近年來登山運動越來越熱門，一群人或單獨一人也可透過登山這項休閒活動來達到紓解身心及釋放壓力的活動，登山看似簡單，卻很容易因為地形的不熟悉，或是因身體突發狀況出問題，導致發生傷害或是一場意外，故此研究會利用藍牙低功耗設計出簡易心跳偵測裝置，希望透過辨識生理狀態，來達到可以讓登山客監控自己的身體狀況及體力，避免因為發生意外而造成各種遺憾。

本研究是以低功耗藍牙為基礎，來設計登山者的心跳偵測裝置，未來的研究方向會結合雲端服務的應用，設計登山導航及高度辨..等。透過穿戴裝置紀錄所在位置跟高度，及偵測個人生理狀況。在研究的設備中，我們分成兩種裝置，有主裝置跟副裝置。主裝置配置在腰際間，負責收送資料；副裝置配置在手臂上，偵測手指的心跳數。副裝置主要是偵測心跳，再透過低功耗藍牙傳輸資料到主裝置上，主裝置收集到這些資訊後，再透過本身的3G模組把資料送往雲端伺服器做儲存，由雲端服務紀錄及運算，提供山路的辨識及高度，回傳給登山客所在位址，達到監控登山者的安全。

以低功耗藍牙來設計穿戴裝置的主要目的，是為了要節省智慧型手機耗電的問題，因在登山途中，登山客喜歡拍照美景，藉此分享到Facebook或其他社群網站上，但在分享同時必須保持3G網路的暢通；或是利用手機的Map當即時的登山導航，但因為智慧型手機開啟網路特別耗電，很容易在長時間的登山途中電力會消耗光，故此研究目前以偵測心跳，以及利用低功耗藍牙做傳輸資料。

經實驗結果，使用藍牙低功耗設備不僅可以達到節省大量電力，還可以因各種不同的應用去設定最佳化的參數，讓藍牙的待機時間達到最優化，確實可以利用在需要長時間待在外的登山場景中。現今市面上的登山導航系統，或是智慧型手機使用的APP，都沒有結合生理偵測的裝置，所以本研究希望可以透過目前所規劃的情境，設計出具有登山導航及生理偵測的穿戴裝置，提供登山者更安全、更愉快的使用介面。

SUMMARY
This paper studies mainly aimed Bluetooth Low Energy (BLE) and to use this application in climbers. The summary Contain (1) Part I will introduce the background and motivation, (2) Part II describes the architecture of the Internet of Things (IoT), (3) Part III describes the use hardware and the system flow chart, (4) Part VI is the experimental results, (5) Part V is the conclusion and we will summarize the result.

Key words: Bluetooth low energy, power saving, climbing, heartbeat detection.

INTRODUCTION
In recent years more and more popular for mountain sports, a group of people or a single person can also be used to achieve the release of pressure and relieve mental and physical activity through the leisure activities mountaineering, hiking sounds simple, very easy because it is not familiar with the terrain, or because sudden health problems, resulting in injury or an accident, so research will make use of Bluetooth low energy design a simple heartbeat detection device, is hoped to identify physiological conditions, to achieve allows climbers to monitor their health and physical avoid because of accidents caused by a variety of regret.

The study is based on low-power Bluetooth based, to design climbers heartbeat detection device, future research will be combined with the cloud services application, design mountaineering navigation and height resolution. Through wearable device records the location and height, and detect individual physiological conditions. In the apparatus of the study, we divided into two devices; there is a master device and slave device.

Master device is arranged between the waist, to send and receive data; slave device is arranged on the arm, the heart rate detection fingers. Slave device mainly to detect the heartbeat, and then through the low-power Bluetooth to transfer data to the Master device, the Master device collected the information and then through their own 3G module to send data to the cloud server for archiving, the cloud service records and operation, provide identification and mountain height, back to where the address climbers, climbers reach safety monitoring.

MATERIALS AND METHODS
The main objective will be to design a low-power Bluetooth wearable device is in order to save power consumption smartphones problem, because the way in mountaineering, climbers like taking pictures beauty, whereby share on Facebook or other social networking sites, but while sharing 3G networks must remain unblocked; or when using a mobile phone Map immediate mountaineering tour, but because smart phones open network special power, it is easy in the long way climbing will consume the power of light, so Research currently to detect a heartbeat, and the use of low-power Bluetooth do transfer data.

RESULTS AND DISCUSSION
The experimental results, the use of Bluetooth low energy devices can not only achieve power, money purposes, but also for a variety of different applications to set optimization parameters, so Bluetooth standby time is optimized, it can really take advantage of the need for a long time to be out climbing scenes.
Today does not have any mountaineering navigation system with the bonding physiological detection device, so this study can hope through the planning situation, design a wearable device with this feature offers climbers a safer and more enjoyable to use interface.

Observation of current smart phones, mobile devices integrated health physiological sensing function caused by the main cause of the boom is mainly conventional pulse or advanced physiological measurements required mostly with professional equipment, equipment unit price is high, bulky unable convenient to carry and always observe the measured data but now we have cheap sensors can be used, and displays real-time information through mobile devices, allowing users do not need to purchase special medical equipment to keep abreast of the state of health, just to meet the current popular health craze.

CONCLUSION
From the experimental results can know, Bluetooth Low Energy may depending on the application which to set optimization parameters, for example, in this study, is used in mountaineering journey, so no heartbeat has been detected, it can be separated 1 to 2 seconds measured like, so the experimental results, the standby state can reach more than a year, it does not need to have the charge or replace the battery, than carry smart phones, saving over more power.

It expected to provide wearable device with direction identification and physiological detection, and there will be exclusive to do service corresponding APP.
Currently on the market is not only physiological detection function unilateral mountaineering navigation or unilateral. We offer this new feature, along with the development of mountaineering navigation, physiological detection and entertainment, through this innovative service, so climbers can be safer and more fun experience climbing.

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