CN109687047A - A kind of Intelligent redundant lithium battery monitoring system and monitoring method - Google Patents
A kind of Intelligent redundant lithium battery monitoring system and monitoring method Download PDFInfo
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- CN109687047A CN109687047A CN201910126964.3A CN201910126964A CN109687047A CN 109687047 A CN109687047 A CN 109687047A CN 201910126964 A CN201910126964 A CN 201910126964A CN 109687047 A CN109687047 A CN 109687047A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 95
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 51
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 44
- 238000003869 coulometry Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to lithium battery safety monitoring technology fields, more particularly to a kind of Intelligent redundant lithium battery monitoring system and monitoring method, a kind of Intelligent redundant lithium battery monitoring system, including main control unit, A control unit, B control unit, A battery pack, B battery group, DC charging power supply, power device and circuit power, the main control unit is by display screen component, total central processing unit and total information acquisition module form, the present invention is by providing two groups or more of battery pack for power device as battery backup, and makes wherein one group of battery pack and circuit power is power device power supply simultaneously, the stability that battery backup is power device power supply is effectively guaranteed, and monitor state is constantly in by working condition of the system to battery backup, effectively make main control unit carry out converting in time another group it is spare Battery pack greatly improves system stability, guarantees that power device works on.
Description
Technical field
The present invention relates to lithium battery safety monitoring technology field more particularly to a kind of Intelligent redundant lithium battery monitoring system and
Monitoring method.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of,.
Lithium metal battery is proposed and is studied by Gilbert N.Lewis earliest within 1912.When the 1970s,
M.S.Whittingham is proposed and the lithium ion battery that begins one's study.Since the chemical characteristic of lithium metal is very active, so that lithium is golden
Processing, preservation, the use of category, it is very high to environmental requirement.With the development of science and technology, present lithium battery has become master
Stream.
Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.Lithium ion battery is without containing metallic state
Lithium, and can charge.5th generation product lithium metal battery of rechargeable battery was born in 1996, safety, ratio
Capacity, self-discharge rate and the ratio of performance to price are superior to lithium ion battery.Since the high-tech of its own requires limitation, now only
The company of a few countries is producing this lithium metal battery evil.
When battery backup is as backup power source, to the voltage of each element cell, electricity, electricity in battery backup
The monitoring of multiple working conditions such as stream, temperature is a vital problem, and battery backup is as backup power source, often
It is backed up mutually between group battery and to carry out conversion battery group in time is also to be solved at present important ask when breaking down
Topic.
Therefore, it invents a kind of Intelligent redundant lithium battery monitoring system and monitoring method is necessary to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of elevator safety monitoring system and monitoring methods, are asked with solving above-mentioned technology
Topic.
The present invention using following technical scheme in order to solve the above technical problems, realized:
A kind of Intelligent redundant lithium battery monitoring system, including main control unit, A control unit, B control unit, A battery
Group, B battery group, DC charging power supply, power device and circuit power, the main control unit is by display screen component, total center
Processor and total information acquisition module form, and the A control unit is supervised by A central processing unit, A information acquisition module and A information
Module composition is controlled, the B control unit is made of B central processing unit, B information acquisition module and B information monitoring module, described aobvious
Display screen component includes display screen, the main control unit respectively with A control unit and B control unit two-way circuit, the A information
Acquisition module and B information acquisition module output end are connect with total information acquisition module input terminal, and total central processing unit is defeated
Outlet is connect with A information acquisition module and B information acquisition module input terminal respectively.
Preferably, the DC charging power supply is made of A charge switch and B charge switch, and the DC charging power supply is defeated
Outlet is connected by A charge switch with A battery pack input terminal, and the DC charging power supply output end passes through B charge switch and B electricity
The connection of pond group input terminal.
Preferably, the A information monitoring module and B information monitoring module are by coulometric detector, voltage detector, electric current
A variety of detector compositions such as detector, temperature sensor, A/D converter, the coulometric detector, voltage detector, electric current inspection
The output end for surveying a variety of detectors such as device, temperature sensor is connect with A/D converter input terminal.
