Fire-fighting power supply emergency battery management method

Abstract

The invention relates to the technical field of emergency protection, and discloses a fire-fighting power supply emergency battery management method, which comprises the following steps of S1, connecting a battery I, a battery II and a battery III in series to form a standby power supply; s2, respectively connecting a main control module for detecting the voltage of the battery and a power supply control module for controlling the switching of the positive electrode and the negative electrode of the battery to two ends of the standby power supply; and S3, when the fire-fighting main power supply breaks down, the standby power supply is operated, and when the voltage of any one of the first battery, the second battery and the third battery is abnormal, the other two batteries are connected in series to supply power. When the batteries of the fire-fighting emergency power supply are damaged and are not replaced in time or are damaged in an emergency, the main control module can actively switch any two batteries to supply power to the emergency power supply, so that the reliability guarantee of system operation is improved, and the problem that when the three batteries connected in series are used as the fire-fighting emergency power supply, the power supply cannot be replaced in time is solved. Wherein under the condition that one battery is abnormal or disconnected, the whole battery pack cannot supply power to the fire-fighting power supply system.

Description

Technical Field

[0001] The present invention relates to the field of emergency protection technology, in particular to the field of backup power supply for fire emergency systems, and specifically to a fire power supply emergency battery management method. Background Art

[0002] The backup power supply of the fire emergency system is a key device to ensure that the fire electrical equipment can continue to operate in emergency situations such as fire. The fire electrical equipment is powered by the main power supply under normal conditions, and by the fire backup power supply in the event of a fire. When the main power supply is cut off for any reason, the fire backup power supply should be able to automatically switch on to ensure the reliability of fire power.

[0003] The emergency power supply control currently used in fire emergency power supply systems mainly focuses on automatically switching to a backup power supply when the main power supply fails.

[0004] The rated voltage of most fire emergency power supply systems on the market is 36V, and the rated voltage of the lead-acid battery is 12V. The backup power supply of the fire emergency power supply is composed of three 12V rated voltage lead-acid batteries connected in series to power the system in an emergency. When an emergency occurs in the system, the emergency management system switches to three 12V lead-acid batteries for direct power supply.

[0005] In the prior art, when three 12V lead-acid batteries are used as backup power sources for fire emergency control power, the total positive and negative electrodes of the batteries are connected to the mainboard. When one set of wiring is disconnected or a single battery is damaged, the entire battery pack cannot supply power to the fire power supply system at all, and the system stops emergency operation.

[0006] Therefore, we need to propose a fire power supply emergency battery management method. If a single battery is disconnected or abnormal, the backup power supply can continue to maintain the emergency work of the fire emergency power supply. Summary of the invention

[0007] The purpose of the present invention is to provide a fire power supply emergency battery management method. When the fire emergency power supply battery is damaged and has not been replaced in time, or is damaged in an emergency situation, the main control module can actively switch any two batteries to supply power for the emergency power supply, thereby increasing the reliability of system operation and solving the problem that when three batteries in series are currently used as fire backup power supplies, if one of the batteries is abnormal or disconnected, the entire battery pack cannot supply power to the fire power supply system at all, thereby solving the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a fire power supply emergency battery management method, comprising the following steps:

[0009] S1, take three batteries, record them as battery one, battery two, and battery three, and connect battery one, battery two, and battery three in series to form a backup power supply;

[0010] S2, connecting a main control module for detecting battery voltage and a power control module for controlling the switching of positive and negative poles of the battery to the two ends of the backup power supply respectively, connecting the main control module to the power control module, and connecting a DC-DC module for power supply to the main control module;

[0011] S3, when the main fire power supply fails, the backup power supply is operated. When the voltage of any one of battery 1, battery 2, and battery 3 is abnormal, the other two batteries are connected in series to supply power.

[0012] Preferably, the battery one, battery two and battery three are all lead-acid batteries with a rated voltage of 12V.

[0013] Preferably, the negative electrode of the battery one is recorded as BAT1-, the positive electrode of the battery one is recorded as BAT1+, the negative electrode of the battery two is recorded as BAT2-, the positive electrode of the battery two is recorded as BAT2+, the negative electrode of the battery three is recorded as BAT3-, and the positive electrode of the battery three is recorded as BAT3+.

