CN202676891U - Cell state detection and record analyzer - Google Patents

Cell state detection and record analyzer Download PDF

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Publication number
CN202676891U
CN202676891U CN 201220271657 CN201220271657U CN202676891U CN 202676891 U CN202676891 U CN 202676891U CN 201220271657 CN201220271657 CN 201220271657 CN 201220271657 U CN201220271657 U CN 201220271657U CN 202676891 U CN202676891 U CN 202676891U
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China
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module
acquisition module
analog
links
battery
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CN 201220271657
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Chinese (zh)
Inventor
高小群
宫春勇
姜振华
李为
高述辕
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SHANDONG SHENPU TRAFFIC TECHNOLOGY Co Ltd
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SHANDONG SHENPU TRAFFIC TECHNOLOGY Co Ltd
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Abstract

A cell state detection and record analyzer is suitable for secondary cell groups possessing any scale, any type and any connection mode. The cell state detection and record analyzer comprises a master control unit MCU, a display module, a clock module, a communication module, a storage module, a man-machine interaction module, a power supply module, a single voltage acquisition module, a current acquisition module, a single cell temperature acquisition module and an expansion unit. A high cell state monitoring precision is provided, for example: the detection precision of an electric amount can reach 5%, the detection precision of a voltage can reach 0.3%, and the detection precision of a current can reach 0.4%. The small-scale test requirements of small-scale electric vehicle power cells and cell manufacturers can be satisfied, and the work efficiency is substantially raised.

