A Bluetooth circuit breaker for smart electric energy meters

Abstract

The invention discloses a Bluetooth circuit breaker for a smart electric energy meter, and relates to the field of power supply control. The Bluetooth circuit breaker for the smart electric energy meter comprises: a mains power supply module, which is used to supply 220V alternating current and output it to a circuit power supply module and a power line control module; the circuit power supply module, which is used to convert the 220V alternating current into direct current and output it to the power line control module; a Bluetooth signal receiving module, which is used to output a signal to the power line control module and a fault standby module when a Bluetooth signal is received; compared with the prior art, the beneficial effects of the invention are as follows: when the Bluetooth signal is received, the power supply of the power line control module to the electric equipment is disconnected; when a switching fault occurs and the power supply cannot be disconnected, the fault standby module is enabled to disconnect the power line control module; when the fault standby module also fails, an alarm module is triggered to promptly remind relevant personnel, thereby ensuring the power off and promptly feeding back fault information.

Description

Technical Field

[0001] The invention relates to the field of power supply control, in particular to a Bluetooth circuit breaker for a smart electric energy meter. Background Art

[0002] The Bluetooth circuit breaker is an external switch used in power distribution meters. It uses Bluetooth wireless control instead of traditional UART-485 wired control. It has over-current, over-voltage, overload and other protection functions, as well as automatic disconnection and closing functions for arrears and automatic closing functions for payment.

[0003] The existing Bluetooth circuit breaker disconnects the power supply after receiving the Bluetooth signal when the payment is in arrears. Due to line faults, sometimes the power cannot be cut off when the payment is in arrears, causing losses to the power supply unit, and improvement is needed. Summary of the invention

[0004] The object of the present invention is to provide a Bluetooth circuit breaker for a smart electric energy meter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A Bluetooth circuit breaker for a smart electric energy meter, comprising:

[0007] The mains power supply module is used to supply 220V AC power and output it to the circuit power supply module and the power line control module;

[0008] Circuit power supply module, used to convert 220V AC power into DC power and output it to the power line control module;

[0009] A Bluetooth signal receiving module is used to output a signal to a power line control module and a fault backup module when receiving a Bluetooth signal;

[0010] The power line control module is used as a power supply line for power-consuming equipment, and stops supplying power to the power-consuming equipment when receiving a signal;

[0011] A fault standby module is used to disconnect the power line control module when the power line control module continues to supply power after receiving a signal;

[0012] The step-down rectifier filter module is used to detect whether there is voltage in the power line control module;

[0013] Abnormal trigger module, used to trigger the alarm module to work when the faulty standby module is abnormal;

[0014] Alarm module, used for sounding alarm;

[0015] The output end of the AC power supply module is connected to the input end of the circuit power supply module and the first input end of the power line control module, the output end of the circuit power supply module is connected to the second input end of the power line control module, the output end of the Bluetooth signal receiving module is connected to the third input end of the power line control module and the first input end of the fault standby module, the output end of the fault standby module is connected to the first input end of the abnormal trigger module and the fourth end of the power line control module, the first output end of the power line control module is connected to the second input end of the fault standby module, the second output end of the power line control module is connected to the input end of the step-down rectifier and filter module, the output end of the step-down rectifier and filter module is connected to the second input end of the abnormal trigger module, and the output end of the abnormal trigger module is connected to the input end of the alarm module.

[0016] As a further solution of the present invention: the circuit power supply module includes a transformer, a rectifier, a first capacitor, a second capacitor, a first inductor, and a voltage regulator. The input end of the transformer is connected to the output end of the AC power supply module, one end of the output end of the transformer is connected to the first end of the rectifier, the other end of the output end of the transformer is connected to the third end of the rectifier, the second end of the rectifier is grounded, the fourth end of the rectifier is connected to one end of the first capacitor and one end of the first inductor, the other end of the first capacitor is grounded, the other end of the first inductor is connected to one end of the second capacitor and the input end of the voltage regulator, the output end of the voltage regulator is connected to the second input end of the power line control module, the other end of the second capacitor is grounded, and the ground end of the voltage regulator is grounded.

