Charging system for emergency rescue in scenic area

Abstract

The utility model provides a charging system for scenic spot emergency rescue, and belongs to the technical field of charging. The charging system for scenic spot emergency rescue comprises a power supply module, a first voltage adaptation module, a second voltage adaptation module, a control module, a first control switch, a second control switch and a boosting module, the power supply module is connected with the first end of the first control switch and the first end of the second control switch. The first voltage adaptation module and the second voltage adaptation module are both connected with the control module; the control module is connected with the control end of the first control switch and the control end of the second control switch. The second end of the first control switch is used for being connected with emergency rescue equipment; the second end of the second control switch is connected with the first end of the boosting module, and the second end of the boosting module is connected with the emergency rescue equipment. The problem that charging is not timely can be solved.

Description

Technical Field

[0001] This disclosure relates to the field of charging technology, and in particular to a charging system for emergency rescue in scenic areas. Background Technology

[0002] In scenic areas, emergency medical care is crucial. With large numbers of tourists and high mobility, sudden illnesses and accidental injuries are frequent occurrences. Currently, most emergency medical equipment in scenic areas, such as defibrillators and electrocardiogram monitors, is mobile, providing critical support for saving lives. However, this equipment faces a serious power supply problem. Once the power runs out, it cannot be used properly in critical moments, potentially delaying treatment and posing a significant threat to the lives of tourists.

[0003] Therefore, there is an urgent need for a timely and reliable charging system to charge emergency medical equipment. Utility Model Content

[0004] This disclosure provides a charging system for emergency medical care in scenic areas to solve the problem of untimely charging.

[0005] This disclosure provides a charging system for emergency medical care in scenic areas, comprising:

[0006] The power supply module, the first voltage adapter module, the second voltage adapter module, the control module, the first control switch, the second control switch, and the boost module;

[0007] The power supply module is connected to the first terminal of the first control switch and the first terminal of the second control switch, respectively.

[0008] Both the first voltage adapter module and the second voltage adapter module are connected to the control module;

[0009] The control module is connected to the control terminal of the first control switch and the control terminal of the second control switch, respectively.

[0010] The second terminal of the first control switch is used to connect to emergency medical equipment;

[0011] The second terminal of the second control switch is connected to the first terminal of the boost module, and the second terminal of the boost module is connected to the emergency rescue equipment.

[0012] In one exemplary embodiment of this disclosure, the power supply module includes a first power supply, a second power supply, and a power selection unit;

[0013] Both the first power supply and the second power supply are connected to the power selection unit;

[0014] The power selection unit is connected to the first terminal of the first control switch and the first terminal of the second control switch, respectively.

[0015] The primary power supply is VCC, and the secondary power supply is backup power supply E1.

[0016] In one exemplary embodiment of this disclosure, the power selection unit includes a Zener diode D1, resistors R1, R2, R3, R12, transistors Q1, Q2, R4, R5, and Q3.

[0017] The cathode of Zener diode D1 is connected to the power supply VCC, and the anode of Zener diode D1 is grounded through resistor R12.

[0018] The anode of Zener diode D1 is connected to the first end of resistor R3, the second end of resistor R3 is connected to the base of transistor Q2, the collector of transistor Q2 is connected to the first end of resistor R2, and the emitter of transistor Q2 is grounded.

[0019] The base of transistor Q1 is connected to the second end of resistor R2, the emitter of transistor Q1 is connected to power supply VCC, and the collector of transistor Q1 is connected to the first end of the first control switch and the first end of the second control switch, respectively.

[0020] Resistors R1 and R2 are connected in parallel;

[0021] The first end of resistor R4 is connected to the first end of resistor R2, the second end of resistor R4 is connected to the base of transistor Q3, the emitter of transistor Q3 is connected to the first end of resistor R5, and the second end of resistor R5 is connected to the collector of transistor Q1, the first end of the first control switch, and the first end of the second control switch, respectively.

