New energy air defense warning system

Abstract

The utility model provides a new energy air defense warning system, and belongs to the technical field of air defense warning. The new energy air defense warning system comprises a solar power supply module, a wind energy power supply module, a wind-solar complementary control module, a storage battery module, a switching power supply module, a power supply master control module, a warning master control module, a power amplification module, a loudspeaker, a voltage reduction module and a communication module. The solar energy power supply module and the wind energy power supply module are connected with the wind-solar complementary control module, and the wind-solar complementary control module is connected with the storage battery module and the power supply main control module. The storage battery module is respectively connected with the switching power supply module, the voltage reduction module and the power amplification module, and the switching power supply module is also respectively connected with the voltage reduction module and the power amplification module; the power supply master control module is respectively connected with the voltage reduction module and the alarm master control module, the power amplification module is connected with the loudspeaker, and the alarm master control module is connected with the communication module. According to the invention, the secondary early warning of the alarm system can be ensured to be carried out stably.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air defense warning, in particular to a new energy air defense warning system. BACKGROUND

[0002] In the modern air defense warning system, the traditional air defense warning system mainly relies on the power supply of commercial power. However, when there is a war or other emergency situation, the traditional air defense warning terminal cannot play the role of early warning due to unstable commercial power supply. With the rapid development of new energy technology, renewable energy such as solar energy and wind energy is increasingly widely used in various fields. Solar photovoltaic panels can efficiently convert solar energy into electrical energy, and wind power generators can convert wind energy into electrical energy, and have durability. Therefore, a new energy air defense warning system is urgently needed, which uses new energy and commercial power as the main and backup power supply of the air defense warning system, so that the air defense warning system has effective secondary warning capability and stronger response to emergencies. CONTENT OF THE INVENTION

[0003] The present disclosure provides a new energy air defense warning system to solve the problem of unstable energy supply.

[0004] The present disclosure provides a new energy air defense warning system, comprising:

[0005] a solar power supply module, a wind power supply module, a wind-solar complementary control module, a battery module, a switching power supply module, a power supply main control module, a warning main control module, a power amplifier module, a loudspeaker, a voltage reduction module and a communication module;

[0006] The solar power supply module and the wind power supply module are connected to the wind-solar complementary control module, and the wind-solar complementary control module is connected to the battery module and the power supply main control module;

[0007] The battery module is connected to the switching power supply module, the voltage reduction module and the power amplifier module, and the switching power supply module is also connected to the voltage reduction module and the power amplifier module;

[0008] The power supply main control module is connected to the voltage reduction module and the warning main control module, the power amplifier module is connected to the loudspeaker, and the warning main control module is connected to the communication module.

[0009] In an exemplary embodiment of the present disclosure, the new energy air defense warning system further comprises:

[0010] a man-machine interaction module;

[0011] The man-machine interaction module is connected to the warning main control module.

[0012] In an exemplary embodiment of the present disclosure, the power protection part in the switching power supply module comprises a flyback circuit, a voltage dividing circuit and a power protection circuit.

[0013] In an exemplary embodiment of the present disclosure, the flyback circuit comprises a switching tube Q1, a flyback power supply PT, a diode D1 and a capacitor C1.

[0014] The first end of the switching tube Q1 is connected with the output end of the comparator U8, the second end of the switching tube Q1 is connected with the first end of the flyback power supply PT, and the third end of the switching tube Q1 is grounded; the second end of the power supply PT is connected with the diode D1 in series and then connected with the capacitor C1 in parallel.

[0015] In an exemplary embodiment of the present disclosure, the voltage dividing circuit comprises a resistor R4 and a resistor R5.

[0016] The first end of the capacitor C1 is connected with the output signal Vo and the first end of the resistor R4 respectively, the second end of the capacitor C1 is grounded, the second end of the resistor R4 is connected with the first end of the resistor R5, and the second end of the resistor R5 is grounded; the first end of the resistor R4 is also connected with the load resistor RL.

[0017] In an exemplary embodiment of the present disclosure, the power protection circuit comprises:

[0018] an amplifier U1, a NOT gate U5A, a comparator U8, a resistor R1, a resistor R2, a resistor R3 and a switching tube Q2.

[0019] The inverting input end of the amplifier U1 is connected with the second end of the resistor R4, the non-inverting input end of the amplifier U1 is connected with the reference voltage Vref, the output end of the amplifier U1 is connected with the input end of the NOT gate U5A, the output end of the NOT gate U5A is connected with the first input end of the comparator U8, and the second input end of the comparator U8 is connected with the G1 signal.