Preferably, the power device is made of A change-over switch and B change-over switch, and the power device input terminal is direct
It is connect with circuit power output end, the power device input terminal is connect by A change-over switch with A battery pack output end, described
Power device input terminal is connect by B change-over switch with B battery group output end, the circuit power, A battery pack and B battery group
Between be parallel circuit, the A change-over switch and B change-over switch always have a switch in closed state.
Preferably, the input terminal of the A information acquisition module and B information acquisition module connects with A/D converter output end
Connect, the output end of the A information acquisition module and B information acquisition module respectively with corresponding A central processing unit and B centre
Manage the connection of device input terminal.
Preferably, the A battery pack and B battery group are two groups of battery packs in multiple groups battery pack, electricity in the described system
The quantity of pond group is two groups and setting more than two.
Preferably, the line between the multiple groups battery pack between main control unit is that RS485 interface or CAN interface connect
It connects, the A control unit is that IC or SPI interface connect with the line in B control unit.
According to a kind of monitoring method of Intelligent redundant lithium battery of above content, comprising the following steps:
S1 circuit power normal power supply: by the current detector in A information monitoring module and B information monitoring module, into
The discharge condition of row detection A battery pack and B battery group, by A information acquisition module and B information acquisition module, by A information monitoring
Data in module and B information monitoring module are transferred to total information acquisition module, by the electricity for judging A battery pack and B battery group
Current sensor has detected whether electric current output, thus decision circuitry power supply whether normal power supply；
S2 circuit power stops power supply: circuit power power-off always has one by A change-over switch and B change-over switch and opens
It closes and is in closed state, be powered battery backup gapless power device, by A information monitoring module and B information
Current detector in monitoring module will test information and be sent to respective A information monitoring module and B information monitoring module, warp
It crosses A information monitoring module and B information monitoring module sends information to total information acquisition module, to judge that circuit power is disconnected
Electricity, and the data cases through over-current detector judge which battery pack is powered；
The battery-powered normal monitoring of S3A: by coulometric detector, voltage detector, the electric current in A information acquisition module
Multiple detectors such as detector, temperature sensor carry out the working condition of each unit lithium battery in detection A battery pack, will simulate
Signal is sent to A/D converter, carries out conversion digital signal by A/D converter, and be sent to A information acquisition module and counted
According to comparison, correlation data information is sent in total information acquisition module, is shown on a display screen；
S4A battery pack breaks down or battery pack is out of power: by A information acquisition module by A information monitoring module monitors
Data are sent to total information acquisition module, find the problem by total information acquisition module and are supplied to total central processing unit, by total
Central processing unit first controls B change-over switch closure, then controls A change-over switch and opens, carries out conversion B using electric installation gapless
It is battery-powered；
The battery-powered normal monitoring of S5B: by coulometric detector, voltage detector, the electric current in B information acquisition module
Multiple detectors such as detector, temperature sensor carry out the working condition of each unit lithium battery in detection B battery group, will simulate
Signal is sent to A/D converter, carries out conversion digital signal by A/D converter, and be sent to B information acquisition module and counted
According to comparison, correlation data information is sent in total information acquisition module, is shown on a display screen；
The charging of S6 battery pack: A charge switch and B charge switch are respectively controlled by A central processing unit and B central processing unit
Closure is that A battery pack and B battery group carry out charged in parallel by DC charging power supply simultaneously；
S7 is wherein full of for one group: detecting battery by the coulometric detector in A information monitoring module and B information monitoring module
The charge capacity of group sends a signal to phase by the corresponding information monitoring module of the battery pack when electricity reaches maximum value
Corresponding information acquisition module sends control signal to corresponding central processing unit, by center by information acquisition module
Processor closes corresponding charge switch, terminates the charged state of the battery pack；
S8 battery pack is completely filled with: being disconnected the charge switch of the battery pack by respective battery pack central processing unit, together
When by total central processing unit control one of change-over switch closure, make battery pack always and have one group of battery pack to be in and electricity consumption
Device connected state.
Preferably, the monitoring of the A battery pack and B battery group, there is following characteristic manipulation:
(1) by coulometric detector detect battery pack in each unit lithium battery electricity how much, whether determine battery pack
It needs to charge；
(2) whether the current status that each unit lithium battery in battery pack is detected by current detector, determine battery pack
Meet use condition；
(3) voltage swing that each unit lithium battery in battery pack is detected by voltage detector, determines battery state
It is whether normal；
(4) temperature that each unit lithium battery of battery pack is detected by temperature sensor, determines that battery pack is that temperature is excessively high.
