JPH07303430A - Transponder for managing individual livestock - Google Patents

Abstract

PURPOSE:To provide a transponder for managing individual livestock and enabling the accurate measurement of the body temperature of individual livestock. CONSTITUTION:Since a transponder 1 embedded in the body of a livestock is maintained to the body temperature of the livestock, the body temperature can be determined by a temperature sensor 13 built-in the transponder. The transponder 1 transmits the temperature information detected by the temperature sensor 13 together with an ID code when accessed by an interrogator 2. The body temperature of individual livestock can be controlled by reading the ID code and the temperature information by the interrogator 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an individual management transponder embedded in a livestock to be managed.

[0002]

In order to utilize livestock for grazing, fattening and milking, it is necessary to identify each animal individually. Therefore, conventionally, the transponder in which the ID code is written is inserted into the body of the livestock with a special insertion jig.

In a livestock management method using a transponder, an interrogator is brought close to a site where the transponder is buried, an ID code is read out, and an individual is identified based on the ID code. Specifically, it is used to install an interrogator near the food tank to identify the individual who ingested the food and manage the intake amount, and to install an interrogator near the scale to manage the weight of each individual. .

[0004]

The health of livestock can be managed to some extent by controlling food intake and weight, but it is desirable to measure body temperature in order to detect abnormalities at an early stage.

However, under the present circumstances, it is difficult to measure an accurate body temperature for each individual. An object of the present invention is to provide an individual management transponder that can contribute to the realization of accurate body temperature measurement for each individual.

[0006]

The individual management transponder of the present invention is a transponder embedded in the body of a livestock to be managed, and is written when the temperature sensor is attached and the transponder is accessed by an interrogator. It is characterized in that it is configured to transmit the ID code present and the temperature information detected by the temperature sensor.

[0007]

According to this structure, the transponder embedded in the body of the livestock is kept at the body temperature of the livestock, so that the temperature sensor incorporated in the transponder detects the body temperature of the livestock. When accessed by the interrogator, the transponder transmits the temperature information detected by the temperature sensor and the ID code. Therefore, the body temperature of the individual can be managed by reading the ID code and the temperature information with the interrogator.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The transponder 1 of the present invention is constructed as shown in FIG. Antenna 3 of interrogator 2
The signal radiated from the antenna is the antenna 4 of the transponder 1.
Will be received at. The signal received by the antenna 4 is converted into a DC voltage by the rectifying / smoothing unit 5 to cover the power consumption of the electronic circuit of the transponder 1. Further, the signal received by the antenna 4 is frequency-divided by the frequency divider 6 and outputs various clock signals having a period required inside the transponder 1. The shift register 7 is a parallel-in / serial-out type, which reads the ID code written in the memory unit 8 and the temperature information of the temperature measuring unit 9 and outputs the read data to the modulating unit 10. The modulator 10 shifts the carrier of a specific frequency different from the transmission frequency of the interrogator 2 to the shift register 7
The data is modulated on the basis of the data from and transmitted from the antenna 4 to the interrogator 2.

In the transponder 1, as shown in FIG. 2, an antenna 4, an electronic circuit 12 and the temperature sensor 13 are enclosed in an outer capsule 11 made of glass. Specifically, a temperature sensitive resistance element can be used as the temperature sensor 13. In this case, the silicone resin 14 is filled in the outer capsule 11 as a heat conductive material having good heat conductivity.

The temperature measuring unit 11 which outputs temperature data based on the temperature sensor 13 is constructed as shown in FIG. The temperature measuring unit 13 includes first and second oscillating units 15 and 16, first and second counters 17 and 18, a gate 19 and a timing circuit 20. 4A to 4D show waveform diagrams of A to D shown in FIG. 3, respectively.

The oscillating frequency of the first oscillating unit 15 generates the first clock signal A having a constant cycle without temperature dependency.
The oscillation frequency of the second oscillator 16 generates the second clock signal C whose oscillation frequency changes according to the output of the temperature sensor 13. The first clock signal is divided by the first counter 17 by the control signal of the timing circuit 20 to determine the gate time of the AND gate 19. The second clock signal is counted by the second counter 18 over the opening time of the AND gate 19, and the count value of the second counter 18 becomes temperature data.

Due to this structure, the temperature sensor 13
Is thermally coupled to the livestock through the silicone resin 14 and the outer capsule 11, and the temperature sensor keeps the body temperature of the livestock. Therefore, the interrogator 2 and the transponder 1
Access, the electronic circuit 12 of the transponder 1 starts operating, the count value of the second counter 18 becomes temperature information of the body temperature of the livestock, which is transferred to the shift register 7 and transmitted to the interrogator 2 together with the ID code. . In the interrogator 2, the demodulation unit 20 demodulates and sends the demodulated data to the data collection unit 21, and the body temperature of the individual is managed for each ID code.

Further, since the temperature sensor 13 is thermally coupled to the object to be managed through the silicon resin 14, accurate temperature detection can be realized. In the above embodiment, the temperature measuring unit 9
Although the first oscillating unit 15 and the first counter 17 are provided in the above, the reliability of the temperature information can be expected to be improved by obtaining the signal for the gate time in the frequency dividing unit 6.

[0014]

As described above, according to the present invention, the transponder is embedded in the body of the livestock to be managed, and the temperature sensor is attached to the transponder, and the ID code written when the transponder is accessed by the interrogator. Since the temperature information detected by the temperature sensor is transmitted, the temperature can be accurately measured for each individual and the change in weight of each individual can be easily managed by reading with the interrogator.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an individual management transponder of the present invention.

FIG. 2 is an enlarged cross-sectional view of the transponder of the same embodiment.

FIG. 3 is a configuration diagram of a temperature measuring unit of the embodiment.

FIG. 4 is a waveform diagram of a main part of the temperature measuring unit of the embodiment.

[Explanation of symbols]

 1 Transponder 2 Interrogator 8 Memory Section 9 Temperature Measurement Section 10 Modulation Section 11 Exterior Capsule 12 Electronic Circuit 13 Temperature Sensor 14 Silicon Resin

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Claims (2)

[Claims] 1. A transponder embedded in the body of a livestock to be managed, which is provided with a temperature sensor, and which, when accessed by an interrogator, displays a written ID code and temperature information detected by the temperature sensor. An individual management transponder configured to transmit. 2. The individual management transponder according to claim 1, wherein an electronic circuit and a temperature sensor are enclosed in the outer capsule, and a heat conductive material having good heat conduction is interposed between the outer capsule and the temperature sensor.