[0020] The second end of the switching tube Q1 is also connected with the first end of the resistor R3, the second end of the resistor R3 is connected with the first end of the switching tube Q2, the second end of the switching tube Q2 is connected with the first end of the resistor R2, the second end of the resistor R2 is connected with the output end of the amplifier U1, and the third end of the switching tube Q2 is grounded.

[0021] In an exemplary embodiment of the present disclosure, the new energy anti-aircraft alarm system further comprises an energy switching circuit; the energy switching circuit comprises:

[0022] a first switch S1, a relay K1, a relay K2 and a diode D2.

[0023] The first end of the first switch S1 is used for connecting with the mains, the second end of the first switch S1 is connected with the normally closed terminal of the relay K1, the control end of the relay K1 is connected with the normally open terminal of the relay K2, the normally closed terminal of the relay K2 is suspended, and the control end of the relay K2 is connected with the power master module; the diode D2 is connected in parallel with the control end of the relay K2.

[0024] The normally closed terminal of the relay K1 is also connected with the switching power supply module.

[0025] The new energy air defense alarm system provided by the embodiment of the present disclosure has the following beneficial effects:

[0026] On the one hand, the system combines the solar power supply module and the wind power supply module, fully utilizes the advantages of clean and renewable solar energy and rich wind energy resources and flexible power generation scale. The wind-solar complementary control module can intelligently switch the working mode according to the power generation power of the two, realizes the optimization and complementation of energy, not only can improve the stability and reliability of system power supply, reduce the risk of power interruption caused by insufficient single energy supply, but also can prolong the service life of the storage battery and reduce the system cost. At the same time, the system has various protection circuits, which can effectively prevent the reverse connection, overcharging and overdischarging of the storage battery, further guarantee the safe and stable operation of the system, and ensure that the power amplification module and the loudspeaker module can work continuously and stably, and can quickly and accurately broadcast after receiving the air defense alarm signal.

[0027] On the other hand, the system has unique advantages in monitoring and management. The alarm master module closely interacts with the upper system through the communication module, can receive the air defense alarm sound signal and effectively broadcast through the power amplification module and the loudspeaker module, can upload the working information and fault state information of the key modules in the system such as the wind-solar complementary control module, the switching power supply module, the power amplification module and the loudspeaker module to the upper system in time, and can also perform system self-checking, so that the upper system can fully master the system operation condition and facilitate timely maintenance and management, greatly improving the intelligent level and operability of the entire air defense alarm system, and guaranteeing the efficient response and stable operation of the air defense alarm system in emergency situations. BRIEF DESCRIPTION OF DRAWINGS

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

[0029] Figure 1 is a structural schematic diagram of a new energy air defense alarm system provided by the embodiment of the present disclosure;

[0030] Figure 2 is a circuit diagram of a power protection part in a switching power supply module provided by the embodiment of the present disclosure.

[0031] Figure 3 is a circuit diagram of an energy switching circuit provided by the embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In order to enable persons skilled in the art to better understand the present scheme, the technical solutions in the embodiments of the present scheme will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present scheme. Obviously, the described embodiments are part of the embodiments of the present scheme, rather than all the embodiments. Based on the embodiments in the present scheme, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present scheme.

[0033] The terms "include", and other any variations thereof, in the specification and claims of the present scheme and the above-mentioned accompanying drawings, refer to "include but not limited to", and are intended to cover non-exclusive inclusion, and are not limited to the examples listed in the text. In addition, the terms "first" and "second" and the like are used to distinguish different objects, rather than to describe a specific order.

[0034] The implementation of the present disclosure is described in detail below in conjunction with specific accompanying drawings:

[0035] Figure 1 is a structural schematic diagram of a new energy anti-air defense alarm system provided by the embodiment of the present disclosure. Referring to Figure 1 The new energy anti-air defense alarm system comprises:

[0036] a solar power supply module, a wind power supply module, a wind-solar complementary control module, a battery module, a switching power supply module, a power supply main control module, an alarm main control module, a power amplification module, a loudspeaker, a voltage reduction module and a communication module.

[0037] The solar power supply module and the wind power supply module are connected with the wind-solar complementary control module, and the wind-solar complementary control module is connected with the battery module and the power supply main control module respectively.

