CN103792491B - Storage battery state display device - Google Patents
Storage battery state display device Download PDFInfo
- Publication number
- CN103792491B CN103792491B CN201410028725.1A CN201410028725A CN103792491B CN 103792491 B CN103792491 B CN 103792491B CN 201410028725 A CN201410028725 A CN 201410028725A CN 103792491 B CN103792491 B CN 103792491B
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- Prior art keywords
- circuit
- cells
- processor circuit
- communication interface
- batteries
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- 238000004891 communication Methods 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000007774 longterm Effects 0.000 claims description 2
- 238000011897 real-time detection Methods 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000002955 isolation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention relates to a storage battery state display device which comprises a liquid crystal display module, a main processor circuit, a second communication port circuit, a first communication port circuit, a bottom-layer processor circuit, voltage monitoring circuits, a current monitoring circuit and a battery pack. The battery pack comprises a plurality of batteries, the number of the voltage monitoring circuit is the same as that of the batteries, the positive pole and the negative pole of each battery are connected with one voltage monitoring circuit in a crossing mode, the current monitoring circuit is in series connection with the battery pack, the output ends of the voltage monitoring circuits and the output end of the current monitoring circuit are connected with the corresponding input ends of the bottom-layer processor circuit respectively, the corresponding output end of the bottom-layer processor circuit is further connected with the first communication port circuit, and the second communication port circuit and the liquid crystal display module are both connected with the main processor circuit. The storage battery state display device reduces the risk that the performance of the whole battery pack is reduced, prolongs the service life of the whole battery pack, reduces maintenance cost of the system and improves reliability of a whole vehicle.
Description
Technical field
The invention belongs to battery condition monitoring technical field, more particularly, to a kind of battery condition display device.
Background technology
At present in small-sized electric vehicle, widely used lead-acid battery group is powered, in real work, often due to system
Make, the factor such as aging, in a Battery pack group, usually have Individual cells and undertension, too low situation occur, can lead to total
Cell voltage declines, thus the electric current of set of cells increases, life-time service can lead to the life-span of whole set of cells to decline.At present little
In type electric vehicle, do not take any measure to detect for each cell voltage of set of cells, can frequently result in whole electricity
Pond group service life reduction, increased the maintenance cost of car load.
Content of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of battery condition display device, this sets
For warning message can be provided in advance such that it is able to change faulty battery in time, improve the working life of whole set of cells.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
Battery condition display device, including LCD MODULE, main processor circuit, the second communication interface circuit,
One communication interface circuit, floor processor circuit, electric voltage observation circuit, current monitoring circuit and set of cells, described set of cells bag
Include some batteries, the described quantity of electric voltage observation circuit is identical with the quantity of battery, the both positive and negative polarity of every batteries bridges
One group of electric voltage observation circuit, described current monitoring circuit is connected in series in set of cells, and described electric voltage observation circuit and current monitoring are electric
The outfan on road is connected with the respective input of floor processor circuit respectively, the corresponding output end of described floor processor circuit
Also it is connected with the first communication interface circuit, described second communication interface circuit and LCD MODULE are all and main processor circuit
It is connected, described first communication interface and the second communication interface are connected by can bus, and realize floor processor circuit and master
The data transfer of processor circuit；Described current monitoring circuit, including resistance ri, electric capacity ci and the second operational amplifier
Lmv344, described resistance ri is connected in series in the middle of the main branch of set of cells, and described electric capacity ci is in parallel with resistance ri, described second computing
The in-phase input end of amplifier lmv344 is connected to the high level end of resistance ri, the output of described second operational amplifier lmv344
End is connected to the respective input of floor processor circuit.
The present invention passes through to add a set of observation circuit in set of cells, the voltage and current of real-time detection each batteries group,
And compare with given threshold value, when voltage is long-term lower than the threshold voltage giving, system be given in display screen corresponding that
The warning message of one section, points out to need to change this batteries.When the electric current of battery is higher than the threshold current setting for a long time, point out
Need to detect full-vehicle control and drive system.By the monitoring of the voltage and current to set of cells, it is achieved thereby that to set of cells
Condition diagnosing, providing corresponding warning message in time, pointing out battery system or other system to be safeguarded, thus reducing whole
The risk that individual battery performance declines, improves the working life of whole set of cells, reduces system maintenance cost, improves car load
Reliability.