The beneficial effects of the present invention are:
(1) battery pack of the invention by providing two groups or more for power device is as battery backup, and makes it
In one group of battery pack and circuit power be simultaneously power device power supply, effectively while circuit power powers off, directly use
Battery backup continues to power, and ensure that battery backup is the stability of power device power supply, prevents power device power-off from making
At the influence directly closed.
(2) while battery backup is that power device is powered, by the system to the working condition of battery backup
It is constantly in monitor state, and monitoring data is transferred to main control unit with the minimum intermittent time, effectively makes main control
Unit carries out converting another group of reserve battery in time when discovering battery backup failure or the not enough power supply in power supply
Group greatly improves system stability, guarantees that power device works on.
(3) when being charged for battery backup, using all battery packs while charging modes, by the system to charging
State monitors always, when effectively making that wherein single group battery backup electricity is full of, disconnects individual charging circuit, and until
All battery backups are completely filled with, so that reaching makes all batteries be in full state, effectively prevent every group of battery pack
Charge efficiency is different, and cause wherein Individual cells group electricity can not be full of.
Detailed description of the invention
Fig. 1 is lithium battery safety detecting system functional block diagram of the invention.
Fig. 2 is overall system module map of the invention.
In figure: 1, main control unit；2, A control unit；3, B control unit；4, A battery pack；5, B battery group；6, direct current
Charge power supply；7, power device；8, circuit power；101, display screen component；102, total central processing unit；103, total information acquires
Module；1011, display screen；201, A central processing unit；202, A information acquisition module；203, A information monitoring module；301, in B
Central processor；302, B information acquisition module；303, B information monitoring module；601, A charge switch；602, B charge switch；701,
A change-over switch；702, B change-over switch；9, coulometric detector；10, voltage detector；11, current detector；12, temperature sensing
Device；13, A/D converter.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiments and the drawings are closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, not
All.Based on the implementation example in the implementation mode, those skilled in the art are obtained without making creative work
Other embodiments belong to protection scope of the present invention.
Specific embodiments of the present invention are described with reference to the accompanying drawing.
Embodiment 1
As shown in Figs. 1-2, a kind of Intelligent redundant lithium battery monitoring system, including main control unit 1, A control unit 2, B control
Unit 3, A battery pack 4, B battery group 5, DC charging power supply 6, power device 7 and circuit power 8 processed, main control unit 1 is by showing
Display screen component 101, total central processing unit 102 and total information acquisition module 103 form, and A control unit 2 is by A central processing unit
201, A information acquisition module 202 and A information monitoring module 203 form, and B control unit 3 is adopted by B central processing unit 301, B information
Collect module 302 and B information monitoring module 303 to form, display screen component 101 includes display screen 1011, main control unit 1 respectively with
3 two-way circuit of A control unit 2 and B control unit, A information acquisition module 202 and 302 output end of B information acquisition module are and always
103 input terminal of information acquisition module connection, total 102 output end of central processing unit respectively with A information acquisition module 202 and B information
The connection of 302 input terminal of acquisition module.
DC charging power supply 6 is made of A charge switch 601 and B charge switch 602, and 6 output end of DC charging power supply passes through
A charge switch 601 is connected with 4 input terminal of A battery pack, and 6 output end of DC charging power supply passes through B charge switch 602 and B battery group
The connection of 5 input terminals, A information monitoring module 203 and B information monitoring module 303 are by coulometric detector 9, voltage detector 10, electricity
The a variety of detectors composition such as current sensor 11, temperature sensor 12, A/D converter 13, coulometric detector 9, voltage detector 10,
The output end of a variety of detectors such as current detector 11, temperature sensor 12 is connect with 13 input terminal of A/D converter, uses Denso
7 to be set to be made of A change-over switch 701 and B change-over switch 702,7 input terminal of power device is directly connect with 8 output end of circuit power,
7 input terminal of power device is connect by A change-over switch 701 with 4 output end of A battery pack, and 7 input terminal of power device is converted by B
Switch 702 is connect with 5 output end of B battery group, is parallel circuit, A conversion between circuit power 8, A battery pack 4 and B battery group 5
Switch 701 and B change-over switch 702 always have a switch in closed state, A information acquisition module 202 and B information collection mould
The input terminal of block 302 is connect with 13 output end of A/D converter, A information acquisition module 202 and B information acquisition module 302 it is defeated
Outlet is respectively connected with corresponding A central processing unit 201 and 301 input terminal of B central processing unit, A battery pack 4 and B battery group 5
For two groups of battery packs in multiple groups battery pack, the quantity of battery pack is two groups and setting more than two, multiple groups battery in the system
Line between group between main control unit 1 is that RS485 interface or CAN interface are connect, A control unit 2 and B control unit 3
In line be that IC or SPI interface connect.
