摘要:
본 발명에 따르면, 엔드 노드는 폴링 주기가 되면 어웨이크 모드로 전환되어 검침 데이터 및 배터리 사용 상태 데이터를 포함한 폴링 신호를 라우터 노드로 전송하는 단계, 원격 검침 서버는 라우터 노드를 이용하여 수집한 엔드 노드의 데이터 중 배터리 사용 상태 데이터를 이용하여 엔드 노드의 잔존 전류량을 연산하는 단계, 원격 검침 서버는 현재 시점이 엔드 노드의 주요 활동시간에 속하면 잔존 전류량을 이용하여 제1 폴링 주기를 연산하고, 주요 활동시간에 속하지 않으면 기 저장된 최대 폴링 주기를 선택하는 단계, 및 원격 검침 서버는 엔드 노드의 폴링 주기가 갱신되도록, 제1 폴링 주기 또는 최대 폴링 주기를 라우터 노드로 전송하는 단계를 포함하는 엔드 노드의 폴링 주기 제어 방법을 제공한다. 이를 통해 엔드 노드의 폴링 주기를 상위에서 조정할 수 있고 엔드 노드의 배터리 수명을 극대화할 수 있다.
摘要:
An electronic circuit and method for measuring currents during charging and discharging of a secondary battery (307) are disclosed having a secondary battery (307), at least one shunt (312, 313) for determining the electrical current during charging and/or discharging of the secondary battery (307) by measuring the voltage drop over the shunt (312, 313), a switchable electrical load (305), two connectors (302 and 303) for connecting a preferably switchable power supply (304) to the electronic circuit (301) for charging the secondary battery (307) and a voltage measuring device (310). A first shunt (313) is connected in series between the electrical load (305) and the secondary battery (307), and a second shunt (312) is connected in series between one of the two connectors (303) for connecting the power supply (304) and the secondary battery (307), wherein the first shunt (313) and the second shunt (312) are connected to the same one of the two battery terminals of the secondary battery (307), and in that the voltage measuring device (310) comprises only one voltage tapping connected to the electrical conduit between the first shunt (313) and the switchable electrical load (305) and measuring the electrical potential with respect to ground, as defined by the ground potential of the voltage measuring device (310).
摘要:
Um eine Schaltungsanordnung (100) sowie ein Verfahren zum Steuern und Messen eines Stroms (IL) in mindestens einem Lastelement (101), insbesondere in mindestens einer Laserdiode, zu schaffen, die bei einer niedrigen Betriebsspannung mit Laserstromregelung und/oder mit geringem Spannungsabfall einsetzbar ist, also für sogenannte "Low-Power"- Anwendungen geeignet ist, wird vorgeschlagen, drei MOSFETs (102,104,108) für einen Lastpfad (103) und zwei Messpfade (106,110) anteilig zu paaren und über einen Hilfsregler (107) am selben Arbeitspunkt zu halten, so dass sie den Modulationsstrom und in festem Verhältnis dazu stehende Vergleichsströme (11,12) liefern. Die Vergleichsströme werden zur Bestimmung des mittleren Modulationsstroms genutzt und speisen eine Regeleinrichtung (123), die diese - und damit auch den mittleren Modulationsstrom - auf einen Sollwert bringt, indem eine Betriebs- oder Steuerspannung (VA.VB) an einem Schaltungsblock (114) durch die Regeleinrichtung variiert wird. Der Schaltungsblock liefert dabei in der Amplitude von der Betriebs- oder Steuerspannung abhängige Ausgangssignale (S1.S2), die zwei oder mehr Schaltelemente im Lastpfad und den Messpfaden ansteuern.
摘要:
A current sensor configured to be employed in an array of current sensors and an array of parallel connected current sensors is disclosed. In one embodiment the current sensors comprise integrated circuit current sensors and a plurality of the current sensors are connected in parallel in a number that is selected to at least accommodate the maximum magnitude of a current to be monitored. When configured in parallel as an array of sensors, at least one of the current sensors of the array of current sensors provides an output signal that represents an average of the currents measured by the plurality of current sensors in the array.
