Global Positioning System Technology Research Articles

Effectiveness of GPS technology in monitoring of traffic-induced response of highway steel bridge

Despite some disadvantages, regarding the limited accuracy, the Global Positioning System (GPS) is widely used in monitoring of long-span bridges. This paper is concerned with the analysis of the capabilities and limitations of the use of the GPS technology in monitoring of semi-static and dynamic vertical responses of a highway steel cable-stayed bridge excited by traffic loads. The field test was conducted on the Maxau Rhine Bridge, located over the Rhine River near Karlsruhe, Germany. The so-called baseline method with the Post-Processing mode was applied using two units Leica Viva GS15. The basic characteristics of the GPS background noise before and after filtering were examined in the time and frequency domain. The natural frequencies of the bridge were extracted based on the vertical dynamic displacements recorded in the mid-span of the bridge using GPS and accelerometer. It was shown that the GPS receivers were able to measure only two primary modal frequencies of the bridge. The obtained experimental results proved that the GPS system is an efficient tool in measuring the vertical semi-static displacements of the bridge with satisfactory accuracy. Moreover, GPS is capable of tracking the vertical vibrations of long-period bridges to a few millimeters.

Aligning mountain lion hunting seasons to mitigate orphaning dependent kittens

ABSTRACTHunting results in direct numerical effects and numerous indirect effects on game species. One indirect effect occurs when a female is killed; and as a consequence, her dependent offspring die, negatively affecting recruitment rates. The mountain lion (Puma concolor) is a hunted species across much of its range. It is almost always illegal to harvest a female with dependent young; however, females frequently travel separately from their kittens, and the occasional unintentional harvest of females with dependent young is unavoidable. We studied the denning periods for female mountain lions in northwest Wyoming, USA, from June 2001 to December 2016, but more intensively between January 2013 and December 2016 with Global Positioning System (GPS) technology. During the intensive period, we measured the amount of time females spent away from the den, distance and time females traveled during each foraging trip, and distance traveled during the entire denning period. We also compared the timing of dens with mountain lion hunting seasons. We recorded parturition dates between 6 June and 4 November. On average, females utilized 4.2 ± 0.5 (SE) dens/denning period, with denning periods persisting 45.8 ± 2.6 (SE) days. The average total distance traveled by females during their 6‐week denning period was 154 km (±18.8 km). On average, females were closest or most likely to be with their kittens at 1600, and furthest from den sites at 0200 and 0600. Utilizing our mean denning period of 46 days, delaying mountain lion hunting until 1 November would avoid the denning period for 85% of dens, and delaying until 1 December would avoid 91% (n = 31). Our research provides information to guide managers in aligning hunting seasons to mitigate orphaning kittens when they are youngest and most vulnerable, and provide hunters the best opportunities to detect and protect dependent young. © 2018 The Wildlife Society.

Genomic sequencing, evolution and molecular epidemiology of rabies virus.

Advances in sequencing techniques, improved computational methods of sequence interrogation and more accurate collection of epidemiological data through Global Positioning System (GPS) technology are improving our ability to monitor rabies outbreaks and better understand the processes that affect viral spread, evolution and host restriction. Whole-genome sequencing of rabies viruses (RABVs), using a range of different methodological approaches, is becoming more widespread and permits evolutionary and epidemiological studies at an unprecedented rate. Such studies are yielding insights into the fundamental processes of viral evolution, including molecular mechanisms of host adaptation and viral emergence in novel hosts. In addition, sequence data are revealing the importance of both landscape features and anthropomorphic activities as drivers of rabies spread; knowledge that is crucial for disease control efforts. This review summarises the state of the RABV genomics field and suggests how the above-mentioned approaches can be used to further understand and develop intervention strategies for rabies in the future.

Muscle Glycogen Utilization During an Australian Rules Football Game.