Total central processing unit 102, A central processing unit 201 and B central processing unit 301 are that SMC62 model single-chip microcontroller is set
It sets, the model FLK-TIS55 model detector of coulometric detector 9, the model INA194AIDBVA type of current detector 11
Number detector, 10 model CAT809TTBI-GT3 model detector of voltage detector, the model of temperature sensor 12
PTFM04BH222Q2N34BS model sensor, the model L6599D model converter of A/D converter 13.
According to a kind of monitoring method of Intelligent redundant lithium battery of above content, comprising the following steps:
8 normal power supply of S1 circuit power: it is examined by the electric current in A information monitoring module 203 and B information monitoring module 303
Device 11 is surveyed, the discharge condition of detection A battery pack 4 and B battery group 5 is carried out, by A information acquisition module 202 and B information collection mould
Data in A information monitoring module 203 and B information monitoring module 303 are transferred to total information acquisition module 103 by block 302, are led to
It crosses and judges that the current detector 11 of A battery pack 4 and B battery group 5 has detected whether electric current output, so that decision circuitry power supply 8 is
No normal power supply；
S2 circuit power 8 stops power supply: circuit power 8 powers off, by 702 federation of A change-over switch 701 and B change-over switch
There is a switch in closed state, is powered battery backup gapless power device 7, by A information monitoring mould
Current detector 11 in block 203 and B information monitoring module 303 will test information and be sent to respective A information monitoring module
203 and B information monitoring module 303 sends information to total letter by A information monitoring module 203 and B information monitoring module 303
Acquisition module 103 is ceased, to judge that circuit power 8 powers off, and which the data cases through over-current detector 11 judge
One battery pack is powered；
S3A battery pack 4 is powered normal monitoring: by coulometric detector 9, the voltage detector in A information acquisition module 202
10, multiple detectors such as current detector 11, temperature sensor 12 carry out the work of each unit lithium battery in detection A battery pack 4
Make state, analog signal is sent to A/D converter 13, carries out conversion digital signal by A/D converter 13, and be sent to A
Information acquisition module 202 carries out data comparison, correlation data information is sent in total information acquisition module 103, in display screen
It is shown on 1011；
S4A battery pack 4 breaks down or battery pack is out of power: passing through A information acquisition module 202 for A information monitoring module 203
The data of monitoring are sent to total information acquisition module 103, find the problem by total information acquisition module 103 and are supplied to total centre
Device 102 is managed, the closure of B change-over switch 702 is first controlled by total central processing unit 102, A change-over switch 701 is then controlled and opens, make
7 gapless of power device carries out conversion B battery group 5 and powers；
S5B battery pack 5 is powered normal monitoring: by coulometric detector 9, the voltage detector in B information acquisition module 302
10, multiple detectors such as current detector 11, temperature sensor 12 carry out the work of each unit lithium battery in detection B battery group 5
Make state, analog signal is sent to A/D converter 13, carries out conversion digital signal by A/D converter 13, and be sent to B
Information acquisition module 302 carries out data comparison, correlation data information is sent in total information acquisition module 103, in display screen
It is shown on 1011；
The charging of S6 battery pack: 601 He of A charge switch is respectively controlled by A central processing unit 201 and B central processing unit 301
B charge switch 602 is closed, and carries out charged in parallel simultaneously by DC charging power supply 6 for A battery pack 4 and B battery group 5；
S7 is wherein full of for one group: by the coulometric detector 9 in A information monitoring module 203 and B information monitoring module 303
The charge capacity for detecting battery pack is sent when electricity reaches maximum value by the corresponding information monitoring module of the battery pack
Signal gives corresponding information acquisition module, sends control signal to corresponding central processing unit by information acquisition module,
Corresponding charge switch is closed by central processing unit, terminates the charged state of the battery pack；
S8 battery pack is completely filled with: being disconnected the charge switch of the battery pack by respective battery pack central processing unit, together
When by total central processing unit 102 control one of change-over switch closure, make battery pack always and have one group of battery pack be in
7 connected state of power device.
