STMIK Jakarta Journal Online
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INFORMATION CONTROL DESIGN HOUSE PROTOTYPE COMPUTER BASED IBM PC
No full textComputer systems today are not only used as a tool to assist their daily work, but alsoused as entertainment and advice on development control is currently used as a tool.That's why the house lights were used computers to control them. As in theconventional switch, the computer can control the lights manually through a pressurebutton. Besides computers have advantages in controlling the lights are programmed.So users need not bother to go to each room to turn on or turn off the lights in thebuilding with plenty of space. Simply through one central place, everything has beenchecked. So we use a relay that will mediate between the computer with a series oflights. So that each can operate can be mutually affected the voltage differencebetween the two
MEDIA TRANSMISSION IN LOCAL AREA NETWORK DI PT. TELKOM KANDATEL EAST JAKARTA
No full textLAN network in the East Jakarta Kandatel to send its data he uses communication techniques broandband ethernet, using CSMA / CD (Carrier Sense Multiple Access / Collision Detection with) and the topology used is the bus topology used in the building. While the tree topology t o connect between buildings OPMC, Datel and Sentel through optical fiber media. While for the LAN network in a single building using UTP cable. In Kandatel to connect between buildings with each other using fiber optic media, it is because this type of cab le is not easily disrupted by interference from outside. While for the LAN network in a building using UTP cable.
PROGRAMMABLE THE INTERFACE 8251A
No full textCommunication is the process of sending information from one place to another, howthe delivery of information have their own modes and methods. With the computerthe way of sending information is also adjusted to the principles and workings of thecomputer.But computers can not perform data transmission without a tool that can make it ableto carry out the process of data transfer. One of these tools is the IC is an IC 8251AUSART (Universal Synchronous / Asynchronous Receiver Transmitter) is IC that isused to implement the information delivery process using serial synchronous /asynchronous.The advantage of using this chip is its ability to be programmed (programmable) inaccordance with the procedures contained in IC programming this 8251A
SUBER IMPROVING CACHE MEMORY POWER
No full textMemory access time is the time interval between the start issuing a request to memory when the information is complete and transferred from the memory that is accessed. The same thing applies for an access operation that required additional time to remove words that have been written into the cache memory to the memory can be eliminated by applying the write through
CIRCUIT DESIGN HOUSE DOOR CONTROLLER INTERFACE USING PROGRAMMABLEPERIPHERAL (PPI)-BASED 8255 PERSONAL COMPUTER (PC)
No full textThe design of the door controller series is a tool that serves to open and close the doorby automatically, without having moved by human power with the desired degrees (inmultiples of 7.2). This tool is very useful especially in the Jakarta metropolitan arealike this because it can minimize the occurrence of theft in the home or the usualdifficulties encountered daily in the open or close the door of the house.This tool uses a stepper motor controlled by the controlling circuit (stepper motordriver). With PPI 8255 as a controller that can be programmed, these devices can beconnected to personal computers or PC so that its operation becomes very easy justby pressing one button on the menu of available option
X.25 PROTOCOL ON LOCAL AREA NETWORK SYSTEM NERWORK (LAN)
No full textNetwork Systems Local Area Network (LAN) is required in the local network system so that the Ministry of Industry Pusdata can use the same database, ease of getting information, developed with the increasing use of distributed processing will be terminal. The number of nodes can be added or subtracted withou t having to disrupt existing operations. The relationship that node, using the method CSMA / CD, where CSMA / CD can detect an incoming channel. In data communication systems, communication protocols determine the method of operation and system reliability .
AT 89S51 MICROCONTROLLER IMPLEMENTATION CASE STUDY WITH CALCULATIONS ONFREQUENCY TONES
No full textAT 89S51 microcontroller is a system that can combine the input and output digital signals that can be used for various purposes, especially in industrial. With AT 89S51 microcontroller devices using a system that could be restrained in a compact and reliable because AT 89S51 microcontroller has a privilege in terms of hardware.With these features is support for technological advances in digital control systems are very efficientand effective. AT 89S51 microcontroller system is the control center of the overall work of existing circuits.Among the advantages compared to the use of microprocessors and microcontrollers AT 89S51 is already there in the microcontroller RAM and an intermediary of I/O and thus no longer supporting the addition of an intermediary I/O again, in addition to applying a device would be much simpler.For data processing in the system AT 89S51 microcontroller using assembly language
SYSTEM DESIGN OF TRAFFIC LIGHTS AT SETTING TWO INTERSECTIONS FOUR PROCEDURES WITH THE INTERRUPTION TECHNIQUE
No full textconducting its activities, many researchers tried to apply with other electronic devicesmengapliasikannya with other electronic devices are not digital. Computers can bewidely used or common regulatory tools such as traffic lights, much used at thejunction of main roads or highways whose main function is to avoid congestion andtraffic accidents. Generally cause traffic jams that often occur due to traffic accidents,not vice versa. But in recent years, along with rapid economic development, thenmost of the roads in big cities in Indonesia are not able to accommodate passingvehicles, causing traffic jams. Accidents that may result in loss of life whencongestion occurs on the very small probability. But not so when the jam is located atthe intersection between two intersections, and there are railway crossing which isroad transport which have a higher priority of other land transport. Therefore it needsto make extra functions on the traffic control devices already exist. These additionalfunctions can be derived from the input signal-post guardhouse railway crossingwhen the signal is coming, then the traffic light on the jammed roads covering therailroads will be conditioned green. The duration of the green conditions can betailored to the needs, at least not block traffic to rail, so trains can pass safely. Thisalternative is at least able to reduce traffic accidents that cause loss of material andthe soul group should train with other ground transportation
COUNTER DIGITAL SYSTEM USING MICRO CONTROLLER (MCS) -8031
No full textMicrocontroller-8031 is a minimum system that can combine the input and output adigital signal that can be used for the control of an application tool, primarily locatedin industrial. By using an 8031 microcontroller-system device can be controlledsimultaneously / together as well as reliable, because the microcontroller-8031 has aprivilege in terms of hardware.With its features, the microcontroller-8031 can be very useful for the development oftechnology, especially in digital control systems are very efficient and effective.Microcontroller system is a control center of the overall work system.Microcontroller for digital circuits are used as a store counter or control commandsfrom the calculations that will be shown at 7-segment display.Among the advantages to use microcontroller-8031 in this series is due to thepresence of all devices are required, so no longer need a computer and interface, sono longer need a computer and an interface so that the circuit becomes moreeconomical and efficient. whereas in data processing within the systemmicrocontroller, 8031 assembly language is used
DIGITAL EQUIPMENT EFFECTIVE STRESS MEASURE
No full textIn this thesis, we presented the design of measuring devices, which may be used to measure the effective voltage value of an electrical signal.operation of this measuring instrument used for measuring the effective price of the wavesthat shaped not sequentially, either periodically or non periodic.Designrestricted to the use of measurement of stress waves within the audio frequency region.The main circuit consists of voltage sensor, which at the same time as devidervoltage, the effective price of a modifier of voltage (current) direction, and the last is a digital voltmeter. The output from the sensor circuit signal voltage is still a form similar to the original signal is measured, but the amplitude is different, tailored to local measurements. Modifiers effective price will count valueto floweffective unidirectional signal output from the sensor circuit. The output of this converter circuit becomes the input of digital voltmeter, which is then displayed by the viewer seven sections (seven segment)