[0017] As a further solution of the present invention: the power line control module includes a first diode, a second diode, a first MOS tube, a first resistor, a second MOS tube, and a third MOS tube. The AC power supply module includes a live wire and a neutral wire. The positive electrode of the first diode is connected to the positive electrode of the second diode and the output end of the circuit power supply module, the negative electrode of the first diode is connected to the D pole of the first MOS tube, the G pole of the first MOS tube is connected to the output end of the Bluetooth signal receiving module, the S pole of the first MOS tube is grounded, the negative electrode of the second diode is connected to one end of the first resistor, the other end of the first resistor is connected to the G pole of the second MOS tube and the second input end of the fault standby module, the D pole of the second MOS tube is connected to the live wire, the S pole of the second MOS tube is connected to the S pole of the third MOS tube, the G pole of the third MOS tube is connected to the output end of the fault standby module, the D pole of the third MOS tube is connected to the input end of the step-down rectifier and filter module and one end of the electrical equipment, and the other end of the electrical equipment is connected to the neutral wire.

[0018] As a further solution of the present invention: the fault backup module includes a first AND gate, a second resistor, a third diode, and a third capacitor. One end of the input end of the first AND gate is connected to the output end of the Bluetooth signal receiving module, and the other end of the input end of the first AND gate is connected to the first output end of the power line control module. The output end of the first AND gate is connected to one end of the second resistor and the first input end of the abnormal trigger module, the other end of the second resistor is connected to the positive electrode of the third diode, the negative electrode of the third diode is connected to one end of the third capacitor and the fourth input end of the power line control module, and the other end of the third capacitor is grounded.

[0019] As a further solution of the present invention: the step-down rectifier and filter module includes a third resistor, a fourth capacitor, a fourth diode, and a fifth capacitor. One end of the third resistor is connected to one end of the fourth capacitor and the second output end of the power line control module, the other end of the third resistor is connected to the other end of the fourth capacitor and the positive electrode of the fourth diode, the negative electrode of the fourth diode is connected to one end of the fifth capacitor and the second input end of the abnormal trigger module, and the other end of the fifth capacitor is grounded.

[0020] As a further solution of the present invention: the abnormal trigger module includes a sixth resistor and a third AND gate, one end of the input end of the third AND gate is connected to the output end of the fault backup module, one end of the sixth resistor is connected to the output end of the step-down rectifier and filter module, the other end of the sixth resistor is connected to the other end of the input end of the third AND gate, and the output end of the third AND gate is connected to the input end of the alarm module.

[0021] As a further solution of the present invention: the alarm module includes an amplifier, a sixth capacitor, a fifth resistor, a fourth resistor, and a speaker. The in-phase end of the amplifier is connected to the output end of the abnormal trigger module, the inverting end of the amplifier is connected to one end of the sixth capacitor and one end of the fifth resistor, the other end of the sixth capacitor is grounded, the other end of the fifth resistor is connected to the output end of the amplifier, one end of the fourth resistor, and one end of the speaker, the other end of the fourth resistor is grounded, and the other end of the speaker is grounded.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: when receiving a Bluetooth signal, the present invention disconnects the power supply of the power line control module to the power-consuming equipment. When a switching failure occurs and the power supply cannot be disconnected, the fault backup module is enabled to disconnect the power line control module. When the fault backup module also fails, the alarm module will be triggered to promptly remind relevant personnel to ensure that the power is cut off and the fault information is fed back in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a Bluetooth circuit breaker for a smart energy meter.

[0024] Figure 2 The present invention is a circuit diagram of a Bluetooth circuit breaker for a smart electric energy meter.

[0025] Figure 3 Circuit diagram of the module that supplies power to the circuit. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 , a Bluetooth circuit breaker for a smart electric energy meter, comprising:

[0028] The mains power supply module 1 is used to supply 220V AC power and output it to the circuit power supply module 2 and the power line control module 4;

[0029] The circuit power supply module 2 is used to convert 220V AC power into DC power and output it to the power line control module 4;

[0030] A Bluetooth signal receiving module 3 is used to output a signal to a power line control module 4 and a fault backup module 5 when receiving a Bluetooth signal;

[0031] The power line control module 4 is used as a power supply line for power-consuming equipment, and stops supplying power to the power-consuming equipment X when receiving a signal;