The monitoring of A battery pack 4 and B battery group 5 has following characteristic manipulation:
(1) by coulometric detector 9 detect battery pack in each unit lithium battery electricity how much, whether determine battery pack
It needs to charge；
(2) current status that each unit lithium battery in battery pack is detected by current detector 11, determines that battery pack is
It is no to meet use condition；
(3) voltage swing that each unit lithium battery in battery pack is detected by voltage detector 10, determines battery pack shape
Whether state is normal；
(4) temperature that each unit lithium battery of battery pack is detected by temperature sensor 12, determines that battery pack is temperature mistake
It is high.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (9)
1. a kind of Intelligent redundant lithium battery monitoring system, including main control unit (1), A control unit (2), B control unit (3),
A battery pack (4), B battery group (5), DC charging power supply (6), power device (7) and circuit power (8), it is characterised in that: institute
Main control unit (1) is stated to be made of display screen component (101), total central processing unit (102) and total information acquisition module (103),
The A control unit (2) is by A central processing unit (201), A information acquisition module (202) and A information monitoring module (203) group
At the B control unit (3) is by B central processing unit (301), B information acquisition module (302) and B information monitoring module (303)
Composition, the display screen component (101) includes display screen (1011), the main control unit (1) respectively with A control unit (2)
With B control unit (3) two-way circuit, the A information acquisition module (202) and B information acquisition module (302) output end are and always
Information acquisition module (103) input terminal connection, total central processing unit (102) output end respectively with A information acquisition module
(202) it is connected with B information acquisition module (302) input terminal.
2. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the DC charging electricity
Source (6) is made of A charge switch (601) and B charge switch (602), and DC charging power supply (6) output end is charged by A
Switch (601) connected with A battery pack (4) input terminal, DC charging power supply (6) output end pass through B charge switch (602) and
The connection of B battery group (5) input terminal.
3. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the A information monitoring
Module (203) and B information monitoring module (303) by coulometric detector (9), voltage detector (10), current detector (11),
A variety of detector compositions such as temperature sensor (12), A/D converter (13), the coulometric detector (9), voltage detector
(10), the output end of a variety of detectors such as current detector (11), temperature sensor (12) with A/D converter (13) input terminal
Connection.
4. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the power device
(7) it is made of A change-over switch (701) and B change-over switch (702), power device (7) input terminal is directly and circuit power
(8) output end connects, and power device (7) input terminal is connect by A change-over switch (701) with A battery pack (4) output end,
Power device (7) input terminal is connect by B change-over switch (702) with B battery group (5) output end, the circuit power
It (8), is parallel circuit between A battery pack (4) and B battery group (5), the A change-over switch (701) and B change-over switch (702) are total
A switch is had in closed state.
5. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the A information collection
The input terminal of module (202) and B information acquisition module (302) is connect with A/D converter (13) output end, and the A information is adopted
The output end for collecting module (202) and B information acquisition module (302) is respectively central with corresponding A central processing unit (201) and B
The connection of processor (301) input terminal.
6. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the A battery pack (4)
With two groups of battery packs that B battery group (5) are in multiple groups battery pack, in the described system quantity of battery pack be two groups and two groups with
Upper setting.
7. a kind of Intelligent redundant lithium battery monitoring system according to claim 1, it is characterised in that: the multiple groups battery pack
Between line between main control unit (1) be that RS485 interface or CAN interface connects, the A control unit (2) and B are controlled
Line in unit (3) is IC or SPI interface connects.