To better understand the carbohydrate (CHO) requirement of Australian Football (AF) match play by quantifying muscle glycogen utilization during an in-season AF match. After a 24-h CHO-loading protocol of 8 and 2g/kg in the prematch meal, 2 elite male forward players had biopsies sampled from m. vastus lateralis before and after participation in a South Australian Football League game. Player A (87.2kg) consumed water only during match play, whereas player B (87.6kg) consumed 88g CHO via CHO gels. External load was quantified using global positioning system technology. Player A completed more minutes on the ground (115 vs 98min) and covered greater total distance (12.2 vs 11.2km) than player B, although with similar high-speed running (837 vs 1070m) and sprinting (135 vs 138m). Muscle glycogen decreased by 66% in player A (pre: 656mmol/kg dry weight [dw], post: 223mmol/kg dw) and 24% in player B (pre: 544mmol/kg dw, post: 416mmol/kg dw). Prematch CHO loading elevated muscle glycogen concentrations (ie,>500mmol/kg dw), the magnitude of which appears sufficient to meet the metabolic demands of elite AF match play. The glycogen cost of AF match play may be greater than in soccer and rugby, and CHO feeding may also spare muscle glycogen use. Further studies using larger sample sizes are now required to quantify the interindividual variability of glycogen cost of match play (including muscle and fiber-type-specific responses), as well examining potential metabolic and ergogenic effects of CHO feeding.

Influences of Playing Position and Quality of Opposition on Standardized Relative Distance Covered in Domestic Women's Field Hockey: Implications for Coaches.

Vinson, D, Gerrett, N, and James, DVB. Influences of playing position and quality of opposition on standardized relative distance covered in domestic women's field hockey: Implications for coaches. J Strength Cond Res 32(6): 1770-1777, 2018-The purpose of this study was to compare the standardized relative distance covered by the various playing positions (defenders, midfielders, and forwards) against different quality of opponents in domestic women's field hockey. Data were collected from 13 individuals competing for 1 team in the English Premier League across an 18-game season. Data were collected using portable global positioning system technology. Distance data were grouped into 6 speed zones relative to individual players' maximum sprint speeds and then standardized by dividing by the number of on-pitch minutes. Dependent variables included distance covered in the 6 speed zones, as well as the number of sprints and repeated sprint efforts (RSEs) completed in the highest speed zone. Participants covered a significantly greater total distance when competing against opponents from top 3 teams compared with middle 3 teams (111.78 ± 2.65 m·min vs. 107.35 ± 2.62 m·min, respectively). This was also true for distance covered in zone 4 (running) (29.47 ± 1.69 m·min vs. 27.62 ± 1.45 m·min, respectively) and zone 5 (fast running) (23.42 ± 1.76 m·min vs. 21.52 ± 1.79 m·min, respectively). Defenders (99.77 ± 4.36 m·min) covered significantly less total meters per minute than midfielders (117.20 ± 4.36 m·min) and completed significantly fewer RSEs per on-pitch minute (0.21 ± 0.03 and 0.33 ± 0.03, respectively). Midfielders covered significantly less distance in zone 2 (walking) than forwards (19.38 ± 1.64 m·min and 30.33 ± 2.12 m·min, respectively). Conversely, midfielders were shown to cover significantly more distance in zone 3 (jogging) than forwards (32.84 ± 1.10 m·min and 24.61 ± 1.42 m·min, respectively). A standardized and relative assessment may be useful for coaches' and performance analysts' understanding of players' performance in different positions or against different quality opponents.

Match-running performance of young soccer players in different game formats

ABSTRACTPresent study aimed to analyse the effect of game format, age-group, and playing position on match-running variables of soccer players (age ranging from 6.94 ± 0.7 to 13.46 ± 0.5 years; height ranging from 125.36 ± 6.04 to 159.16 ± 7.78 cm; weight ranging from 27.16 ± 5.75 to 49.89 ± 8.89 kgf). Match-running variables were assessed using global positioning system technology. Results suggest that game formats, which include more players have a significant effect on match-running variables than those having fewer players (p < 0.001). Moreover, oldest age-groups covered significantly higher distances in all categories than younger groups, total distance (TD): η2 = 0.32, p < 0.001; low-intensity running (LIR): η2 = 0.09, p < 0.001; high-intensity running (HIR): η2 = 0.25, p < 0.001; very high-intensity running (VHIR): η2 = 0.34, p < 0.001; very high-intensity activity (VHIA): η2 = 0.42, p < 0.001; and sprinting (SP): η2 = 0.41, p < 0.001). Match-running variables also differ among playing positions. Defenders covered lowest TD and HIR in all age-groups; midfielders covered highest TD and LIR in all age-groups (p < 0.001); forwards covered highest VHIR, VHIA, and SP in U14 age-group. Defenders covered lowest TD, LIR, HIR, and VHIR; midfielders covered highest TD and HIR regardless game format (p < 0.001); forwards covered highest VHIR, VHIA, and SP in 11v11 format (p < 0.001). These findings can provide an opportunity for coaches to maximise the efficiency of their training sessions.

