CN108878919B - Device and method for activating batteries for long-term storage of unattended maintenance-free equipment - Google Patents

Abstract

The invention discloses a battery activation device and method for long-term storage of unattended maintenance-free equipment, including a rotation activation circuit, a safety protection circuit and a single-chip microcomputer; the rotation activation circuit includes multiple groups of activation circuits; each group of activation circuits includes at least one activation circuit circuit; each activation circuit includes a switch tube, a bias resistor, a load resistor and a battery to be activated; the gate of the switch tube is connected to the single-chip microcomputer, and a bias resistor is connected between the gate and the source of the switch tube, and the switch tube The drain is connected in series with the load resistance and the battery to be activated; the invention realizes alternate activation by performing timing conversion of each group of activation circuits under the control of a single chip microcomputer, thereby realizing the activation of the battery to be activated. The invention has reasonable design and ingenious conception, which not only improves the capacity of the battery to carry the load, but also solves the problem of activating the battery of the maintenance-free equipment that is stored for a long time without human intervention without affecting the normal operation of the single-chip microcomputer.

Description

Device and method for activating batteries for long-term storage of unattended maintenance-free equipment

technical field

The present invention relates to the field of batteries for maintenance-free equipment, and in particular to an activation device and method for long-term storage of batteries for maintenance-free equipment without human intervention.

Background technique

In real production and life, as well as in the fields of national defense and military industry, many equipments that are stored for a long time or used in a small amount are commonly used. Many of these equipments are maintenance-free equipment that is in a state of unmanned intervention for a long time, such as mines and missiles. Batteries are an integral part of these devices, however long-term storage conditions can passivate batteries (including but not limited to lithium-thionyl chloride batteries), creating a protective film between the electrodes, and when the current flowing through the battery is relatively high, Hours will not affect the work of the battery, the advantage of this is to reduce battery leakage and make it longer storage time. However, when the device needs to be turned on, a large current needs to flow in the battery, and a large voltage drop will be generated across the passivation film of the battery at this time, so that the load voltage is too low to support the normal operation of the device. Therefore, it is first necessary to add a large current to break down the passivation film to activate the battery, so that the battery load voltage gradually rises to normal.

In the long-term storage of maintenance-free equipment without human intervention, due to its own characteristics, it is usually necessary to control the status detection and task completion of the equipment in long-term storage and use by low-power single-chip microcomputers. When the battery is passivated, the small current of mA level driven by the battery is enough to support the normal operation of these microcontrollers, but when the device is turned on for use, this small current is not enough to support the normal operation of the device. On the other hand, in order to enable the device to be used normally, the battery needs to be activated, and the battery voltage drops sharply at this time. If the device works under low voltage, the sharply reduced battery voltage will affect the work of the single-chip microcomputer and even damage its control. circuit.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned problems in the background art, the purpose of the present invention is to provide an activation device and method for long-term storage of a battery of a maintenance-free equipment without human intervention.

For achieving the above object, the technical scheme adopted in the present invention is:

The invention discloses a battery activation device for long-term storage of unattended maintenance-free equipment, comprising a rotation activation circuit, a safety protection circuit and a single-chip microcomputer;

The rotation activation circuit includes multiple groups of activation circuits; each group of activation circuits includes at least one activation circuit; each activation circuit includes a switch tube, a bias resistor, a load resistor and a battery to be activated; The gate of the switch tube is connected with the single chip microcomputer to input a control signal for activating the battery; the bias resistor is connected between the gate and the source of the switch tube to fix the bias and protect the switch tube; The drain of the switch tube is connected in series with the load resistor and the battery to be activated;

In the safety protection circuit, an isolation diode is connected in series between every two activation circuits connected in parallel, and an isolation diode is connected in series between the battery to be activated and the load resistance.

Further, the battery to be activated in each activation circuit is a single battery or a battery pack in which a plurality of single batteries are connected in parallel.

Further, the switch tube includes a MOSFET.

In the present invention, the battery to be activated in each group of activation circuits can be a single battery, or a battery group with multiple single batteries connected in parallel; such a design is mainly due to the following considerations:

(1) In most cases, the battery capacity required for the normal operation of the device is greater than the capacity of the single battery. At this time, the parallel battery pack can meet the battery capacity requirements without affecting the normal working voltage; at the same time, such a design can be used One controller controls the activation of multiple batteries.

(2) If the capacity of the single battery can meet the battery capacity required for the normal operation of the equipment, the single battery connected in parallel with it can be used as a redundant design to improve the reliability of the system.