The present invention adopts double-layer structure, and the signal of communication interface transmission is digital quantity, can be carried out with relatively simple method
Isolation, thus can be very good to realize the isolation of power current and weak electric signal.If bottom cell part is with man-machine interface part all
In same installing mechanism, need to connect more lead to set of cells, general set of cells from cockpit meter section farther out, needs
Want more tie, using the double-layer structure of the present invention, centre is coupled using communication bus, and the tie of needs is less, because
And connection lead can be reduced, and realize strong and weak electric isolution, decrease system cost, increased system reliability.
Brief description
Fig. 1 is the system block diagram of the present invention.
Fig. 2 is the circuit diagram of the electric voltage observation circuit of the present invention.
Fig. 3 is the circuit diagram of the current monitoring circuit of the present invention.
Fig. 4 is the circuit diagram of the multidiameter option switch circuit of the present invention.
Fig. 5 is the circuit diagram of the floor processor circuit of the present invention.
Fig. 6 is the circuit diagram of the main processor circuit of the present invention.
Fig. 7 is the circuit diagram of first, second communication interface circuit of the present invention.
Fig. 8 is the circuit diagram of the driving chip of LCD MODULE of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is made a detailed explanation.
Battery condition display device as shown in Figure 1, including man-machine interface part 1 and bottom cell monitor portion 2, people
Machine interface section 1 is located at bridge instrumentation part, and man-machine interface part 1 is responsible for realizing the data with bottom cell monitor portion 2
Communication, obtains the status information of battery, and the electric current of calculating in real time and display each economize on electricity cell voltage and set of cells 25, described people
Machine interface section 1 includes LCD MODULE 11, main processor circuit 12 and the second communication interface circuit 13；Bottom cell monitors
Part 2 is located at set of cells 25 installation case portion and divides, and it is mainly responsible for realizing the sampling of cell voltage, electric current, and is digitized, and
By floor processor circuit 22, data is processed, then pass through communication interface and communicated with host computer；Described bottom
Battery cell monitoring part 2 includes the first communication interface circuit 21, floor processor circuit 22, electric voltage observation circuit 23, current monitoring
Circuit 24 and set of cells 25, described set of cells 25 includes 16 batteries, the described quantity of electric voltage observation circuit 23 and battery
Quantity is identical, and the both positive and negative polarity of every batteries bridges one group of electric voltage observation circuit 23, and described current monitoring circuit 24 is connected in series to electricity
In pond group 25, the outfan phase with floor processor circuit 22 respectively of described electric voltage observation circuit 23 and current monitoring circuit 24
Input is answered to be connected, the corresponding output end of described floor processor circuit 22 is also connected with the first communication interface circuit 21, institute
State the second communication interface circuit 13 to be all connected with main processor circuit 12 with LCD MODULE 11, described first communication interface
21 and second communication interface 13 connected by can bus, and realize the number of floor processor circuit 22 and main processor circuit 12
According to transmission.
Electric voltage observation circuit 23 as shown in Figure 2, including the first operational amplifier lmv344, Zener diode d12, electric capacity
C30, resistance r1 and resistance r29, the resistance of described resistance r1 is 500k ω, and the resistance of described resistance r29 is 10k ω, by resistance
Big two resistance once of value one carry out partial pressure to battery.Described resistance r1 and resistance r29 series connection, and one end is connected to battery
Positive pole, the other end be grounded；Described electric capacity c30 and Zener diode d12 is connected in parallel on resistance r29 respectively, described first computing
The in-phase input end of amplifier lmv344 is connected to the high level end of resistance r29, and described first operational amplifier lmv344's is defeated
Go out the respective input that end is connected to floor processor circuit 22.Voltage detecting is using the testing circuit of low cost, accuracy of detection
Height, low cost, good reliability.
