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Battery charge / discharge control system design and test


229 * for the 03H, 8031 ​​operating in Mode 1 communications port system principle block diagram of Figure 1 Fig1Sy ~ emprincipleclqart (3) to send and receive using query mode, and send the correct answer or not to inform each other and receive the correct or not, also provides PC- for the PC, 8013 for the next crew, the next crew of any action by the host computer communication start control. (4) When a transmission error, the tips can be re-issued. Can be drawn from the agreement and 8031 ​​as PC, the communication initialization block: C (with TurboC Language): outportb (ox3fl3, ox80); outportb (ox3f8.OXOC): outportb (ox3N.oxoo): outportb (ox3f13, oxo3); outportl0 (ox3fc,[link widoczny dla zalogowanych], oxo3); OUtlX ~ rtl0 (ox3f9, oxoo); 8031 ​​(MASal a 51 assembly language): MOVTMOD. # 21H; MOVTL1. # OFDH; MOVTHl, # OFDH; SETBTR1: MOVSCON, # 50H3.2PC Computer Software Design PC machine function block diagram shown in Figure 2. 3.38031 8031 ​​software design for the next crew, so its action by the host computer PC-controlled. 8031 in the main program modules are: ① TEST: Test and PC communication between; ② SETI: charge / discharge current settings; ③ START: start the charge / discharge: @ BREAK: suspension of charge / discharge; ⑤ SETTl: acquisition time interval; ⑥ SETT2: Set end Time: ⑦ SETT3: save time; @ CHARGE: Charge; @ DISCHARGE: Discharge: ⑩ IVIT: initialize the system; @ INFORM: report to the PV measurement data; @ SEND: Send a character PC; 0PEcE: Receive ten characters; @ CAD : External interrupt service routine; @ CLEAR: Please display; 0MYINTO: timer () interrupt service routine. 4 Conclusion The system is mainly used for laboratory research battery, the current system has been achieved. Reached the intended target. System main features are: ① direct use 220V power supply, thus ensuring the security of the system; ② system stability and high accuracy (error 3mV less); ③ system device small and simple; ④ user interface clear, beautiful, user convenient and simple. 230, No. l2 Jilin Forestry College Volume 2 Functional block diagram Fig2FunctionmodelchartAControllingandTestingSystemofCharge/DischargeforSecondaryBatteriesSunYuQiuJiuli (ComputerDepartmentofHarbinCollege, Harbin.150040) (AnesthesiaDepartmentofJilin, ~ / [edicaiCollege) LiuYu'an (ForestResourceDepartmentofJiiinForestryUniversity) AbstractThissystemisasetofequipmentdevelopedforcontrollingandtestingthenew-stylesecondaryba. tteries. ItadoptsthecommunicationbetweenPCandprintscollecteddatasformSCM. MorevertheSCMhasthefunctionoftime-saved. Inshort, thissystemistheeffectiveinstrumentusedincontrollingandtastingtheperformancesofthenew-stylesecondarybattery. KeywordsChargeandDischarge, ConstantCurrent, controllingandtastingsystem