JPH07220129A - Antenna device - Google Patents

Abstract

PURPOSE: To provide an antenna system which can distinctively and positively take in pieces of information of communication rings of plural carrier pigeons which come flying. CONSTITUTION: The antenna system is mounted in front of a dovecote. The antenna system has a board 1 where plurality of loop antennas are arranged, side by side. Each loop antenna is connected to an evaluating circuit. A carrier pigeon walks on an area 4 toward the dovecote, as shown by an arrow 3. These areas 4 correspond to antenna fields formed by the individual loop antennas. The respective areas 3 are partitioned by rotatable rollers 2 provided on the board 1. A pigeon which comes flying, when entering the dovecote, lands on a right or left area 4 after losing balance on perching on the roller 2, so it passes through one of the areas 4 without fail.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device for taking in information stored in a storage unit of a communication ring of a carrier pigeon.

[0002]

2. Description of the Related Art A known antenna device used as an antenna for detecting arrival of a flying pigeon has a loop antenna having a rectangular cross section and having a plurality of turns. This antenna device is provided in the front part of the pigeon, and when the pigeon enters the pigeon, it walks on the loop antenna arranged on the board. By doing so, the antenna field can take in the information stored in the storage unit of the communication ring of the carrier pigeon. If there is more than one carrier pigeon in the antenna field, the information of only the first carrier pigeon that arrives is captured by the antenna field, and the information from other carrier pigeons is not read or is not captured. Therefore, the arrival time of the carrier pigeon may be erroneously determined.

[0003]

In order to solve such inconvenience, it is known that a plurality of loop antennas are arranged side by side on a board. On the board, an attachment is mounted which has a plurality of partitions rising from the board in the upward and forward directions and provided between the loop antennas. The roof is installed on the partition. This allows only one pigeon to pass between two adjacent bulkheads at a time, so that only the information of one pigeon is captured by the loop antenna located below it. Here, each loop antenna is wound multiple times. Providing attachments consisting of bulkheads and roofs is a laborious task that is not acceptable to carrier pigeons and their breeders. In addition, such a board is short for flying carrier pigeons due to the provision of partition walls and roofs, and it is difficult for the carrier pigeons to land, and as a result, carrier pigeons often stop next to the pigeon.

The present invention has been made in order to solve such a problem, and provides an antenna device capable of reliably capturing only information from one carrier pigeon communication ring at any time. With the goal.

[0005]

SUMMARY OF THE INVENTION An antenna device according to the invention has, on a board with loop antennas, a plurality of sections of the antenna field formed by the loop antennas, these sections being on the board. It is characterized in that it is formed by a rotatable roller arranged.

[0006]

According to the present invention, when a flying pigeon stops on any of the rotatable rollers, the pigeon loses its balance and lands on any section of the board. This allows
Flying pigeons can always land in one section. Since each of these sections corresponds to a separate antenna field that picks up information from the dove's communication ring, even if multiple doves fly in competition, they can be distinguished and the information retrieved. In addition, the configuration using this roller has a structure in which a pigeon is more likely to stand down than when an attachment having a partition wall described in the related art is used.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1, the board 1 has four areas, and a pair of antennas is incorporated in each of the areas. The antenna arrangement is shown in FIG. When the carrier pigeon arrives, it advances in the direction of arrow 3 toward the pigeon house. This causes the code information of the carrier ring of the carrier pigeon to be captured by the antenna field and sent to the evaluation circuit.

The four regions shown are bounded by three rotating rollers 2 whose axes are oriented in the direction of arrow 3. When a pigeon stops on one of these rollers, the pigeon loses its balance and simply lands on one of the areas 4 and enters one antenna field.

As shown in FIG. 2, two bearing blocks 5 are provided for each roller on the upper part of the board, and a vertical groove 6 is formed in each block. An end of a bearing rod 7 inserted into two bearings 8 mounted in the tube is snap-fitted into the vertical groove 6.
These bearings 8 are arranged away from the ends of the tube 2. The rod 7, the tube 2 and the bearing 8 are made of a non-corrosive material. The bearing 8 is press-fitted into the tube 2. This structure is strong against mud and the like, and since the rod 7 can be easily removed from the board, it is easy to clean the board and rollers.

In the embodiment shown in FIG. 2, the upper part and the lower part of the antenna board 1 are connected to the support board 11 by the padlock 9.

The antenna device comprises a housing upper part 19 with rollers 2, a housing lower part 19 and a printed circuit board 12 arranged between them. The latter is provided with at least two loop antennas 14 and 15 arranged in the front and back along the direction of arrow 3 on the pigeon side. Therefore, when there are four regions 4, four sets of loop antennas 14 and 15 are arranged side by side. Each loop antenna 1
4, 15 are separately connected to the evaluation circuit. The antenna frequency spans the MHz band. In this way, the loop antennas 14, 15 can be formed by printed circuits or windings. The set of all two loop antennas 14 and 15 is respectively printed circuit board 12
Above, one antenna pair is formed along the direction of arrow 3. These loop antennas 14 and 15 are each formed in a rectangular shape, more preferably a square shape.

