolation unit 103 form a series loop. The first display unit 105 performs alarm display, and the first isolation unit 103 starts working to issue an alarm prompt. The double galvanometer alarm device will issue corresponding alarm prompts according to the scanning signals input by the galvanometer, and provide safety and protection functions.

[0065] The technical effect of the second embodiment is that according to the enabled state of the detection signal, the first display unit issues an alarm prompt, which can timely remind relevant personnel or users to pay attention to possible problems or dangerous situations, thereby enhancing safety and protection. The power supply unit in the device provides the required power supply for other components to ensure their normal operation. At the same time, the first isolation unit plays an isolation role to isolate the alarm signal processing unit from other related equipment to avoid interference and damage. When the alarm detection signal is enabled, the power supply unit, the first display unit and the first isolation unit form a series loop, causing the first display unit and the first isolation unit to start working. This design ensures the reliability of signal transmission and processing, and guarantees the normal operation of the alarm device. The design of the device enables it to timely detect and respond to alarm triggers from the detection signal. By using the alarm signal processing unit, the detection signal can be processed and analyzed to improve the response speed and accuracy of the alarm.

[0066] Example Three

[0067] The third embodiment of the present application provides a double galvanometer alarm device, which is specifically described by a specific circuit for the first embodiment and the second embodiment.

[0068] The technical scheme provided in the third embodiment of the present application is based on the technical scheme provided in the first embodiment, and as shown in Figure 3 The first connector J1 is connected with the first galvanometer, the first connector J1 outputs a 5V voltage source, the first connector J1 outputs an alarm input signal X1 Error and an alarm input signal Y1 Error, the alarm input signal X1 Error corresponds to the X direction scanning drive board of the first galvanometer, and the alarm input signal Y1 Error corresponds to the Y direction scanning drive board of the first galvanometer. When the first galvanometer works normally, the signal input from the connector J1 is high level H; when the first galvanometer abnormally alarms, the signal input from the connector J1 is low level L. The second connector is connected with the second galvanometer, the second connector outputs an alarm input signal X2 Error and an alarm input signal Y2 Error, the alarm input signal X2 Error corresponds to the X direction scanning drive board of the second galvanometer, and the alarm input signal Y2 Error corresponds to the Y direction scanning drive board of the second galvanometer. When the second galvanometer works normally, the signal input from the second connector J2 is high level H; when the second galvanometer abnormally alarms, the signal input from the connector J2 is low level L. The first connector J1 is a 4Pin connector, and the second connector J2 is a 3Pin connector, so that the connection process will not be inserted incorrectly, and the foolproof function is achieved.

[0069] The alarm signal processing unit 101 includes a gate circuit U1B, a gate circuit U1C and a gate circuit U1A. When the gate circuit U1 receives the input signals X1 Error and Y1 Error of the first galvanometer from Pin4 and Pin5, when X1 Error and Y1 Error are both high level H, the Pin6 output of the gate circuit U1B is also high level H, when one of X1 Error and Y1 Error is low level L, the Pin6 output of the gate circuit U1B is also low level L, and the signal is output to the Pin1 of the gate circuit U1A. When the gate circuit U1C receives the input signals X2 Error and Y2 Error of the second galvanometer from Pin9 and Pin10, when X2 Error and Y2 Error are both high level H, the Pin8 output of the gate circuit U1C is also high level H, when one of X2 Error and Y2 Error is low level L, the Pin8 output of the gate circuit U1C is also low level L, and the signal is output to the Pin2 of the gate circuit U1A; when the gate circuit U1A receives signals from Pin1 and Pin2, both of which are high level H, the Pin3 output of the gate circuit U1A is also high level H, when the gate circuit U1A receives signals from Pin1 and Pin2, one of which is low level L, the Pin3 output of the gate circuit U1A is also low level L. The alarm signal processing unit 101 is used to output the signal of Pin3 in the gate circuit U1A to the first isolation unit 103.