[0022] The collector of transistor Q3 is connected to the positive terminal of backup power supply E1, and the negative terminal of backup power supply E1 is grounded.

[0023] In one exemplary embodiment of this disclosure, the power selection unit further includes a diode D3;

[0024] The anode of diode D3 is connected to the power supply VCC, and the cathode of diode D3 is connected to the positive terminal of the backup power supply E1.

[0025] In one exemplary embodiment of this disclosure, the power selection unit further includes resistor R10, resistor R11, Zener diode D2, and transistor Q6;

[0026] Resistors R10 and R11 are both connected in parallel with the backup power supply E1;

[0027] The first end of resistor R10 is connected to the collector of transistor Q3, the second end of resistor R10 is connected to the first end of resistor R11, and the second end of resistor R11 is grounded.

[0028] The cathode of Zener diode D2 is connected to the second end of resistor R10 and the first end of resistor R11, respectively, and the anode of Zener diode D2 is connected to the base of transistor Q6.

[0029] The emitter of transistor Q6 is connected to the power supply VCC, and the collector of transistor Q6 is connected to the anode of diode D3.

[0030] In one exemplary embodiment of this disclosure, the first voltage adapter module includes a resistor R6, a push-button switch SW4, a transistor Q4, and a resistor R7;

[0031] The first end of resistor R6 is connected to the reference voltage Vref1 and the first end of push button switch SW4 respectively, and the second end of resistor R6 is connected to power supply VCC1.

[0032] The base of transistor Q4 is connected to the second terminal of push-button switch SW4, the collector of transistor Q4 is connected to power supply VCC1, the emitter of transistor Q4 is connected to the first terminal of resistor R7, and the second terminal of resistor R7 is connected to the control module.

[0033] In one exemplary embodiment of this disclosure, the second voltage adapter module includes a resistor R9, a push-button switch SW5, a transistor Q5, and a resistor R8;

[0034] The first end of resistor R9 is connected to the reference voltage Vref2 and the first end of push button switch SW5 respectively, and the second end of resistor R9 is connected to power supply VCC2.

[0035] The base of transistor Q5 is connected to the second terminal of push-button switch SW5, the collector of transistor Q5 is connected to power supply VCC2, the emitter of transistor Q5 is connected to the first terminal of resistor R8, and the second terminal of resistor R8 is connected to the control module.

[0036] In one exemplary embodiment of this disclosure, a charging system for emergency rescue in scenic areas also includes a communication module;

[0037] The communication module is connected to the control module.

[0038] The beneficial effects of the charging system for emergency medical care in scenic areas provided in this embodiment are as follows:

[0039] The power supply module can promptly supply power to emergency rescue equipment and is connected to the first and second control switches. It can select whether to boost the voltage according to the needs of the emergency rescue equipment, ensuring a stable and safe power supply for the equipment under different voltage requirements. Simultaneously, the coordinated operation of the first and second voltage adaptation modules with the control module allows the system to automatically adjust the output voltage according to the specific voltage requirements of the emergency rescue equipment, greatly improving the compatibility and adaptability of the power supply. Therefore, this disclosure improves the timeliness and reliability of charging emergency rescue equipment. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a charging system for emergency rescue in scenic areas provided in an embodiment of this disclosure;

[0042] Figure 2 This is a schematic diagram of the power supply module provided in an embodiment of this disclosure;

[0043] Figure 3 This is a schematic diagram of the circuit structure of the power selection unit provided in an embodiment of this disclosure. Detailed Implementation

[0044] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this solution will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this solution, not all of them. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this solution.

[0045] The term "comprising" and any other variations thereof in the specification, claims, and accompanying drawings of this invention mean "including but not limited to," and are intended to cover a non-exclusive inclusion, not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish different objects, not to describe a specific order.