Comparison of technical and physical activities between 8 vs. 8 and 11 vs. 11 games in young Korean soccer players.

The aims of this study were to examine the differences in technical aspects and physical demands between small-size games (SSG; 8 vs. 8) and regular-size games (RSG; 11 vs. 11) in young Korean soccer players. Seventy-nine young soccer players from 6 teams (U-12) volunteered to participate in the study. The players completed 4 games (2 SSG, 62×51 m, and 2 RSG, 80×54 m) in 2 days. Each game was filmed to evaluate technical actions. Physical demand variables were measured using global positioning system technology. SSG showed significantly greater numbers of technical plays among 17 variables when compared to RSG (P<0.05). The players covered significantly greater total distance during low−, moderate−, and high-speed running and sprinting in SSG than in RSG (P<0.05). Higher numbers of high-intensity activities (repeated high-intensity efforts, explosive efforts, decelera-tions, accelerations, and sprinting) were observed in SSG compared to RSG (P<0.05). Mean heart rate was also higher in SSG than in RSG (P<0.05). Despite the greater physical demands during SSG, the exercise intensity was similar to that reported in previous studies. Therefore, the SSG format applied in the present study can be a suitable official game format for Korean young soccer players, resulting in significantly greater exposure to technical plays without excessive physical demands.

Hidden Work and the Challenges of Scalability and Sustainability in Ambulatory Assisted Living

Assisted living technologies may help people live independently while also—potentially—reducing health and care costs. But they are notoriously difficult to implement at scale and many devices are abandoned following initial adoption. We report findings from a study of global positioning system (GPS) tracking devices intended to support the independent living of people with cognitive impairment. Our aims were threefold: to understand (through ethnography) such individuals’ lived experience of GPS tracking; to facilitate (through action research) the customization and adaptation of technologies and care services to provide effective, ongoing support; and to explore the possibilities for a co-production methodology that would enable people with cognitive impairment and their families to work with professionals and technical designers to shape these devices and services to meet their particular needs in a sustainable way. We found that the articulation work needed for maintaining the GPS technology in “working order” was extensive and ongoing. This articulation work does not merely supplement formal procedures, a lot of it is needed to get round them, but it is also often invisible and thus its importance goes largely unrecognized. If GPS technologies are to be implemented at scale and sustainably, methods must be found to capitalize on the skills and tacit knowledge held within the care network (professional and lay) to resolve problems, improve device design, devise new service solutions, and foster organizational learning.

Assessment of Vulnerable Buildings Due to Earthquake Loading Using Rapid Visual Screening Smartphone Application

Examination of vulnerability level of buildings to earthquakes is divided into two types, the quick checks (Rapid Visual Screening, RVS) and a thorough examination. On thorough examination, it involves specialists of the field of building structures and other related fields, takes longer and is also cost much more expensive. While a quick check, it does not involve many specialists in a particular area, does not require a long time and are relatively inexpensive. This study builds an assessment of the vulnerability of buildings quickly adapted from FEMA 154 to the conditions and rules that applied in Indonesia using a smartphone application. A Global Positioning System (GPS) technology is used to mark the location of the data of the examination. The smartphone application called RViSITS is used to simplify and speed up the examination process and sent via the internet, and the server as a gathering and processing data. Furthermore, from these data do building vulnerability mapping and disaster affected areas, which can then be accessed by the public, government and private sectors as well as database information. In this research, the RViSITS application process is to apply the application to do a quick check on the buildings in Surabaya, so that later the database and mapping vulnerability condition of buildings owned by government institutions in Surabaya against earthquake loadings can be made. While in general, this application can be used any places, so that the database and mapping the vulnerability of buildings can be held any area in Indonesia.

Acceleration Profile of Elite Gaelic Football Match Play.