The invention also discloses a method for activating a battery for long-term storage of unattended maintenance-free equipment, comprising the following steps:

Step 1. When the device is stored, all switches are turned off, that is, the n activation circuits are all open circuits;

Step 2: Divide the n activation circuits into m groups, where 2≤m≤n, and each group contains at least 1 activation circuit; when the equipment is working, ensure that each activation circuit in one of the groups is in a working state, by The single-chip microcomputer controls the activation of the battery to be activated in it, and ensures that each activation circuit of other groups is in a disconnected state, and maintains the basic power supply voltage required for the operation of the single-chip microcomputer;

Step 3: Rotate activation, judge whether the battery to be activated in each activation circuit in the working state in step 2 has reached the set unit activation time, if not, continue to activate; if so, turn off the group in the open state. Each activation circuit is controlled by the single-chip microcomputer and converted to activate the battery to be activated in each activation circuit of the other group, and ensure that the activation circuits of the other groups are in a disconnected state to maintain the basic power supply voltage required for the operation of the single-chip microcomputer ;

Step 4. According to the steps in Step 3, the activation circuits of all groups are converted through the control of the single-chip microcomputer in turn, so as to realize the activation of the batteries to be activated in each activation circuit in each group;

Step 5: Determine whether each group of activation circuits has been activated in Step 4, if so, go to the next step, if not, continue to activate the circuits that have not been activated;

Step 6: Judging the state, judging whether the cumulative activation time of the batteries to be activated in each group of activation circuits has reached the activation time required by the batteries to be activated or whether the load voltage of the batteries to be activated in each group of activation circuits has reached the load voltage requirements, if No, go back to step 2; if yes, turn off all activation circuits.

Further, the unit activation time set in step 3 is less than the activation time of the battery to be activated, and the activation time of the battery to be activated is the activation time required by each single cell in the battery to be activated.

Further, the activation time required by each single cell in the battery to be activated is calculated according to the basic parameters of the selected battery and the load resistance.

The battery activation method for long-term storage of unattended maintenance-free equipment provided by the invention will not affect the normal operation of the low-power single-chip microcomputer during the battery activation process, and the activation work is correct, laying a foundation for future high-power work.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The switch tube can make multiple groups (covering multiple cycles and groups) to be activated batteries not activated at the same time. During the battery activation process, there is always a battery that can supply power to the microcontroller normally, which can meet the needs of the microcontroller and equipment work at the same time.

2. One controller can control one or more batteries to activate, saving time and cost.

3. One set of activation circuits works for a certain period of time and then converts to another set of activation circuits, and repeats the cycle for many times to complete the activation, instead of switching to another set of activation circuits after the activation of one set of activation circuits, which can improve the load of the battery. ability.

4. Since there are always differences in the parameters such as resistance of each single cell, all isolation diodes in the protection circuit can ensure that the single cells will not charge each other; in addition, the isolation diodes connected in series in the parallel branch can also be used. Prevents batteries in other branches from charging when a group of batteries is activated causing its voltage to drop sharply. These protection circuits reduce battery wear and improve battery life.

5. The battery will not be passivated after activation.

Description of drawings

Fig. 1 is a flow chart 1 of the activation method of the battery of the long-term storage unmanned maintenance-free equipment of the present invention;

Fig. 2 is the flow chart 2 of the activation method of the battery of the long-term storage unmanned maintenance-free equipment of the present invention;

FIG. 3 is a circuit diagram of a battery activation device for long-term storage of unattended maintenance-free equipment according to a specific embodiment of the present invention.

Among them, Figure 1 is a flow chart of an activation method for judging whether activation is complete according to whether the accumulated activation time reaches the required activation time of the battery; Figure 2 is a flow chart of an activation method for judging whether activation is complete according to whether the load voltage reaches the normal working voltage of the battery; wherein, All n activation circuits are divided into m groups (2≤m≤n, n and m are both positive integers).

Detailed ways

The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:

The invention discloses a battery activation device for long-term storage of unattended maintenance-free equipment, comprising a rotation activation circuit, a safety protection circuit and a single-chip microcomputer;

The rotation activation circuit includes multiple groups of activation circuits; each group of activation circuits includes at least one activation circuit; each activation circuit includes a switch tube, a bias resistor, a load resistor and a battery to be activated; the switch The gate of the tube is connected to the single-chip microcomputer to input the control signal for activating the battery; the bias resistor is connected between the gate and the source of the switch tube to fix the bias and protect the switch tube; the The drain of the switch tube is connected in series with the load resistor and the battery to be activated;

In the safety protection circuit, an isolation diode is connected in series between every two activation circuits connected in parallel, and an isolation diode is connected in series between the battery to be activated and the load resistance.

