CN106772090A - The Analysis of Networking method and Analysis of Networking system of Monitored System of Industrial Storage Cell - Google Patents
The Analysis of Networking method and Analysis of Networking system of Monitored System of Industrial Storage Cell Download PDFInfo
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- CN106772090A CN106772090A CN201611237505.5A CN201611237505A CN106772090A CN 106772090 A CN106772090 A CN 106772090A CN 201611237505 A CN201611237505 A CN 201611237505A CN 106772090 A CN106772090 A CN 106772090A
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- storage cell
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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Abstract
The invention discloses the Analysis of Networking method and Analysis of Networking system of Monitored System of Industrial Storage Cell, methods described includes：Calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of different network construction forms；Monitored System of Industrial Storage Cell to above-mentioned different network construction forms is tested, and obtains the acquisition module joint number maximum of test；The acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form is compared with the acquisition module joint number maximum of test；When the acquisition module joint number maximum and the error of the acquisition module joint number maximum of test for calculating are within default error threshold, networking joint number searches the network construction form of Monitored System of Industrial Storage Cell therewith corresponding to the minimum acquisition module joint number maximum for calculating of difference according to demand.The acquisition module joint number maximum that the method will be calculated, without being tested checking in large quantities, reduces Networking Design cost as the theoretical foundation of the Monitored System of Industrial Storage Cell for designing new network construction form.
Description
Technical field
Networking the present invention relates to the technical field of Monitored System of Industrial Storage Cell, more particularly to Monitored System of Industrial Storage Cell divides
Analysis method and Analysis of Networking system.
Background technology
Monitored System of Industrial Storage Cell is mainly realized carrying out monitor in real time to the battery-operated situation in data center machine room, bag
Include the situation of battery tension, temperature, internal resistance and battery current size.Monitored System of Industrial Storage Cell is main by XBM-R2100
Accumulator internal resistance acquisition module, XBM-G2100 intelligent gateways module and the part structure of XBM-I2100 battery pack currents acquisition module three
Into.Existing Monitored System of Industrial Storage Cell is an intelligent gateway module, several current acquisition modules and internal resistance acquisition module
Network construction form, ideally, the acquisition module joint number maximum that the system can be accessed is 192.Acquisition module joint number is maximum
Value 192 is saved, and limits the lifting of Monitored System of Industrial Storage Cell networking performance.Increasing acquisition module joint number maximum need to carry out new group
The design of the Monitored System of Industrial Storage Cell of web form；And existing Networking Design does not have theoretical foundation, can only carry out largely test into
Row checking, carries out the relatively costly of experiment test.
Therefore, prior art has yet to be improved and developed.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided accumulator monitoring system
The Analysis of Networking method and Analysis of Networking system of system, solve carries out test and tests to Design of battery monitor system in the prior art
The relatively costly technical problem of card.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of Analysis of Networking method of ice storing time system, wherein, methods described includes：
Step A, calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of different network construction forms；
Step B, the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms are tested, and obtain the acquisition module section of test
Number maximum；
Step C, the acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form and survey
The acquisition module joint number maximum of examination is compared；
Step D, when calculate acquisition module joint number maximum with test acquisition module joint number maximum error pre-
If when within error threshold, networking joint number searches the minimum acquisition module joint number maximum for calculating of difference therewith according to demand
The network construction form of corresponding Monitored System of Industrial Storage Cell.
The Analysis of Networking method of described ice storing time system, wherein, the step A is specifically included：
A1, the Monitored System of Industrial Storage Cell for choosing several network construction forms；
A2, calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of each network construction form.
The Analysis of Networking method of described Monitored System of Industrial Storage Cell, wherein, the step A1 is specifically included：
A11, acquisition module node voltage formula is calculated according to the Monitored System of Industrial Storage Cell of existing network construction form, and analyzed
Going out acquisition module node voltage minimum value influences the acquisition module joint number maximum of Monitored System of Industrial Storage Cell；
A12, according to acquisition module node voltage formula determine influence node voltage minimum value parameter be acquisition module
Number n, conducting electric current Ix, order wire equivalent resistance Rc；
A13, the network construction form by adjusting above three parameter determination Monitored System of Industrial Storage Cell.
The Analysis of Networking method of described Monitored System of Industrial Storage Cell, wherein, by increasing system boxcar, the electricity of regulation first
Resistance, the resistance of 3rd resistor, adjust the impedance of order wire to adjust the parameter.
The Analysis of Networking method of described ice storing time system, wherein, when the Monitored System of Industrial Storage Cell is using intelligence
During gateway network construction form, system acquisition module joint number maximum is limited to node minimum voltage；When the Monitored System of Industrial Storage Cell
From an intelligent gateway plus system boxcar network construction form when, system acquisition module joint number maximum be limited to be
System performance loop total current.
The Analysis of Networking method of described ice storing time system, wherein, when the Monitored System of Industrial Storage Cell selects one
Intelligent gateway plus system boxcar network construction form when, the number of system acquisition module isLoop total current
IbIt is the current-carrying capacity of order wire in system, system acquisition module joint number maximum is limited to selected order wire model.
The Analysis of Networking method of described ice storing time system, wherein, acquisition module joint number maximum and the survey of calculating
Within default error threshold, it is 3% to preset error threshold to the error of the acquisition module joint number maximum of examination.
