Remote monitoring control circuit of commercial electric appliance circuit board
By designing a remote monitoring and control circuit for commercial electrical circuit boards and utilizing power control and power failure detection modules to provide auxiliary power, the problem of remote monitoring devices failing to function during power failures was solved. This enabled continuous monitoring and communication of power changes, ensuring the continuity and accuracy of monitoring.
Patent Information
- Application Number
- CN202520192895.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-07
AI Technical Summary
When existing commercial electrical circuit boards lose power, remote monitoring devices cannot continue to monitor changes in electrical energy, leading to false starts and inaccurate detection of power outages.
A remote monitoring and control circuit for a commercial appliance circuit board was designed, including a power control module, a switch detection module, a power failure detection module, an auxiliary power supply module, and a remote monitoring module. By detecting the power switch status and power failure, the auxiliary power supply module provides power to the remote monitoring module, ensuring that power changes can still be monitored and communication with the monitoring terminal can continue even when power is lost.
It enables continuous monitoring of the power status of commercial appliance circuit boards even in the event of a power outage, and timely notification to the monitoring terminal, thus avoiding accidental activation of the remote monitoring device and ensuring the continuity and accuracy of monitoring.
Smart Images
Figure CN223883924U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to commercial electric appliance circuit board technical field, concretely is a kind of remote monitoring control circuit of commercial electric appliance circuit board. BACKGROUND
[0002] Commercial electric appliance circuit board is a kind of substrate for connecting and supporting electronic components, which contains various electronic components, each component has its specific function, so that commercial electric appliance circuit board can realize specific function, in order to realize remote monitoring of commercial electric appliance circuit board, remote monitoring circuit of remote monitoring device in prior art is used in commercial electric appliance circuit board, real-time monitoring the working state of commercial electric appliance circuit board, remote monitoring device will be started and closed simultaneously with commercial electric appliance circuit board, in turn lead to when power failure occurs, remote monitoring device will not continue to monitor commercial electric appliance circuit board, cannot transmit the power change state of commercial electric appliance circuit board to monitoring terminal when power failure, and because the power failure state cannot be accurately detected, it will lead to misstart of remote monitoring device, therefore there is to be improved. SUMMARY
[0003] The utility model embodiment provides a kind of remote monitoring control circuit of commercial electric appliance circuit board, to solve the problem raised in above background technique.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A kind of remote monitoring control circuit of commercial electric appliance circuit board, comprising: power control module, switch detection module, power failure detection module, auxiliary power supply module, commercial electric appliance circuit board module and remote monitoring module;
[0006] Power control module, with the remote monitoring module, commercial electric appliance circuit board module and switch detection module are connected, for accessing commercial power and carrying out step-down and rectification to commercial power, output first electric energy, first electric energy is transmitted to remote monitoring module, commercial electric appliance circuit board module and switch detection module by switch;
[0007] Switch detection module, for detecting the closing and opening state of switch in power control module and outputting first control signal when power control module stops power supply for remote monitoring module and commercial electric appliance circuit board module;
[0008] Power failure detection module, with the power control module and switch detection module are connected, for receiving first electric energy and outputting second control signal and self-locking third control signal when stopping receiving first electric energy, stop self-locking work when receiving first control signal;
[0009] The auxiliary power supply module is connected with the power failure detection module and the remote monitoring module, and is used for providing auxiliary power, and outputting a fourth control signal and transmitting the auxiliary power to the remote monitoring module when the second control signal and the third control signal are received.
[0010] The commercial electric appliance circuit board module is used for voltage stabilizing treatment of the first power and power supply for the commercial electric appliance circuit board.
[0011] The remote monitoring module is connected with the commercial electric appliance circuit board module, and is used for voltage stabilizing and regulating treatment of the first power or the auxiliary power and power supply for the remote monitoring device, monitoring of the working state of the commercial circuit board, and receiving of the fourth control signal and wireless remote communication with the monitoring terminal.
[0012] As a further scheme of the utility model: the power supply control module includes a power interface, a first transformer, a first rectifier and a first control switch; the switch detection module includes a second power supply, a seventh resistor and an eighth resistor;
[0013] Preferably, the first end and the second end of the power interface are connected with the first end and the second end of the primary side of the first transformer respectively, the first end and the second end of the secondary side of the first transformer are connected with the first end and the second end of the first rectifier respectively, the third end of the first rectifier is connected with the first static end of the first control switch, the first dynamic end of the first control switch is connected with the remote monitoring module, the commercial electric appliance circuit board module and the power failure detection module, the second static end of the first control switch is connected with the second power supply, the second dynamic end of the first control switch is connected with the first end of the eighth resistor through the seventh resistor, and the second end of the eighth resistor is connected with the fourth end and the ground end of the first rectifier.