[0032] A fault standby module 5 is used to disconnect the power line control module 4 when the power line control module 4 continues to supply power after receiving a signal;

[0033] The step-down rectifier filter module 6 is used to detect whether the power line control module 4 has voltage;

[0034] The abnormal trigger module 7 is used to trigger the alarm module 8 to work when the fault standby module 5 is abnormal;

[0035] An alarm module 8 is used to sound an alarm;

[0036] The output end of the AC power supply module 1 is connected to the input end of the circuit power supply module 2 and the first input end of the power line control module 4, the output end of the circuit power supply module 2 is connected to the second input end of the power line control module 4, the output end of the Bluetooth signal receiving module 3 is connected to the third input end of the power line control module 4 and the first input end of the fault standby module 5, the output end of the fault standby module 5 is connected to the first input end of the abnormal trigger module 7 and the fourth end of the power line control module 4, the first output end of the power line control module 4 is connected to the second input end of the fault standby module 5, the second output end of the power line control module 4 is connected to the input end of the step-down rectifier and filter module 6, the output end of the step-down rectifier and filter module 6 is connected to the second input end of the abnormal trigger module 7, and the output end of the abnormal trigger module 7 is connected to the input end of the alarm module 8.

[0037] In the specific embodiment: the Bluetooth signal receiving module 3 uses a Bluetooth signal receiver to receive the Bluetooth signal, and after receiving the Bluetooth signal, outputs a high level to supply the power line control module 4 and the fault backup module 5. Since the relevant protection circuit already exists, the present invention does not discuss the protection circuit of the Bluetooth circuit breaker.

[0038] In this example: See Figure 3 The circuit power supply module 2 includes a transformer W, a rectifier T, a first capacitor C1, a second capacitor C2, a first inductor L1, and a voltage regulator U5. The input end of the transformer W is connected to the output end of the AC power supply module 1, one end of the output end of the transformer W is connected to the first end of the rectifier T, the other end of the output end of the transformer W is connected to the third end of the rectifier T, the second end of the rectifier T is grounded, the fourth end of the rectifier T is connected to one end of the first capacitor C1 and one end of the first inductor L1, the other end of the first capacitor C1 is grounded, the other end of the first inductor L1 is connected to one end of the second capacitor C2 and the input end of the voltage regulator U5, the output end of the voltage regulator U5 is connected to the second input end of the power line control module 4, the other end of the second capacitor C2 is grounded, and the ground end of the voltage regulator U5 is grounded.

[0039] The transformer W completes the voltage reduction processing of the AC power, the rectifier T converts the AC power into DC power, and the filter circuit composed of the first capacitor C1, the second capacitor C2, and the first inductor L1 performs filtering processing on the DC power.

[0040] In another embodiment, the voltage regulator U5 may be omitted, but this may result in unstable supply voltage.

[0041] In this example: See Figure 2The power line control module 4 includes a first diode D1, a second diode D2, a first MOS tube V1, a first resistor R1, a second MOS tube V2, and a third MOS tube V3. The AC power supply module 1 includes a live wire L and a neutral wire N. The positive electrode of the first diode D1 is connected to the positive electrode of the second diode D2 and the output end of the circuit power supply module 2. The negative electrode of the first diode D1 is connected to the D electrode of the first MOS tube V1. The G electrode of the first MOS tube V1 is connected to the output end of the Bluetooth signal receiving module 3. The S electrode of the first MOS tube V1 is grounded. The cathode of the second diode D2 is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to the G pole of the second MOS tube V2 and the second input end of the fault standby module 5, the D pole of the second MOS tube V2 is connected to the live wire L, the S pole of the second MOS tube V2 is connected to the S pole of the third MOS tube V3, the G pole of the third MOS tube V3 is connected to the output end of the fault standby module 5, the D pole of the third MOS tube V3 is connected to the input end of the step-down rectifier and filter module 6 and one end of the electrical equipment X, and the other end of the electrical equipment X is connected to the neutral line N.