A kind of Analysis of Networking system of ice storing time system, wherein, the system includes：
Maximum value calculation module, for acquisition module joint number in the Monitored System of Industrial Storage Cell for calculating different network construction forms most
Big value；
Maximum test module, tests for the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms, obtains and surveys
The acquisition module joint number maximum of examination；
Comparison module, the acquisition module joint number for will be calculated in the Monitored System of Industrial Storage Cell of same network construction form is maximum
Value is compared with the acquisition module joint number maximum of test；
Network construction form searching modul, for the acquisition module joint number maximum when calculating with the acquisition module joint number tested most
When the error range of big value is within preset range, networking joint number searches the minimum acquisition module joint number of difference therewith according to demand
The network construction form of the Monitored System of Industrial Storage Cell corresponding to maximum.
The Analysis of Networking system of described ice storing time system, wherein, the maximum value calculation module is specifically included：
Network construction form chooses unit, the Monitored System of Industrial Storage Cell for choosing several network construction forms；
Computing unit, for acquisition module joint number maximum in the Monitored System of Industrial Storage Cell for calculating each network construction form.
Described Monitored System of Industrial Storage Cell Analysis of Networking system, wherein, the network construction form is chosen unit and is specifically included：
Analysis subelement, for calculating acquisition module node voltage according to the Monitored System of Industrial Storage Cell of existing network construction form
Formula, and analyze the acquisition module joint number maximum of acquisition module node voltage minimum value influence Monitored System of Industrial Storage Cell；
Parameter determination subelement, for determining influence node voltage minimum value according to acquisition module node voltage formula
Parameter is number n, the conducting electric current I of acquisition modulex, order wire equivalent resistance Rc；
Subelement is chosen, the network construction form for choosing Monitored System of Industrial Storage Cell by adjusting above three parameter.
The invention provides the Analysis of Networking method of Monitored System of Industrial Storage Cell, when the acquisition module section for calculating in the method
When the error of number maximums and the acquisition module joint number maximum of test is within default error threshold, networking joint number according to demand
The network construction form of Monitored System of Industrial Storage Cell therewith corresponding to the minimum acquisition module joint number maximum of difference is searched, by what is calculated
Acquisition module joint number maximum as the Monitored System of Industrial Storage Cell for designing new network construction form theoretical foundation, it is a large amount of without carrying out
Ground test checking, reduces Networking Design cost.
Brief description of the drawings
Fig. 1 is the flow chart of Monitored System of Industrial Storage Cell Analysis of Networking method of the invention.
Fig. 2 a are the first equivalent circuit diagrams on RX_O order wires of the invention.
Fig. 2 b are the second equivalent circuit diagrams on RX_O order wires of the invention.
Fig. 2 c are the third equivalent circuit diagrams on RX_O order wires of the invention.
Fig. 3 is the scatter diagram of the node voltage of a-th acquisition module of the invention.
Fig. 4 is the circuit diagram of RBUS communication bus of the invention.
Fig. 5 is optocoupler current-limiting resistance of the invention and rising edge trailing edge time graph.
Fig. 6 is Monitored System of Industrial Storage Cell resistance parameter combinatory analysis table of the invention.
Fig. 7 is Monitored System of Industrial Storage Cell order wire impedance parameter analytical table of the invention.
Fig. 8 is Monitored System of Industrial Storage Cell network construction form one of the invention.
Fig. 9 is Monitored System of Industrial Storage Cell network construction form two of the invention.
Figure 10 is Monitored System of Industrial Storage Cell acquisition module joint number maximum theory analysis of the invention right with actual measurement test
Compare form.
Figure 11 is the structured flowchart of the Analysis of Networking system of Monitored System of Industrial Storage Cell of the invention.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
The acquisition module joint number maximum of existing Monitored System of Industrial Storage Cell limits networking performance, and acquisition module joint number
Maximum is limited by the network construction form of Monitored System of Industrial Storage Cell again.By the networking for selecting suitable Monitored System of Industrial Storage Cell
Form can further lift networking performance.The present invention is by comparing the acquisition module joint number calculated in Monitored System of Industrial Storage Cell most
Big value and the acquisition module joint number maximum of test, obtain both error very littles, and difference is minimum therewith to search demand networking joint number
Calculating acquisition module joint number maximum corresponding to Monitored System of Industrial Storage Cell network construction form.
Fig. 1 is referred to, Fig. 1 is the flow chart of the Analysis of Networking method of Monitored System of Industrial Storage Cell of the invention, specific steps
It is as follows：
Step A, calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of different network construction forms；
Step B, the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms are tested, and obtain the acquisition module section of test
Number maximum；
Step C, the acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form and survey
The acquisition module joint number maximum of examination is compared；
Step D, exist with the error of the acquisition module joint number maximum of test when the acquisition module joint number maximum that calculates
When within default error threshold, networking joint number is searched corresponding to the minimum acquisition module joint number maximum of difference therewith according to demand
Monitored System of Industrial Storage Cell network construction form.
The calculating of module joint number maximum, institute are acquired by the Monitored System of Industrial Storage Cell for choosing different network construction forms
Step A is stated to specifically include：
Step 11, the Monitored System of Industrial Storage Cell for choosing several network construction forms.