[0046] The implementation of this disclosure will be described in detail below with reference to the specific accompanying drawings:

[0047] Figure 1This is a schematic diagram of a charging system for emergency medical care in scenic areas, provided as an embodiment of this disclosure. (Refer to...) Figure 1 The charging system for emergency medical care in scenic areas includes:

[0048] The power supply module 101, the first voltage adapter module 102, the second voltage adapter module 103, the control module 104, the first control switch 105, the second control switch 106, and the boost module 107;

[0049] The power supply module 101 is connected to the first terminal of the first control switch 105 and the first terminal of the second control switch 106 respectively;

[0050] The first voltage adapter module 102 and the second voltage adapter module 103 are both connected to the control module 104.

[0051] The control module 104 is connected to the control terminal of the first control switch 105 and the control terminal of the second control switch 106, respectively.

[0052] The second terminal of the first control switch 105 is used to connect to emergency medical equipment;

[0053] The second terminal of the second control switch 106 is connected to the first terminal of the boost module 107, and the second terminal of the boost module 107 is connected to the emergency rescue equipment.

[0054] In this embodiment, the power supply module 101 is configured to provide power to the entire charging system. The power supply module 101 can be mains power or a battery pack, providing emergency power in the event of mains power outage or other situations.

[0055] Considering that the voltage required by emergency medical equipment may vary, the voltage output of the power supply module 101 can be adjusted to a suitable value according to the needs of the emergency medical equipment. Emergency medical equipment includes devices such as defibrillators, electrocardiogram monitors, and portable ventilators.

[0056] The first voltage adapter module 102 is configured to control the power supply module 101 to provide the original voltage to the emergency rescue equipment; the second voltage adapter module 103 is configured to control the output voltage of the power supply module 101 to boost the voltage before supplying it to the emergency rescue equipment.

[0057] The control module 104 is configured to receive signals from the first voltage adapter module 102 and the second voltage adapter module 103, and according to the signal from the first voltage adapter module 102, the control module 104 controls the closing and opening of the first control switch 105; and according to the signal from the second voltage adapter module 103, the control module 104 controls the closing and opening of the second control switch 106.

[0058] The first control switch 105 is configured to control the direct power supply path between the power supply module 101 and the emergency rescue equipment, and the second control switch 106 is configured to control the path between the power supply module 101 and the boost module 107, determining whether to supply electrical energy to the boost module 107 for boosting. When it is necessary to boost the voltage output by the power supply module 101, the control module 104 will control the second control switch 106 to close, allowing electrical energy to enter the boost module 107.

[0059] When the control module 104 sends a closing command to the first control switch 105, the connection between the power supply module 101 and the emergency rescue equipment can be established; when the control module 104 sends a closing command to the second control switch 106, the power supply module 101 is connected to the boost module 107.

[0060] The boost module 107 is configured to increase the input voltage to the voltage value required by the emergency medical equipment.

[0061] As can be seen from the above, the power supply module 101 can promptly supply power to the emergency rescue equipment and, connected to the first control switch 105 and the second control switch 106, can select whether to boost the voltage according to the needs of the emergency rescue equipment, ensuring a stable and safe power supply for the emergency rescue equipment under different voltage requirements. Simultaneously, the coordinated operation of the first voltage adaptation module 102, the second voltage adaptation module 103, and the control module 104 enables the system to automatically adjust the output voltage according to the specific voltage requirements of the emergency rescue equipment, greatly improving the compatibility and adaptability of the power supply. Therefore, this disclosure can improve the timeliness and reliability of charging emergency rescue equipment.

[0062] In one embodiment of this disclosure, reference is made to Figure 2 and Figure 3 The power supply module 101 includes a first power supply 201, a second power supply 202, and a power selection unit 203;

[0063] Both the first power supply 201 and the second power supply 202 are connected to the power selection unit 203;

[0064] The power selection unit 203 is connected to the first terminal of the first control switch 105 and the first terminal of the second control switch 106, respectively.

[0065] The first power supply 201 is power supply VCC, and the second power supply 202 is backup power supply E1.