[0038] The battery module is connected with the switching power supply module, the voltage reduction module and the power amplification module respectively, and the switching power supply module is further connected with the voltage reduction module and the power amplification module respectively.

[0039] The power supply main control module is connected with the voltage reduction module and the alarm main control module respectively, the power amplification module is connected with the loudspeaker, and the alarm main control module is connected with the communication module.

[0040] In the embodiment, the solar power supply module is a solar panel, the core component of the solar panel is generally made of monocrystalline silicon, polycrystalline silicon or amorphous silicon and the like, and has a photoelectric conversion function. The solar panel is clean, pollution-free, renewable, low in operation and maintenance cost, and long in service life.

[0041] The wind power supply module mainly includes a wind turbine, a speed increaser and a generator. The wind turbine converts wind energy into mechanical energy, and the speed increaser drives the generator to generate electricity after increasing the speed. The wind energy resource is abundant, the cost is gradually reduced, and the power generation scale is flexible.

[0042] The wind-solar complementary control module can monitor solar energy and wind energy in real time, and automatically switch the working mode according to the power generation power of the two. When the solar energy is sufficient, the solar energy is preferentially used to charge the storage battery; when the solar energy is insufficient and the wind energy is sufficient, the wind energy is used to charge the storage battery. The wind-solar complementary control module can realize the optimization and complementation of solar energy and wind energy, improve the stability and reliability of system power supply, prolong the service life of the storage battery, and reduce the system cost. The wind-solar complementary control module is also connected with the power main control module, the sensors in the wind-solar complementary control module are used to collect the working parameters of the wind turbine and the solar panel, and the parameters are sent to the power main control module. The mains can supply power to the power amplifier module through the switching power supply module, and can also charge the storage battery. The voltage of the storage battery or the mains can be reduced by the voltage reduction module to supply power to the power main control module and the alarm main control module.

[0043] The alarm main control module receives the air defense alarm sound signal through the communication module, and sends the air defense alarm sound signal to the power amplifier module. The power amplifier module can amplify the analog signal sent by the alarm main control module, and output to the loudspeaker module, and the loudspeaker module can emit a ringing sound. The power amplifier module includes multiple groups of power amplification units, each group of power amplification unit has a power of 1200W, and multiple groups of power amplification units can be configured according to the user's demand for the sound power of the equipment. The loudspeaker module is a loudspeaker group, and each group of loudspeaker has a power of 1200W, and multiple groups of loudspeakers can be configured according to the user's demand for the sound power of the equipment.

[0044] The power main control module can communicate information with the wind-solar complementary control module and the alarm main control module, and manage the operation of the whole system.

[0045] In the embodiment, the working principle of the whole system is as follows:

[0046] Firstly, the power supply of the whole system includes two kinds, one is that the mains through the switching power supply module for power amplifier module, power supply main control module and alarm main control module for power supply, the excess energy can be charged for the battery. Among them, the power supply main control module and the alarm main control module cannot directly use high-voltage mains, and need to be used after being stepped down. The other is new energy power supply, including solar power supply and wind power generator power supply, two kinds of new energy can supply power to the battery through the wind-solar complementary control module. The wind-solar complementary control module also includes wind power supply module, solar power supply module, battery battery pack reverse connection protection circuit, battery battery pack overcharge protection circuit, overdischarge protection circuit, etc. The power supply mode of the whole system can ensure the stable work of the power amplifier module and the loudspeaker module, and ensure that the system can broadcast immediately after receiving the air defense alarm signal.

[0047] Secondly, the working process of the whole system receiving the air defense alarm signal is as follows: the alarm main control module interacts with the upper system through the communication module, mainly including receiving the instructions of the upper system and analyzing, sending the analyzed signal to the power amplifier module for amplification, and then sending it to the loudspeaker for broadcasting. The alarm main control module can also upload the wind-solar complementary controller working information, wind energy charging information, photovoltaic charging information, wind turbine and solar panel fault state information collected by the wind-solar complementary control module to the upper system through the communication module. The alarm main control module can also perform system self-checking, and upload the working state of the switching power supply module, power amplifier module, loudspeaker module and the like to the upper system through the communication unit module.

