[특허]Optical sensor for utility meter

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G08B-023/00
출원번호	US-0896502 (2001-06-29)
발명자 / 주소	Holowick, Erwin
출원인 / 주소	Datamatic, Inc.
대리인 / 주소	Jackson Walker LLP
인용정보	피인용 횟수 : 51 인용 특허 : 20

초록 ▼

A radio frequency automated meter reading (AMR) device for determining quantities of a consumed utility product including electric, gas and water service. The present invention intermittently transmits utility product consumption as a modulated RF signal, and does not require complex polling and bi-

A radio frequency automated meter reading (AMR) device for determining quantities of a consumed utility product including electric, gas and water service. The present invention intermittently transmits utility product consumption as a modulated RF signal, and does not require complex polling and bi-directional communication. Data is obtained and formatted for transmission and is adapted to be received by a remote receiving device having an RF receiver. The present invention is adaptable to water meters, gas meters and electric meters, and has an IR programming module facilitating remote programming and diagnostic procedures. In the case of water and gas meters, an internal lithium battery provides an operational life of up to ten years. In the case of the electric meter, power is tapped directly from the electric service.

대표청구항 ▼

1. A device for coupling to a meter measuring a quantity and time of delivered product, comprising:an interface module adapted to couple to the meter, the interface module providing a first signal indicative of the measured quantity;a wireless transmitter, responsively coupled to the interface modul

1. A device for coupling to a meter measuring a quantity and time of delivered product, comprising:an interface module adapted to couple to the meter, the interface module providing a first signal indicative of the measured quantity;a wireless transmitter, responsively coupled to the interface module, modulating and transmitting the first signal as an RF signal at a user selectable transmission interval, at a power level no greater than 1 mW and at a frequency in an unlicensed frequency band, adapted to reduce interference in the unlicensed frequency band without requiring external polling and without the assistance of a wireless communications network; anda profile module having a transceiver and a controller receiving the first signals, the profile module creating and storing usage profile data as a function of the measured quantity, wherein the usage profile data is generated at a profile data interval and is adapted to be obtained by a remote user via the transceiver. 2. The device as specified in claim 1 wherein the profile data intervals is user selectable. 3. The device as specified in claim 2 wherein the profile data interval is substantially longer than the transmission interval. 4. The device as specified in claim 3 wherein the wireless transmitter transmits the modulated first signal at a fixed frequency. 5. The device as specified in claim 1 wherein the profile data interval is adapted to be selectively adjusted by a field technician. 6. The device as specified in claim 1 wherein the controller is adapted to be wirelessly polled by a remote user via the transceiver. 7. The device as specified in claim 1 wherein the device includes an internal battery and operates therefrom. 8. The device as specified in claim 6 wherein the transceiver is an IR transceiver.

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