Existing accumulator monitoring product, according to product scene application scenarios, sets ice storing time system group network form,
It is the network construction form of an intelligent gateway module, several current acquisition modules and electrical resistance collection module.The accumulator monitoring system
The key component circuit of system is an intelligent gateway module, n current acquisition module and electrical resistance collection module.To existing electric power storage
Pond monitoring system is analyzed, and analyzes the influence ginseng of acquisition module joint number maximum in the existing Monitored System of Industrial Storage Cell of influence
Number, the network construction form of Monitored System of Industrial Storage Cell is set according to the regulation of affecting parameters.
Monitored System of Industrial Storage Cell according to existing network construction form calculates acquisition module node voltage formula, and analyzes and adopt
Collection Module nodes voltage minimum influences the acquisition module joint number maximum of Monitored System of Industrial Storage Cell.To the Monitored System of Industrial Storage Cell
Key component circuit simplified, Monitored System of Industrial Storage Cell is reduced to the equivalent circuit on RX_O order wires.All modules
In the state of equal normal work, Monitored System of Industrial Storage Cell is reduced to the equivalent circuit on RX_O order wires, as shown in Figure 2 a, is
The first equivalent circuit diagram on RX_O order wires of the invention, Rc is the equivalent resistance of order wire, and Rx is each acquisition module
Equivalent resistance, V1-Vn is the voltage for actually accessing each acquisition module, and n is the quantity of acquisition module in equivalent current.The collection
The series resistance that resistance is made up of fuse and first resistor R37 or fuse with second resistance R38 in module, in acquisition module
Selected fuse resistance RfThe Ω of ≈ 1, due to R37 >=Rf, R38 >=Rf, thus, it is believed that R37 ≈ Rx, or R38 ≈ Rx。
As shown in Figure 2 b, it is the second equivalent circuit diagram on further RX_O order wires of the invention, from Fig. 2 b,
Ideally, V1=Vn, wherein V2=Vn-1 ... ..., Va=Vn-a+1, a are a-th acquisition module, andCan
Further, the equivalent circuit diagram on RX_O order wires is simplified, is on RX_O order wires of the invention as shown in Figure 2 c
Third equivalent circuit diagram.Analyzed from Fig. 2 c, under optical coupling secondary edges saturation conduction state, if flowing through the equivalent electric of acquisition module
The electric current for hindering Rx is ix, then first acquisition module node voltage beSecond acquisition module section
Putting voltage isVBUS0For whole order wire accesses voltage, n is accumulator monitoring system
The joint number of acquisition module, i in systemxTo flow through the electric current of acquisition module equivalent resistance Rx, Rc is the equivalent resistance of order wire.
A-th acquisition module node voltage be：
Further formula 1 can be reduced to：
A and V are drawn out according to formula 2aBetween scatter diagram, as shown in figure 3, be a-th acquisition module section of the invention
The scatter diagram of point voltage.From the figure 3, it may be seen that when a closer toThen VaIt is smaller, it is when acquisition module deviates intelligent gateway module
Interface is more remote, then the node voltage value that it is obtained is smaller.
The further circuit map analysis by RBUS communication bus, Fig. 4 is the electricity of the RBUS communication bus in the present invention
Lu Tu, the minimum value of the acquisition module node voltage in existing Monitored System of Industrial Storage Cell is derived with reference to the circuit diagram.
In Monitored System of Industrial Storage Cell, when intelligent gateway module receives automatic addressing, temperature inquiry, the voltage of host computer
After the instructions such as inquiry, internal resistance inquiry and electric current inquiry, can now be showed in RBUS buses to the corresponding instruction of order wire broadcast
For there is the change of low and high level in RX_O.
When RX_O is high level (12V), more than the maximum threshold voltage 2.5V of metal-oxide-semiconductor, metal-oxide-semiconductor Q7 saturation conductions, MOS
The drain current of pipe Q7VBUS=12V, R38=100K Ω, then Id=0.12mA, now, optocoupler
PS2701 does not work.
When RX_O is low level (0V), now, metal-oxide-semiconductor Q7 is not turned on, if VBUS is more than the maximum threshold voltage of metal-oxide-semiconductor
2.5V, then metal-oxide-semiconductor Q6 saturation conductions, optocoupler PS2701 work.The primary current of optocoupler PS2701R37=2.2K Ω, Vf=1.1V.Optocoupler drives primary side light emitting diode by primary current, and then
Control the working condition of secondary phototriode.
When the level on RX_O order wires is high level, in formula 2When on RX_O order wires
When level is low level, in formula 2In the system design circuit, V is takenf=1.1V, due to R37
Much smaller than R38, therefore, IdMuch smaller than i, when there is low level on RX_O order wires, the acquisition module of system proper communication is met
Node voltage VaMinimum value limits the maximum of Monitored System of Industrial Storage Cell acquisition module joint number.
With reference to Fig. 4, the Monitored System of Industrial Storage Cell acquisition module node voltage minimum value of existing network construction form is calculated.Secondary light
The conducting electric current size i of quick triodecWorking condition with phototriode is relevant, and the working condition of phototriode includes satisfying
With state and magnifying state.And primary current i influences the working condition of secondary phototriode, primary side secondary directly drives pass
Connection is current transfer ratio CTR.
