• Title/Summary/Keyword: Guide dog

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Implementation of Behavior Notification System for Guide Dog Harness Using IMU and Accelerometer Sensor (IMU 및 가속도 센서를 이용한 안내견 하네스 행동 알림 시스템 구현)

  • Ahn, Byeong-Gu;Noh, Yun-Hong;Jeong, Do-Un
    • Journal of the Institute of Convergence Signal Processing
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    • v.16 no.1
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    • pp.15-21
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    • 2015
  • In this paper, a behavior notification system of the harness of a guide dog is implemented for a blind person to get helps for environmental and situational awareness while walking with the guide dog. IMU modules is attached on the guide dog's harness saddle and the acceleration sensor belt is mounted on its thigh. Gait estimation and behavior judgement are performed by recording and analyzing the outputs of the sensors. Performance analysis for seven different kinds of behaviors has been done. The seven different behaviors, which the guide dog recognizes, are descending stairs, climbing stairs, uphill, downhill, stop, flat road, and selective disobedience. Results for the performance analysis show that the average success rate of the behavior rule estimation of harness of the guide dog is 92.78% and the behavior notification system can be effectively used in real situations.

A Study for Detecting AGV Driving Information using Vision Sensor (비전 센서를 이용한 AGV의 주행정보 획득에 관한 연구)

  • Lee, Jin-Woo;Sohn, Ju-Han;Choi, Sung-Uk;Lee, Young-Jin;Lee, Kwon-Soon
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2575-2577
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    • 2000
  • We experimented on AGV driving test with color CCD camera which is setup on it. This paper can be divided into two parts. One is image processing part to measure the condition of the guideline and AGV. The other is part that obtains the reference steering angle through using the image processing parts. First, 2 dimension image information derived from vision sensor is interpreted to the 3 dimension information by the angle and position of the CCD camera. Through these processes, AGV knows the driving conditions of AGV. After then using of those information, AGV calculates the reference steering angle changed by the speed of AGV. In the case of low speed, it focuses on the left/right error values of the guide line. As increasing of the speed of AGV, it focuses on the slop of guide line. Lastly, we are to model the above descriptions as the type of PID controller and regulate the coefficient value of it the speed of AGV.

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Radiographic Evaluation of Canine Hip Joint in Labrador Retrievers as Guide Dog (안내견으로 사용하고 있는 Labrador Retriever 고관절의 방사선학적 평가)

  • Choi Yoon-ju;Chung Dong-hee;Kim Hwan;Yoon Jung-hee
    • Journal of Veterinary Clinics
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    • v.22 no.3
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    • pp.249-252
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    • 2005
  • This study was carried out to assess hip joint in Labrador retrievers. From 1999 to 2004, 131 Labrador retrievers were tested by British Veterinary Association(BVA)/Kennel club(KC) scoring scheme, 66 were tested by $PennHIP^{(R)}$ method. In this study the mean score by BVA/KC scoring scheme was $12.5{\pm}6.6$ and the mean DI was $0.53{\pm}0.14$. It was found that Labrador retrievers of Samsung Guide Dog school have better hip joint condition than that of Labrador retrievers registered in BVA, and have similar mean DI to PennHIP breed mean score. This study suggested that using both BVA/KC scoring scheme and $PennHIP^{(R)}$ method was a specific method which can make the most possible definitive diagnosis, could provide baseline hip information for the hip joint in Labrador retrievers as Guide Dog.

Use of intraoperative impression smear cytology to guide successful treatment of a large renal cyst in a dog: a case report

  • Balda, Ignacio Otero;Vagias, Michail;Cassidy, Joseph;O'Brien, Peter J.;Mullins, Ronan A.
    • Journal of Veterinary Science
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    • v.23 no.2
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    • pp.34.1-34.7
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    • 2022
  • A 13-yr-old Shih tzu was referred for surgical management of right-sided cranial abdominal mass, which corresponded to large, cavitated renal mass on ultrasonography, and was suspected to represent neoplasia. Intraoperative impression smear cytology (ISC) of the renal mass wall was consistent with benign renal cyst (RC), without evidence of neoplasia or infection. Deroofing and omentalisation were performed and histopathology was consistent with benign RC. Chronic kidney disease was diagnosed 4 mon postoperatively, however, the dog was asymptomatic, without cyst reoccurrence. Intraoperative ISC is an expedient and inexpensive diagnostic technique that can guide most appropriate treatment in dogs with large RCs.