[0070] The power supply unit 102 comprises a fuse F1, a voltage stabilizing tube D1, a capacitor C1, a capacitor C2, a second light emitting diode D2 and a resistor R1. One end of the fuse F1 forms an input end of the power supply unit 102, the other end of the fuse F1 is connected to the cathode of the voltage stabilizing tube D1, the cathode of the voltage stabilizing tube D1, one end of the capacitor C1, the anode of the second light emitting diode D2 and one end of the capacitor C2 form an output end of the power supply unit 102, the anode of the voltage stabilizing tube D1, the other end of the capacitor C1, the cathode of the second light emitting diode D2 and the other end of the capacitor C2 are connected to the ground.

[0071] The power supply unit 102 inputs the power supply from the first galvanometer through the first connector J1, performs overcurrent protection through the fuse F1, performs voltage stabilization through the voltage stabilizing diode D1, performs filtering through the capacitor C1, and then supplies power to the galvanometer alarm device; the resistor R1 limits the current through the second light emitting diode D2, the second light emitting diode D2 is lit to display power supply when the power supply is normal, the capacitor C2 performs power supply filtering before supplying power to the gate circuit U1, and the capacitor C3 performs power supply filtering before supplying power to the relay KA1.

[0072] The first display unit 105 is a first photodiode, the anode of the first photodiode is an input end of the first display unit 105, and the cathode of the first photodiode is an output end of the first display unit 105. The first isolation unit 103 is a first optocoupler, the anode input end of the first optocoupler is one of the input ends of the first isolation unit 103, the cathode input end of the first optocoupler is the other input end of the first isolation unit 103, the collector output end of the first optocoupler is the output end of the first isolation unit 103, and the emitter output end of the first optocoupler is grounded.

[0073] The first optocoupler is an optocoupler U3, and the first photodiode is a red light emitting diode D3. The anode input end Pin1 of the optocoupler U3 is connected to a current limiting resistor R2, the other end of the current limiting resistor R2 is connected to the cathode of the red light emitting diode D3, and the anode of the red light emitting diode D3 is connected to the output end of the power supply unit 102. When the galvanometer works normally, the Pin2 of the optocoupler U3 receives a high level H signal, at this time, the input end of the optocoupler U3 is not conductive, the red light emitting diode D3 does not work, and the collector output end Pin4 of the optocoupler U3 outputs a high level H under the action of the pull-up resistor R4. When the galvanometer fails and alarms, the cathode input end Pin2 of the optocoupler U3 receives a low level L signal, at this time, the input end of the optocoupler U3 is conductive, the red light emitting diode D3 is lit to perform alarm display, and the collector output end Pin4 of the optocoupler U3 outputs a low level L.

[0074] Further, the second isolation unit 104 includes a second optocoupler and a relay, the relay including an electromagnetic coil and a contact switch, an anode input end of the second optocoupler being connected to an output end of the power supply unit 102, a cathode input end of the second optocoupler being grounded, an input end of the electromagnetic coil being connected to the output end of the power supply unit 102, an output end of the electromagnetic coil being connected to a collector output end of the second optocoupler, an emitter output end of the second optocoupler being grounded, an input end of the contact switch being grounded, and an output end of the contact switch being an output end of the second isolation unit 104.

[0075] The second optocoupler is an optocoupler U2, the relay includes an electromagnetic coil KA1 and a contact switch KA2, and an anode input end Pin1 of the optocoupler U2 is connected to a current-limiting resistor R3. When the power supply of the galvanometer and the fuse F1 are working normally, the 5V power supply input to the dual-galvanometer alarm device from the galvanometer is also normal, current flows from the resistor R3 through the optocoupler U2, the input end of the optocoupler U2 is turned on, and the output end of the optocoupler U2 is further driven to be turned on. At this time, the electromagnetic coil KA1 is powered on and starts to work, the normally closed contact of the contact switch KA2 is opened, and the output state of the optocoupler U3 is maintained as it is. When the power supply of the galvanometer is interrupted or the fuse F1 is abnormally working, the power supply of the dual-galvanometer alarm device is interrupted, the input end of the optocoupler U2 does not work, and the output end of the optocoupler U2 is disconnected. At this time, the electromagnetic coil KA1 is powered off and does not work, the normally closed contact of the contact switch KA2 is closed, and the output signal of the optocoupler U3 is a low level L.