Current monitoring circuit 24 as shown in Figure 3, including resistance ri, electric capacity ci and the second operational amplifier lmv344, institute
State resistance ri and be connected in series in the middle of the main branch of set of cells, described electric capacity ci is in parallel with resistance ri, described second operational amplifier
The in-phase input end of lmv344 is connected to the high level end of resistance ri, and the outfan of described second operational amplifier lmv344 connects
Respective input to bottom processor circuit 22.
Floor processor circuit 22 as shown in Figure 4, Figure 5, including multidiameter option switch circuit and floor processor, described
Multidiameter option switch circuit adopts cd74hc4067 chip, 16 input pins of cd74hc4067 chip and 16 groups of voltage monitorings
The outfan of the first operational amplifier lmv344 of circuit 23 connects respectively, 1 output pin of cd74hc4067 chip and bottom
The respective pins of layer processor circuit 22 are connected, and described floor processor adopts stm32f103rbt6 chip,
The 14 of stm32f103rbt6 chip, No. 15 pin output pin and the second operational amplifiers with cd74hc4067 chip respectively
The outfan of lmv344 is connected, No. 8 of stm32f103rbt6 chip, No. 9, No. 10 and No. 11 pins respectively with cd74hc4067
No. 10 of chip, No. 11, No. 14 are connected with No. 13 pins, realize the function that multi-analog selects.
Main processor circuit 12 as shown in Fig. 6, Fig. 8 adopts stm32f103vbt6 chip, and this chip has can communication
Interface, and there is more io interface, it is capable of the interface of can communication and liquid crystal display, the drive of LCD MODULE 11
Dynamic chip meets the use of most conventional liquid crystal, and the second communication interface circuit 13 adopts iso1050 chip, described
The 97 of stm32f103vbt6 chip, No. 98 pins, 1-5 pin, 28-46 pin, 82-86 pin all for liquid crystal
The respective pins of the driving chip of display module 11 are connected, and realize liquid crystal display；No. 70 of described stm32f103vbt6 chip,
No. 2 of No. 71 pins and iso1050 chip, No. 3 pins be connected, realize main processor circuit 12 and the second communication interface circuit 13
Connection and its data communication.
First communication interface circuit 21 as shown in Figure 7 and the second communication interface circuit 13, should all using iso1050 chip
Chip has voltage isolation features, mutually isolated between No. 2, No. 3 pins and No. 6, No. 7 pins, it is achieved thereby that can communication connects
The information isolation transmission of mouth is it is achieved that the power current circuit of lower floor's battery is communicated with the light current on upper strata.First communication interface circuit
No. 2 of iso1050 chip in 21, No. 3 pins respectively with No. 45 of stm32f103rbt6 chip, No. 44 pins be connected, realize
The connection of floor processor circuit 22 and the first communication interface circuit 21 and its data communication；In second communication interface circuit 13
No. 2 of iso1050 chip, No. 3 pins respectively with No. 70 of stm32f103vbt6 chip, No. 71 pins be connected, realize main process task
The connection of device circuit 12 and the second communication interface circuit 13 and its data communication, the iso1050 in the first communication interface circuit 21
No. 6 of iso1050 chip in No. 6 of chip, No. 7 pins and the second communication interface circuit 13, No. 7 pins pass through can bus
It is connected, realize the data transfer of floor processor circuit 22 and main processor circuit 12.