[0014] As a further scheme of the utility model: the commercial electric appliance circuit board module includes a first capacitor, a first voltage stabilizer, a second capacitor and a commercial electric appliance circuit board;
[0015] Preferably, one end of the first capacitor is connected with the first dynamic end of the first control switch and the second end of the first voltage stabilizer, the third end of the first voltage stabilizer is connected with the power supply end of the commercial electric appliance circuit board and is connected with the other end of the first capacitor, the first end of the first voltage stabilizer, the ground end of the commercial electric appliance circuit board and the fourth end of the first rectifier through the second capacitor, and the to-be-monitored end of the commercial electric appliance circuit board is connected with the remote monitoring module.
[0016] As a further scheme of the utility model: the remote monitoring module includes a second diode, a second voltage stabilizer, a third capacitor and a remote monitoring device;
[0017] Preferably, the anode of the second diode is connected to the first movable terminal of the first control switch, the cathode of the second diode is connected to the second terminal of the second voltage stabilizer, the third terminal of the second voltage stabilizer is connected to the power terminal of the remote monitoring device and the first terminal of the second voltage stabilizer, the ground terminal of the remote monitoring device and the fourth terminal of the first rectifier are connected through the third capacitor, the monitoring terminal of the remote monitoring device is connected to the to-be-monitored terminal of the commercial electric appliance circuit board, and the receiving terminal of the remote monitoring device is connected to the auxiliary power supply module.
[0018] As a further scheme of the utility model: the power failure detection module includes first power supply, first resistance, first optocoupler, third resistance, second resistance, first switch tube, first diode, fourth resistance, second switch tube, third switch tube and fifth resistance;
[0019] Preferably, the first end of the first optocoupler is connected to the first movable terminal of the first control switch, the second end of the first optocoupler is connected to the fourth terminal of the first rectifier, the third end of the first optocoupler is connected to one end of the second resistance and connected to the first power supply, the collector of the first switch tube and the collector of the second switch tube through the first resistance, the other end of the second resistance is connected to the base of the first switch tube, the emitter of the first switch tube is connected to the auxiliary power supply module and connected to one end of the third resistance, the emitter of the third switch tube and the ground terminal through the fourth resistance, the fourth end of the first optocoupler is connected to the anode of the first diode and the other end of the third resistance, the cathode of the first diode is connected to the collector of the third switch tube and the emitter of the second switch tube and connected to the base of the second switch tube through the fifth resistance.
[0020] As a further scheme of the utility model: the auxiliary power supply module includes first logic chip, first power tube, first battery and sixth resistance;
[0021] Preferably, the A end and B end of the first logic chip are connected to the emitter of the first switch tube and the cathode of the first diode respectively, the Y end of the first logic chip is connected to the gate of the first power tube and connected to the receiving terminal of the remote monitoring device through the sixth resistance, the drain of the first power tube is connected to the positive pole of the first battery, the negative pole of the first battery is grounded, and the source of the first power tube is connected to the second terminal of the second voltage stabilizer.
[0022] Compared with the prior art, the remote monitoring control circuit of the commercial appliance circuit board has the advantages that the remote monitoring control circuit of the commercial appliance circuit board can be powered by the power supply control module for the commercial appliance circuit board module and the remote monitoring module, meets the working power required by the commercial appliance circuit board and the remote monitoring device, detects the open state of the switch in the power supply control module by the switch detection module, and during the power supply period of the power supply control module for the commercial appliance circuit board module and the remote monitoring module, if the power failure detection module detects power failure of the power supply control module, the auxiliary power supply module will provide power for the remote monitoring module, maintains the power change monitoring of the remote monitoring module on the commercial appliance circuit board module during power failure and the communication work with the monitoring terminal, and if the switch in the power supply control module is normally opened, the work will be stopped, and the condition that the auxiliary power supply module supplies power as long as the power fails is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced as follows. 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.
[0024] Figure 1 A principle block diagram of the remote monitoring control circuit of the commercial appliance circuit board is provided for the embodiments of the present application.