[0066] In this embodiment, the first power supply 201 is the main power supply, which can be a DC power supply obtained by rectifying, filtering and stepping down the mains power; the second power supply 202 is the backup power supply, which can be a battery pack. When the first power supply 201 fails or is interrupted, it takes over the power supply of the emergency rescue equipment to ensure the uninterrupted operation of the charging system.

[0067] The power selection unit 203 is configured to select a suitable power supply to power subsequent modules based on the status of the first power supply 201 and the second power supply 202, thereby ensuring the stability and reliability of the charging system.

[0068] When the first power supply 201 is normal, power is supplied by the first power supply 201; when the first power supply 201 malfunctions, it is quickly switched to the second power supply 202 to ensure uninterrupted power supply to the charging system.

[0069] As can be seen from the above, this embodiment integrates the first power supply 201 (power supply VCC) and the second power supply 202 (backup power supply E1), and is equipped with a power selection unit 203, so that the power supply module 101 can seamlessly switch to the backup power supply when the main power supply fails, ensuring the continuous and stable operation of the charging system.

[0070] In one embodiment of this disclosure, reference is made to Figure 3 The power selection unit 203 includes a Zener diode D1, resistors R1, R2, R3, and R12, transistors Q1 and Q2, resistors R4 and R5, and transistor Q3.

[0071] The cathode of Zener diode D1 is connected to the power supply VCC, and the anode of Zener diode D1 is grounded through resistor R12.

[0072] The anode of Zener diode D1 is connected to the first end of resistor R3, the second end of resistor R3 is connected to the base of transistor Q2, the collector of transistor Q2 is connected to the first end of resistor R2, and the emitter of transistor Q2 is grounded.

[0073] The base of transistor Q1 is connected to the second end of resistor R2, the emitter of transistor Q1 is connected to power supply VCC, and the collector of transistor Q1 is connected to the first end of the first control switch 105 and the first end of the second control switch 106, respectively.

[0074] Resistors R1 and R2 are connected in parallel;

[0075] The first end of resistor R4 is connected to the first end of resistor R2, the second end of resistor R4 is connected to the base of transistor Q3, the emitter of transistor Q3 is connected to the first end of resistor R5, and the second end of resistor R5 is connected to the collector of transistor Q1, the first end of the first control switch 105, and the first end of the second control switch 106, respectively.

[0076] The collector of transistor Q3 is connected to the positive terminal of backup power supply E1, and the negative terminal of backup power supply E1 is grounded.

[0077] In this embodiment, Zener diode D1 is used to detect the voltage of the power supply VCC. When the power supply VCC voltage is normal, Zener diode D1 breaks down and conducts in reverse.

[0078] When the power supply VCC is normal, the Zener diode D1 is turned on, generating a voltage across resistor R12. This voltage across resistor R12 provides a bias voltage to the base of transistor Q2 through resistor R3, causing transistor Q2 to turn on. At this time, the collector potential of transistor Q2 is pulled low.

[0079] When transistor Q2 is turned on, its collector potential is pulled down, which in turn lowers the base potential of transistor Q1. Since transistor Q1 is a PNP transistor, the decrease in base potential turns it on, thereby connecting the power supply VCC to the first terminal of the first control switch 105 and the second control switch 106 to supply power to the subsequent circuit.

[0080] When the power supply VCC is normal, transistor Q2 is turned on, the potential at the first terminal of resistor R2 is pulled low, and the base potential of transistor Q3 is also lowered through resistor R4, causing transistor Q3 to turn off, and the backup power supply E1 does not participate in power supply. When the power supply VCC is abnormal (such as low voltage or power failure), Zener diode D1 is turned off, transistor Q2 is turned off, the potential at the first terminal of resistor R2 rises, and the base of transistor Q3 receives sufficient bias voltage through resistor R4, causing it to turn on. The backup power supply E1 supplies power to the subsequent circuits through transistor Q3 and resistor R5.