[0042] When the Bluetooth signal receiving module 3 does not receive a Bluetooth signal, the output voltage of the circuit power supply module 2 passes through the second diode D2 and the first resistor R1, causing the second MOS tube V2 to be turned on (the third MOS tube V3 is a PMOS tube, which is turned on when the G pole is at a low level), and then the electric device X is powered to work. When the Bluetooth signal receiving module 3 receives a Bluetooth signal, it outputs a high level to the G pole of the first MOS tube V1, and the first MOS tube V1 is turned on and grounded, so that the current flowing to the second diode D2 is turned through the first diode D1, the first MOS tube V1 is grounded, and the second MOS tube V2 is disconnected, so that the circuit where the electric device X is located no longer forms a loop, and the electric device X does not work.

[0043] In another embodiment, a relay may be used to replace the MOS tube, which will result in a larger device size.

[0044] In this example: See Figure 2 The fault backup module 5 includes a first AND gate U1, a second resistor R2, a third diode D3, and a third capacitor C3. One end of the input end of the first AND gate U1 is connected to the output end of the Bluetooth signal receiving module 3, and the other end of the input end of the first AND gate U1 is connected to the first output end of the power line control module 4. The output end of the first AND gate U1 is connected to one end of the second resistor R2 and the first input end of the abnormal trigger module 7. The other end of the second resistor R2 is connected to the positive electrode of the third diode D3, the negative electrode of the third diode D3 is connected to one end of the third capacitor C3 and the fourth input end of the power line control module 4, and the other end of the third capacitor C3 is grounded.

[0045] When the power line control module 4 fails (at the first diode D1 and the first MOS tube V1), the Bluetooth signal receiving module 3 sends a high level, and the power current limiting control module still supplies power to the power-consuming device X; at this time, both input ends of the first AND gate U1 are high levels, and the first AND gate U1 outputs a high level, which is output to the G pole of the third MOS tube V3 after passing through the second resistor R2, the third diode D3, and the third capacitor C3, so that the third MOS tube V3 is cut off, and the line for supplying power to the power-consuming device X is disconnected.

[0046] In another embodiment, the third diode D3 can be omitted. The third diode D3 is a light emitting diode that indicates whether the faulty standby module 5 is working.

[0047] In this example: See Figure 2 The step-down rectifier and filter module 6 includes a third resistor R3, a fourth capacitor C4, a fourth diode D4, and a fifth capacitor C5. One end of the third resistor R3 is connected to one end of the fourth capacitor C4 and the second output end of the power line control module 4. The other end of the third resistor R3 is connected to the other end of the fourth capacitor C4 and the positive electrode of the fourth diode D4. The negative electrode of the fourth diode D4 is connected to one end of the fifth capacitor C5 and the second input end of the abnormal trigger module 7. The other end of the fifth capacitor C5 is grounded.

[0048] Through capacitive voltage reduction (third resistor R3, fourth capacitor C4), low-volt DC power is output to the abnormal trigger module 7 through the fourth diode D4 and the fifth capacitor C5, providing the abnormal trigger module 7 with information on whether the power line control module 4 is broken.

[0049] In another embodiment: a potentiometer can be used to replace the third resistor R3 to change the voltage reduction amplitude. The voltage reduction rectifier and filter module 6 only provides the power line control module 4 with information on whether there is power supply (high level output when there is power, low level output when there is no power), and there is no need for overly precise voltage reduction.

[0050] In this example: See Figure 2 The abnormal trigger module 7 includes a sixth resistor R6 and a third AND gate U3. One end of the input end of the third AND gate U3 is connected to the output end of the fault backup module 5, one end of the sixth resistor R6 is connected to the output end of the step-down rectifier and filter module 6, the other end of the sixth resistor R6 is connected to the other end of the input end of the third AND gate U3, and the output end of the third AND gate U3 is connected to the input end of the alarm module 8.

[0051] After the fault backup module 5 works, under normal conditions, the third MOS tube V3 is turned off; when the second resistor R2, the third diode D3, and the third capacitor C3 are disconnected; at this time, the first AND gate U1 still outputs a high level to the third AND gate U3, but the power line control module 4 still supplies power to the power-consuming device X, so that the step-down rectifier and filter module 6 outputs a high level to the third AND gate U3 through the sixth resistor R6, so that the third AND gate U3 outputs a high level, triggering the alarm module 8 to work.