[0025] Figure 2 A circuit diagram of the remote monitoring control circuit of the commercial appliance circuit board is provided for the embodiments of the present application.
[0026] Figure 3 A connection circuit diagram of the auxiliary power supply module is provided for the embodiments of the present application. DETAILED DESCRIPTION
[0027] The technical scheme 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, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.
[0028] In one embodiment, referring to Figure 1 , a remote monitoring control circuit of a commercial appliance circuit board, comprising: a power supply control module 1, a switch detection module 2, a power failure detection module 3, an auxiliary power supply module 4, a commercial appliance circuit board module 5 and a remote monitoring module 6;
[0029] Specifically, the power control module 1 is connected with the remote monitoring module 6, the commercial appliance circuit board module 5 and the switch detection module 2, for accessing the commercial power and performing the voltage reduction and rectification on the commercial power, outputting the first electric energy, and transmitting the first electric energy to the remote monitoring module 6, the commercial appliance circuit board module 5 and the switch detection module 2 through the switch;
[0030] The switch detection module 2 is used for detecting the closing and opening states of the switch in the power control module 1 and outputting the first control signal when the power control module 1 stops supplying power to the remote monitoring module 6 and the commercial appliance circuit board module 5.
[0031] The power failure detection module 3 is connected with the power control module 1 and the switch detection module 2, for receiving the first electric energy and outputting the second control signal and the third control signal when the receiving of the first electric energy is stopped, and stopping the self-locking work when the first control signal is received.
[0032] The auxiliary power supply module 4 is connected with the power failure detection module 3 and the remote monitoring module 6, for providing the auxiliary electric energy, outputting the fourth control signal and transmitting the auxiliary electric energy to the remote monitoring module 6 when the second control signal and the third control signal are received.
[0033] The commercial appliance circuit board module 5 is used for performing the voltage stabilization on the first electric energy and supplying power to the commercial appliance circuit board.
[0034] The remote monitoring module 6 is connected with the commercial appliance circuit board module 5, for performing the voltage stabilization and adjustment on the first electric energy or the auxiliary electric energy and supplying power to the remote monitoring device, monitoring the working state of the commercial circuit board, receiving the fourth control signal and performing the wireless remote communication with the monitoring terminal.
[0035] In specific embodiments, the power control module 1 described above can adopt a power control circuit composed of a power interface, a transformer, a rectifier, a control switch, etc., can be connected to the mains, and can perform voltage reduction and rectification processing on the mains, and can manually control the transmission state of electric energy by closing or opening the state of the control switch; the switch detection module 2 described above can adopt a switch detection circuit composed of a voltage stabilizer and a resistor, can detect the closing or opening state of the switch detection module 2, and can provide a high-level signal when the control switch is opened, i.e., when the power control module 1 stops supplying power to the commercial appliance circuit board module 5 and the remote monitoring module 6; the power failure detection module 3 described above can adopt a power failure detection circuit composed of an optoelectronic coupler, a resistor, and a transistor, can perform power supply detection on the power control module 1, and can output a second control signal and a self-locking third control signal when a power failure occurs, which can be controlled and stopped from self-locking by the switch detection module 2; the auxiliary power supply module 4 described above can adopt an auxiliary power supply circuit composed of a field effect transistor, a battery, and a logic chip, can provide auxiliary electric energy and a fourth control signal, i.e., a power failure signal, when a power failure occurs; the commercial appliance circuit board module 5 described above can adopt a commercial appliance circuit board circuit composed of a voltage stabilizer, a capacitor, and a commercial appliance circuit board, can perform voltage stabilization processing on the input electric energy and supply power to the commercial appliance circuit board; the remote monitoring module 6 described above can adopt a remote monitoring circuit composed of a diode, a voltage stabilizer, and a remote monitoring device, can perform voltage stabilization processing on the input electric energy and supply power to the remote monitoring device, and can perform working state monitoring on the commercial appliance circuit board and wireless communication with the monitoring terminal by the remote monitoring device.
[0036] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the power control module 1 includes a power interface, a first transformer B1, a first rectifier T1, and a first control switch S1; the switch detection module 2 includes a second power supply VCC2, a seventh resistor R7, and an eighth resistor R8;
[0037] Specifically, the first end and the second end of the power interface are connected to the first end and the second end of the primary side of the first transformer B1, the first end and the second end of the secondary side of the first transformer B1 are connected to the first end and the second end of the first rectifier T1, the third end of the first rectifier T1 is connected to the first static end of the first control switch S1, the first control switch S1 is connected to the remote monitoring module 6, the commercial appliance circuit board module 5, and the power failure detection module 3, the second static end of the first control switch S1 is connected to the second power supply VCC2, the second dynamic end of the first control switch S1 is connected to the first end of the eighth resistor R8 through the seventh resistor R7, and the second end of the eighth resistor R8 is connected to the fourth end and the ground end of the first rectifier T1.