[0014] Preferably, the power control module includes a battery one control module, a battery two control module, and a battery three control module. The battery one control module is used to control the positive and negative pole switching of battery one, the battery two control module is used to control the positive and negative pole switching of battery two, and the battery three control module is used to control the positive and negative pole switching of battery three.

[0015] Preferably, an independent battery one voltage detection module is provided inside the battery one, an independent battery two voltage detection module is provided inside the battery two, and an independent battery three voltage detection module is provided inside the battery three.

[0016] Preferably, the battery one control module is electrically connected to the battery one voltage detection module, the battery two control module is electrically connected to the battery two voltage detection module, and the battery three control module is electrically connected to the battery three voltage detection module.

[0017] Preferably, the battery one control module includes a trigger JK1 and a transistor Q1, a diode D1 is connected between pin 1 and pin 2 of the trigger JK1, pin 5 of the trigger JK1 is connected to the total negative electrode of the battery and the negative electrode BAT1- of battery one, and pin 4 of the trigger JK1 is connected to the positive electrode BAT1+ of battery one;

[0018] A resistor R1 is connected between pin 1 of the trigger JK1 and the collector of the transistor Q1 , a resistor R7 is connected between the base and emitter of the transistor Q1 , and a resistor R4 is connected to the base of the transistor Q1 .

[0019] Preferably, the battery 2 control module includes a trigger JK2 and a transistor Q2, a diode D2 is connected between pin 1 and pin 2 of the trigger JK2, pin 5 of the trigger JK2 is connected to pin 3 of the trigger JK1, and pin 5 of the trigger JK2 is connected to the negative electrode BAT2- of the battery 2, and pin 4 of the trigger JK2 is connected to the positive electrode BAT2+ of the battery 2;

[0020] A resistor R2 is connected between pin 1 of the trigger JK2 and the collector of the transistor Q2, a resistor R8 is connected between the base and emitter of the transistor Q2, and a resistor R5 is connected to the base of the transistor Q2.

[0021] Preferably, the battery three control module includes a trigger JK3 and a transistor Q3, a diode D3 is connected between pin 1 and pin 2 of the trigger JK3, pin 5 of the trigger JK3 is connected to pin 3 of the trigger JK2, and pin 5 of the trigger JK3 is connected to the negative electrode BAT3- of battery three, pin 4 of the trigger JK3 is connected to the positive electrode BAT3+ of battery three, and pin 3 of the trigger JK3 is connected to the total negative electrode of the battery;

[0022] A resistor R3 is connected between pin 1 of the trigger JK3 and the collector of the transistor Q3 , a resistor R9 is connected between the base and emitter of the transistor Q3 , and a resistor R6 is connected to the base of the transistor Q3 .

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When the fire emergency power supply battery is damaged and has not been replaced in time, or is damaged in an emergency situation, the main control module can actively switch any two batteries to supply power for the emergency power supply, thereby increasing the reliability of system operation and solving the problem that when one of the three batteries in series is abnormal or disconnected as a fire backup power supply, the entire battery pack cannot supply power to the fire power supply system at all. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a system block diagram of the present invention;

[0026] Figure 2 is a circuit diagram of a power control module of the present invention;

[0027] Figure 3 It is a principle block diagram of the operating state of the battery pack in the backup power supply of the present invention;

[0028] Figure 4 It is a flowchart of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-4 The present invention provides a technical solution: a fire emergency power supply emergency battery management method, in a fire emergency power supply system where multiple batteries are connected in series as a backup power supply, if the battery is disconnected or abnormal, the backup power supply can continue to maintain the emergency work of the fire emergency power supply, including the following steps:

[0031] S1, take three batteries, record them as battery one, battery two, and battery three, and connect battery one, battery two, and battery three in series to form a backup power supply;

[0032] S2, connecting a main control module for detecting battery voltage and a power control module for controlling the switching of positive and negative poles of the battery to the two ends of the backup power supply respectively, connecting the main control module to the power control module, and connecting a DC-DC module for power supply to the main control module;

[0033] The DC-DC module is used to supply power to the main control module, the main control module is used to control the power control module and read the voltage detection data of the three batteries, and the power control module is used to detect the voltage of the battery.