[0081] As can be seen from the above, this embodiment achieves intelligent selection and management of dual power supplies through the combination of various components. It can effectively monitor the status of the main power supply VCC and automatically switch to the backup power supply E1 in case of abnormality, ensuring power supply continuity and improving the stability and reliability of the charging system.

[0082] In one embodiment of this disclosure, reference is made to Figure 3 The power selection unit 203 also includes a diode D3;

[0083] The anode of diode D3 is connected to the power supply VCC, and the cathode of diode D3 is connected to the positive terminal of the backup power supply E1.

[0084] In one embodiment of this disclosure, reference is made to Figure 3 The power selection unit 203 also includes resistors R10 and R11, Zener diode D2 and transistor Q6;

[0085] Resistors R10 and R11 are both connected in parallel with the backup power supply E1;

[0086] The first end of resistor R10 is connected to the collector of transistor Q3, the second end of resistor R10 is connected to the first end of resistor R11, and the second end of resistor R11 is grounded.

[0087] The cathode of Zener diode D2 is connected to the second end of resistor R10 and the first end of resistor R11, respectively, and the anode of Zener diode D2 is connected to the base of transistor Q6.

[0088] The emitter of transistor Q6 is connected to the power supply VCC, and the collector of transistor Q6 is connected to the anode of diode D3.

[0089] In this embodiment, when the power supply VCC is operating normally, the backup power supply E1 can be charged through diode D3. When the voltage of the power supply VCC gradually rises to a level higher than that of the backup power supply E1, diode D3 turns on, and the power supply VCC begins to charge the backup power supply E1.

[0090] Resistors R10 and R11 form a voltage divider circuit for sampling the voltage of the backup power supply E1. In this embodiment, a sampling voltage can be obtained at the connection point between resistors R10 and R11 (i.e., the second end of resistor R10 and the first end of resistor R11). Zener diode D2 is used to monitor the voltage sampling voltage of the backup power supply E1. When the voltage sampling voltage of the backup power supply E1 is too low and needs to be charged, Zener diode D2 is not turned on. At this time, the base of transistor Q6 is at a low level, transistor Q6 is turned on, and power supply VCC charges the backup power supply E1. When the backup power supply E1 is fully charged, causing the voltage sampling voltage to exceed the voltage regulation value of Zener diode D2, Zener diode D2 breaks down in reverse and conducts, providing a bias voltage to the base of transistor Q6. At this time, the base of transistor Q6 is at a high level, transistor Q6 is turned off, and power supply VCC no longer charges the backup power supply E1. This effectively prevents overcharging of the backup power supply E1 and avoids damage to circuit components due to excessive voltage.

[0091] As can be seen from the above, this embodiment achieves control and protection of the power supply VCC and the backup power supply E1, enhances the reliability and stability of power switching, and further improves the safety and adaptability of the entire charging system.

[0092] In one embodiment of this disclosure, reference is made to Figure 3 The first voltage adapter module 102 includes a resistor R6, a push-button switch SW4, a transistor Q4, and a resistor R7.

[0093] The first end of resistor R6 is connected to the reference voltage Vref1 and the first end of push button switch SW4 respectively, and the second end of resistor R6 is connected to power supply VCC1.

[0094] The base of transistor Q4 is connected to the second terminal of push button switch SW4, the collector of transistor Q4 is connected to power supply VCC1, the emitter of transistor Q4 is connected to the first terminal of resistor R7, and the second terminal of resistor R7 is connected to control module 104.

[0095] In one embodiment of this disclosure, reference is made to Figure 3 The second voltage adapter module 103 includes a resistor R9, a push-button switch SW5, a transistor Q5, and a resistor R8.

[0096] The first end of resistor R9 is connected to the reference voltage Vref2 and the first end of push button switch SW5 respectively, and the second end of resistor R9 is connected to power supply VCC2.

