Kabupaten Pangandaran merupakan salah satu Kabupaten yang berada di Provinsi Jawa Barat dengan Ibu Kota Kabupaten yang terletak di Kecamatan Parigi. Kabupaten Pangandaran dengan luas wilayah keseluruhan sebesar + 1.010 km2, dibentuk berdasarkan Undang-Undang Nomor 21 Tahun 2012 tentang Pembentukan Kabupaten Pangandaran di Provinsi Jawa Barat. Kegiatan pengabdian masyarakat yang dilaksanakan meliputi sosialisasi mengenai sistem informasi kebencanaan dalam hal ini berkaitan dengan bencana Tsunami. Kegiatan sosialisasi meliputi pembukaan dan perkenalan dengan siswa/siswi SMP dan SMA Muhammadiyah Kabupaten Pangandaran yang menjadi sasaran kegiatan. Kemudian penyuluhan menganai sistem informasi kebencanaan yang berkaitan dengan bencana tsunami yaitu early warning system. Terakhir yaitu Sesi diskusi dan tanya jawab dengan peserta sosialisasi. Seluruh kegiatan tersebut diikuti dengan sangat antusias oleh para peserta.

Dampak dari seseorang mengakses internet adalah hal yang negatif dan bisa juga menjadi hal yang positif, namun hal tersebut bukanlah menjadi suatu hambatan masyarakat kita untuk maju dalam mengikuti perkembangan teknologi informasi. Untuk mengurangi dampak negative dari kegiatan penggunaan akses internet dibutuhkan sosialiasi berinternet secara sehat dan aman. Sosialisasi yang akan dilakukan di daerah kecamatan Cihideung terbilang tepat karena di daerah tersebut terdapat beberapa sekolah seperti SMA (SMA Plus Nurul Arif Salam), sekolah SMP (SMP Plus Nururl Arif Salam), dan Ishlahul Ummah Boarding School. Secara demografis tepat dikatakan bahwa daerah kecamatan Cihideung memiliki anak remaja berstatus pelajar yang cukup banyak dan menjadi perhatian penting. Berdasarkan situasi para remaja berstatus pelajar yang ada di daerah kecamatan Cihideung yang membutuhkan perhatian khusus dalam hal berinternet, maka disini ditawarkan solusi berupa “Sosialisasi Berinternet Sehat dan Aman”. Setelah dilakukan sosialisasi terlihat bahwa para remaja sangat antusisas dengan materi konten situs ataupun media sosial yang sehat dan positif sehingga diharapkan bisa diadakan lagi untuk di waktu mendatang.

In the oil production distribution network, there are three main nodes, namely the supply node, the transshipment node, and the demand node. The pattern of distribution of oil production from the supply node to the demand node is very diverse and can affect the costs to be incurred. Therefore, a company must be able to determine the right distribution pattern, so that the costs incurred are optimal. This paper intends to conduct a study of how to determine and calculate the distribution patterns and the minimum total costs incurred, using the primal-dual linear program method. Based on the results of the case analysis, it is known that the number of supply commodities will be the same as the number of demand commodities, but the distribution from each source does not necessarily have the same capacity and costs. Therefore, the distribution pattern is determined based on the existing cost and capacity, so that cost optimization can be achieved.

The existence of an increase in human life is the main goal of the growing development of information technology. There are several technologies in the field of Wireless Sensor Network (WSN) which are the main features, one of which is activity recognition. Using AR allows understanding human behavior when carrying out an activity. We have entered a period of population aging, namely an increase in life expectancy which increases with increasing old age. The elderly is susceptible to a disease called dementia. One of the symptoms of dementia is repetition of simple activities such as wandering. These symptoms can be detected by the AR system by classifying the current activity patterns of the elderly and comparing them with previously stored patterns to show early symptoms such as wandering. In efficient AR location research and Wi-Fi based detection methods using the Receive Signal Strength Indicator (RSSI) method and location detection algorithms with K-NN modeling with k = 1. With cross validation showing k = 1 yields an accuracy of 75.73% and distance The minimum average error is 0.298 meters which is better than k = 2 to k = 10.To see the pattern of object movement, in this case, the 85 year old elderly applies the Random Way Point (RWP) model as a model to infer or conclude dementia with calculating the value of the Atotal based on the location of the object and the time it was observed for 24 hours, and the result is that the amount of 3.139 exceeds the limit of normal conditions of 1.81.

Community service as a measure to socialize the Creative Economy through Technopreneur Training involves Muhammadiyah teachers from elementary to middle and high levels in Muhammaduyah Regional Leadership Tasikmalaya City is intended that teachers can operate businesses in their free time as teachers about business online by utilizing HP or Laptop/PC technology devices. Makning products for training participants can be as producers in the form of culinary, merchandise, resellers or as affiliates of goods or services that are created in such a way as a top products. The implementation of this training event was held on November 20, 2021 in the Auditorium of the University of Muhammadiyah Tasikmalaya. Community Service Activities had done well, this can be measured from the level of participation of participants during the training who had high enthusiasm and responsibility. This activity is expected to motivate Muhammadiyah teachers in order to improve the community's economy in their respective places or regions.