8. a kind of a kind of monitoring method of Intelligent redundant lithium battery described in -7 according to claim 1, which is characterized in that including with
Lower step:
S1 circuit power (8) normal power supply: by the electric current in A information monitoring module (203) and B information monitoring module (303)
Detector (11) carries out the discharge condition of detection A battery pack (4) and B battery group (5), by A information acquisition module (202) and B
Data in A information monitoring module (203) and B information monitoring module (303) are transferred to total letter by information acquisition module (302)
It ceases acquisition module (103), by judging that the current detector (11) of A battery pack (4) and B battery group (5) has detected whether electric current
Output, thus decision circuitry power supply (8) whether normal power supply；
S2 circuit power (8) stops power supply: circuit power (8) power-off, by A change-over switch (701) and B change-over switch (702)
A switch is always had in closed state, is powered battery backup gapless power device (7), by A information
Current detector (11) in monitoring module (203) and B information monitoring module (303) will test information and be sent to respective A letter
Monitoring module (203) and B information monitoring module (303) are ceased, by A information monitoring module (203) and B information monitoring module
(303) total information acquisition module (103) are sent information to, to judge that circuit power (8) power off, and are examined through overcurrent
The data cases for surveying device (11) judge which battery pack is powered；
The normal monitoring of S3A battery pack (4) power supply: by the coulometric detector (9) in A information acquisition module (202), voltage detecting
Multiple detectors such as device (10), current detector (11), temperature sensor (12) carry out each unit in detection A battery pack (4)
Analog signal is sent to A/D converter (13) by the working condition of lithium battery, carries out conversion number by A/D converter (13)
Signal, and be sent to A information acquisition module (202) and carry out data comparison, correlation data information is sent to total information acquisition mould
In block (103), shown on display screen (1011)；
S4A battery pack (4) breaks down or battery pack is out of power: passing through A information acquisition module (202) for A information monitoring module
(203) data monitored are sent to total information acquisition module (103), find the problem offer by total information acquisition module (103)
Total central processing unit (102) are given, B change-over switch (702) closure is first controlled by total central processing unit (102), A is then controlled and turns
Switch (701) opening is changed, conversion B battery group (5) is carried out using electric installation (7) gapless and powers；
The normal monitoring of S5B battery pack (5) power supply: by the coulometric detector (9) in B information acquisition module (302), voltage detecting
Multiple detectors such as device (10), current detector (11), temperature sensor (12) carry out each unit in detection B battery group (5)
Analog signal is sent to A/D converter (13) by the working condition of lithium battery, carries out conversion number by A/D converter (13)
Signal, and be sent to B information acquisition module (302) and carry out data comparison, correlation data information is sent to total information acquisition mould
In block (103), shown on display screen (1011)；
S6 battery pack charging: by respectively control A charge switch (601) of A central processing unit (201) and B central processing unit (301)
It is closed with B charge switch (602), it is in parallel with B battery group (5) progress for A battery pack (4) simultaneously by DC charging power supply (6)
Charging；
S7 is wherein full of for one group: by the coulometric detector in A information monitoring module (203) and B information monitoring module (303)
(9) charge capacity for detecting battery pack is sent out when electricity reaches maximum value by the corresponding information monitoring module of the battery pack
The number of delivering letters gives corresponding information acquisition module, sends control signal to corresponding central processing by information acquisition module
Corresponding charge switch is closed by central processing unit, terminates the charged state of the battery pack by device；
S8 battery pack is completely filled with: being disconnected the charge switch of the battery pack by respective battery pack central processing unit, is passed through simultaneously
Cross total central processing unit (102) and control one of change-over switch closure, make battery pack always and have one group of battery pack be in with
Electric installation (7) connected state.
9. a kind of monitoring method of Intelligent redundant lithium battery according to claim 8, it is characterised in that: the A battery pack
(4) with the monitoring of B battery group (5), there is following characteristic manipulation:
(1) by coulometric detector (9) detect battery pack in each unit lithium battery electricity how much, determine whether battery pack needs
It charges；
(2) whether the current status that each unit lithium battery in battery pack is detected by current detector (11), determine battery pack
Meet use condition；
(3) voltage swing that each unit lithium battery in battery pack is detected by voltage detector (10), determines battery state
It is whether normal；
(4) temperature that each unit lithium battery of battery pack is detected by temperature sensor (12), determines that battery pack is that temperature is excessively high.
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