A Study on Morphology and Behavior of the Sapsaree : A Korean native dog (Canis familiaris)

  • Han, Kook-Il;Alam, Mahboob;Lee, Yun-Mi;Lee, Dong-Hoon;Ha, Ji-Hong;Kim, Jong-Joo
    • Journal of Animal Science and Technology
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    • v.52 no.6
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    • pp.481-490
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    • 2010
  • This study was conducted to characterize the morphological and behavior patterns of Sapsaree dogs. The population (n=8,256) has been constructed since 1990 over 12 generations and managed at the Sapsaree Breeding Research Institute, Gyeongsan, Gyeongbuk province. Eighteen morphological and seven behavioral traits were investigated for 882 individuals. Linear models were applied for each trait by fitting sex, season of birth, hair color or test age. The averages of body weight, body length, body height, and depth of chest were $20.5{\pm}2.4\;kg$, $57.3{\pm}4.2\;cm$, $52.1{\pm}3.6\;cm$, and $21.1{\pm}2.4\;cm$, respectively. Males had greater estimated values than females for these body conformation traits. The chocolate Sapsarees had greater averages for body weight, body height and chest depth. The older animals (>2 years) had heavier body weight than younger animals. About 54, 69, 97, 39 and 83.3% of the Sapsarees had hairs with yellow color, straight, medium to long, untangled, and longer around eyes, respectively. Also, about 40% brown eye, 43% curly tail, 78% normal jaw, 86% no missing teeth, 90% no dewclaw, and >90% with black nose, pendent ear, tongue without spots were observed. About 95% males were normal in testicles state. The males performed significantly better than the females for majority of the behavioral traits. For nerve stability, affability, wariness, adaptability, sharpness, activity, and reaction during blood drawn about 79%, 73%, 76%, 61%, 70%, 48% and 81% of the Sapsarees performed at desired level. In general, the Sapsarees showed good characteristics for both morphological and behavioral traits, which can be exploited to use the Sapsaree breed as a companion or guide dog.

Clinical Effect of Guide Bone Regeneration of Mandibular Nonunion in a Geriatric Dog (노령견의 하악골절 불유합 1례에서 골유도재생술의 임상적 효과)

  • Kim, Se-Eun;Shim, Kyung-Mi;Bae, Chun-Sik;Choi, Seok-Hwa;Jeong, Soon-Jeong;Kang, Seong-Soo
    • Journal of Veterinary Clinics
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    • v.30 no.2
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    • pp.127-130
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    • 2013
  • A 13-year-old, 4.2 kg female poodle was referred for failure of first bilateral mandibular surgery at a local animal hospital after pathologic fracture. Surgery was performed with 2.0-mm miniplates/screws and porcine cancellous bone grafts. In addition, because of the large size of the right segmental defect, a barrier absorbable membrane was employed for guide bone regeneration on right mandible. After surgery, follow-ups performed at 1 day, 1, 4, 8, and 12 weeks; there were no signs of dental malocclusion, nonunion or soft tissue infection. However, a 1-year long-term follow-up showed nonunion in the left mandibular fracture site for which a collagen membrane had not been used. It is considered that use of porcine bone graft with barrier absorbable membrane may be effective for the repair of mandibular nonunion in a geriatric dog.

Arthroscopic Findings of the Canine Stifle Joint (정상견 무릎의 관절경 검사소견)

  • 정순욱;정월순
    • Journal of Veterinary Clinics
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    • v.16 no.2
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    • pp.300-308
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    • 1999
  • Arthroscopy is a valuable diagnostic and operative tool in equine and human orthopedics. The arthroscope is a difficult instrument to use and requires patience, practice, and persistence in order to obtain good results. This technique was found to be less traumatic than arthrotomy, invasiveness, rapid recovery and the feasibility of surgically correcting many arthropathies. The use of the arthroscope in the dog provides a new dimension in the study and diagnosis of joint derangements. The purpose of this report is to introduce the use of the arthroscope in the dog-more specifically, in the stifle of the dog. A diameter 2.7 mm fore-oblique viewing arthroscope, cold light source, video and video printer are used. With the fore-oblique viewing type it is possible to view directly as well as slightly to the side and the range of viewing can be increased by rotating the arthroscope around the object The scope is connected with a cold light source by means of a fiber-optic light guide. The stifle joint was flexed to 20~30$^{\circ}$. The joint were lavaged with lactated Ringer's solution during arthroscopic examination. Arthroscopy of the stifle was performed prior to arthrotomy in 1 dead dog and 4 healthy dogs, and other 3 dogs was performed only arthroscopic examination. In this study only the conventional approaches were used and in most cases it was possible to view all the intra-articular structures via the lateral infrapatellar approach. In the stifle joint, endoscopic observation was performed to find lateral femoral condyle, patella, medial femoral condyle, trochlear groove, tibia, fat, cranial cruciate ligament, caudal cruciate ligament lateral meniscus, tendon of long digital extensor muscle, medial meniscus, and medial collateral ligament Post-arthroscopic examination, the lameness had disappeared within 12~24 hours. Pain and swelling in the stifle joint had disappeared within 24~36 hours. Post-arthroscopic secondary infection was never encountered in the dogs. In conclusion, arthroscopic insertion technique in canine stifle joint using a diameter 2.7 mm 30$^{\circ}$ arthroscope was established and arthroscopical views of all anatomical structures in the normal stilfe joint were obtained through lateral infrapatellar portal.