Ic0It is the maximum conducting electric current of secondary phototriode.As iCTR >=Ic0When, phototriode working condition is
Saturation state, phototriode is fully on, the conducting electric current size of secondary phototriodeBecause RXD
Voltage be 0V, thenAs iCTR ＜ Ic0When, phototriode working condition is magnifying state, phototriode
It is fully on, the conducting electric current size i of secondary phototriodec=iCTR.
It can be seen from DC electrical characteristic, secondary conduction voltage drop maintains below 0.8V and could be identified as by single-chip microcomputer pin
Low level, high level is then identified as higher than 2V；If between 0.8V-2V, in a uncertain state.Cause be
System realizes proper communication, and according to the requirement of TTL fiduciary levels, input low level should be less than 1.2V.It is RXD<=1.2V, according toObtain RXD=VDD-ic×R36＜=1.2V.In the circuit of the system, VDD=5V, R36=1K Ω,
Can then derive
By consulting PS2701 databooks, the current transfer ratio curve map of the optocoupler is obtained, now primary current is in 3-
4mA is interval, takes CTR=115%, obtains
According to the formula of primary currentDerive VBUS >=Vf+ 3.3 × R37, wherein Vf=
1.1V, R37=2.2K Ω, and then obtain the minimum value V of VBUS in the system in theoryf+ i × R37=1.1+3.3*2.2=
8.37V。
When optocoupler works, and during metal-oxide-semiconductor Q6 saturation conductions, the minimum amount of voltage that of VBUS is Va, by primary side pair
Side relationship analysis takes Va=8.37V, wherein VBUS0=12V.The order wire of the 28AWG used in the system, 400mm, inquiry
《AWG current-carrying capacity inquiry tables》Can obtain 400mm communication line resistance R longc0=0.0908 Ω, then Rc=0.1816 Ω.AndOrder(n is odd number), n=191 is obtained by formula 2；Order(n is even
Number), n=192 is obtained by formula 2, n is the number of acquisition module in Monitored System of Industrial Storage Cell.Comprehensive analysis, in existing system, 1
The system of intelligent gateway module, most multipotency connect 192 acquisition modules.
Determine that the parameter of influence node voltage minimum value is the individual of acquisition module according to acquisition module node voltage formula
Number n, conducting electric current Ix, order wire equivalent resistance Rc；From formula 2,Adopt
Collect number n, the conducting electric current i of modulex, order wire equivalent resistance RcThree parameters influence the node voltage minimum value of acquisition module.
By the network construction form for adjusting above three parameter determination Monitored System of Industrial Storage Cell.On in Monitored System of Industrial Storage Cell
State three parameters to be adjusted, obtaining the node voltage of smaller acquisition module then can in systems access more collection moulds
Block, and being capable of proper communication.Main method of adjustment is increase system boxcar, adjusting resistance values and changes more low-impedance
Order wire.Individually analyzed in terms of three separately below.
A, increase system boxcar, make Monitored System of Industrial Storage Cell with multilink circuit form networking.
Increase system boxcar, makes monitoring system with multilink circuit form networking, is increased by increasing system boxcar
Influence system communicate minimum node voltage acquisition module number n.System group network joint number at 192 or so, prior art
In reached the acquisition module joint number maximum of Monitored System of Industrial Storage Cell, limit the further of Monitored System of Industrial Storage Cell performance
Lifting.Can increase the quantity of Monitored System of Industrial Storage Cell acquisition module, system conversion by increasing system boxcar in the system
The actual connection separation of box is drawn by surveying.
B, regulation first resistor, the resistance value of 3rd resistor, calculating two resistance value combinations carries out group-net communication
The quantity of maximum acquisition module, the relation between the quantity and resistance value of the maximum acquisition module of analysis；
When the level on RX_O order wires is low level,Increase the resistance of first resistor R37, then ix
Reduce, increase the communication allowance of system.It is V if accessing the saturation conduction voltage of acquisition module node voltage as little as Q6a=
2.5V.If system remains to proper communication, calculated with maximum communication acquisition module n >=192, when a≤96, can be with by formula 2
Obtain ix≤11.24mA.11.24mA is to flow through maximum current in each module in group network system,
Obtain R37 >=0.97K Ω.Take the current transfer ratio CTR=135%, i of optocouplerx× CTR=ic, and VDD-ic× R36=1.2,
So as to obtain 3rd resistor R36 >=0.25K Ω.With reference to current system communication baud rate 9600bps analyses, the cycle is T=104 μ
S, only meets t when rising time, trailing edge timer≤ 52 μ s and tfThe system could normally recognize high level during≤52 μ s,
By the optocoupler current-limiting resistance of Fig. 5 and rising edge trailing edge time graph, draw 3rd resistor R36 and meanwhile should meet R36≤
3KΩ.Now, according to VDD-ic× R36 >=0, derives ic>=1.67mA, by the electricity for consulting optocoupler in PS2701 databooks
Streaming is obtained than curve map, CTR=90%ByDerive R37≤5.89K Ω.