[0048] In summary, the system has the following functions: on the one hand, the system combines the solar power supply module with the wind power supply module, fully utilizes the advantages of clean and renewable solar energy and abundant wind energy resources and flexible power generation scale. The wind-solar complementary control module can intelligently switch working modes according to the power generation power of the two, realizes the optimization of energy complementation, not only can improve the stability and reliability of system power supply, reduce the risk of power interruption caused by insufficient single energy supply, but also can prolong the service life of the battery and reduce the system cost. At the same time, the system has various protection circuits, which can effectively prevent the reverse connection, overcharge, overdischarge and other conditions of the battery, further guarantee the safe and stable operation of the system, ensure that the power amplifier module and the loudspeaker module can work continuously and stably, and can broadcast quickly and accurately after receiving the air defense alarm signal.

[0049] On the other hand, the system has unique advantages in monitoring management. The alarm master module interacts closely with the superior system through the communication module, can receive the air defense alarm audio signal and effectively broadcast through the power amplifier module and the loudspeaker module, can upload the working information and fault state information of each key module in the system such as the wind-solar complementary control module, the switching power supply module, the power amplifier module and the loudspeaker module to the superior system in time, can also perform system self-checking, and facilitates the superior system to master the system operation condition comprehensively, facilitates timely maintenance and management, greatly improves the intelligent level and operability of the entire air defense alarm system, and guarantees the efficient response and stable operation of the air defense alarm system in emergency situations.

[0050] In an embodiment of the present disclosure, referring to Figure 1 , the new energy air defense alarm system further comprises:

[0051] a man-machine interaction module;

[0052] The man-machine interaction module is connected with the alarm master module.

[0053] In this embodiment, the man-machine interaction module can display the overall operation state of the system in real time and intuitively, including the power generation conditions of the solar power supply module and the wind power supply module, such as the current power generation, the cumulative power generation, etc.; the power state of the battery module, such as the remaining power percentage, the charging and discharging state, etc.; and the working state of other key modules such as the switching power supply module, the power amplifier module, the loudspeaker, etc., such as whether it is running normally, whether there is a fault, etc., so that the operator can see at a glance.

[0054] The man-machine interaction module can also allow the operator to flexibly set and adjust various parameters of the system according to actual needs. For example, the switching threshold of solar energy and wind energy in the wind-solar complementary control module can be set to optimize the energy utilization efficiency according to the light and wind resource characteristics of different regions; some working parameters of the alarm master module can also be set, such as the receiving frequency, the volume size, the broadcast mode, etc. of the air defense alarm signal.

[0055] From the above, it can be seen that the man-machine interaction module can be used for device state display, viewing, device parameter setting, near-end alarm issuance, voice broadcast issuance, etc.

[0056] In an embodiment of the present disclosure, referring to Figure 2 , the power protection part in the switching power supply module comprises a flyback circuit, a voltage dividing circuit and a power protection circuit.

[0057] The flyback circuit comprises a switching tube Q1, a flyback power PT, a diode D1 and a capacitor C1;

[0058] The first end of the switch tube Q1 is used for being connected with the output end of the comparator U8, the second end of the switch tube Q1 is connected with the first end of the flyback power PT, and the third end of the switch tube Q1 is grounded; the second end of the power PT is connected with the diode D1 in series and then is connected with the capacitor C1 in parallel.

[0059] The voltage dividing circuit comprises a resistor R4 and a resistor R5.

[0060] The first end of the capacitor C1 is connected with the output signal Vo and the first end of the resistor R4 respectively, the second end of the capacitor C1 is grounded, the second end of the resistor R4 is connected with the first end of the resistor R5, and the second end of the resistor R5 is grounded; the first end of the resistor R4 is also used for being connected with the load resistor RL.

[0061] The power protection circuit comprises:

[0062] The amplifier U1, the NOT gate U5A, the comparator U8, the resistor R1, the resistor R2, the resistor R3 and the switch tube Q2.

[0063] The inverting input end of the amplifier U1 is connected with the second end of the resistor R4, the non-inverting input end of the amplifier U1 is connected with the reference voltage Vref, the output end of the amplifier U1 is connected with the input end of the NOT gate U5A, the output end of the NOT gate U5A is connected with the first input end of the comparator U8, and the second input end of the comparator U8 is connected with the G1 signal.

[0064] The second end of the switch tube Q1 is also connected with the first end of the resistor R3, the second end of the resistor R3 is connected with the first end of the switch tube Q2, the second end of the switch tube Q2 is connected with the first end of the resistor R2, the second end of the resistor R2 is connected with the output end of the amplifier U1, and the third end of the switch tube Q2 is grounded.