Further, the battery to be activated in each group of activation circuits is a single battery or a battery group in which a plurality of single batteries are connected in parallel.

Further, the switch tube includes a MOSFET.

The present invention also discloses a method for activating a battery for long-term storage of unattended maintenance-free equipment, as shown in FIG. 1 and FIG. 2 , including the following steps:

Step 1. When the device is stored, all switches are turned off, that is, the n activation circuits are all open circuits;

Step 2: Divide the n activation circuits into m groups, where 2≤m≤n, and each group contains at least 1 activation circuit; when the equipment is working, ensure that each activation circuit in one of the groups is in a working state, by The single-chip microcomputer controls the activation of the battery to be activated in it, and ensures that each activation circuit of other groups is in a disconnected state, and maintains the basic power supply voltage required for the operation of the single-chip microcomputer;

Step 3: Rotate activation, judge whether the battery to be activated in each activation circuit in the working state in step 2 has reached the set unit activation time, if not, continue to activate; if so, turn off the group in the open state. Each activation circuit is controlled by the single-chip microcomputer and converted to activate the battery to be activated in each activation circuit of the other group, and ensure that the activation circuits of the other groups are in a disconnected state to maintain the basic power supply voltage required for the operation of the single-chip microcomputer ;

Step 4. According to the steps in Step 3, the activation circuits of all groups are converted through the control of the single-chip microcomputer in turn, so as to realize the activation of the batteries to be activated in each activation circuit in each group;

Step 5: Determine whether each group of activation circuits has been activated in Step 4, if so, go to the next step, if not, continue to activate the circuits that have not been activated;

Step 6: Judging the state, judging whether the cumulative activation time of the batteries to be activated in each group of activation circuits has reached the activation time required by the batteries to be activated or whether the load voltage of the batteries to be activated in each group of activation circuits has reached the load voltage requirements, if No, go back to step 2; if yes, turn off all activation circuits.

All n activation circuits are divided into m groups (2≤m≤n n, m are all positive integers).

Further, the unit activation time set in step 3 is less than the activation time of the battery to be activated, and the activation time of the battery to be activated is the activation time required by each single cell in the battery to be activated.

Further, the activation time required by each single cell in the battery to be activated is calculated according to the basic parameters of the selected battery and the load resistance.

The battery activation method for long-term storage of unattended maintenance-free equipment provided by the invention will not affect the normal operation of the low-power single-chip microcomputer during the battery activation process, and the activation work is correct, laying a foundation for future high-power work.

The present invention provides a specific embodiment, as shown in FIG. 3 . This embodiment provides a battery activation device for long-term storage of unattended maintenance-free equipment, including a rotation activation circuit, a safety protection circuit, and a single-chip microcomputer; the rotation activation circuit includes first, second, third, fourth, and fifth activation circuits , divided into 3 groups, of which the first group includes the first and second activation circuits, the second group includes the third and fourth activation circuits, and the third group includes the fifth activation circuit. The battery packs are activated in turn; the safety protection circuit mainly prevents the single cells and the battery packs from charging each other to improve the battery life.

The circuit components will be described in detail below.

The first activation circuit includes a bias resistor 1R1, a switch tube Q1, a load resistor 1R2, a battery 1VB1, and a battery 1VB2; the battery 1VB1 and the battery 1VB2 are connected in parallel to form a first battery pack; the gate G1 of the switch tube Q1 and the port I/ O1 is connected to output the control signal V1; the bias resistor 1R1 is connected in series between the source S1 of the switch tube Q1 and the gate G1 of the switch tube Q1; the drain D1 of the switch tube Q1 is connected to the load resistor 1R2, the first battery pack The anodes are connected in series; the cathode of the first battery pack and the source S1 of the switch tube Q1 are both grounded.

The second activation circuit includes a bias resistor 2R1, a switch tube Q2, a load resistor 2R2, a battery 2VB1, and a battery 2VB2; the battery 2VB1 and the battery 2VB2 are connected in parallel to form a second battery pack; the gate G2 of the switch tube Q2 is connected to the port I/ O2 is connected to output the control signal V2; the bias resistor 2R1 is connected in series between the source S2 of the switch tube Q2 and the gate G2 of the switch tube Q2; the drain D2 of the switch tube Q2 is connected to the load resistor 2R2, the second battery pack The anodes are connected in series; the cathode of the second battery pack and the source S2 of the switch tube Q2 are both grounded.