[0038] In specific embodiments, the first control switch S1 can be composed of a double-pole double-throw switch, wherein the first static end and the first moving end of the first control switch S1 are normally open switches, and the second static end and the second moving end of the first control switch S1 are normally closed switches; the seventh resistor R7 and the eighth resistor R8 perform voltage division processing.
[0039] Further, the commercial appliance circuit board module 5 includes a first capacitor C1, a first voltage regulator IC1, a second capacitor C2, and a commercial appliance circuit board;
[0040] Specifically, one end of the first capacitor C1 is connected to the first moving end of the first control switch S1 and the second end of the first voltage regulator IC1, the third end of the first voltage regulator IC1 is connected to the power supply end of the commercial appliance circuit board and connects the other end of the first capacitor C1, the first end of the first voltage regulator IC1, the ground end of the commercial appliance circuit board, and the fourth end of the first rectifier T1 through the second capacitor C2, and the to-be-monitored end of the commercial appliance circuit board is connected to the remote monitoring module 6.
[0041] In specific embodiments, the first voltage regulator IC1 can be an LM317 voltage regulator.
[0042] Further, the remote monitoring module 6 includes a second diode D2, a second voltage regulator IC2, a third capacitor C3, and a remote monitoring device;
[0043] Specifically, the anode of the second diode D2 is connected to the first moving end of the first control switch S1, the cathode of the second diode D2 is connected to the second end of the second voltage regulator IC2, the third end of the second voltage regulator IC2 is connected to the power supply end of the remote monitoring device and connects the first end of the second voltage regulator IC2, the ground end of the remote monitoring device, and the fourth end of the first rectifier T1 through the third capacitor C3, the monitoring end of the remote monitoring device is connected to the to-be-monitored end of the commercial appliance circuit board, and the receiving end of the remote monitoring device is connected to the auxiliary power supply module 4.
[0044] In specific embodiments, the second voltage regulator IC2 can be an LM317 voltage regulator; and the remote monitoring device can be composed of a voltage monitoring device, a current monitoring device, and a WiFi communication device.
[0045] Further, the power failure detection module 3 includes a first power supply VCC1, a first resistor R1, a first optocoupler U1, a third resistor R3, a second resistor R2, a first switch tube V1, a first diode D1, a fourth resistor R4, a second switch tube V2, a third switch tube V3, and a fifth resistor R5;
[0046] Specifically, the first end of the first optical coupling U1 is connected to the first active end of the first control switch S1, the second end of the first optical coupling U1 is connected to the fourth end of the first rectifier T1, the third end of the first optical coupling U1 is connected to one end of the second resistor R2 and is connected to the first power supply VCC1, the collector of the first switch tube V1 and the collector of the second switch tube V2 through the first resistor R1, the other end of the second resistor R2 is connected to the base of the first switch tube V1, the emitter of the first switch tube V1 is connected to the auxiliary power supply module 4 and is connected to one end of the third resistor R3, the emitter of the third switch tube V3 and the ground end through the fourth resistor R4, the fourth end of the first optical coupling U1 is connected to the anode of the first diode D1 and the other end of the third resistor R3, the cathode of the first diode D1 is connected to the collector of the third switch tube V3 and the emitter of the second switch tube V2 and is connected to the base of the second switch tube V2 through the fifth resistor R5.
[0047] In specific embodiments, the first optical coupling U1 described above can be selected as PC817 photoelectric coupler; the first switch tube V1, the second switch tube V2 and the third switch tube V3 can all be selected as NPN type triode, wherein the first power supply VCC1 cannot trigger the first switch tube V1 to conduct after being divided by the first resistor R1, the first optical coupling U1 and the third resistor R3, the first power supply VCC1 can trigger the first switch tube V1 to conduct through the first resistor R1 and the second resistor R2, the second switch tube V2 can be controlled to be self-locked, and the third switch tube V3 can be controlled to be self-locked and reset.