[0034] S3, when the main fire power supply fails, the backup power supply is operated. When the voltage of any one of battery 1, battery 2, and battery 3 is abnormal, the other two batteries are connected in series to supply power.

[0035] The operating status of the backup power supply is as follows: Figure 3 As shown, when the battery one control module detects that the battery one is normal, the battery two control module detects that the battery two is normal, and the battery three control module detects that the battery three is normal, the three batteries work and supply power simultaneously.

[0036] When the battery one control module detects that battery one is abnormal, the battery two control module detects that battery two is normal, and the battery three control module detects that battery three is normal, battery one does not work, and batteries two and three work to supply power.

[0037] When the battery two control module detects that the battery two is abnormal, the battery one control module detects that the battery one is normal, and the battery three control module detects that the battery three is normal, the battery two does not work, and the battery one and the battery three work to supply power.

[0038] When the battery three control module detects that battery three is abnormal, the battery one control module detects that battery one is normal, and the battery two control module detects that battery two is normal, battery three does not work, and batteries one and two work to supply power.

[0039] The battery 1, battery 2 and battery 3 are all lead-acid batteries with a rated voltage of 12V.

[0040] The negative electrode of the battery one is recorded as BAT1-, the positive electrode of the battery one is recorded as BAT1+, the negative electrode of the battery two is recorded as BAT2-, the positive electrode of the battery two is recorded as BAT2+, the negative electrode of the battery three is recorded as BAT3-, and the positive electrode of the battery three is recorded as BAT3+.

[0041] The power control module includes a battery one control module, a battery two control module, and a battery three control module. The battery one control module is used to control the positive and negative pole switching of battery one, the battery two control module is used to control the positive and negative pole switching of battery two, and the battery three control module is used to control the positive and negative pole switching of battery three.

[0042] An independent battery one voltage detection module is arranged inside the battery one, an independent battery two voltage detection module is arranged inside the battery two, and an independent battery three voltage detection module is arranged inside the battery three.

[0043] The battery one control module is electrically connected to the battery one voltage detection module, the battery two control module is electrically connected to the battery two voltage detection module, and the battery three control module is electrically connected to the battery three voltage detection module.

[0044] The battery one control module includes a trigger JK1 and a transistor Q1, a diode D1 is connected between pins 1 and 2 of the trigger JK1, pin 5 of the trigger JK1 is connected to the total negative electrode of the battery and the negative electrode BAT1- of battery one, and pin 4 of the trigger JK1 is connected to the positive electrode BAT1+ of battery one;

[0045] A resistor R1 is connected between pin 1 of the trigger JK1 and the collector of the transistor Q1 , a resistor R7 is connected between the base and emitter of the transistor Q1 , and a resistor R4 is connected to the base of the transistor Q1 .

[0046] The battery 2 control module includes a trigger JK2 and a transistor Q2, a diode D2 is connected between pin 1 and pin 2 of the trigger JK2, pin 5 of the trigger JK2 is connected to pin 3 of the trigger JK1, and pin 5 of the trigger JK2 is connected to the negative electrode BAT2- of the battery 2, and pin 4 of the trigger JK2 is connected to the positive electrode BAT2+ of the battery 2;

[0047] A resistor R2 is connected between pin 1 of the trigger JK2 and the collector of the transistor Q2, a resistor R8 is connected between the base and emitter of the transistor Q2, and a resistor R5 is connected to the base of the transistor Q2.

[0048] The battery three control module includes a trigger JK3 and a transistor Q3, a diode D3 is connected between pin 1 and pin 2 of the trigger JK3, pin 5 of the trigger JK3 is connected to pin 3 of the trigger JK2, and pin 5 of the trigger JK3 is connected to the negative electrode BAT3- of the battery three, pin 4 of the trigger JK3 is connected to the positive electrode BAT3+ of the battery three, and pin 3 of the trigger JK3 is connected to the total negative electrode of the battery;

[0049] A resistor R3 is connected between pin 1 of the trigger JK3 and the collector of the transistor Q3 , a resistor R9 is connected between the base and emitter of the transistor Q3 , and a resistor R6 is connected to the base of the transistor Q3 .

[0050] It should be noted that pin 2 of trigger JK1, pin 2 of trigger JK2, and pin 2 of trigger JK3 are all connected to a 12V voltage.