Regulation ixSize should cause that first resistor R37 and first resistor R36 meet
Common fixed carbon resister resistance has 1K Ω, 1.2K Ω, 1.4K Ω, 1.5K Ω, 1.6K Ω, 1.8K in the range of 1K Ω -6.5K Ω
Ω、2KΩ、2.2KΩ、2.4KΩ、2.7KΩ、3KΩ、3.2KΩ、3.3KΩ、3.6KΩ、3.9KΩ、4.3KΩ、4.7KΩ、
5.1KΩ、5.6KΩ。
First resistor R37 takes respectively：2.2KΩ、2.4KΩ、2.7KΩ、3KΩ、3.2KΩ、3.3KΩ、3.6KΩ、3.9K
Ω、4.3KΩ、4.7KΩ、5.1KΩ、5.6KΩ。
3rd resistor R36 takes respectively：1KΩ、1.2KΩ、1.4KΩ、1.5KΩ、1.6KΩ、1.8KΩ、2KΩ、2.2K
Ω、2.4KΩ、2.7KΩ、3KΩ；
According to relational expression in system,According to choose first resistor R37,
The various combination of 3rd resistor R36 resistances, calculate can group-net communication acquisition module joint number maximum.Such as Fig. 6 institutes
Show, be Monitored System of Industrial Storage Cell resistance parameter combinatory analysis table in the present invention, according to form, theory calculates two limits of simple adjustment
Leakage resistance parameter is possible to realize 300 module together networkings.
The impedance of c, regulation order wire, the relation between the impedance of the quantity and order wire of the maximum acquisition module of analysis.
Prior art selects 28AWG, the order wire of 400mm, and the impedance of the order wire is Rc=0.1816 Ω；And 26AWG,
The impedance of the order wire of 400mm is Rc=0.1024 Ω.Equally, the relational expression in system, as shown in Figure 7, it can be deduced that
Monitored System of Industrial Storage Cell order wire impedance parameter analytical table.It can be seen from the analytical table, the impedance for reducing order wire can increase
The quantity of maximum acquisition module, the networking performance of lifting system.
Step 12 is specifically included：Calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of each network construction form.
When Monitored System of Industrial Storage Cell uses intelligent gateway network construction form, system maximum data acquisition module networking joint number is limited to node
Minimum voltage, can pass through
Relational expression calculates the maximum of system group network acquisition module joint number.
For example：Using a gateway module, R36=1K Ω, R37=2.2K Ω, order wire is 28AWG order wires.According to
The minimum voltage V of optocoupler primary side secondary relationship analysis egressa=8.37V, accumulator monitoring system can be calculated according to above formula
The maximum of the system group network acquisition module joint number of system is 192.
When Monitored System of Industrial Storage Cell from intelligent gateway plus system boxcar network construction form when, system is most
Big data acquisition module networking joint number is limited to system performance loop total current.When system group network carries out automatic addressing, loop is total
Electric current is Ia=50% × ix×n；During system proper communication, loop total current Ib=50% × Ia.DrawTheoretical
The maximum of system group network joint number can be calculated by the formula.
The output current I=4.2A specifications of 12V Switching Power Supplies used on gateway module, take 70% current margin I1=
4.2*70%=2.94A.RJ11 terminal maximum carrying capacities I2=1.5A used by gateway module.The maximum carrying capacity of order wire can
With by inquiry《AWG current-carrying capacity inquiry tables》Understand, the maximum carrying capacity of 28AWG order wires is I3=0.362A, 26AWG communications
The maximum carrying capacity of line is I4=0.577A, and the maximum carrying capacity of 24AWG order wires is I5=0.921A.Loop total current IbChoosing
The current value of minimum in system is taken, due to I1>I2>I5>I4>I3, in the system current-carrying capacity of order wire be whole system in most
Low current value, therefore, system group network joint number maximum is limited to selected order wire model.
For example, adding a network construction form for system boxcar, R36=1K Ω, R37=using an intelligent gateway module
2.2K Ω, order wire is 28AWG order wires.Now, Ib=I3=0.362A,
Then n=292.
It is above-mentioned to be merely given as two examples, the network construction form of above two Monitored System of Industrial Storage Cell is not limited to, can
The network construction form of Monitored System of Industrial Storage Cell is carried out with the various combination according to system boxcar, resistance and order wire type
It is determined that.
Step S2 is specifically included：Monitored System of Industrial Storage Cell to above-mentioned different network construction forms is tested, and obtains test
Acquisition module joint number maximum.Only tested by the Monitored System of Industrial Storage Cell of three kinds of network construction forms below：
The first situation, the 300 section accumulator internal resistance system boxcar of gateway module+1 of acquisition module+1+28AWG lead to
Letter line+R36 (1K Ω)+R37 (2.2K Ω)；
Second situation, 252+1 gateway module+28AWG order wire+R36 (2.2K of section accumulator internal resistance acquisition module
Ω)+R37(3.3KΩ)；
The third situation, 251 section accumulator internal resistance acquisition module+1 gateway module+26AWG order wire+R36 (1K Ω)+
R37(2.2KΩ)；
The Monitored System of Industrial Storage Cell of the various network construction forms to choosing is analyzed：
Actual test is carried out to the Monitored System of Industrial Storage Cell network construction form that the first situation is chosen.Increase system in systems
Boxcar, specific attachment structure are as shown in figure 8, Fig. 8 is Monitored System of Industrial Storage Cell network construction form of the invention.It is by increasing
System boxcar increased the number n of the acquisition module of the influence system minimum node voltage of communication.Acquisition module to the system enters
Row automatic addressing, battery calibration software successfully completes the addressing of 300 internal resistance acquisition modules and 1 current acquisition module,
Communicated on computer room bodyguard normal.Test instruction is sent to the acquisition module in system, gathered data can be normally obtained.System is carried out
During data acquisition, grasping system the 37th, 76, No. 115 RX_O, RXD, VBUS, PS2701+ of acquisition modules are distinguished by oscillograph
Oscillogram.When three nodes enter row data communication in theory, minimum node voltage is respectively V37 reasons=10.1V, V76 reasons=9.4V,
V115 reasons=10.1V.