Description

Battery status detection record analyser
Technical field
Battery status detection record analyser relates to a kind of battery status detection, record, analytical equipment with expanded function, is applicable to the secondary battery of any scale, type and connected mode.
Background technology
Secondary battery in the market is basically take ni-mh, lead-acid battery, lithium ion polymer battery as main; Ni-MH battery group and lithium ion polymer battery pack are provided on electric bus and the high-end electric four-wheel vehicle mostly, and the lead-acid battery group is provided on the low-speed electronic vehicle (low-speed electronic car, electronic microcaloire, tour bus, golf cart, electri forklift and other dillies) mostly.Ni-MH battery group and lithium ion polymer battery pack are convenient to carry out distributed control owing to monomer whose voltage all is lower than 5V, and its battery detecting technology has reached quite ripe level; And lead-acid battery is subjected to the market clout classification many owing to the monomer whose specification, and that common is 2V, and 6V and 12V monomer have produced the 8V monomer according to the market demand again in recent years.Detection management for Ni-MH battery group and its battery status of lithium ion polymer battery pack (cell voltage, electric current, temperature, electric weight, life-span, internal resistance etc.) all has quite ripe chip to go to realize, and for the lead-acid battery group because monomer whose combination is complicated various and voltage is higher, thereby cause chip development difficulty and cost to increase, the chip of developing on the market mostly is that single voltage detecting and electric weight detects.No matter be Ni-MH battery group and lithium ion polymer battery pack, or lead-acid batteries, the equipment that is used for battery detecting and management all shows slightly heaviness and function singleness, accuracy of detection neither be very high, and mostly there are not expanded function and an online data analytic function, its target client is also narrow, common large-scale battery manufacturers, and large-scale power system operator and large-scale electric vehicle manufacturer tend to introduce these equipment; And for some on a small scale electric vehicle dynamic cell test and bench-scale testing tests of battery manufacturer, these equipment are slightly inadequate on functional completeness and portable operability; Its consequence of bringing is exactly result and the index that needs the electric battery test that a large amount of manpower of waste and time goes to realize that manually the client needs, and accuracy and precision are affected by human factors and also are difficult to be guaranteed, and waste time and energy inefficiency.At present in the urgent need to develop a kind of can be portable, can compatible all kinds of electric battery, thereby realize high precision, comprehensive detection battery status, and then carry out the equipment of online record or off-line analysis.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the some shortcomings that prior art exists, a kind of online detection of the secondary battery for any type, specification and connected mode is provided, can comprehensive detection and voltage of stored record cell, electric current, temperature, electric weight, life-span etc., can the round Realization high precision, and the battery status detection record analyser with expanded function.
The technical scheme that its technical matters that solves the utility model adopts is: this battery status detection record analyser is characterized in that: comprise main control unit MCU, display module, clock module, communication module, memory module, human-computer interaction module, power module, monomer voltage acquisition module, current acquisition module, monomer temperature acquisition module and expanding element; Described monomer voltage acquisition module, current acquisition module, monomer temperature acquisition module, expanding element, human-computer interaction module, clock module and display module link to each other with main control unit MCU respectively, communication module and memory module and main control unit MCU interconnection; Power module is given respectively display module, current acquisition module, monomer voltage acquisition module, main control unit MCU and expanding element power supply.
Preferably
Described monomer voltage acquisition module comprises the first multiplex adapter, first signal modulate circuit and the first analog to digital converter, described the first multiplex adapter links to each other with electric battery, the first signal modulate circuit links to each other with the first multiplex adapter, the first analog to digital converter links to each other with the first signal modulate circuit, the first analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described monomer voltage acquisition module is to finish the monomer voltage collection of secondary battery.
Described current acquisition module comprises current sensor, secondary signal modulate circuit and the second analog to digital converter, described current sensor links to each other with electric battery, the secondary signal modulate circuit links to each other with current sensor, the second analog to digital converter links to each other with the secondary signal modulate circuit, the second analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described current acquisition module is to finish real-time detection and the collection of secondary battery charging and discharging currents.
Described monomer temperature acquisition module comprises multi way temperature sensor, the second multiplex adapter, the 3rd signal conditioning circuit and the 3rd analog to digital converter, described multi way temperature sensor links to each other with electric battery, the second multiplex adapter links to each other with the multi way temperature sensor, the 3rd signal conditioning circuit links to each other with the second multiplex adapter, the 3rd analog to digital converter links to each other with the 3rd signal conditioning circuit, the 3rd analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described monomer temperature acquisition module is to finish real-time detection and the collection of each monomer temperature of secondary battery.
Described clock module comprises clock chip, crystal oscillator and rechargeable battery; The function of described clock module is to send current date and time to main control unit MCU;
Described communication module comprises USB and two kinds of interface connected modes of RS232, and the function of described communication module is to communicate by letter with host computer for described battery status detection record analyser, and then can realize that battery status detects the online or off-line analysis of data;
Described memory module comprises the USB interface storage, SD card and interface chip, and the function of described memory module is to detect data for storage and record battery status;
Described human-computer interaction module comprises keyboard and driving circuit, and the function of described human-computer interaction module is the display interface prompting according to battery status detection record analyser, finishes all keypress function operations;
Described expanding element is a kind of or combination in vehicle speed signal acquisition module or the internal resistance detection module.Can expand according to different customer demands; For electric vehicle manufacturer, this expanding element can be the vehicle speed signal acquisition module; To battery manufacturer, this expanding element can be the internal resistance detection module;
The inner Integrating controls strategies of main control unit MCU, the normal realization of described control strategy control battery status detection record analyser all functions.