[0051] During operation: If battery 1 is abnormal or disconnected, the battery 1 control module detects that the battery 1 voltage is abnormal, and sends a control signal to the battery 1 control module to connect pins 3 and 5 of the control trigger JK1. The emergency power supply is supplied by battery 2 and battery 3 in series.

[0052] If battery 2 is abnormal or disconnected, the battery 2 control module detects the abnormal voltage of battery 2 and sends a control signal to the battery 2 control module to connect pins 3 and 5 of the control trigger JK2. The emergency power supply is supplied by battery 1 and battery 3 in series.

[0053] If battery three is abnormal or disconnected, the battery three control module detects that the battery three voltage is abnormal, and sends a control signal to the battery three control module to control the connection between pin 3 and pin 5 of the trigger JK3. The emergency power supply is supplied by battery one and battery two in series.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire power supply emergency battery management method, characterized in that: The following steps are involved: S1, take three batteries, record them as battery one, battery two, and battery three, and connect battery one, battery two, and battery three in series to form a backup power supply; S2, connecting a main control module for detecting battery voltage and a power control module for controlling the switching of positive and negative poles of the battery to the two ends of the backup power supply respectively, connecting the main control module to the power control module, and connecting a DC-DC module for power supply to the main control module; S3, when the main fire power supply fails, the backup power supply is operated. When the voltage of any one of battery 1, battery 2, and battery 3 is abnormal, the other two batteries are connected in series to supply power.

2. A fire power supply emergency battery management method according to claim 1, characterized in that: The battery 1, battery 2 and battery 3 are all lead-acid batteries with a rated voltage of 12V.

3. A fire power supply emergency battery management method according to claim 1, characterized in that: The negative electrode of the battery one is recorded as BAT1-, the positive electrode of the battery one is recorded as BAT1+, the negative electrode of the battery two is recorded as BAT2-, the positive electrode of the battery two is recorded as BAT2+, the negative electrode of the battery three is recorded as BAT3-, and the positive electrode of the battery three is recorded as BAT3+.

4. A fire power emergency battery management method according to claim 3, characterized in that: The power control module includes a battery one control module, a battery two control module, and a battery three control module. The battery one control module is used to control the positive and negative pole switching of battery one, the battery two control module is used to control the positive and negative pole switching of battery two, and the battery three control module is used to control the positive and negative pole switching of battery three.

5. A fire power emergency battery management method according to claim 4, characterized in that: An independent battery one voltage detection module is arranged inside the battery one, an independent battery two voltage detection module is arranged inside the battery two, and an independent battery three voltage detection module is arranged inside the battery three.

6. A fire power supply emergency battery management method according to claim 5, characterized in that: The battery one control module is electrically connected to the battery one voltage detection module, the battery two control module is electrically connected to the battery two voltage detection module, and the battery three control module is electrically connected to the battery three voltage detection module.

7. A fire power emergency battery management method according to claim 6, characterized in that: The battery one control module includes a trigger JK1 and a transistor Q1. A diode D1 is connected between pins 1 and 2 of the trigger JK1. Pin 5 of the trigger JK1 is connected to the total negative electrode of the battery and the negative electrode BAT1- of battery one. Pin 4 of the trigger JK1 is connected to the positive electrode BAT1+ of battery one.

8. A fire power emergency battery management method according to claim 7, characterized in that: The battery two control module includes a trigger JK2 and a transistor Q2. A diode D2 is connected between pin 1 and pin 2 of the trigger JK2. Pin 5 of the trigger JK2 is connected to pin 3 of the trigger JK1. Pin 5 of the trigger JK2 is connected to the negative electrode BAT2- of the battery two. Pin 4 of the trigger JK2 is connected to the positive electrode BAT2+ of the battery two.

9. A fire power supply emergency battery management method according to claim 8, characterized in that: The battery three control module includes a trigger JK3 and a transistor Q3. A diode D3 is connected between pin 1 and pin 2 of the trigger JK3. Pin 5 of the trigger JK3 is connected to pin 3 of the trigger JK2, and pin 5 of the trigger JK3 is connected to the negative electrode BAT3- of battery three. Pin 4 of the trigger JK3 is connected to the positive electrode BAT3+ of battery three. Pin 3 of the trigger JK3 is connected to the total negative electrode of the battery.

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