Wireless remote control measuring multipurpose meter

• US 7,075,289 B2
• Filed: 07/27/2004
• Issued: 07/11/2006
• Est. Priority Date: 07/27/2004
• Status: Active Grant

• Current Assignee: Der Ee Electrical Instrument Co., Ltd.
• Original Assignee: Der Ee Electrical Instrument Co., Ltd.
• Inventors: Chen, Chieh-Te
• Primary Examiner(s): HOLLINGTON, JERMELE M
• Application Number:
  US10/898,944
• Publication Number:
  US 20060022663A1
• Time in Patent Office: 714 Days
• Field of Search: 324/142
• US Class Current: 324/142
• CPC Class Codes: G01R 13/00 Arrangements for displaying electric variables or waveforms
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

The present invention discloses a wireless remote control measuring multipurpose meter, which comprises a signal transmitter, a signal receiver, and a signal converter for converting a measured signal into a readable digital signal. The digital signal is transmitted to the signal receiver by a wireless transmission method and then the digital signal is displayed to improve the convenience for the practical utility of the product and enhance the safety of the measuring operation.

Claims

1. A wireless remote control measuring multipurpose meter comprising:

a signal transmitter portion for selectively measuring each of multiple characteristic quantities of an object external thereto, said measuring transmitter portion including;

a measuring unit producing a signal corresponding to a measured one of said multiple characteristic quantities, said measuring unit being selectively separated from or coupled to said external object; and

a high-frequency signal transmitter coupled to said measuring unit, said high-frequency signal transmitter modulating said signal for transmission and transmitting said modulated signal; and

a signal receiver portion physically removed from said signal transmitter portion and receiving said transmitted modulated signal, said receiver portion including;

a demodulator demodulating said modulated signal to reproduce said signal; and

a display for displaying a value corresponding to said measured one of said characteristic quantities as determined from said reproduced signal.

2. The wireless remote control measuring multipurpose meter as recited in claim 1, wherein said signal receiver portion includes an output terminal for providing said reproduced signal thereat.

3. The wireless remote control measuring multipurpose meter as recited in claim 1, wherein said signal transmitter portion includes a select switch for selecting a characteristic quantity from said multiple characteristic quantities.

4. The wireless remote control measuring multipurpose meter as recited in claim 3, wherein said multiple characteristic quantities include electrical current, electrical voltage, electrical resistance, electrical capacitance and electrical inductance.

7. The wireless remote control measuring multipurpose meter as recited in claim 1, wherein said external object is an electrical circuit external to said signal transmitter portion.

8. The wireless remote control measuring multipurpose meter as recited in claim 1, wherein said signal transmitter portion includes a display operable to display said value corresponding to said measured one of said characteristic quantities.

5. A wireless remote control measuring multipurpose comprising:

a measuring unit operable to measure a characteristic quantity of an external object and to produce a signal corresponding thereto, said measuring unit including a current measuring clamp for selectively coupling to said external object;

a signal transmitter coupled to said measuring unit and operable to modulate said signal for transmission and further operable to transmit said modulated signal;

a signal receiver physically removed from said measuring unit and operable to receive said transmitted modulated signal and further operable to demodulate said modulated signal to reproduce said signal; and

a display coupled to said signal receiver for displaying a value corresponding to said characteristic quantity as determined from said reproduced signal.

6. A wireless remote control measuring multipurpose meter comprising:

a measuring unit operable to measure a characteristic quantity of an external object and to produce a signal corresponding thereto, said measuring unit including a measuring terminal for detachably coupling measuring conductors selectively coupled to said external object;

a signal transmitter coupled to said measuring unit and operable to modulate said signal for transmission and further operable to transmit said modulated signal;

a signal receiver physically removed from said measuring unit and operable to receive said transmitted modulated signal and further operable to demodulate said modulated signal to reproduce said signal; and

a display coupled to said signal receiver for displaying a value corresponding to said characteristic quantity as determined from said reproduced signal.