LCD MODULE is liquid crystal display, and its function is to show in real time that according to the instruction that main control unit MCU sends battery status detects data and current date and time;
Power module comprises the power supply of three groups of mutual electrical isolation, and one group of power supply is used for to the current acquisition module for power supply, and one group of power supply is used for to the power supply of monomer voltage acquisition module, and one group of power supply is used for to main control unit MCU and expanding element power supply;
Compared with prior art, the beneficial effect of battery status detection record analyser described in the utility model is: for the deficiency in current battery state inspection field, enforcement is for the online detection of the secondary battery of any type, specification and connected mode, can comprehensive detection and voltage of stored record cell, electric current, temperature, electric weight, life-span etc., can increase according to customer demand simultaneously the expanded functions such as vehicle speed signal collection, can conveniently carry out in real time or off line data analysis with host computer is online, easy to carry; In addition, battery status detection record analyser described in the utility model also possesses higher battery status monitoring accuracy, and for example the accuracy of detection of electric weight can reach 5%, and the accuracy of detection of voltage can reach 0.3%, and the accuracy of detection of electric current can reach 0.4% etc.; Can be good at solving some on a small scale electric vehicle dynamic cell test and battery manufacturer bench-scale testing test requests, greatly improved work efficiency.
Description of drawings
The circuit structure theory diagram of Fig. 1 the utility model battery status detection record analyser;
Fig. 2 the utility model battery status detection record analyser monomer voltage acquisition module structural representation;
Fig. 3 the utility model battery status detection record analyser current acquisition modular structure synoptic diagram;
Fig. 4 the utility model battery status detection record analyser monomer temperature acquisition module structural representation;
The function control flow chart of the inner Integrating controls strategies of Fig. 5 the utility model battery status detection record analyser main control unit MCU;
Fig. 6 the utility model battery status detection record analyser surface structure synoptic diagram.
Wherein: 1, power interface 2, current signal and expanding element signaling interface 3, monomer voltage signaling interface 4, monomer temperature signaling interface 5, SD card interface 6, USB interface 7, RS232 communication interface 8, liquid crystal display 9, keyboard.
Embodiment
Below in conjunction with accompanying drawing 1-6 the utility model battery status detection record analyser is described in further details.
Be illustrated in figure 1 as the structured flowchart of the utility model battery status detection record analyser, its inner structure comprises main control unit MCU, display module, clock module, communication module, memory module, human-computer interaction module, power module, monomer voltage acquisition module, the current acquisition module, monomer temperature acquisition module and expanding element; Wherein, the monomer voltage acquisition module, the current acquisition module, the monomer temperature acquisition module, expanding element, human-computer interaction module, clock module links to each other with main control unit MCU respectively with LCD MODULE, communication module and memory module and main control unit MCU interconnection; Power module is given respectively the liquid crystal display module, current acquisition module, monomer voltage acquisition module, main control unit MCU and expanding element power supply.
The inner Integrating controls strategies of main control unit MCU is used for the normal realization of control battery status detection record analyser all functions.
LCD MODULE is liquid crystal display, and its function is to show in real time that according to the instruction that main control unit MCU sends battery status detects data and current date and time;
Clock module comprises clock chip, crystal oscillator and rechargeable battery, and its function is to send current date and time to main control unit MCU;
Communication module comprises USB and two kinds of interface modes of RS232, and its function is to communicate by letter with host computer for described battery status detection record analyser, and then can realize that battery status detects the online or off-line analysis of data;
Memory module comprises the USB interface storage, SD card and interface chip, and its function is to detect data for storage and record battery status;
Human-computer interaction module comprises keyboard and driving circuit, and its function is the display interface prompting according to battery status detection record analyser, finishes all keypress function operations;
Power module comprises the power supply of three groups of mutual electrical isolation, and one group of power supply is used for to the current acquisition module for power supply, and one group of power supply is used for to the power supply of monomer voltage acquisition module, and one group of power supply is used for to main control unit MCU and expanding element power supply;
Expanding element can be expanded according to different customer demands; For electric vehicle manufacturer, this expanding element can be the vehicle speed signal acquisition module; To battery manufacturer, this expanding element can be the internal resistance detection module;
Be illustrated in figure 2 as the utility model battery status detection record analyser monomer voltage acquisition module structural representation, its inside comprises the first multiplex adapter, first signal modulate circuit and the first analog to digital converter, described the first multiplex adapter links to each other with electric battery, the first signal modulate circuit links to each other with the first multiplex adapter, the first analog to digital converter links to each other with the first signal modulate circuit, the first analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described monomer voltage acquisition module is to finish the monomer voltage collection of secondary battery, and its ultimate principle is:
The first multiplex adapter will be detected successively in order cell and be communicated with polar circuit thereafter, then the voltage of detected monomer leads to and detects on the multiplexing line, then through the first signal modulate circuit, it is converted in the convertible voltage range of the first analog to digital converter by certain multiplying power, then the first analog to digital converter is converted to digital value with the voltage analog value, offers main control unit MCU by communication interface again and processes;
Be illustrated in figure 3 as the utility model battery status detection record analyser current acquisition modular structure synoptic diagram, its inner structure comprises current sensor, secondary signal modulate circuit and the second analog to digital converter, described current sensor links to each other with electric battery, the secondary signal modulate circuit links to each other with current sensor, the second analog to digital converter links to each other with the secondary signal modulate circuit, the second analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described current acquisition module is to finish real-time detection and the collection of secondary battery charging and discharging currents.Its ultimate principle is:
Current sensor is voltage signal with the electric current linear transformation in the electric battery series line, this voltage signal is again through the secondary signal modulate circuit, be converted in the collectable voltage range of the second analog to digital converter, then the second analog to digital converter is converted to digital quantity with voltage signal, offers main control unit MCU by communication interface again and processes.
Be illustrated in figure 4 as the utility model battery status detection record analyser monomer temperature acquisition module structural representation, its inner structure comprises multi way temperature sensor, the second multiplex adapter, the 3rd signal conditioning circuit and the 3rd analog to digital converter, described multi way temperature sensor links to each other with electric battery, the second multiplex adapter links to each other with the multi way temperature sensor, the 3rd signal conditioning circuit links to each other with the second multiplex adapter, the 3rd analog to digital converter links to each other with the 3rd signal conditioning circuit, the 3rd analog to digital converter output digit signals, digital signal is received by main control unit MCU.The function of described monomer temperature acquisition module is to finish real-time detection and the collection of each monomer temperature of secondary battery.Its ultimate principle is:
Temperature sensor of the corresponding installation of every joint cell, by the second multiplex adapter temperature signal with sensor output in turn, give the rear utmost point the 3rd signal conditioning circuit, the 3rd signal conditioning circuit is converted into signal in the switching signal scope of the 3rd analog to digital converter, then the 3rd analog to digital converter is converted to digital value with the analogue value of temperature signal, offers main control unit MCU by communication interface again and processes;
Be illustrated in figure 6 as the utility model battery status detection record analyser surface structure synoptic diagram, wherein:
The interface identifier of power interface 1 is " POWER ", adopts centrally connected power supply power socket (pin type) interface, and corresponding centrally connected power supply attaching plug (pass) special purpose interface line is provided;
Current signal and expanding element signaling interface 2 adopts seven core aviation plugs, and plug is defined as follows: A, publicly, and B, expanding element signal, C, positive supply, D, negative supply, E, electric current input negative pole, F, electric current input are anodal, G, Hall element signal; Current interface can connect the foreign current sensor, comprises shunt and Hall current sensor; The expanding element interface connects extended device pulse output signals line;
The interface identifier of monomer voltage signaling interface 3 is " CELL_VOLT ", adopts the DB25 interface, supporting dedicated test line;
Monomer temperature signaling interface 4 adopts the DB25 interface, connects external temperature sensor, supporting Special-purpose connecting line;
SD card interface 5 adopts eject SD draw-in groove, and the storage card plug is convenient;
USB interface 6 compatible USB2.0 and following host-host protocol are supported the USB interface storage;
RS232 communication interface 7 adopts the DB9 interface, uses the DB9 extended line, can connect machine with PC; Can detect the reception of uploading in real time of data and operational order by this interface;
Liquid crystal display 8 is used for showing that battery status detects information and other keyboard operation information;
Keyboard 9 is used for according to the operation of liquid crystal display content realization to battery status detection record analyser.
Be illustrated in figure 5 as the function control flow chart of the inner Integrating controls strategies of the utility model battery status detection record analyser main control unit MCU, its control flow of described control strategy is following steps:
Step 1: battery status detection record analyser powers on after the rear beginning, and its internal hardware is carried out initialization operation, the current date and time instruction that main control unit MCU receive clock module sends, and show by LCD MODULE;
Step 2: after step 1 is finished about 5 ~ 10S automatically, described LCD MODULE shows and enters interface of main menu, and can select the function that need to finish or by the USB of communication module or the on line operation of RS232 Interface realization and host computer this moment by the keyboard operation of human-computer interaction module;
Step 3: be online function if the keyboard operation by human-computer interaction module in the step 2 selects, then whether described LCD MODULE shows online interface, if this moment, the keyboard operation of described human-computer interaction module was not moved, then whether described LCD MODULE continues to show online interface, otherwise, if the keyboard operation of described human-computer interaction module action, then described LCD MODULE shows that online parameter arranges the interface, after setting is finished, described LCD MODULE demonstration enters interface of main menu, otherwise described LCD MODULE continues to show that online parameter arranges the interface;
Step 4: be that interface operation is set if the keyboard operation by human-computer interaction module in the step 2 selects, then can arrange by the keyboard operation completion system parameter of described LCD MODULE display interface prompting in conjunction with human-computer interaction module, Time of Day arranges, the voltage limit value arranges, voltage calibration arranges, and returns master menu and enters the operation such as the corresponding function that detects the interface;
Step 5: if what select by the keyboard operation of human-computer interaction module in the keyboard operation by human-computer interaction module in the step 2 or the step 4 is to enter to detect the interface, then described LCD MODULE will show the detection data, and regularly store the detection data according to the inner Integrating controls strategies of main control unit MCU, can turn over the screen operation by the keyboard operation of human-computer interaction module as required during this period;
Step 6: be to enter query interface if the keyboard operation by human-computer interaction module in the step 2 selects, then can be by the keyboard operation completion system parameter query of described LCD MODULE display interface prompting in conjunction with human-computer interaction module, the operational factor inquiry, the inquiry of voltage limit value is returned master menu and is entered the operation such as the corresponding function that detects the interface;
Step 7: be to enter data storage interface if the keyboard operation by human-computer interaction module in the step 2 selects, it is synchronous that then whether described LCD MODULE demonstration carries out data, if the keyboard operation of described human-computer interaction module action, then whether described LCD MODULE shows online interface, otherwise described LCD MODULE shows interface of main menu; When whether described LCD MODULE showed online interface, if during the keyboard operation of described human-computer interaction module action, then described LCD MODULE showed that online parameter arranges the interface, otherwise whether described LCD MODULE continues to show online interface; When online parameter setting is finished, the data of then finishing described battery status detection record analyser and host computer are synchronous, 0.5 described LCD MODULE demonstration enters interface of main menu after second, otherwise described LCD MODULE continues to show that online parameter arranges the interface.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.