摘要:
The invention relates to a device (3) for measuring an electrical current comprising a printed circuit board (21), a sensor component (13) for detecting a current, in particular by detecting magnetic fields, said sensor component (13) being arranged on a surface of the printed circuit board (21) and comprising at least a first contact (15) and a second contact (17) for inputting and outputting the electrical current (l tot ) to be measured, the device (3) further comprising a first conducting element (23a) for con- ducting the current (l tot ) to the sensor component (13) and a second conducting element (23b) for conducting the current (l tot ) away from the sensor component (13), wherein a third conducting element (23c) is provided for electrically connecting the first conducting element (23a) with the second conducting element (23b), such that only a predetermined fractional amount of the electrical current (l tot ) can flow through the sensor component (13).
摘要:
A current sensor configured to be employed in an array of current sensors and an array of parallel connected current sensors is disclosed. In one embodiment the current sensors comprise integrated circuit current sensors and a plurality of the current sensors are connected in parallel in a number that is selected to at least accommodate the maximum magnitude of a current to be monitored. When configured in parallel as an array of sensors, at least one of the current sensors of the array of current sensors provides an output signal that represents an average of the currents measured by the plurality of current sensors in the array.
摘要:
본 발명은 LED 소자 검사장치에 관한 것으로서, 더욱 상세하게는 세라믹 플레이트에 실장된 LED 칩의 양품 여부를 검사하는 LED 소자 검사 장치에 관한 것이다. 본 발명에 의한 LED 소자 검사 장치는 세라믹 플레이트에 LED 칩을 실장 한 다음 불량여부를 바로 확인할 수 있어 세라믹 플레이트에 LED 칩을 실장하는 공정 중 발생할 수 있는 대량불량을 미연에 방지할 수 있어 생산 효율성을 높일 수 있다는 장점이 있다. 세라믹 플레이트의 LED 칩에 형광액을 도포하기 전에 LED 칩의 발광 여부를 먼저 검사해 양품 여부를 판단하고 불량으로 판단된 LED 칩에는 형광액을 도포하지 않을 수 있어 고가의 형광액을 효율적으로 사용할 수 있어 LED 소자의 가격 경쟁력을 높일 수 있는 장점이 있다.
摘要:
Die Erfindung betrifft ein Verfahren zum Ummanteln einer elektrischen Einheit, wobei die elektrische Einheit mit zwei Moldkörpern aus Kunststoffmaterial ummantelt wird. Die Erfindung betrifft des Weiteren ein elektrisches Bauelement, welches mittels eines solchen Verfahrens hergestellt wurde.
摘要:
본 발명은 발광 다이오드를 광원으로 이용하는 조명 장치를 개시하며, 상기 조명 장치는 정류 전압에 대응하여 발광하는 복수 개의 발광 다이오드 그룹을 포함하는 조명부, 상기 복수 개의 발광 다이오드 그룹의 발광에 대응하는 제1 전류 경로를 제공하며 상기 제1 전류 경로 상의 제1 구동 전류를 제한하는 제1 구동 회로 및 상기 복수 개의 발광 다이오드 그룹 중 일부의 발광에 대응하는 제2 전류 경로를 제공하고 상기 제2 전류 경로 상의 제2 구동 전류를 제한하는 하나 이상의 제2 구동 회로를 포함한다.
摘要:
The invention relates to an accessory device assembly for low or medium voltage electric applications. The accessory device comprises a casing and electronic means including one or more current sensors configured to detect a current flowing in an electric cable. The top shell of the casing comprises an external recess having a cable seat for accommodating said electric cable in a transversal position with respect to said casing. The cable seat has a cable coupling surface adapted to mechanically couple with the electrical cable. The accessory device comprises a holder element mechanically coupleable with said top shell in said external recess. The holder element comprises one or more holding surfaces. Each of said holding surfaces is overlapped and mechanically coupled with said electric cable, when said holder element is positioned in said external recess in a corresponding accommodating position that is selectable depending on the size of said electric cable. Each of said holding surfaces, when overlapped and coupled with said electric cable, cooperates with said cable coupling surface to hold said electric cable in a given position with respect to said current sensors.