[0048] Further, the auxiliary power supply module 4 includes a first logic chip J1, a first power tube Q1, a first battery BT1 and a sixth resistor R6.
[0049] Specifically, the A end and the B end of the first logic chip J1 are respectively connected to the emitter of the first switch tube V1 and the cathode of the first diode D1, the Y end of the first logic chip J1 is connected to the gate of the first power tube Q1 and is connected to the receiving end of the remote monitoring device through the sixth resistor R6, the drain of the first power tube Q1 is connected to the positive electrode of the first battery BT1, the negative electrode of the first battery BT1 is grounded, and the source of the first power tube Q1 is connected to the second end of the second voltage stabilizer IC2.
[0050] In specific embodiments, the first logic chip J1 described above can be selected as an AND gate chip; the first power tube Q1 described above can be selected as an N-channel field effect tube; and the first battery BT1 described above can be selected as a lithium battery.
[0051] The remote monitoring control circuit of the commercial electric appliance circuit board in the embodiment is connected with the commercial power through the power interface, the first transformer B1 and the first rectifier T1 perform the voltage reduction and rectification processing, and output the first electric energy, when the first static end and the first dynamic end of the first control switch S1 are closed, the second static end and the second dynamic end of the first control switch S1 are disconnected, the first electric energy is transmitted to the first voltage stabilizer IC1 and the second voltage stabilizer IC2 through the first static end and the first dynamic end of the first control switch S1, and after the voltage stabilizing, the commercial electric appliance circuit board and the remote monitoring device are powered respectively, the monitoring end of the remote monitoring device detects the voltage or current state of the to-be-monitored end of the commercial electric appliance circuit board, and transmits the monitored data to the monitoring terminal wirelessly, meanwhile, the first optocoupler U1 is turned on, and the first power supply VCC1, the first resistor R1, the third resistor R3, the first diode D1, the fifth resistor R5 and the two switching tubes are used for self-locking and outputting the third control signal, at this time, if power failure occurs, the first optocoupler U1 will be cut off, the first power supply VCC1 triggers the first switching tube V1 to be turned on through the first resistor R1 and the second resistor R2, and the second control signal is output, so as to avoid the condition that the auxiliary power supply is performed as long as the power failure occurs, at this time, the Y end of the first logic chip J1 will output the fourth control signal, the first power tube Q1 is turned on, the first battery BT1 supplies power for the second voltage stabilizer IC2, and the working state of the remote monitoring device is maintained, meanwhile, the receiving end of the remote monitoring device receives the fourth control signal, so as to wirelessly notify the monitoring terminal that the commercial electric appliance circuit board has power failure, if the first static end and the first dynamic end of the first control switch S1 are disconnected at this time, the second power supply VCC2 will be transmitted to the seventh resistor R7 through the second dynamic end and the second static end of the first control switch S1, and after being divided by the seventh resistor R7 and the eighth resistor R8, the third switching tube V3 is triggered to be turned on, the potential of the B end of the first logic chip J1 is pulled down, it is indicated that the artificial power failure control does not occur at this time, and the first battery BT1 will not supply power.
[0052] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0053] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.
Claims
1. A remote monitoring control circuit for a commercial appliance circuit board, characterized in that, the remote monitoring control circuit for the commercial appliance circuit board comprises a power supply control module, a switch detection module, a power failure detection module, an auxiliary power supply module, a commercial appliance circuit board module and a remote monitoring module; the power supply control module is connected with the remote monitoring module, the commercial appliance circuit board module and the switch detection module, is used for accessing the mains and performing voltage reduction and rectification on the mains, outputs first electric energy, and transmits the first electric energy to the remote monitoring module, the commercial appliance circuit board module and the switch detection module through a switch; the switch detection module is used for detecting the closing and opening states of the switch in the power supply control module and outputting a first control signal when the power supply control module stops supplying power to the remote monitoring module and the commercial appliance circuit board module; the power failure detection module is connected with the power supply control module and the switch detection module, is used for receiving the first electric energy and outputting a second control signal and a third control signal when the reception of the first electric energy is stopped, and stopping the self-locking work when the first control signal is received; the auxiliary power supply module is connected with the power failure detection module and the remote monitoring module, is used for providing auxiliary electric energy, and outputs a fourth control signal and transmits the auxiliary electric energy to the remote monitoring module when the second control signal and the third control signal are received; the commercial appliance circuit board module is used for performing voltage stabilization on the first electric energy and supplying power to the commercial appliance circuit board; the remote monitoring module is connected with the commercial appliance circuit board module, is used for performing voltage stabilization and adjustment on the first electric energy or the auxiliary electric energy and supplying power to a remote monitoring device, monitoring the working state of the commercial circuit board, receiving the fourth control signal and performing wireless remote communication with a monitoring terminal.
