Design and Implementation of Supermarket Personnel Management System Based On Java

Zheng, Shiyong; De-ze, Qin; Zhu, Qiang; Li, Biqing

doi:10.2991/icemct-15.2015.362

Cited by 36 publications

(11 citation statements)

References 1 publication

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“…In closing door, when someone approaches the scope of about 1m from the door, the motor stops rotating reversely to immediately begin to rotate positively, i.e. the automatic door stops closing state and is re-opened [13,14]. When someone stands within 1m from the door, the buzzer sounds and indicator flashes to prompt not hindering others from passing this door; after people leave, the buzzer stops sounding and indicator becomes off.…”

Section: Debugging and Resultsmentioning

confidence: 99%

The Design of the Automatic Door Control System

Li¹,

Li²,

Tan³

2017

Intelligent Computing and Information Engineering (ICIE)

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This design is based on single-chip microcomputer for auto-door control system, mainly by the master and the human infrared induction parts, motor parts, clock, display segments consists of five parts. PIR sensor acquisition by being able to identify the human body the human body signals, then sends the signal to the AT89C52 MCU processing. After SCM process, on the one hand the motor driver IC L289 control trigger signals, thereby by the motor driver IC motor control forward and reverse, and when he opens the door, reverse the door when closed, so as to realize the opposite control; Alarm devices, display control on the other hand, when an alarm signal is triggered, sound and light alarm, and display of date and time on the display in order to achieve functional purpose. OVERALL DESIGNIf someone approaches a door, the infrared induction part will read body signal and transmit it to master control part. The SCM issues instruction to motor driving part according to signal and the motor driving part drives motor to turn, thereby opening and closing the door. When someone stands at the door for long, the master control part communicates instruction to alarm part to alarm to prevent hindering other people from going in and out [1][2][3]. In the meanwhile, the clock part, display part and SCM constitute a time system to display current date, thus multi-functionalization is realized.The SCM often uses 51 series, such as AT89C52 SCM. The infrared induction part can select distributed circuit dominated by BISS0001 chip, or use body infrared integration module [4]. The display part usually uses Nixie tube, LCD 12864 or 1602. The clock part adopts chip DS1302. Alarm part often uses buzzer and LED light, etc. HARDWARE DESIGNThe system design mainly comprises SCM minimal system and sub-circuit for each part. The sub-circuits are divided into infrared induction, motor drive, alarm, clock, key, and power supply. While SCM minimal system is the most crucial part of whole hardware. The sub-circuit parts are connected to different I/O ports of minimal system, wherein the infrared induction sub-circuit and key sub-circuit are connected to input port of minimal system [5]. The alarm sub-circuit and drive sub-circuit are connected to the output port of minimal system. The rest parts are connected to corresponding ports according to properties. SCM uses programming instructions to control them.

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Section: Debugging and Resultsmentioning

confidence: 99%

The Design of the Automatic Door Control System

Li¹,

Li²,

Tan³

2017

Intelligent Computing and Information Engineering (ICIE)

Self Cite

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“…Following is an outline of MAX1898. Using MAX1898 and exterior transistor PNP or PMOS can constitute charger, now the users can charge with constant current/constant voltage accurately [11][12][13][14]. Usually the precision of battery voltage is as high as about±0.75%.…”

Section: Charge Control Circuitmentioning

confidence: 99%

The Design of Lithium Battery Charging Circuit

Li¹,

Zhao²,

Li³

2017

Intelligent Computing and Information Engineering (ICIE)

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This page proposed a Lithium battery charging circuit which used MCU AT89S52 as the core, consists of voltage regulator module, power supply switch module, lithium battery modules and prompt modules. It can be achieved precharge, fast charger, slow charger for the lithium battery charger; charging process presentation; disconnect the power after the battery is full automatically. The circuit has very high use value with the advantages of simple design. OVERALL DESIGN Principle of operationMost of lithium ion battery used now are of graphite crystal for cathode and lithium cobalt oxide for anode [1,2]. Now take this battery for example to describe the basic operating principle of lithium ion battery: Graphite crystal and lithium cobalt oxide all have lamellar structure, which allows lithium ion to pass in and out, while irreversible conversion will not occur to material structure [3][4][5].When charging battery, the lithium atoms in anode are ionized into lithium ions and electrons. The lithium ions that get input energy from exterior are moved from anode to cathode in electrolyte. The moving lithium ions and electrons bond lithium atoms on cathode, and the reformed lithium atoms are inserted into lamellar structure of graphite in cathode. Charging temperature: Usually, the charging temperature of lithium ion battery is limited to be 0℃~45℃. Discharging temperature: Usually, the discharging temperature of lithium ion battery is limited to be -20℃~65℃.Data of cycle life: greater than 1000 times when discharging depth is 10%; greater than 200 times when discharging depth is 100%. Storage characteristics: the capacity conservation rate of fully charged lithium ion battery conserved for about 25 days at ordinary temperature is averagely 96%, and restoration ratio is above 99%. Charging method of lithium batteryConstant-current charge: The AC supply voltage of charger generally fluctuates, entailing to use a DC constant current source (charger) when charging [6]. Constant-current charge can guarantee higher charge efficiency of battery, and enables users to decide whether to stop charging according to charging time conveniently, change quantity of batteries into the bargain. Quasi constant-current chargeThe circuit of quasi constant-current charge is as shown in figure 5. This circuit connects a potentiometer between DC power supply and battery in series to increase internal resistance of circuit to generate constant current [7]. The ohmic value used is adjusted according to current in later period of charging to make current not exceed allowable value of battery. As it has simple structure and low cost, this charge circuit is extensively used in charger circuit.

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“…After careful examination of the line, we have not found a problem. When using a multi-meter to detect the relay, we found the problem in the relay [13][14][15][16]. This is the main reason why I use this model relay.…”

Section: Heating Rod Is Not Normally Heating the Liquidmentioning

confidence: 99%

Design Temperature and Liquid Level Control System

Li¹,

Li²,

Wei³

2017

Intelligent Computing and Information Engineering (ICIE)

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Along long to the continuance is developing of science and technologies for this level to is people's daily is lives keeping improved, so many smart devices location appear on people's daily lives, and this temperature is OK, and liquid is leveled controlled is system design for. An important is part to the design do this power oversupply, temperature sensor DS18b20 models, Ultrasonic sensors, LCD1602 model HC-SR04 models of LCD monitors, HK3FF-DC5V-SHG type of relay, heating rods, buzzer, pumps and STC89C52 model of driver ICs. Temperature and liquid very bit control is system designed achieved to feature are to many, respectively has to a contain within liquidizer for the temperature and liquid are bit for heighten achieving real-time to monitored.

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Design and Implementation of Supermarket Personnel Management System Based On Java

Cited by 36 publications

References 1 publication

The Design of the Automatic Door Control System

The Design of the Automatic Door Control System

The Design of Lithium Battery Charging Circuit

Design Temperature and Liquid Level Control System

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