On No. 37 acquisition module, when low level is received, the minimum test voltage of node is V37 survey=8.8V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1V, and PS2701- points minimum voltage is 0V, shows optical coupler
Part secondary is in magnifying state.RXD minimum voltages are 240mV, and communication is in normal condition.
On No. 76 acquisition module, when low level is received, the minimum test voltage of node is V76 survey=7.8V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows optocoupler
Device secondary is in magnifying state.RXD minimum voltages are 560mV, and communication is in normal condition.
On No. 115 acquisition module, when low level is received, the minimum test voltage of node is V115 survey=9V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows optocoupler
Device secondary is in magnifying state.RXD minimum voltages are 160mV, and communication is in normal condition.
Monitored System of Industrial Storage Cell network construction form to second situation selection carries out actual test.The network construction form with it is existing
Technology is identical, simply have adjusted the resistance of R36, R37 of accumulator internal resistance acquisition module, the collection mould that the system can be accessed
Block joint number standard theory maximum is 258.Take R36=2.2K Ω, R37=3.3K Ω.According to carrying out actual networking shown in Fig. 9
Test, Fig. 9 is Monitored System of Industrial Storage Cell network construction form two of the invention.Automatic addressing, battery are carried out to system acquisition module
Calibration software successfully completes 252 internal resistance acquisition module addressings, communicates normal on computer room bodyguard.To the acquisition module in system
Test instruction is sent, gathered data can be normally obtained.When system carries out data acquisition, by oscillograph grasping system the 5th,
126th, No. 248 RX_O, RXD, VBUS, PS2701+ oscillogram of acquisition module.Three nodes enter row data communication in theory
When, minimum node voltage is respectively V5 reasons=11.628V, V126 reasons=7.2V, V248 reasons=11.628V.
On No. 5 acquisition module, when low level is received, the minimum test voltage of node is V5 survey=11.8V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows optocoupler
Device secondary is in magnifying state.RXD minimum voltages are 160mV, and communication is in normal condition.
On No. 126 acquisition module, when low level is received, the minimum test voltage of node is V126 survey=5.8V, with
Calculated value is approached.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows light
Coupling device secondary is in magnifying state.RXD minimum voltages are 1.76V, and 1.76V is uncertain in one between 0.8V-2V
State, communication is in normal condition when RXD minimum voltages are 1.76V in test.
On No. 248 acquisition module, when low level is received, the minimum test voltage of node is V248 survey=11V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows optocoupler
Device secondary is in magnifying state.RXD minimum voltages are 160mV, and communication is in normal condition.
Actual test is carried out to the Monitored System of Industrial Storage Cell network construction form that the third situation is chosen.The network construction form with it is existing
Technology is identical, and the resistance of R36, R37 of accumulator internal resistance acquisition module keeps constant, and system communications line is changed into 26AWG,
The acquisition module joint number standard theory maximum that the system can be accessed is 256.Tested according to actual networking is carried out shown in Fig. 9,
Fig. 9 is Monitored System of Industrial Storage Cell network construction form two of the invention.Automatic addressing is carried out to system acquisition module, battery calibration is soft
Part successfully completes 251 internal resistance acquisition module addressings, communicates normal on computer room bodyguard.Acquisition module in system is sent and is surveyed
Examination instruction, can normally obtain gathered data.When system carries out data acquisition, by oscillograph grasping system the 63rd, the 126th,
No. 189 RX_O, RXD, VBUS, PS2701+ oscillograms of acquisition module.It is minimum when three nodes enter row data communication in theory
Node voltage is respectively V63 reasons=8.98V, V126 reasons=7.97V, V189 reasons=8.98V.
On No. 63 acquisition module, when low level is received, the minimum test voltage of node is V63 survey=8.4V, with reason
It is close by calculated value.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows optocoupler
Device secondary is in magnifying state.RXD minimum voltages are 240mV, and communication is in normal condition.
On No. 126 acquisition module, when low level is received, the minimum test voltage of node is V126 survey=7.2V, with
Calculated value is approached.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows light
Coupling device secondary is in magnifying state.RXD minimum voltages are 1V, and communication is in normal condition.
On No. 189 acquisition module, when low level is received, the minimum test voltage of node is V189 survey=8.4V, with
Calculated value is approached.The PS2701+ points minimum voltage of optocoupler is 1.2V, and PS2701- points minimum voltage is 0V, shows light
Coupling device secondary is in magnifying state.RXD minimum voltages are 240mV, and communication is in normal condition.
The Monitored System of Industrial Storage Cell of examples detailed above network construction form can realize normal communication, simply be listed in the present invention
Partial example, is not limited to the Monitored System of Industrial Storage Cell of above-mentioned network construction form.
The acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form is adopted with test
Collection module joint number maximum is compared；When the acquisition module joint number maximum for calculating is maximum with the acquisition module joint number of test
When the error of value is within default error threshold, networking joint number searches the minimum collection mould for calculating of difference therewith according to demand
The network construction form of the Monitored System of Industrial Storage Cell corresponding to block joint number maximum.
Step S3 is specifically included：The acquisition module joint number that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form is most
Big value is compared with the acquisition module joint number maximum of test.By the networking shape of the Monitored System of Industrial Storage Cell of various various combinations
The maximum of the theoretical calculation of formula and the system group network acquisition module joint number of actual test is summarized analysis.As shown in Figure 10,
It is the theoretical contrast form with actual measurement of maximum of the system group network acquisition module joint number that the present invention is provided.
Five kinds of Monitored System of Industrial Storage Cell of network construction form are carried out test checking in form.
First network construction form is：1 gateway module+28AWG order wires+R36 (1K Ω)+R37 (2.2K Ω).What is calculated adopts
Collection module joint number maximum is 192；The acquisition module joint number maximum of test is 187；Both errors are 2.6%.
Second network construction form is：1 gateway module+28AWG order wires+R36 (2.2K Ω)+R37 (3.3K Ω).Calculate
Acquisition module joint number maximum is 258；The acquisition module joint number maximum of test is 252；Both errors are 2.3%.
3rd network construction form is：+ 1 system interconnecting device+28AWG order wires+R36 (1K Ω)+R37 of 1 gateway module
(2.2KΩ).The acquisition module joint number maximum of calculating is 292；The acquisition module joint number maximum of test is 300；Both errors
It is 2.7%.
4th network construction form is：1 gateway module+26AWG order wires+R36 (1K Ω)+R37 (2.2K Ω).What is calculated adopts
Collection module joint number maximum is 256；The acquisition module joint number maximum of test is 251；Both errors are 2.0%.
5th network construction form is：1 gateway module+26AWG order wires+R36 (2.2K Ω)+R37 (3.3K Ω).Calculate
Acquisition module joint number maximum is 345；The acquisition module joint number maximum of test is 345；Both errors are 0.
The acquisition module joint number maximum of default calculating is with the error threshold of acquisition module joint number maximum of test
3%.By above-mentioned comparative analysis, very small difference is only existed between the system maximum networking joint number of theoretical calculation and actual measurement,
Understand that both errors are less than 3% according to contrast form, within default error threshold.
Step S4 is specifically included：When the acquisition module joint number maximum for calculating and the acquisition module joint number maximum of test
When error is within default error threshold, networking joint number searches the minimum acquisition module section for calculating of difference therewith according to demand
The network construction form of the Monitored System of Industrial Storage Cell corresponding to number maximum.Therefore, the acquisition module joint number maximum that will can be calculated is made
To design the theoretical foundation of the Monitored System of Industrial Storage Cell of new network construction form.
Analysis of Networking method based on above-mentioned Monitored System of Industrial Storage Cell, present invention also offers the group of Monitored System of Industrial Storage Cell
Net analysis system.As shown in figure 11, be Monitored System of Industrial Storage Cell of the invention Analysis of Networking system structured flowchart.The system
System includes：
Maximum value calculation module 100, for acquisition module section in the Monitored System of Industrial Storage Cell for calculating different network construction forms
Number maximum；Maximum test module 200, tests for the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms, obtains
Take the acquisition module joint number maximum of test；Comparison module 300, for the Monitored System of Industrial Storage Cell of same network construction form to be fallen into a trap
The acquisition module joint number maximum for calculating is compared with the acquisition module joint number maximum of test；Network construction form searching modul
400, for being missed default with the error of the acquisition module joint number maximum of test when the acquisition module joint number maximum for calculating
When within difference limen value, networking joint number searches electric power storage therewith corresponding to the minimum acquisition module joint number maximum of difference according to demand
The network construction form of pond monitoring system.
The maximum value calculation module 100 is specifically included：
Network construction form chooses unit, the Monitored System of Industrial Storage Cell for choosing several network construction forms；
Computing unit, for acquisition module joint number maximum in the Monitored System of Industrial Storage Cell for calculating each network construction form.
The network construction form is chosen unit and is specifically included：
Analysis subelement, for calculating acquisition module node voltage according to the Monitored System of Industrial Storage Cell of existing network construction form
Formula, and analyze the acquisition module joint number maximum of acquisition module node voltage minimum value influence Monitored System of Industrial Storage Cell；
Parameter determination subelement, for determining influence node voltage minimum value according to acquisition module node voltage formula
Parameter is number n, the conducting electric current I of acquisition modulex, order wire equivalent resistance Rc；
Subelement is chosen, the network construction form for choosing Monitored System of Industrial Storage Cell by adjusting above three parameter.
In sum, the invention provides the Analysis of Networking method and Analysis of Networking system of Monitored System of Industrial Storage Cell, the party
When the acquisition module joint number maximum and the error range of the acquisition module joint number maximum of test for calculating are in default model in method
When within enclosing, networking joint number searches battery prison therewith corresponding to the minimum acquisition module joint number maximum of difference according to demand
The network construction form of examining system, accumulator monitoring system of the acquisition module joint number maximum that will be calculated as the new network construction form of design
The theoretical foundation of system, without being tested checking in large quantities, reduces Networking Design cost.