[0065] In the embodiment, the flyback circuit, the voltage dividing circuit and the power protection circuit jointly constitute the circuit protection part of the switching power supply module, so that the equipment can be timely cut off from the power supply in the extreme case and is prevented from being damaged.

[0066] The switch tube Q1 is used as a control element and determines whether the primary winding of the flyback power PT is connected with the input power Vi. When the Q1 is turned on, the primary winding is powered on; when the Q1 is turned off, the primary winding is powered off. When the Q1 is turned on, the flyback power PT (transformer) stores the electric energy in the form of magnetic energy in the core; when the Q1 is turned off, the stored magnetic energy is converted into electric energy and output from the secondary winding. The diode D1 is a rectifier diode, which rectifies the induced electromotive force of the secondary winding of the flyback power PT into direct current to charge the capacitor C1 and supply power to the load resistor RL. The capacitor C1 is an output filter capacitor, which filters the rectified voltage to make the output voltage Vo smoother.

[0067] The resistors R4 and R5 constitute a voltage dividing circuit for sampling the output voltage Vo and feeding back the sampling signal to the amplifier U1 to realize voltage regulation and protection. The amplifier U1, the non-inverter U5A and the comparator U8 constitute a voltage feedback control and protection circuit. The amplifier U1 is used to compare the sampling voltage with the reference voltage Vref, and the non-inverter U5A and the comparator U8 are used to process the comparison result and control the on and off of the switch tube Q1. The resistors R1, R2 and R3 and the switch tube Q2 constitute an over-current protection circuit. The resistor R3 is used to sample the current of the switch tube Q1, and when the current is too large, the Q2 is turned on to make the Q1 off through feedback to realize over-current protection.

[0068] The working principle of the flyback switching power supply circuit is as follows:

[0069] Under normal conditions, the PWM signal output by the U8 controls the switch tube Q1 to be turned on, and the resistors R4 and R5 sample the output voltage Vo and input the sampling voltage to the inverting input terminal of the amplifier U1 to compare with the reference voltage Vref at the non-inverting input terminal. When the output voltage Vo deviates from the set value, the output of the amplifier U1 changes, and the on and off time of the switch tube Q1 is controlled through the non-inverter U5A and the comparator U8, so as to regulate the output voltage Vo to keep it stable.

[0070] Under abnormal conditions, when the output voltage Vo rises due to some reason, the output voltage of the amplifier U1 is very large, and after being inverted, it is very small, at this time, the switch tube Q1 cannot be driven, and the switch tube Q1 is disconnected, so as to cut off the energy input of the flyback power supply PT and stop the voltage output to realize over-voltage protection.

[0071] When the load is short-circuited, the output voltage of the amplifier U1 is very large, the switch tube Q1 is turned off to cut off the power input, and the switch tube Q2 is turned on. R3 is a large resistor and can realize effective voltage division to realize over-current protection.

[0072] From the above, it can be concluded that the circuit realizes voltage conversion through the flyback topology structure, and ensures the stability of the output voltage and the safe operation of the circuit through the feedback control and protection circuit.

[0073] In an embodiment of the present disclosure, with reference to Figure 3 , the new energy anti-aircraft alarm system further comprises an energy switching circuit; the energy switching circuit comprises:

[0074] The first switch S1, the relay K1, the relay K2 and the diode D2;

[0075] The first end of the first switch S1 is used for connecting with the mains, the second end of the first switch S1 is connected with the normally closed terminal of the relay K1, the control end of the relay K1 is connected with the normally open terminal of the relay K2, the normally closed terminal of the relay K2 is suspended, and the control end of the relay K2 is connected with the power main control module; the diode D2 is connected in parallel with the control end of the relay K2.

[0076] The normally closed terminal of the relay K1 is also connected with the switching power supply module.

[0077] In the embodiment, S1 is an AC power input switch, K1 is an AC power control output relay (AC control), the live wire of the AC power is connected with the normally closed terminals 3 and 4 of the relay K1, so as to ensure that the system normally works by default using the AC power. K2 is a DC relay, which is used for controlling the relay K1 to work. When the system initially works, the control end of the relay K1 is connected with the normally open terminals 2 and 7 of the relay K2, the relay K1 works in the state that the terminals 3 and 4 remain closed, the mains normally supplies power, and the mains supplies power for the switching power supply module.