The third activation circuit includes a bias resistor 3R1, a switch tube Q3, a load resistor 3R2, a battery 3VB1, and a battery 3VB2; the battery 3VB1 and the battery 3VB2 are connected in parallel to form a third battery pack; the gate G3 of the switch tube Q3 and the port I/ O3 is connected to output the control signal V3; the bias resistor 3R1 is connected in series between the source S3 of the switch tube Q3 and the gate G3 of the switch tube Q3; the drain D3 of the switch tube Q3 is connected to the load resistor 3R2 and the third battery pack The anodes are connected in series; the cathode of the third battery pack and the source S3 of the switch tube Q3 are both grounded.

The fourth activation circuit includes a bias resistor 4R1, a switch tube Q4, a load resistor 4R2, a battery 4VB1, and a battery 4VB2; the battery 4VB1 and the battery 4VB2 are connected in parallel to form a fourth battery pack; the gate G4 of the switch tube Q4 is connected to the port I/ O4 is connected to output the control signal V4; the bias resistor 4R1 is connected in series between the source S4 of the switch tube Q4 and the gate G4 of the switch tube Q4; the drain D4 of the switch tube Q4 is connected to the load resistor 4R2, the fourth battery pack The anodes are connected in series; the cathode of the fourth battery pack and the source S4 of the switch tube Q4 are both grounded.

The fifth activation circuit includes a bias resistor 5R1, a switch tube Q5, a load resistor 5R2, a battery 5VB1, and a battery 5VB2; the battery 5VB1 is connected in parallel with the battery 5VB2 to form a fifth battery pack; the gate G5 of the switch tube Q5 and the port I/ O5 is connected to output the control signal V5; the bias resistor 5R1 is connected in series between the source S5 of the switch tube Q5 and the gate G5 of the switch tube Q5; the drain D5 of the switch tube Q5 is connected to the load resistor 5R2, the fifth battery pack The anodes are connected in series; the cathode of the fifth battery pack and the source S5 of the switch tube Q5 are both grounded.

The first, second, third, fourth and fifth activation circuits are connected in parallel with each other, and the parallel anodes are used for power output VS to supply power for the normal operation of the single-chip microcomputer.

The safety protection circuit includes isolation diode 1K1, isolation diode 1K2, isolation diode 1K3, isolation diode 1K4, isolation diode 2K1, isolation diode 2K2, isolation diode 2K3, isolation diode 2K4, isolation diode 3K1, isolation diode 3K2, isolation diode 3K3, isolation diode 3K4, isolation diode 4K1, isolation diode 4K2, isolation diode 4K3, isolation diode 4K4, isolation diode 5K1, isolation diode 5K2, isolation diode 5K3, isolation diode 5K4; the positive electrode of the isolation diode 1K1 is connected to the anode of the battery 1VB1, and the negative electrode is connected to the load resistance 1R2 is connected; the positive electrode of the isolation diode 1K2 is connected to the anode of the battery 1VB2, the negative electrode is connected to the load resistor 1R2, and is connected in parallel with the negative electrode of the isolation diode 1K1; the positive electrode of the isolation diode 2K1 is connected to the anode of the battery 2VB1, and the negative electrode is connected to the load resistor 2R2; The anode of the isolation diode 2K2 is connected to the anode of the battery 2VB2, the cathode is connected to the load resistor 2R2, and is connected in parallel with the cathode of the isolation diode 2K1; the anode of the isolation diode 3K1 is connected to the anode of the battery 3VB1, and the cathode is connected to the load resistor 3R2; the isolation diode 3K2 The positive electrode is connected to the anode of the battery 3VB2, the negative electrode is connected to the load resistor 3R2, and is connected in parallel with the negative electrode of the isolation diode 3K1; the positive electrode of the isolation diode 4K1 is connected to the anode of the battery 4VB1, and the negative electrode is connected to the load resistor 4R2; The anode of the battery 4VB2 is connected to the anode of the battery 4VB2, the cathode is connected to the load resistor 4R2, and is connected in parallel with the cathode of the isolation diode 4K1; the anode of the isolation diode 5K1 is connected to the anode of the battery 5VB1, and the cathode is connected to the load resistor 5R2; the anode of the isolation diode 5K2 is connected to the anode of the battery 5VB2 The anode is connected to the load resistor 5R2, and the negative electrode is connected in parallel with the negative electrode of the isolation diode 5K1; the positive electrode of the isolation diode 1K3 is connected in series with the battery 1VB1, the positive electrode of the isolation diode 1K4 is connected in series with the battery 1VB2, and the negative electrodes of the two are connected in parallel; the positive electrode of the isolation diode 2K3 is connected in series. It is connected in series with the battery 2VB1, the positive electrode of the isolation diode 2K4 is connected in series with the battery 2VB2, and the negative electrodes of the two are connected in parallel; the positive electrode of the isolation diode 3K3 is connected in series with the battery 3VB1, the positive electrode of the isolation diode 3K4 is connected in series with the battery 3VB2, and the negative electrodes of the two are connected in parallel; the isolation diode 4K3 is connected in series with the battery 3VB2. The positive pole of the isolation diode 5K4 is connected in series with the battery 4VB1, the positive pole of the isolation diode 4K4 is connected in series with the battery 4VB2, and the negative poles of the two are connected in parallel; the positive pole of the isolation diode 5K3 is connected in series with the battery 5VB1, the positive pole of the isolation diode 5K4 is connected in series with the battery 5VB2, and the negative poles of the two are connected in parallel.