[0076] The host computer receives a low level L alarm signal input to the host computer from the dual-galvanometer alarm device, and immediately stops working to wait for troubleshooting.

[0077] The technical effect of the embodiment three of the present application is that: by using the photoelectric coupler U3 and the photoelectric coupler U2, the photoelectric isolation of the internal circuit of the galvanometer alarm device is realized. The input end of the photoelectric coupler U3 receives the high level or low level signal according to the working state of the galvanometer, so as to control the working state of the red light emitting diode and provide visual alarm display. The photoelectric coupler U2 is used to detect the normal working state of the galvanometer power supply and the fuse. When the galvanometer works normally, the output end Pin4 of the photoelectric coupler U3 keeps high level, indicating no fault alarm. When the galvanometer appears fault alarm, the output end Pin4 of the photoelectric coupler U3 outputs low level, triggering the red light emitting diode to light for alarm display. After receiving the low level alarm signal, the upper computer stops working immediately and waits for fault troubleshooting, which improves the efficiency of fault detection and response. By limiting the current of the photoelectric couplers U3 and U2 through the current limiting resistors R2 and R3, the normal work of the photoelectric couplers U3 and U2 is ensured. In addition, the working state of the relay is affected by the galvanometer power supply and the fuse state. When the power supply is interrupted or the fuse is abnormal, the electromagnetic coil of the relay does not work, the output signal of the photoelectric coupler U3 is low level, and the monitoring and alarm function of the galvanometer power supply abnormality is provided.

[0078] Example Four

[0079] The embodiment four of the present application provides a double galvanometer alarm system, which comprises the double galvanometer alarm device, the first galvanometer and the second galvanometer in the embodiment one to three, the alarm signal processing unit is connected with the first galvanometer and the second galvanometer respectively, and the first galvanometer and the second galvanometer send the scanning signals to the double galvanometer alarm device.

[0080] Example Five

[0081] The embodiment five of the present application provides a double galvanometer alarm method, as shown in the figure, the alarm method comprises the steps of: Figure 4

[0082] Step S101. Receiving the scanning signal of the first galvanometer and the scanning signal of the second galvanometer, and obtaining the alarm detection signal according to the scanning signal of the first galvanometer and the scanning signal of the second galvanometer.

[0083] Step S102. When at least one of the scanning signal of the first galvanometer and the scanning signal of the second galvanometer is in the alarm state, the alarm detection signal is in the enabled state to alarm.

[0084] ​The execution module of the alarm method monitors the scanning signals of the first galvanometer and the second galvanometer in real time, which can be obtained by sampling circuit or sensor to obtain the voltage, current or other related parameters of the scanning signals. The received scanning signals are analyzed and compared, and if at least one of the scanning signals is in a preset level state or exceeds a preset threshold or range, it is determined as an alarm state. Once the alarm state is detected, an enable signal is generated to notify other components or systems of the alarm event. The enable signal can be a digital signal (such as a logic high level) or an analog signal (such as a specific voltage level), and the generated enable signal is transmitted to the alarm unit to generate an alarm.

[0085] As a specific embodiment, the alarm device provided in the above embodiments 1-2 can be used, and the module for executing the double-galvanometer alarm method can be the alarm signal processing unit in the above embodiments.

[0086] The technical effect of the fifth embodiment of the present application is that the scanning signals of the first galvanometer and the second galvanometer are received and processed, and they are combined into one alarm detection signal, which can effectively reduce the number of IOs required for alarm and hardware cost. The technical solution enables the operator to quickly obtain the galvanometer alarm information, shorten the processing time after alarm, and improve the utilization rate of the equipment. The operator can take corresponding measures to handle the alarm situation in time to avoid potential failure or loss.