Ryan, M, Malone, S, and Collins, K. An acceleration profile of elite Gaelic football match play. J Strength Cond Res 32(3): 812-820, 2018-The use of global positioning system (GPS) technology in Gaelic football is the primary source of quantifying game demands. The aim of this study was to quantify the acceleration profile of elite Gaelic football. Thirty-six elite male Gaelic football players (mean ± SD, age: 24 ± 6 years; height: 180 ± 7 cm; mass: 81 ± 7 kg) across 5 playing positions took part in a multiple study (n = 154 observations). Player movement was recorded during 19 (n = 19) competitive games over 2 seasons using 4-Hz GPS (VXSport, New Zealand). The average total distance (m), high-speed running distance (m; ≥17 km·h), and very high-speed running distance (m; ≥22 km·h) were recorded. In addition, the number (n), distance (m), and the duration of accelerations were quantified. Accelerations were subdivided into 14 equal parts of 5-minute epochs (E1 = 0-5 minutes, E2 = 5-10 minutes, E3 = 10-15 minutes etc). Players performed 166 ± 41 accelerations. High-speed running distance and very high-speed running distance was 1563 ± 605 and 524 ± 190 m, respectively. The mean acceleration distance was 267 ± 45 m distributed between 12 ± 5 accelerations per 5-minute epoch. The maximum acceleration epoch classified as the greatest distance covered accelerating during a predetermined 5-minute epoch was 296 ± 134 m. The PEAK epoch resulted in a significant reduction of acceleration distance covered in the period before and in the subsequent epoch. An understanding of the acceleration profile in Gaelic football can inform the prescription of appropriate training regimen.

Normative Data for Critical Speed and D' for High-Level Male Rugby Players.

Kramer, M, Clark, IE, Jamnick, N, Strom, C, and Pettitt, RW. Normative data for critical speed and D' for high-level male rugby players. J Strength Cond Res 32(3): 783-789, 2018-The critical speed (CS) concept helps characterize the aerobic and anaerobic fitness of an athlete. Rugby players should, hypothetically, have modest CS values but extremely high curvature constant (D') values, yet, normative data are currently unavailable. To develop normative data of CS and D' for high-level male rugby players, a total of 30 male rugby players were recruited from the Eastern Cape of South Africa. All subjects performed the running 3-minute all-out exercise test (3 MT) using global positioning system (GPS) technology to determine CS and D'. The GPS data were used to determine the total distance and velocities performed, and to examine for pacing effects. Summary statistics of mean ± SD are provided. High total running speeds for the initial 150 seconds (S150s = 5.79 ± 0.59 m·s), and total distance (3 MT distance = 871.5 ± 71.9 m) were observed. A total of 13 of 30 subjects surpassed the 300 m D' value (mean D' = 288.2 ± 49.1 m). The CS of the total group was 3.87 ± 0.55 m·s. All 3 MT-derived data were categorized using standard nine (stanine) tables that allowed for the generation of normative data with which future performances, performances across similar sporting domains, and more accurate contrasts across the literature can be compared. Skewing of CS and D' was observed between forwards and backs, therefore, between-group differences in neither CS nor D' were observed (p > 0.05). Comparisons with previous literature indicate that male rugby players have higher CS values than female rugby players. When compared with Olympic distance runners, male rugby players have markedly higher D' values and markedly lower CS values. The 3 MT provides a useful procedure for assessing and prescribing high-intensity interval training for rugby athletes.

An open-source hardware GPS data logger for wildlife radio-telemetry studies: A case study using Eastern box turtles

Abstract Global Positioning System (GPS) telemetry technology has been a boon to animal spatial ecology studies. Oftentimes, the main limitation to widespread application of this technology is the cost, which can dictate the number of individuals outfitted with GPS technology, thereby limiting sample sizes. Here, we discuss the development of a low-cost, customizable, open-source hardware GPS logger for use in animal movement studies. We also present results from field tests with Eastern box turtles (Terrapene carolina) in northwestern Ohio. These GPS loggers have the potential to augment existing projects and facilitate studies that would be otherwise cost-prohibitive.

Bridge monitoring using BDS-RTK and GPS-RTK techniques

Global Navigation Satellite System (GNSS), especially Global Positioning System (GPS) technology has been employed to monitor large bridge deformation for more than 20 years. With the efforts of Chinese government and scholars, BeiDou regional navigation satellite system (BDS) has fully operated since December 27th, 2012, and the new-generation BeiDou-3 navigation satellites started to launch in 2015. That means BDS could be a new tool for the SHM (Structural Health Monitoring) of bridges. Hence, in this study, we will primarily focus on the promising performance of BDS system in the area of bridge monitoring. Firstly, the basic information of BDS satellites orbit was introduced. Then, the background noise and the ability to detect displacements of BDS were examined in an experimental platform. Thirdly, an experiment at the Baishazhou Yangtze River Bridge in China was carried out to assess the performance that BDS has compared with GPS. We found that the precision of BDS at static mode can achieve to 2–3 mm and 5–7 mm in horizontal and vertical component, and millimeter level displacements can also be detected by BDS measurements. With the real bridge monitoring data, BDS has a same or even better observation condition and data quality compared with GPS. It can also effectively identify the natural frequencies and movement statement of the bridge.