Since there are always differences in the parameters such as resistance of each single cell, the isolation diodes 1K1, 1K2, 1K3, 1K4, 2K1, 2K2, 2K3, 2K4, 3K1, 3K2, 3K3, 3K4, 4K1, 4K2, 4K3, 4K4, 5K1 , 5K2, 5K3, 5K4 can ensure that each single battery will not charge each other; at the same time, when some battery packs are activated, the voltage at both ends drops sharply, and the isolation diodes 1K3, 1K4, 2K3, 2K4, 3K3 , 3K4, 4K3, 4K4, 5K3, 5K4 prevent other battery packs from charging it.

The first, second, third, fourth, and fifth battery packs can increase the total capacity of the working batteries in the device to meet the requirements of the device for normal operation. In turn, time and cost can be saved by controlling the activation of multiple batteries by one controller. In addition, when the capacity of the single battery can meet the normal operation requirements of the equipment, the design of the battery pack can increase the redundancy of the system, thereby improving the reliability of the system.

The present embodiment also provides a method for activating a battery for long-term storage of unattended maintenance-free equipment, including the following steps:

Step 1. When the device is in the storage state, the switches Q1, Q2, Q3, Q4, and Q5 are all off, and all activation circuits are off; the batteries 1VB1, 1VB2, 2VB1, 2VB2, 3VB1, 3VB2, 4VB1, 4VB2, 5VB1, 5VB2 can provide the required voltage for the normal operation of the low-power single-chip microcomputer through the power output VS to support its functions such as state detection of the device; among them, each monomer is calculated according to the basic parameters of the selected battery and load resistance. It takes 10 minutes for the battery to complete the activation, and the normal working voltage of the single battery is 3V; the unit activation time is set to 1 minute;

Step 2: Divide the 5 activation circuits into 3 groups, the first group includes the first and second activation circuits, the second group includes the third and fourth activation circuits, and the third group includes the fifth activation circuit; When the MCU output ports I/O1 and I/O2 are set to high level, the control signals V1 and V2 are sent to turn on the switches Q1 and Q2. The first activation circuit and the second activation circuit form a channel, which can instantly generate a large current. Activate the batteries 1VB1, 1VB1, 2VB1, 2VB2;

When the first activation circuit forms a path, the output ports I/O3, I/O4, and I/O5 of the single-chip microcomputer are still set to low level, the switches Q3, Q4, and Q5 are turned off, and the third, fourth, and fifth activation circuits are not activated. A path is formed, and the batteries 3VB1, 3VB1, 4VB1, 4VB2, 5VB1, and 5VB2 are not activated. The battery packs in the third, fourth, and fifth activation circuits can still provide the microcontroller with the voltage VS required for its operation.