[0087] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A dual galvanometer alarm device, characterized by, The application relates to a double-vibrating-mirror alarm device. The alarm signal processing unit comprises: The first gate circuit comprises two input ends, one input end of the first gate circuit is used for receiving a first scanning signal of the first vibrating mirror, the other input end of the first gate circuit is used for receiving a second scanning signal of the first vibrating mirror, and the first gate circuit is used for performing logic operation on the first scanning signal and the second scanning signal to output a first processing signal; The second gate circuit comprises two input ends, one input end of the second gate circuit is used for receiving a third scanning signal of the second vibrating mirror, the other input end of the second gate circuit is used for receiving a fourth scanning signal of the first vibrating mirror, and the second gate circuit is used for performing logic operation on the third scanning signal and the fourth scanning signal to output a second processing signal; The third gate circuit comprises two input ends, one input end of the third gate circuit is used for receiving the first processing signal, the other input end of the third gate circuit is used for receiving the second processing signal, and the third gate circuit is used for performing logic operation on the first processing signal and the second processing signal to output an alarm detection signal.

2. The dual galvanometer alarm device of claim 1, wherein, The first gate circuit, the second gate circuit and the third gate circuit are all AND gate circuits. The double-vibrating-mirror alarm device further comprises: The first display unit is connected between the power supply unit and the first isolation unit, and is used for issuing an alarm prompt when the alarm detection signal is enabled. The input end of the first display unit is connected with the output end of the power supply unit, the output end of the first display unit is connected with one of the input ends of the first isolation unit, and the other input end of the first isolation unit is connected with the output end of the alarm signal processing unit; 3. The dual galvanometer alarm device of claim 2, wherein, When the alarm detection signal is enabled, the power supply unit, the first display unit and the first isolation unit form a series loop, so that the first display unit and the first isolation unit start to work.

4. The dual galvanometer alarm device of claim 1, wherein, The first display unit is a first photodiode, the anode of the first photodiode is the input end of the first display unit, and the cathode of the first photodiode is the output end of the first display unit. ​ 5. The dual galvanometer alarm device of claim 4, wherein, ​ ​ 6. The dual galvanometer alarm device of claim 5, wherein, ​ The first isolation unit is a first optoelectronic coupler, an anode input end of the first optoelectronic coupler is one of the input ends of the first isolation unit, a cathode input end of the first optoelectronic coupler is another input end of the first isolation unit, a collector output end of the first optoelectronic coupler is the output end of the first isolation unit, and an emitter output end of the first optoelectronic coupler is grounded.

7. The dual galvanometer alarm device of claim 1, wherein, The second isolation unit comprises a second optoelectronic coupler and a relay, the relay comprises an electromagnetic coil and a contact switch, an anode input end of the second optoelectronic coupler is connected to the output end of the power supply unit, a cathode input end of the second optoelectronic coupler is grounded, an input end of the electromagnetic coil is connected to the output end of the power supply unit, an output end of the electromagnetic coil is connected to a collector output end of the second optoelectronic coupler, an emitter output end of the second optoelectronic coupler is grounded, an input end of the contact switch is grounded, and an output end of the contact switch is the output end of the second isolation unit.

8. The dual galvanometer alarm device of claim 1, wherein, The power supply unit comprises a fuse (F1), a voltage stabilizing tube (D1), a capacitor (C1), a capacitor (C2), a second light emitting diode (D2), and a resistor (R1), one end of the fuse (F1) forms an input end of the power supply unit, the other end of the fuse (F1) is connected to a cathode of the voltage stabilizing tube (D1), a cathode of the voltage stabilizing tube (D1), one end of the capacitor (C1), an anode of the second light emitting diode (D2), and one end of the capacitor (C2) form an output end of the power supply unit, an anode of the voltage stabilizing tube (D1), the other end of the capacitor (C1), a cathode of the second light emitting diode (D2), and the other end of the capacitor (C2) are grounded.

9. A dual galvanometer alarm system, characterized by, The alarm device comprises the first mirror and the second mirror, and the alarm signal processing unit is connected to the first mirror and the second mirror.

10. A dual galvanometer alerting method, characterized by, The alarm method comprises: receiving a scanning signal of the first mirror and a scanning signal of the second mirror, and obtaining an alarm detection signal according to the scanning signal of the first mirror and the scanning signal of the second mirror; when at least one of the scanning signal of the first mirror and the scanning signal of the second mirror is in an alarm state, the alarm detection signal is in an enabled state to perform alarm.

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