[0097] The base of transistor Q5 is connected to the second terminal of push button switch SW5, the collector of transistor Q5 is connected to power supply VCC2, the emitter of transistor Q5 is connected to the first terminal of resistor R8, and the second terminal of resistor R8 is connected to control module 104.

[0098] In this embodiment, when the push-button switch SW4 is open, there is no bias voltage at the base of transistor Q4, and transistor Q4 is in the off state. At this time, there is no voltage output at the emitter of transistor Q4, no current flows through resistor R7, and the voltage received by control module 104 is low (typically close to 0V).

[0099] When push-button switch SW4 is closed, resistor R7 divides the power supply VCC1, providing a bias voltage to the base of transistor Q4. When the base voltage reaches the turn-on threshold of transistor Q4, transistor Q4 turns on. The voltage of power supply VCC1 is transmitted to the emitter through the turned-on transistor Q4, and then output to control module 104 through resistor R7. Control module 104 receives the signal to close the first control switch 105.

[0100] The reference voltage Vref1 can be set according to the actual situation, such as 5V. When this voltage is selected, the first control switch 105 is closed, which allows the power supply module 101 to directly supply power to the emergency rescue equipment.

[0101] In this embodiment, when the push-button switch SW5 is open, there is no bias voltage at the base of transistor Q5, and transistor Q5 is in the cutoff state. At this time, there is no voltage output at the emitter of transistor Q5, no current flows through resistor R8, and the voltage received by control module 104 is low (usually close to 0V).

[0102] When push-button switch SW5 is closed, resistor R8 divides the power supply VCC2, providing a bias voltage to the base of transistor Q5. When the base voltage reaches the conduction threshold of transistor Q5, transistor Q5 conducts. The voltage of power supply VCC2 is transmitted to the emitter through the conducting transistor Q5, and then output to control module 104 through resistor R8. Control module 104 receives the signal to close the second control switch 106.

[0103] The reference voltage Vref2 can be set according to the actual situation, such as 10V. When this voltage is selected, the second control switch 106 is closed, which can boost the output voltage of the power supply module 101 and then supply power to the emergency rescue equipment.

[0104] As can be seen from the above, this embodiment improves the efficiency and stability of voltage adaptation, provides a suitable voltage supply for emergency rescue equipment, and ensures the reliability of the charging system.

[0105] In one embodiment of this disclosure, reference is made to Figure 1 A charging system for emergency rescue in scenic areas, also including a communication module 108;

[0106] The communication module 108 is connected to the control module 104.

[0107] In this embodiment, the control module 104 is connected to the terminal via the communication module 108. The communication module 108 can upload data collected by the control module 104, such as the charging status, power information, and device connection status of the emergency rescue equipment, to the remote monitoring center. Scenic area managers can monitor the status of each emergency rescue device in real time through the monitoring center and make preparations for equipment maintenance and allocation in advance.

[0108] As can be seen from the above, this embodiment can realize remote monitoring and data transmission, which facilitates timely acquisition of the status information of emergency rescue equipment and remote dispatch, greatly improving the speed of emergency response and management efficiency.

[0109] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A charging system for scenic spot emergency rescue, characterized in that, The power supply module, the first voltage adaptation module, the second voltage adaptation module, the control module, the first control switch, the second control switch and the voltage boosting module are comprised; The power supply module is connected with the first end of the first control switch and the first end of the second control switch respectively; The first voltage adaptation module and the second voltage adaptation module are connected with the control module; The control module is connected with the control end of the first control switch and the control end of the second control switch respectively; The second end of the first control switch is used for connecting with the emergency rescue equipment; The second end of the second control switch is connected with the first end of the voltage boosting module, and the second end of the voltage boosting module is connected with the emergency rescue equipment.

2. The charging system for emergency rescue in scenic spots according to claim 1, characterized in that, The power supply module comprises a first power supply, a second power supply and a power supply selection unit; The first power supply and the second power supply are connected with the power supply selection unit; The power supply selection unit is connected with the first end of the first control switch and the first end of the second control switch respectively; The first power supply is a power supply VCC, and the second power supply is a backup power supply E1.