[0052] In another embodiment, the sixth resistor R6 may be omitted. The sixth resistor R6 is used for current limiting to prevent the input current of the third AND gate U3 from being too large and causing damage.

[0053] In this example: See Figure 2 The alarm module 8 includes an amplifier U4, a sixth capacitor C6, a fifth resistor R5, a fourth resistor R4, and a speaker SPEAKER. The in-phase end of the amplifier U4 is connected to the output end of the abnormal trigger module 7, the inverting end of the amplifier U4 is connected to one end of the sixth capacitor C6 and one end of the fifth resistor R5, the other end of the sixth capacitor C6 is grounded, the other end of the fifth resistor R5 is connected to the output end of the amplifier U4, one end of the fourth resistor R4, and one end of the speaker SPEAKER, the other end of the fourth resistor R4 is grounded, and the other end of the speaker SPEAKER is grounded.

[0054] When the non-inverting terminal of the amplifier U4 receives a high level, the voltage at the non-inverting terminal of the amplifier U4 is higher than the voltage at the inverting terminal, and the amplifier U4 outputs a high level to charge the sixth capacitor C6. When the sixth capacitor C6 is charged beyond the non-inverting terminal voltage, the voltage at the inverting terminal of the amplifier U4 is higher than the voltage at the non-inverting terminal, and the amplifier U4 outputs a low level, and the sixth capacitor C6 is discharged, so that the voltage at the non-inverting terminal of the amplifier U4 is higher than the voltage at the inverting terminal again, and the sixth capacitor C6 is charged again, and this cycle repeats, so that the sixth capacitor C6 outputs a frequency signal to drive the buzzer SPEAKER to sound.

[0055] In another embodiment: the speaker SPEAKER can be replaced with a crystal, and the crystal receives a frequency signal and vibrates to sound an alarm, but the sound of the crystal may be relatively small and insufficient to alert relevant personnel.

[0056] The working principle of the present invention is as follows: the mains power supply module 1 supplies 220V AC power, which is output to the circuit power supply module 2 and the power line control module 4. The circuit power supply module 2 converts the 220V AC power into DC power and outputs it to the power line control module 4. When the Bluetooth signal receiving module 3 receives the Bluetooth signal, it outputs the signal to the power line control module 4 and the fault standby module 5. The power line control module 4 serves as the power supply line of the power-consuming device X. When the signal is received, the power supply to the power-consuming device X is stopped. When the fault standby module 5 continues to supply power after receiving the signal, the power line control module 4 is disconnected. The step-down rectifier and filter module 6 detects whether the power line control module 4 has voltage. When the abnormal trigger module 7 and the fault standby module 5 are abnormal, the alarm module 8 is triggered to work, and the alarm module 8 sounds an alarm. The present invention further ensures that the power is cut off through the fault standby module 5, and quickly determines where the circuit has a fault through the operation of the first diode D1, the second diode D2, the third diode D3 (all three diodes are light-emitting diodes) and the speaker SPEAKER, so as to facilitate maintenance.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A Bluetooth circuit breaker for a smart electric energy meter, characterized in that: The Bluetooth circuit breaker for smart energy meters includes: The mains power supply module is used to supply 220V AC power and output it to the circuit power supply module and the power line control module; Circuit power supply module, used to convert 220V AC power into DC power and output it to the power line control module; A Bluetooth signal receiving module is used to output a signal to a power line control module and a fault backup module when receiving a Bluetooth signal; The power line control module is used as a power supply line for power-consuming equipment, and stops supplying power to the power-consuming equipment when receiving a signal; A fault standby module is used to disconnect the power line control module when the power line control module continues to supply power after receiving a signal; The step-down rectifier filter module is used to detect whether there is voltage in the power line control module; Abnormal trigger module, used to trigger the alarm module to work when the faulty standby module is abnormal; Alarm module, used for sounding alarm; The output end of the AC power supply module is connected to the input end of the circuit power supply module and the first input end of the power line control module, the output end of the circuit power supply module is connected to the second input end of the power line control module, the output end of the Bluetooth signal receiving module is connected to the third input end of the power line control module and the first input end of the fault standby module, the output end of the fault standby module is connected to the first input end of the abnormal trigger module and the fourth end of the power line control module, the first output end of the power line control module is connected to the second input end of the fault standby module, the second output end of the power line control module is connected to the input end of the buck rectifier and filter module, the output end of the buck rectifier and filter module is connected to the second input end of the abnormal trigger module, and the output end of the abnormal trigger module is connected to the input end of the alarm module; The power line control module includes a first diode, a second diode, a first MOS tube, a first resistor, a second MOS tube, and a third MOS tube. The mains power supply module includes a live wire and a neutral wire. The positive electrode of the first diode is connected to the positive electrode of the second diode and the output end of the circuit power supply module, the negative electrode of the first diode is connected to the D pole of the first MOS tube, the G pole of the first MOS tube is connected to the output end of the Bluetooth signal receiving module, the S pole of the first MOS tube is grounded, the negative electrode of the second diode is connected to one end of the first resistor, the other end of the first resistor is connected to the G pole of the second MOS tube and the second input end of the fault standby module, the D pole of the second MOS tube is connected to the live wire, the S pole of the second MOS tube is connected to the S pole of the third MOS tube, the G pole of the third MOS tube is connected to the output end of the fault standby module, the D pole of the third MOS tube is connected to the input end of the step-down rectifier and filter module and one end of the electrical equipment, and the other end of the electrical equipment is connected to the neutral wire; The fault backup module includes a first AND gate, a second resistor, a third diode, and a third capacitor. One end of the input end of the first AND gate is connected to the output end of the Bluetooth signal receiving module, and the other end of the input end of the first AND gate is connected to the first output end of the power line control module. The output end of the first AND gate is connected to one end of the second resistor and the first input end of the abnormal trigger module. The other end of the second resistor is connected to the positive electrode of the third diode, the negative electrode of the third diode is connected to one end of the third capacitor and the fourth input end of the power line control module, and the other end of the third capacitor is grounded.