[0078] When the system detects that the new energy power supply (solar power supply or wind power supply) is stable, the power main control module controls the relay K2 to work, the normally open terminals 2 and 7 of the relay K2 are closed, the relay K1 works, the normally closed terminals 3 and 4 of the relay K1 are disconnected, the AC power output is disconnected, and all energy supplies of the system are provided by the new energy system, so as to ensure the energy saving of the AC power.

[0079] From the above, it can be concluded that the system supports working by the mains and the new energy power supply, the dual power supply working can effectively ensure the secondary alarm capability of the system, the system preferentially uses the new energy power supply, and switches to the mains working when the new energy fails, so as to effectively ensure the energy saving and environmental protection.

[0080] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the foregoing embodiments of the present disclosure are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and the modification or replacement does 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 disclosure.

Claims

1. A new energy air defense alarm system, characterized in that, The utility model relates to a solar power supply module, a wind energy supply module, a wind-solar complementary control module, a battery module, a switching power supply module, a power supply main control module, an alarm main control module, a power amplifier module, a loudspeaker, a voltage reduction module and a communication module. The solar power supply module and the wind energy supply module are connected to the wind-solar complementary control module, and the wind-solar complementary control module is connected to the battery module and the power supply main control module. The battery module is connected to the switching power supply module, the voltage reduction module and the power amplifier module, and the switching power supply module is connected to the voltage reduction module and the power amplifier module. The power supply main control module is connected to the voltage reduction module and the alarm main control module, the power amplifier module is connected to the loudspeaker, and the alarm main control module is connected to the communication module. The utility model further relates to a human-computer interaction module.

2. A new energy air defense warning system according to claim 1, characterized in that, The human-computer interaction module is connected to the alarm main control module. The power supply protection part in the switching power supply module comprises a flyback circuit, a voltage division circuit and a power supply protection circuit. The flyback circuit comprises a switching tube Q1, a flyback power supply PT, a diode D1 and a capacitor C1.

3. A new energy air defense warning system according to claim 1, characterized in that, The first end of the switching tube Q1 is connected to the output end of a comparator U8, the second end of the switching tube Q1 is connected to the first end of the flyback power supply PT, and the third end of the switching tube Q1 is grounded; the second end of the power supply PT is connected to the diode D1 in series and then connected to the capacitor C1 in parallel.

4. A new energy air defense warning system according to claim 3, characterized in that, The voltage division circuit comprises a resistor R4 and a resistor R5. The first end of the capacitor C1 is connected to an output signal Vo and the first end of the resistor R4, the second end of the capacitor C1 is grounded, the second end of the resistor R4 is connected to the first end of the resistor R5, and the second end of the resistor R5 is grounded; the first end of the resistor R4 is also connected to a load resistor RL.

5. A new energy air defense warning system according to claim 4, characterized in that, The power supply protection circuit comprises: an amplifier U1, a NOT gate U5A, a comparator U8, a resistor R1, a resistor R2, a resistor R3 and a switching tube Q2; 6. A new energy air defense warning system according to claim 5, characterized in that, the inverting input end of the amplifier U1 is connected to the second end of the resistor R4, the noninverting input end of the amplifier U1 is connected to a reference voltage Vref, the output end of the amplifier U1 is connected to the input end of the NOT gate U5A, the output end of the NOT gate U5A is connected to the first input end of the comparator U8, and the second input end of the comparator U8 is connected to a G1 signal; the second end of the switching tube Q1 is also connected to the first end of the resistor R3, the second end of the resistor R3 is connected to the first end of the switching tube Q2, the second end of the switching tube Q2 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the output end of the amplifier U1, and the third end of the switching tube Q2 is grounded. The utility model further relates to an energy switching circuit, which comprises: a first switch S1, a relay K1, a relay K2 and a diode D2.

7. A new energy air defense warning system according to claim 1, characterized in that, ​ ​ The first end of the first switch S1 is used for connecting with the mains, the second end of the first switch S1 is connected with the normally closed terminal of the relay K1, the control end of the relay K1 is connected with the normally open terminal of the relay K2, the normally closed terminal of the relay K2 is suspended, and the control end of the relay K2 is connected with the power master control module; the diode D2 is connected in parallel with the control end of the relay K2. The normally closed terminal of the relay K1 is also connected with the switching power supply module.

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