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Study on Power Control and Optimal Management for Dog-Horse Robot (견마로봇의 전력제어 및 최적 운용에 대한 연구)

  • Kang, Tae-Ha;Huh, Jin-Wook;Kim, Jun;Kang, Sin-Cheon
    • Journal of the Korea Institute of Military Science and Technology
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    • v.13 no.3
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    • pp.343-348
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    • 2010
  • Recently, unmanned electric vehicles are increasingly interested among all of the world since they can provide low exhaust gas, high efficiency and high mobility. To exploit their silent maneuver and high mobility, unmanned electric vehicles have been developed since early 1980's for military. However, it is not easy to design and control a power system satisfying operating duration and mobility performance requirements based on various mission profiles for military use under the conditions of limited space and weight. Moreover it is also necessary to prevent over-charge, over-discharge and voltage unbalance between cells of battery to secure high voltage battery which is serially connected with muti-cells. In this paper, we presents power control and optimal management method for the dog-horse robot which adopts a electric power system and suggests a guide-line to manage and control to secure high voltage battery.

Popliteal Lymphography in a Dog with Chylothorax

  • Bang, Sohyun;Lee, Hanbin;Park, Daehwan;An, Taegeon;Kim, Hyunryung;Yu, Jin;Yoon, Hyunglok;An, Gayeon;Oh, Hyehong;Chang, Jinhwa;Kim, Gonhyung;Chang, Dongwoo
    • Journal of Veterinary Clinics
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    • v.35 no.6
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    • pp.290-293
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    • 2018
  • Signalment: A dog which had been hit by car a month prior and had been experiencing recurrent pleural chyle effusion was referred to Chung-buk National University Animal Medical Center. The clinical signs included tachypnea and salivation. Results: Ultrasound-guided popliteal lymphography was performed. The computed tomography imaging revealed that the thoracic duct was ruptured and the lymph was leaking into the cranial mediastinal region. After this discovery, thoracic duct ligation was performed. The ultrasound-guided popliteal lymphography was repeated after the surgery. The second computed tomography imaging revealed that the thoracic duct rupture was resolved. Clinical relevance: We identified the etiology of chylothorax through the computed tomographic lymphography and imaged specific leakage areas. After surgery, the computed tomography imgaing confirmed the lymphatic flow modification and the treatment was successful.

Surgical Resection of Cardiac Hemangiosarcoma Using Articulated Surgical Stapler in a Dog

  • Woo-Jin Kim;Kyung-Min Kim;Won-Jong Lee;Chang-Hwan Moon;Hae-Beom Lee;Seong-Mok Jeong;Dae-Hyun Kim
    • Journal of Veterinary Clinics
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    • v.41 no.1
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    • pp.37-42
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    • 2024
  • This case report discusses the successful surgical resection of cardiac hemangiosarcoma in a dog using an articulated surgical stapler. Cardiac tumors, particularly hemangiosarcomas, have a poor prognosis. Recommended treatment involves surgical removal of the primary tumor, along with chemotherapy. However, the use of staples for cardiac tumor resection has not yet been extensively documented in the veterinary literature. A 10-year-old dachshund with pericardial effusion underwent surgery to remove a right atrial mass. An articulated linear cutting stapler was used for tumor resection. The patient experienced chylothorax as a complication but recovered well. However, the patient later developed respiratory symptoms and died, most likely due to aspiration pneumonia. The surgical stapler provided stability, convenience, and a shorter surgical time during tumor resection. Surgical resection combined with chemotherapy improves the survival of dogs with cardiac hemangiosarcoma. The stability and adjustability of the stapling device make it advantageous for cardiac tumor resection. Although complications, such as chylothorax, can arise, appropriate management can lead to positive outcomes. This case report demonstrates the feasibility and safety of using an articulated surgical stapler for cardiac tumor resection in dogs. Insights from this case can guide future research and clinical practice.