2. The Bluetooth circuit breaker for smart electric energy meter according to claim 1, characterized in that: The circuit power supply module includes a transformer, a rectifier, a first capacitor, a second capacitor, a first inductor, and a voltage regulator. The input end of the transformer is connected to the output end of the AC power supply module, one end of the output end of the transformer is connected to the first end of the rectifier, the other end of the output end of the transformer is connected to the third end of the rectifier, the second end of the rectifier is grounded, the fourth end of the rectifier is connected to one end of the first capacitor and one end of the first inductor, the other end of the first capacitor is grounded, the other end of the first inductor is connected to one end of the second capacitor and the input end of the voltage regulator, the output end of the voltage regulator is connected to the second input end of the power line control module, the other end of the second capacitor is grounded, and the ground end of the voltage regulator is grounded.

3. The Bluetooth circuit breaker for smart electric energy meter according to claim 1, characterized in that: The step-down rectifier and filter module includes a third resistor, a fourth capacitor, a fourth diode, and a fifth capacitor. One end of the third resistor is connected to one end of the fourth capacitor and the second output end of the power line control module, the other end of the third resistor is connected to the other end of the fourth capacitor and the positive electrode of the fourth diode, the negative electrode of the fourth diode is connected to one end of the fifth capacitor and the second input end of the abnormal trigger module, and the other end of the fifth capacitor is grounded.

4. The Bluetooth circuit breaker for smart electric energy meter according to claim 1, characterized in that: The abnormal trigger module includes a sixth resistor and a third AND gate, one end of the input end of the third AND gate is connected to the output end of the fault backup module, one end of the sixth resistor is connected to the output end of the step-down rectifier and filter module, the other end of the sixth resistor is connected to the other end of the input end of the third AND gate, and the output end of the third AND gate is connected to the input end of the alarm module.

5. The Bluetooth circuit breaker for smart electric energy meter according to claim 4, characterized in that: The alarm module includes an amplifier, a sixth capacitor, a fifth resistor, a fourth resistor, and a speaker. The in-phase end of the amplifier is connected to the output end of the abnormal trigger module, the inverting end of the amplifier is connected to one end of the sixth capacitor and one end of the fifth resistor, the other end of the sixth capacitor is grounded, the other end of the fifth resistor is connected to the output end of the amplifier, one end of the fourth resistor, and one end of the speaker, the other end of the fourth resistor is grounded, and the other end of the speaker is grounded.

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