Temperature monitoring device

• US 7,336,202 B2
• Filed: 04/17/2002
• Issued: 02/26/2008
• Est. Priority Date: 04/17/2001
• Status: Expired due to Fees

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Kawai, Sigekazu, Ishikura, Tsutomu
• Primary Examiner(s): Hofsass; Jeffery
• Assistant Examiner(s): Yacob; Sisay
• Application Number:
  US10/475,005
• Publication Number:
  US 20040178925A1
• Time in Patent Office: 2,141 Days
• Field of Search: 340/870.17, 340/538, 340/870.18, 340/870.07, 340/657, 340/870.16, 361/28, 361/29, 361/42, 361/59, 324/133, 324/424, 324/134, 320/106, 320/107
• US Class Current: 340/870.17
• CPC Class Codes: G01K 1/02 Means for indicating or recording specially adapted for thermometers

Abstract

Temperature measurement data obtained by measuring the temperature of a cable clamp (31) by a temperature sensor (320) is radio-transmitted from a temperature sensing unit (32) at a predetermined timing, and the radio-transmitted temperature measurement data is received by a receiving station (5), classified by the temperature sensing unit number, and stored in a temperature measurement data storage area (502A). The temperature measurement data transmitted from twelve temperature sensing units (32) can be received by one receiving station (5).

Claims

1. A temperature monitoring device, comprising:

data transmitting means that includes a temperature sensor to measure temperature of a monitored object, and a substrate positioned in a plane that intersects the power supplying direction of a transmission line, said data transmission means transmitting wirelessly a temperature measurement data based on said temperature;

data storing means that receives said temperature measurement data being transmitted wirelessly and stores said data into a storing region; and

data acquiring means that outputs a read command of said temperature measurement data to said data storing means to acquire said temperature measurement data to said data storing means to acquire said temperature measurement data from said storing region.

2. The temperature monitoring device according to claim 1, wherein said data transmitting means includes an identification number storing section that stores an identification number to distinguish said data transmitting means from the other data transmitting means, and a calculation section that calculates a transmission timing of said temperature measurement data including said identification number based on said identification number.

3. The temperature monitoring device according to claim 1, wherein said data storing means transmits wirelessly said temperature measurement data based on said read command transmitted wirelessly from said data acquiring means.

4. The temperature monitoring device according to claim 1, wherein said data storing means transmits wirelessly said temperature measurement data through a signal line based on said read command sent through said signal line from said data acquiring means.

5. The temperature monitoring device according to claim 1, wherein said data storing means includes a protocol control section that controls a communication protocol used to connect with a communication network.

6. The temperature monitoring device according to claim 1, wherein said data acquiring means comprises one of a personal computer, a mobile phone and PDA (personal digital assistant) that can control a communication protocol used to connect with a communication network.

7. The temperature monitoring device according to claim 1, wherein said data acquiring means receives said temperature measurement data being wirelessly transmitted from said data transmitting means.

8. The temperature monitoring device according to claim 1, wherein said substrate comprises:

a semiconductor circuit unit for performing a temperature measurement operation; and

a wireless communication circuit.

9. The temperature monitoring device according to claim 8, wherein said wireless communication circuit serves as an antenna to transmit radio waves.

10. The temperature monitoring device according to claim 1, wherein said data transmitting means further includes:

a semiconductor device that has a control circuit to control power supplied to the data transmitting means.

11. The temperature monitoring device according to claim 1, wherein said data transmitting means further includes:

a memory that stores data for temperature measurement and data for a transmission operation.

12. The temperature monitoring device according to claim 1, further comprising:

a watertight section, said data transmitting means being positioned in said direction vertical to said power supply direction of said transmission line inside in said watertight section.

13. A temperature monitoring device, comprising:

a wireless communication section comprising a substrate having a surface positioned in a to plane that intersects the power supplying direction of a transmission line, said substrate surface comprising;

a circuit that performs a temperature measurement operation;

a circuit that performs wireless communication;

a circuit that controls power supplied to said wireless communication section; and

a memory that stores data for temperature measurement and wireless communication;

a temperature sensor section comprising a power supply, a semiconductor chip with a temperature sensor, and a thermal conduction member; and

a watertight section that houses said wireless communication section and a portion of said temperature sensor section.

14. The temperature monitoring device according to claim 13, wherein said temperature sensor section is detachably connected to said temperature monitoring device.

15. The temperature monitoring device according to claim 13, wherein said circuit for performing wireless communication further comprises an antenna for wireless transmission.

16. The temperature monitoring device according to claim 13, wherein the semiconductor chip with said temperature sensor stores a specific temperature sensor ID and an initial temperature detector number.

17. A temperature monitoring device, comprising:

a temperature sensor section to measure the temperature of a transmission line;

a sensor ID storage to store a temperature sensor ID and a temperature detector number of said temperature sensor section;

a power supply section to control power to said temperature monitoring device;

a control section to calculate results from said temperature sensor section;

a storing section to store time data of temperature measured interval, time data of transmission interval, and calculation results from said control section; and

a transmission section to wirelessly transmit temperature measurement data through a transmission antenna, said transmission section including a substrate positioned in a plane that intersects the power supplying direction of a transmission line.

18. The temperature monitoring device according to claim 17, wherein said temperature sensor section is detachably connected to said temperature monitoring device.

19. The temperature monitoring device according to claim 17, wherein said control section comprises:

a clock circuit to perform clock operations by counting a clock signal generated by a reference clock generator; and

a data input/output section to connect with an external terminal device.