Step 3. When the activation time in Step 2 reaches 1 minute, set the output ports I/O1 and I/O2 of the microcontroller to a low level, turn off the switches Q1 and Q2, and stop activating the batteries 1VB1, 1VB1, 2VB1, and 2VB2; Set the output ports I/O3 and I/O4 of the single-chip microcomputer to high level, send control signals V3 and V4 to turn on the switches Q3 and Q4, and the third and fourth activation circuits form a channel, which instantly generates a large current, which affects the batteries 3VB1 and 3VB1. , 4VB1, 4VB2 are activated; the output port I/O5 of the single-chip microcomputer is still set to low level, the switch Q5 is turned off, and the battery packs in the first, second, and fifth activation circuits provide the single-chip microcomputer with the voltage required for its normal operation VS;

Step 4. When the activation time in Step 3 reaches 1 minute, set the output ports I/O3 and I/O4 of the microcontroller to a low level, turn off the switches Q3 and Q4, and stop activating the batteries 3VB1, 3VB1, 4VB1, and 4VB2; Set the output port I/O5 of the single-chip microcomputer to a high level, send a control signal V5 to turn on the switch tube Q5, and the fifth activation circuit forms a channel, which instantly generates a large current to activate the batteries 5VB1 and 5VB2; the output ports of the single-chip microcomputer I/O1 and I/O2 is still set to low level, and the battery packs in the first, second, third, and fourth activation circuits provide the single-chip microcomputer with the voltage VS required for its normal operation;

Step 5. Repeat Step 2, Step 3 and Step 4 until all 5 activation circuits work for 10 minutes cumulatively, or measure the voltage across the load resistors 1R2, 2R2, 3R2, 4R2, 5R2, when the load voltage reaches 3V, turn off All switch tubes complete the activation of all batteries.

The method for activating the battery of the maintenance-free equipment for long-term storage without intervention provided by the invention ensures that the battery can be activated safely and reliably without affecting the normal operation of the single-chip microcomputer, and can control a plurality of single cells to activate at the same time through a controller In order to save time and cost; the present invention also provides an activation device for long-term storage of batteries of unattended maintenance-free equipment. The invention has reasonable design and ingenious conception, which not only improves the capacity of the battery to carry a load, but also effectively solves the problem of how to complete the long-term storage of unattended maintenance-free equipment battery activation without affecting the normal operation of the single-chip microcomputer.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form; any person of ordinary skill in the industry can smoothly implement the present invention as shown in the accompanying drawings and above; Within the scope of the technical solutions of the present invention, the equivalent changes made by those skilled in the art with some modifications, modifications and evolutions made by using the technical contents disclosed above are all equivalent embodiments of the present invention; at the same time, any Any modification of equivalent changes, modification of modifiers, etc. made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solutions of the present invention.

Claims (3)

1. Method for activating a battery for long-term storage of a maintenance-free device without human intervention, characterized in that it comprises the following steps:

step one, when the equipment is stored, all switch tubes are turned off, namely n activation circuits are all open circuits;

step two, mixingnThe bar activation circuit is divided intomGroup of which

And each group comprises at least 1 activation circuit; when the equipment works, each activation circuit in one group is ensured to be in a working state, the singlechip is used for controlling the activation of the battery to be activated, each activation circuit in other groups is ensured to be in a disconnected state, and the basic power supply voltage required by the work of the singlechip is maintained;

step three, alternate activation, namely judging whether the battery to be activated in each activation circuit in the working state in the step two reaches the set unit activation time, and if not, continuing the activation; if yes, turning off each activation circuit of the group in an open state, controlling and converting the activation circuits into activation of the battery to be activated in each activation circuit of the other group by the single chip microcomputer, ensuring that the activation circuits of the other groups are in a disconnected state, and maintaining the basic power supply voltage required by the work of the single chip microcomputer;

step four, converting the activation circuits of all groups through the control of a single chip microcomputer according to the step three, and activating the battery to be activated in each activation circuit in each group;

step five, judging whether each group of activated circuits is activated in the step four, if so, entering the next step, and if not, continuing to activate the circuits which are not activated;

judging the state, namely judging whether the accumulated activation time of the batteries to be activated in each group of activation circuits reaches the activation time required by the batteries to be activated or whether the load voltage of the batteries to be activated in each group of activation circuits reaches the load voltage requirement, and if not, returning to the step two; if yes, all the activation circuits are turned off.

2. The method for activating a battery of a long-term storage maintenance-free device without human intervention according to claim 1, wherein the unit activation time set in step three is less than the activation time of the battery to be activated, which is the activation time required by each cell in the battery to be activated.

3. The method for activating a battery of a long-term storage maintenance-free device without human intervention according to claim 2, wherein the activation time required for each cell in the battery to be activated is calculated from the basic parameters of the selected battery and the load resistance.

Images