Certainly, one of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method,
Can be by computer program to instruct related hardware (such as processor, controller etc.) to complete, described program can be stored
In the storage medium of an embodied on computer readable, the program may include such as the flow of above-mentioned each method embodiment upon execution.Its
Described in storage medium can be for memory, magnetic disc, CD etc..
It should be appreciated that application of the invention is not limited to above-mentioned citing, and for those of ordinary skills, can
To be improved according to the above description or converted, for example, all these modifications and variations should all belong to right appended by the present invention wanting
The protection domain asked.
Claims (10)
1. a kind of Analysis of Networking method of ice storing time system, it is characterised in that methods described includes：
Step A, calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of different network construction forms；
Step B, the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms are tested, and obtain the acquisition module joint number of test most
Big value；
Step C, the acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form and test
Acquisition module joint number maximum is compared；
Step D, when the error of the acquisition module joint number maximum for calculating and the acquisition module joint number maximum of test is in default mistake
When within difference limen value, the minimum acquisition module joint number maximum for the calculating institute of difference is right therewith for the lookup of networking joint number according to demand
The network construction form of the Monitored System of Industrial Storage Cell answered.
2. the Analysis of Networking method of ice storing time system according to claim 1, it is characterised in that the step A tools
Body includes：
A1, the Monitored System of Industrial Storage Cell for choosing several network construction forms；
A2, calculate acquisition module joint number maximum in the Monitored System of Industrial Storage Cell of each network construction form.
3. the Analysis of Networking method of Monitored System of Industrial Storage Cell according to claim 1, it is characterised in that the step A1 tools
Body includes：
A11, acquisition module node voltage formula is calculated according to the Monitored System of Industrial Storage Cell of existing network construction form, and analyze and adopt
Collection Module nodes voltage minimum influences the acquisition module joint number maximum of Monitored System of Industrial Storage Cell；
A12, according to acquisition module node voltage formula determine influence node voltage minimum value parameter for acquisition module
Number n, conducting electric current Ix, order wire equivalent resistance Rc；
A13, the network construction form by adjusting above three parameter determination Monitored System of Industrial Storage Cell.
4. the Analysis of Networking method of Monitored System of Industrial Storage Cell according to claim 3, it is characterised in that by increasing system
Boxcar, regulation first resistor, the resistance of 3rd resistor, adjusts the impedance of order wire to adjust the parameter.
5. the Analysis of Networking method of ice storing time system according to claim 2, it is characterised in that when the battery
When monitoring system uses intelligent gateway network construction form, system acquisition module joint number maximum is limited to node minimum voltage；Work as institute
State Monitored System of Industrial Storage Cell from intelligent gateway plus system boxcar network construction form when, system acquisition module section
Number maximum is limited to system performance loop total current.
6. the Analysis of Networking method of ice storing time system according to claim 5, it is characterised in that when the battery
Monitoring system from intelligent gateway plus system boxcar network construction form when, the number of system acquisition module isLoop total current IbIt is the current-carrying capacity of order wire in system, system acquisition module joint number maximum is limited to selected
Order wire model.
7. the Analysis of Networking method of ice storing time system according to claim 1, it is characterised in that the collection mould of calculating
Block joint number maximum is being preset within error threshold with the error of the acquisition module joint number maximum of test, and default error threshold is
3%.
8. a kind of Analysis of Networking system of ice storing time system, it is characterised in that the system includes：
Maximum value calculation module, it is maximum for acquisition module joint number in the Monitored System of Industrial Storage Cell for calculating different network construction forms
Value；
Maximum test module, tests for the Monitored System of Industrial Storage Cell to above-mentioned different network construction forms, obtains test
Acquisition module joint number maximum；
Comparison module, for the acquisition module joint number maximum that will be calculated in the Monitored System of Industrial Storage Cell of same network construction form with
The acquisition module joint number maximum of test is compared；
Network construction form searching modul, for when the acquisition module joint number maximum for calculating and the acquisition module joint number maximum of test
Error range within preset range when, to search the minimum acquisition module joint number of difference therewith maximum for networking joint number according to demand
The network construction form of the corresponding Monitored System of Industrial Storage Cell of value.
9. the Analysis of Networking system of ice storing time system according to claim 8, it is characterised in that the maximum meter
Module is calculated to specifically include：
Network construction form chooses unit, the Monitored System of Industrial Storage Cell for choosing several network construction forms；
Computing unit, for acquisition module joint number maximum in the Monitored System of Industrial Storage Cell for calculating each network construction form.
10. the Analysis of Networking system of Monitored System of Industrial Storage Cell according to claim 9, it is characterised in that the networking shape
Formula is chosen unit and is specifically included：
Analysis subelement, it is public for calculating acquisition module node voltage according to the Monitored System of Industrial Storage Cell of existing network construction form
Formula, and analyze the acquisition module joint number maximum of acquisition module node voltage minimum value influence Monitored System of Industrial Storage Cell；
Parameter determination subelement, the parameter for determining influence node voltage minimum value according to acquisition module node voltage formula
Number n, conducting electric current I for acquisition modulex, order wire equivalent resistance Rc；
Subelement is chosen, the network construction form for choosing Monitored System of Industrial Storage Cell by adjusting above three parameter.
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