The Acquisition of Sand Vibration Information in Hinterland of Desert Based on Advanced Remote Sensing System and Network Technologies

The deep understanding on sand and sand dunes scale can be useful to reveal the formation mechanism of the sandstorm for early sandstorm forecast. The current sandstorm observation methods are mainly based on conventional meteorological station and satellites remote sensing, which are difficult to acquire sand scale information. A wireless sensing network is implemented in the hinterland of desert, which includes ad hoc network, sensor, global positioning system (GPS) and system integration technology. The wireless network is a three-layer architecture and daisy chain topology network, which consists of control station, master robots and slave robots. Every three robots including one master robot and its two slave robots forms an ad hoc network. Master robots directly communicate with radio base station. Information will be sent to remote information center. Data sensing system including different kinds of sensors and desert robots is developed. A desert robot is designed and implemented as unmanned probing movable nodes and sensors’ carrier. A new optical fiber sensor is exploited to measure vibration of sand in particular. The whole system, which is delivered to the testing field in hinterland of desert (25 km far from base station), has been proved efficient for data acquisition.

Accuracy, intra- and inter-unit reliability, and comparison between GPS and UWB-based position-tracking systems used for time–motion analyses in soccer

There is interest in the accuracy and inter-unit reliability of position-tracking systems to monitor players. Research into this technology, although relatively recent, has grown exponentially in the last years, and it is difficult to find professional team sport that does not use Global Positioning System (GPS) technology at least. The aim of this study is to know the accuracy of both GPS-based and Ultra Wide Band (UWB)-based systems on a soccer field and their inter- and intra-unit reliability. A secondary aim is to compare them for practical applications in sport science. Following institutional ethical approval and familiarization, 10 healthy and well-trained former soccer players (20 ± 1.6 years, 1.76 ± 0.08 cm, and 69.5 ± 9.8 kg) performed three course tests: (i) linear course, (ii) circular course, and (iii) a zig–zag course, all using UWB and GPS technologies. The average speed and distance covered were compared with timing gates and the real distance as references. The UWB technology showed better accuracy (bias: 0.57–5.85%), test–retest reliability (%TEM: 1.19), and inter-unit reliability (bias: 0.18) in determining distance covered than the GPS technology (bias: 0.69–6.05%; %TEM: 1.47; bias: 0.25) overall. Also, UWB showed better results (bias: 0.09; ICC: 0.979; bias: 0.01) for mean velocity measurement than GPS (bias: 0.18; ICC: 0.951; bias: 0.03).

Detecting and localizing moving targets using multistatic radar system

This paper deals with multistatic radar system consisting of several independent monostatic radars. Processing of the acquired radar signals that are scattered from a moving target was performed in order to locate the target and to predict its velocity. Using the measurement data provided by the different radar antennas, extraction of time delays and Doppler frequencies was achieved. Then the target position coordinates and the target velocity were identified by means of an algorithm inspired from the global positioning system technology.

Impacts of translocation on a large urban-adapted venomous snake

Context Translocation as a tool for management of nuisance or ‘problem’ snakes near urban areas is currently used worldwide with limited success. Translocated snakes experience modified behaviours, spatial use and survivorship, and few studies have investigated the impacts of translocation within a metropolitan area. Aims In the present study, we investigated the impacts of translocation on the most commonly encountered snake in Perth Western Australia, the dugite (Pseudonaja affinis, Elapidae), by comparing the space use of resident and translocated snakes. Methods We captured 10 dugites and attached telemetry packages, composed of a radio-telemetry transmitter and global positioning system (GPS) data-logger, externally to their tails. Snakes were either released within 200 m of their initial capture sites (residents, n = 6) or moved to new unconnected habitat at least 3 km away (translocated, n = 4). Spatial-use data were analysed using general linear models to identify differences between resident and translocated dugites. Key results Translocation influenced space use of dugites and detrimentally affected their survivorship. Translocated snakes had larger activity ranges than did residents, and there was a trend towards travelling greater distances over time. Mortality for all snakes was high: 100% for translocated snakes, and 50% for residents. Conclusions Urban dugites face many threats, and snakes were negatively affected by translocation. The GPS technology we used did not improve the quality of the data over traditional radio-telemetry methods, owing to the cryptic nature of the snakes that spent much of their time under cover or underground. Implications These findings support the growing body of evidence that translocating ‘problem’ snakes is a not a humane method of animal management, and alternatives such as public education, may be more appropriate.

