Abstract:
과수용 반사판 관리 장치 및 이를 이용한 방법이 개시된다. 본 발명에 따른 과수용 반사판 관리 장치는, 태양광의 광량을 센싱하는 태양광 센서; 재배 지역에서 재배되는 과수들의 종류들 및 위치들이 저장된 과수 데이터베이스; 무선 통신망을 통하여, 과수용 반사판 이동 로봇 및 과수용 반사판과 통신을 수행하는 무선 통신부; 및 상기 광량, 상기 종류들 및 위치들 중 어느 하나 이상을 고려하여, 상기 재배 지역 내에 상기 과수용 반사판을 설치하도록 상기 과수용 반사판 이동 로봇을 제어하고, 설치된 상기 과수용 반사판이 상기 태양광을 반사하는 반사각을 제어하는 중앙 처리부를 포함한다.
Abstract:
PURPOSE: A snow removing device for a greenhouse is provided to efficiently remove snow from the greenhouse by using air. CONSTITUTION: One or more blowers(300) emit wind to the outside the greenhouse and remove snow while moving along one or more rails(400) which are installed along the longitudinal direction of a greenhouse. A sensor senses the amount of snowfall. A control unit(200) controls intensity of one or more of the blowers according to the sensed amount of snowfall. [Reference numerals] (200) Control unit
Abstract:
차량 단말은 교차로에 설치된 신호등의 식별자 정보를 이용하여 교차로에 진입하면, 이전 교차로를 통과하고 현재 교차로에 진입할 때까지의 교차로 운행 시간 정보를 정보 제공 서버로 전송한다. 또한, 차량 단말은 현재 교차로를 통과하게 되면, 현재 교차로에서의 교차로 신호 대기 시간 정보를 정보 제공 서버로 전송한다. 그러면, 정보 제공 서버는 교차로 운행 시간 정보와 교차로 신호 대기 시간 정보를 토대로 교통 상황 정보를 사용자에게 제공한다. 교통 정보, 차량 단말, GPS 정보, 신호등
Abstract:
PURPOSE: A routing route establishment method in a sensor network and sensor node supporting the same are provided to reduce congestion generated in a network by establishing routing routes which includes minimum traffic load amount of a sensor node. CONSTITUTION: A reception unit(510) receives energy reduction rate information of a routing route from a first neighbor sensor node or a sync node. A calculation unit(520) calculates gradient values by using the energy reduction rate information and the residual energy reduction rate information of the sensor node. A route establishment unit(530) establishes routes based on the gradient values. A transmission unit(540) transmits messages using the established route. The energy reduction rate information includes maximum energy reduction rates and total energy reduction rates.
Abstract:
An apparatus and a method for providing of transportation information, an apparatus and a method for receiving the transportation information are provided to efficiently obtain the desired information by using a ZigBee mobile network. A traffic information receiver(200) is positioned within the constant distance from a traffic information transmitter which is installed at the specific location on the route of the specific public transport. A receiver(210) sets up the ZigBee mobile network based on the ZigBee wireless network channel information broadcasted from the supplying apparatus. The receiver periodically receives the traffic information of the specific public transport. An input unit(220) receives the filtering condition from the user and delivers to a filter section. The filter section(230) extracts only the specific traffic information corresponding to the user request. A transform unit(240) converts the specific traffic information which is filtered through the filter section.
Abstract:
A separation type node control apparatus in a sensor network is provided to change function of a sensor node or a sink node since the node control apparatus is an SD(Secure Digital) card type. A separation type node control apparatus comprises a first interface(305), a transceiver(313) and a control unit(315). In the first interface, a power source line and a data signal line are connected to the outside. The transceiver is communicated with the outside, and connected to the first interface. The control unit is connected to the transceiver and the first interface, and controls the transceiver, a second interface(311) and an external device which is connected to the first interface. Wherein, the control unit, the transceiver and the second interface unit are driven by a power source supplied from the outside.
Abstract:
A ZigBee repeater, a data transmission method of the ZigBee repeater, and a ZigBee wireless network system using the method are provided to link with various wireless networks easily by using the ZigBee repeater, thereby reducing legacy network resources including a ZigBee wireless network. A ZigBee wireless network consists of the first ZigBee node and the second ZigBee node. A ZigBee repeater(400) transmits data received from the first ZigBee node to the second ZigBee node located at a further distance where the first ZigBee node is able to wirelessly transmit the data. The ZigBee repeater(400) consists of plural antennas(410a,410b) for transceiving the data with the nodes, and a ZigBee protocol stack of the same structure as a protocol stack structure of the nodes for each of the antennas(410a,410b), for data transmission between the antennas(410a,410b).
Abstract:
Disclosed is a light-shielding device including a solar cell. The light-shielding device including a solar cell includes: a frame which opens or closes according to the state of atmosphere; a light-shielding layer which is coupled to the frame and blocks the sunlight; and a solar cell which is coupled to the light-shielding layer and generates electricity from the solar energy. Accordingly, the present invention can block the sunlight from entering a greenhouse and generates electricity out of the solar energy at the same time.
Abstract:
The present invention relates to a snow removal device for a greenhouse having a suction function, which sucks snow accumulated on the upper part of a greenhouse in heavy snow to prevent collapse and damage of the greenhouse due to snow accumulation, melts the sucked snow and stores the sucked snow in a reservoir to be utilized as agricultural water. The present invention relates to a snow removal device for a greenhouse, which is to suck snow accumulated in the outside of a greenhouse, and to heat into water and to store the water in a reservoir, and comprises a sensing unit of sensing the snow depth of the outside of the greenhouse to determine whether to perform the snow removal, and sensing the water level of the reservoir to determine whether or not water is stored in the reservoir; a suction unit sucking snow accumulated on the greenhouse according to the sensing result of the sensing unit; a heating unit liquefying the snow sucked in the suction unit so as to be stored in the reservoir as water; a control unit connected to the sensing unit in circuit and controlling the operation of the suction unit and the heating unit; and a moving unit operated by the control unit and moving the suction unit in the outside of the greenhouse. [Reference numerals] (210) Reservoir; (220) Sensing unit; (230) Suction unit; (240) Heating unit; (250) Control unit; (260) Driving unit
Abstract:
The present invention relates to a platform device facilitating the addition and replacement of a sensor and a driver by providing an interface and a service corresponding to elements which control an agricultural environment in an agricultural environment control system and performing abstraction over a sensor and a driver in the agricultural environment control system. The platform device comprises: an application supporting layer unit for generating and operating an environmental task which supports an application corresponding to an environment to which an agricultural environmental control system is applied; a service layer unit for providing a service library which the application uses; a function layer unit for performing functions required to operate the application; an dynamic adaptation layer unit for defining an environmental task in an application layer regardless of number of sensors and drivers installed in the environment to which the agricultural environmental control system is applied; and a physical abstraction layer unit for generating a mapping table using a result of abstraction over the sensor and driver and allowing the agricultural environmental system to access the sensor and driver using the mapping table. [Reference numerals] (10) Application;(20) Middle ware;(200) Agricultural environment control platform device;(30) Device driver;(41) Sensor;(42) Driver;(AA) Greenhouse environment