Claims (1)
1. battery condition display device it is characterised in that: include LCD MODULE (11), main processor circuit (12), the
Two communication interface circuits (13), the first communication interface circuit (21), floor processor circuit (22), electric voltage observation circuit (23),
Current monitoring circuit (24) and set of cells (25), described set of cells (25) includes some batteries, described electric voltage observation circuit
(23) quantity is identical with the quantity of battery, and the both positive and negative polarity of every batteries bridges one group of electric voltage observation circuit (23), described electricity
Stream observation circuit (24) is connected in series in set of cells (25), the output of described electric voltage observation circuit (23) and current monitoring circuit (24)
End is connected with the respective input of floor processor circuit (22) respectively, the corresponding output end of described floor processor circuit (22)
Also be connected with the first communication interface circuit (21), described second communication interface circuit (13) and LCD MODULE (11) all with
Main processor circuit (12) is connected, and described first communication interface circuit (21) and the second communication interface circuit (13) pass through can
Bus connects, and realizes the data transfer of floor processor circuit (22) and main processor circuit (12)；Described current monitoring electricity
Road (24), including resistance ri, electric capacity ci and the second operational amplifier lmv344, described resistance ri are connected in series to the main branch of set of cells
Central, described electric capacity ci is in parallel with resistance ri, and the in-phase input end of described second operational amplifier lmv344 is connected to resistance ri
High level end, the outfan of described second operational amplifier lmv344 is connected to the corresponding input of floor processor circuit (22)
End；
Described electric voltage observation circuit (23) and current monitoring circuit (24) are capable of the voltage and current of each batteries of real-time detection, and
Compare with given threshold value, when voltage is long-term lower than the threshold voltage giving, system is given in LCD MODULE (11)
The warning message of that section corresponding, points out to need to change this batteries；When the electric current of battery is higher than the threshold value electricity setting for a long time
During stream, point out to need to detect full-vehicle control and drive system；By the monitoring of the voltage and current to set of cells (25), thus real
Show the condition diagnosing to set of cells (25), provided corresponding warning message in time, pointed out set of cells (25) is safeguarded, from
And reduce the risk of whole set of cells (25) hydraulic performance decline, improve the working life of whole set of cells (25), reduce system maintenance
Cost, improves reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028725.1A CN103792491B (en) | 2014-01-22 | 2014-01-22 | Storage battery state display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028725.1A CN103792491B (en) | 2014-01-22 | 2014-01-22 | Storage battery state display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103792491A CN103792491A (en) | 2014-05-14 |
| CN103792491B true CN103792491B (en) | 2017-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410028725.1A Expired - Fee Related CN103792491B (en) | 2014-01-22 | 2014-01-22 | Storage battery state display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103792491B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111026074B (en) * | 2019-11-25 | 2022-05-31 | 安徽绿沃循环能源科技有限公司 | Battery pack information display device and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101938C (en) * | 1996-03-20 | 2003-02-19 | 珩顺电子有限公司 | Continuous scan recording method capable of monitoring plurality of batteries simultaneously |
| JP4319205B2 (en) * | 2006-06-14 | 2009-08-26 | 株式会社Ｎｔｔファシリティーズ | Battery management apparatus and battery management method |
| CN101404848A (en) * | 2008-10-20 | 2009-04-08 | 歌仕玛科技（深圳）有限公司 | Electronic ballast and general lamp seat having the same |
| CN201345393Y (en) * | 2008-11-25 | 2009-11-11 | 北京市电力公司 | Battery monitoring system used in electric automobile battery charger |
| CN202939289U (en) * | 2012-10-29 | 2013-05-15 | 中国南方电网有限责任公司调峰调频发电公司 | Battery pack health state evaluation system |
| CN203673046U (en) * | 2014-01-22 | 2014-06-25 | 浙江精雷电器有限公司 | Storage battery state display device |
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2014
- 2014-01-22 CN CN201410028725.1A patent/CN103792491B/en not_active Expired - Fee Related
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| CN103792491A (en) | 2014-05-14 |
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| CB02 | Change of applicant information |
Address after: Ring road 313201 Zhejiang city in Huzhou Province, Deqing County Town, No. 58 Applicant after: ZHEJIANG JINGLEI COMPRESSOR CO., LTD. Address before: 313201, Deqing, 58, Ring North Road, Deqing, Zhejiang, Huzhou Applicant before: ZHEJIANG KINGLEO ELECTRICAL APPLIANCES CO., LTD. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG KING LEO ELECTRONICS CO., LTD. TO: ZHEJIANG KINGLEO ELECTRICAL APPLIANCES CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Storage battery state display device Effective date of registration: 20170927 Granted publication date: 20170201 Pledgee: Zhejiang Deqing rural commercial bank Limited by Share Ltd Pledgor: ZHEJIANG JINGLEI COMPRESSOR CO., LTD. Registration number: 2017980000387 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210122 |