Relationships Between the External and Internal Training Load in Professional Soccer: What Can We Learn From Machine Learning?

Machine learning may contribute to understanding the relationship between the external load and internal load in professional soccer. Therefore, the relationship between external load indicators (ELIs) and the rating of perceived exertion (RPE) was examined using machine learning techniques on a group and individual level. Training data were collected from 38 professional soccer players over 2 seasons. The external load was measured using global positioning system technology and accelerometry. The internal load was obtained using the RPE. Predictive models were constructed using 2 machine learning techniques, artificial neural networks and least absolute shrinkage and selection operator (LASSO) models, and 1 naive baseline method. The predictions were based on a large set of ELIs. Using each technique, 1 group model involving all players and 1 individual model for each player were constructed. These models' performance on predicting the reported RPE values for future training sessions was compared with the naive baseline's performance. Both the artificial neural network and LASSO models outperformed the baseline. In addition, the LASSO model made more accurate predictions for the RPE than did the artificial neural network model. Furthermore, decelerations were identified as important ELIs. Regardless of the applied machine learning technique, the group models resulted in equivalent or better predictions for the reported RPE values than the individual models. Machine learning techniques may have added value in predicting RPE for future sessions to optimize training design and evaluation. These techniques may also be used in conjunction with expert knowledge to select key ELIs for load monitoring.

The importance of fieldwork over predictive modeling in quantifying predation events of carnivores marked with GPS technology

© 2017 American Society of Mammalogists. Global positioning system (GPS) technology has revolutionized the study of carnivores. Researchers commonly estimate kill rates with data using the following steps. Firstly, researchers mark individual animals and fit them with collars. Next, they visit a subset of GPS (aggregated location data) during field surveys and assign spatiotemporal covariates associated with predation and non-predation events. Lastly, they develop predictive models with data collected in the field to estimate the probability that each cluster they did not visit in the field was a predation event. Such predation models help reduce field efforts and save money; however, these models are prone to error when carnivores eat prey of different sizes or exhibit shorter-than-expected handling times. We simulated reduced field efforts to investigate the reliability of predictive modeling in determining diet composition and detecting predation events for 3 puma (Puma concolor) populations with different prey assemblages and potential effects on handling time of carcasses. We visited a total 1,896 clusters in Chilean Patagonia, Colorado, and California, of which 1,752 clusters (∼92%) were included to build and test predation models. Across all study areas, the total time a puma spent at a cluster was the only reliable predictor of a cluster being a predation event. When we reduced field efforts by selectively removing clusters < 12 and < 24 h in length, model performance improved but produced inaccurate results. Predation models underestimated the number of predation events in California and Colorado and significantly over-or underestimated the number of predation events in Patagonia. Selectively reducing field efforts also reduced the diversity and evenness of prey we recorded in puma diets. Randomly reducing field efforts, in contrast, reduced the precision of model estimates. Our results highlight the importance of conducting intensive fieldwork over predation modeling to measure prey selection and kill rates of carnivores.

SISTEM INFORMASI GEOGRAFIS BERBASIS MOBILE ANDROID UNTUK PEMETAAN LOKASI PENGRAJIN KERAJINAN TANGAN KHAS GORONTALO

Gorontalo handicraft industry is already widespread in the territory of Indonesia, and even then more introduced by the people of Gorontalo in overseas. In early 2006, Gorontalo's unique handicraft products received attention from both central and provincial governments to fight for patents on products (Hinelo, 2008). It shows that the creative industry business run by the Gorntalo Society has been well developed. The researcher intends to design a mobile geographic information system based on android for mapping the location of craftsmen typical of Gorontalo handicraft. This system is the application of GIS mobile system that is integration between three technology, that is GIS software, Global Positioning System (GPS) technology, and mobile device. This mobile-based designed system is intended to make this system easier to use by the Community because the system can be accessed simply by using a mobile device. While android is a mobile phone operating system that grows in the middle of other operating systems that develop this dewasi. This system will provide location information dilegkapi with travel routes as well as a description of the handicraft industry selected by the user / community. This system will provide location information dilegkapi with travel routes as well as a description of the handicraft industry selected by the user / community. With this system will be able to provide convenience to anyone who wants to find the location / location of handicraft industry typical Karawo patterned clothing Gorontalo. This system can run well based on testing on system logic using whitebox method obtained value of Ciclometic Complexity (CC) = 3. Keywords: Geographic Information System, Android, Karawo