3. The charging system for emergency rescue in scenic spots according to claim 2, characterized in that, The power supply selection unit comprises a voltage stabilizing tube D1, a resistor R1, a resistor R2, a resistor R3, a resistor R12, a triode Q1, a triode Q2, a resistor R4, a resistor R5 and a triode Q3; The cathode of the voltage stabilizing tube D1 is connected with the power supply VCC, and the anode of the voltage stabilizing tube D1 is grounded through the resistor R12; The anode of the voltage stabilizing tube D1 is connected with the first end of the resistor R3, the second end of the resistor R3 is connected with the base of the triode Q2, the collector of the triode Q2 is connected with the first end of the resistor R2, and the emitter of the triode Q2 is grounded; The base of the triode Q1 is connected with the second end of the resistor R2, the emitter of the triode Q1 is connected with the power supply VCC, and the collector of the triode Q1 is connected with the first end of the first control switch and the first end of the second control switch respectively; The resistor R1 and the resistor R2 are connected in parallel; The first end of the resistor R4 is connected with the first end of the resistor R2, the second end of the resistor R4 is connected with the base of the triode Q3, the emitter of the triode Q3 is connected with the first end of the resistor R5, and the second end of the resistor R5 is connected with the collector of the triode Q1, the first end of the first control switch and the first end of the second control switch respectively; The collector of the triode Q3 is connected with the positive pole of the backup power supply E1, and the negative pole of the backup power supply E1 is grounded.

4. The charging system for emergency rescue in scenic spots according to claim 3, characterized in that, The power supply selection unit further comprises a diode D3; The anode of the diode D3 is connected with the power supply VCC, and the cathode of the diode D3 is connected with the positive pole of the backup power supply E1.

5. The charging system for emergency rescue in scenic spots according to claim 4, characterized in that, The power supply selection unit further comprises a resistor R10, a resistor R11, a voltage stabilizing tube D2 and a triode Q6; The resistor R10 and the resistor R11 are connected in parallel with the backup power supply E1; The first end of the resistor R10 is connected with the collector of the triode Q3, the second end of the resistor R10 is connected with the first end of the resistor R11, and the second end of the resistor R11 is grounded. The cathode of the voltage stabilizing tube D2 is connected with the second end of the resistor R10 and the first end of the resistor R11 respectively, and the anode of the voltage stabilizing tube D2 is connected with the base of the triode Q6; The emitter of the triode Q6 is connected with the power supply VCC, and the collector of the triode Q6 is connected with the anode of the diode D3.

6. The charging system for emergency rescue in scenic spots according to claim 1, characterized in that, The first voltage adaptation module comprises a resistor R6, a key switch SW4, a triode Q4 and a resistor R7; The first end of the resistor R6 is connected with the reference voltage Vref1 and the first end of the key switch SW4 respectively, and the second end of the resistor R6 is connected with the power supply VCC1; The base of the triode Q4 is connected with the second end of the key switch SW4, the collector of the triode Q4 is connected with the power supply VCC1, the emitter of the triode Q4 is connected with the first end of the resistor R7, and the second end of the resistor R7 is connected with the control module.

7. The charging system for emergency rescue in scenic spots according to claim 1, characterized in that, The second voltage adaptation module comprises a resistor R9, a key switch SW5, a triode Q5 and a resistor R8; The first end of the resistor R9 is connected with the reference voltage Vref2 and the first end of the key switch SW5 respectively, and the second end of the resistor R9 is connected with the power supply VCC2; The base of the triode Q5 is connected with the second end of the key switch SW5, the collector of the triode Q5 is connected with the power supply VCC2, the emitter of the triode Q5 is connected with the first end of the resistor R8, and the second end of the resistor R8 is connected with the control module.

8. The charging system for emergency rescue in scenic spots according to claim 1, characterized in that, Further comprising a communication module; The communication module is connected with the control module.

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