Claims (9)

1. a battery status detection record analyser is characterized in that: comprise main control unit MCU, display module, clock module, communication module, memory module, human-computer interaction module, power module, monomer voltage acquisition module, current acquisition module, monomer temperature acquisition module and expanding element; Described monomer voltage acquisition module, current acquisition module, monomer temperature acquisition module, expanding element, human-computer interaction module, clock module and display module link to each other with main control unit MCU respectively, communication module and memory module and main control unit MCU interconnection; Power module is given respectively display module, current acquisition module, monomer voltage acquisition module, main control unit MCU and expanding element power supply.
2. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described monomer voltage acquisition module comprises the first multiplex adapter, first signal modulate circuit and the first analog to digital converter, described the first multiplex adapter links to each other with electric battery, the first signal modulate circuit links to each other with the first multiplex adapter, the first analog to digital converter links to each other with the first signal modulate circuit, the first analog to digital converter output digit signals, digital signal is received by main control unit MCU.
3. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described current acquisition module comprises current sensor, secondary signal modulate circuit and the second analog to digital converter, described current sensor links to each other with electric battery, the secondary signal modulate circuit links to each other with current sensor, the second analog to digital converter links to each other with the secondary signal modulate circuit, the second analog to digital converter output digit signals, digital signal is received by main control unit MCU.
4. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described monomer temperature acquisition module comprises multi way temperature sensor, the second multiplex adapter, the 3rd signal conditioning circuit and the 3rd analog to digital converter, described multi way temperature sensor links to each other with electric battery, the second multiplex adapter links to each other with the multi way temperature sensor, the 3rd signal conditioning circuit links to each other with the second multiplex adapter, the 3rd analog to digital converter links to each other with the 3rd signal conditioning circuit, the 3rd analog to digital converter output digit signals, digital signal is received by main control unit MCU.
5. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described clock module comprises clock chip, crystal oscillator and rechargeable battery.
6. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described communication module comprises USB and two kinds of interface connected modes of RS232.
7. a kind of battery status detection record analyser according to claim 1 is characterized in that: described memory module comprises USB interface storage, SD card and interface chip.
8. a kind of battery status detection record analyser according to claim 1, it is characterized in that: described human-computer interaction module comprises keyboard and driving circuit.
9. a kind of battery status detection record analyser according to claim 1 is characterized in that: described expanding element is a kind of or combination in vehicle speed signal acquisition module or the internal resistance detection module.
CN 201220271657 2012-06-08 2012-06-08 Cell state detection and record analyzer Expired - Fee Related CN202676891U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102680908A (en) * 2012-06-08 2012-09-19 山东申普交通科技有限公司 Battery status detection record analyzer and control method
CN103094964A (en) * 2013-01-31 2013-05-08 合肥创源车辆控制技术有限公司 Ad-hoc network battery monitoring micro unit
CN103197254A (en) * 2013-03-28 2013-07-10 西南大学 Testing device and testing method of battery performance in the process of moving of electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102680908A (en) * 2012-06-08 2012-09-19 山东申普交通科技有限公司 Battery status detection record analyzer and control method
CN103094964A (en) * 2013-01-31 2013-05-08 合肥创源车辆控制技术有限公司 Ad-hoc network battery monitoring micro unit
CN103197254A (en) * 2013-03-28 2013-07-10 西南大学 Testing device and testing method of battery performance in the process of moving of electric vehicle
CN103197254B (en) * 2013-03-28 2015-05-13 西南大学 Testing device and testing method of battery performance in the process of moving of electric vehicle

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Granted publication date: 20130116

Termination date: 20160608