2. The remote monitoring control circuit for a circuit board of a commercial electric appliance according to claim 1, wherein the power supply control module comprises a power supply interface, a first transformer, a first rectifier and a first control switch; the switch detection module comprises a second power supply, a seventh resistor and an eighth resistor; the first end and the second end of the power supply interface are connected with the first end and the second end of the primary side of the first transformer respectively, the first end and the second end of the secondary side of the first transformer are connected with the first end and the second end of the first rectifier respectively, the third end of the first rectifier is connected with the first static end of the first control switch, the first dynamic end of the first control switch is connected with the remote monitoring module, the commercial appliance circuit board module and the power failure detection module, the second static end of the first control switch is connected with the second power supply, the second dynamic end of the first control switch is connected with the first end of the eighth resistor through the seventh resistor, and the second end of the eighth resistor is connected with the fourth end and the ground end of the first rectifier.
3. The remote monitoring control circuit for a circuit board of a commercial electric appliance according to claim 2, wherein the commercial appliance circuit board module comprises a first capacitor, a first voltage stabilizer, a second capacitor and a commercial appliance circuit board; one end of the first capacitor is connected with the first dynamic end of the first control switch and the second end of the first voltage stabilizer, the third end of the first voltage stabilizer is connected with the power supply end of the commercial appliance circuit board and is connected with the other end of the first capacitor, the first end of the first voltage stabilizer, the ground end of the commercial appliance circuit board and the fourth end of the first rectifier through the second capacitor, and the to-be-monitored end of the commercial appliance circuit board is connected with the remote monitoring module.
4. The remote monitoring control circuit for a circuit board of a commercial electric appliance according to claim 3, wherein The remote monitoring module comprises a second diode, a second voltage stabilizer, a third capacitor and a remote monitoring device; The anode of the second diode is connected to the first moving terminal of the first control switch, the cathode of the second diode is connected to the second terminal of the second voltage stabilizer, the third terminal of the second voltage stabilizer is connected to the power terminal of the remote monitoring device and the first terminal of the second voltage stabilizer, the ground terminal of the remote monitoring device and the fourth terminal of the first rectifier through the third capacitor, the monitoring terminal of the remote monitoring device is connected to the to-be-monitored terminal of the commercial electric appliance circuit board, and the receiving terminal of the remote monitoring device is connected to the auxiliary power supply module.
5. The remote monitoring control circuit for a circuit board of a commercial electric appliance according to claim 4, wherein The power failure detection module comprises a first power supply, a first resistor, a first optocoupler, a third resistor, a second resistor, a first switch tube, a first diode, a fourth resistor, a second switch tube, a third switch tube and a fifth resistor; The first terminal of the first optocoupler is connected to the first moving terminal of the first control switch, the second terminal of the first optocoupler is connected to the fourth terminal of the first rectifier, the third terminal of the first optocoupler is connected to one end of the second resistor and is connected to the first power supply, the collector of the first switch tube and the collector of the second switch tube through the first resistor, the other end of the second resistor is connected to the base of the first switch tube, the emitter of the first switch tube is connected to the auxiliary power supply module and is connected to one end of the third resistor, the emitter of the third switch tube and the ground terminal through the fourth resistor, the fourth terminal of the first optocoupler is connected to the anode of the first diode and the other end of the third resistor, the cathode of the first diode is connected to the collector of the third switch tube and the emitter of the second switch tube and is connected to the base of the second switch tube through the fifth resistor.
6. The remote monitoring control circuit for a circuit board of a commercial electric appliance according to claim 5, wherein The auxiliary power supply module comprises a first logic chip, a first power tube, a first battery and a sixth resistor; The A terminal and the B terminal of the first logic chip are connected to the emitter of the first switch tube and the cathode of the first diode respectively, the Y terminal of the first logic chip is connected to the gate of the first power tube and is connected to the receiving terminal of the remote monitoring device through the sixth resistor, the drain of the first power tube is connected to the positive pole of the first battery, the negative pole of the first battery is grounded, and the source of the first power tube is connected to the second terminal of the second voltage stabilizer.