The landing pigeon descends on the portion of one loop antenna and travels on one of the loop antennas 14 in the direction of arrow 3 on the pigeon side. Another pigeon can land on the loop antenna 15 of the antenna pair while the pigeon is walking on the loop antenna 14. As described above, the information stored in the communication ring of the carrier pigeon is obtained by the loop antennas 14 and 15 both when the carrier pigeon gets on the loop antenna 15 and when it walks on the loop antenna 14. It is taken in and fed to the evaluation circuit. Then, the evaluation circuit associates the first information fetched from the storage unit of the carrier ring of the carrier pigeon with the arrival time, but does not correlate the information fetched from the same storage unit thereafter with the arrival time. Therefore, even when a plurality of pigeons fly such as when young pigeons compete with each other, the information first captured in time from one specific storage unit is evaluated in association with the arrival time. According to the antenna configuration selected in this way, one loop antenna 14 and 15
Only one information item is read at a time.

If a third loop antenna is added to the pair of loop antennas 14 and 15, a further safety measure can be taken.

In the structure shown in FIG. 4, a screen 10 is arranged on the board 1. Screen 10
It is formed of a transparent plastic material, and each of the regions 4 is provided with a passage opening 16. The screen 10 further has a cutout 17 for the roller 2. The screen 10 is provided in the area of the loop antenna 14. The front area of the screen 10 is an area where the pigeon lands and stops. Each pigeon then passes through the opening 16 and reaches the pigeon. Two pigeons stop in the front area of the screen 10 at the same time, so that the loop antenna 1
Even if it is difficult to distinguish (identify) pigeons depending on 5, the loop antenna 14 can accurately distinguish one pigeon when passing through the opening 16. According to the configuration thus selected, the antenna field of the loop antenna 14 does not simultaneously capture information from two pigeons.

In the case of the configuration shown in FIG. 5, the screen 10
Is set to be inclined upward toward the pigeon. In this example, the front region 4 of the screen 10 has an effect of being visually widened. The screen 10 and the board 1 are supported by the frame 18.

As shown in FIG. 6, the antenna board 1
All may be placed on the support board 11 and screwed there. If a padlock 9 is used, the mounting structure of this board 1 is anti-theft.

Under the support board 11, two fixing rods 22 of the frame 18 extend, and correspondingly, U-shaped and V-shaped grooves are formed in the lower portion of the support board 11. The support board 11 is screwed to the fixing rod. The support board 11 may also be fixed to a flat surface.

The advantage of using the support board 11 is that it can be applied very well to different carrier pigeon fly arrival systems and that the carrier pigeon breeder can easily mount the board 1. During the off-season, the board 1 can be easily removed and stored safely.

FIG. 7 shows another embodiment of the bearing of the roller 2. The bearing block 5A has a stud 20 that engages with the bearing 8 in this example. In the case of this embodiment, the bearing block 5A is the upper portion 19 of the antenna board 1.
Fixed to.

[0021]

As described above, according to the present invention,
Information from a plurality of carrier pigeons that have arrived can be accurately associated with each carrier pigeon and read. Moreover, the antenna device according to the present invention has a structure in which the carrier pigeon is easy to land because the sections on the board are formed by the rollers. The present invention also has the advantages that the device configuration is relatively simple, and that it is convenient and easy to handle.

[Brief description of drawings]

FIG. 1 is a perspective view showing a board of an antenna device according to the present invention.

FIG. 2 is a perspective view showing a board in a modified example of the antenna device according to the present invention.

FIG. 3 is a plan view of the lower part of the board for explaining the operation of the pair of antennas in the antenna device according to the present invention.

FIG. 4 is a perspective view of a board including a screen in the antenna device according to the present invention.

FIG. 5 is a perspective view of a board with another screen and frame.

FIG. 6 is a perspective view for explaining a board and a support board in the antenna device according to the present invention.

FIG. 7 is a diagram showing a modified example of a support portion of a roller in the antenna device according to the present invention.

[Explanation of symbols]

1 board, 2 rollers, 3 arrows, 4 areas, 5 bearing blocks, 6 vertical grooves, 7 bearing rods, 8 bearings,
9 padlocks, 10 screens, 11 support boards, 1
2 Printed circuit board, 14, 15 loop antenna, 16 openings, 17 notches, 18 frame, 20
Studs, 22 fixed rods.

Claims (14)

[Claims] 1. A storage unit of a communication ring of a carrier pigeon, which is mounted on a front part of a pigeon house, has a plurality of loop antennas which are walked on the carrier pigeon when the carrier pigeon enters the pigeon house, and is connected to an evaluation circuit. An antenna device for retrieving information stored in, wherein a board having the loop antenna has a plurality of sections of an antenna field formed by the loop antennas, the sections being on the board. An antenna device formed by a rotatable roller arranged. 2. The antenna device according to claim 1, wherein the roller has a tube, and two bearings are arranged inside the tube at a distance from both ends of the tube, and the tube has the bearing. An antenna device in which a bearing support portion of a board is inserted. 3. The antenna device according to claim 2, wherein the bearing support portion includes a rod that engages with the board. 4. The antenna device according to claim 2, wherein the bearing support portion includes a stud provided on a bearing block of the board. 5. The antenna device according to claim 3, wherein the board has two bearing blocks for each roller, and the bearing blocks have vertical receiving grooves into which the ends of the rods are snap-fitted. An antenna device comprising: 6. The antenna device according to any one of claims 1 to 5, wherein a screen having an opening for a pigeon to pass through is arranged on a board next to the pigeon house. apparatus. 7. The antenna device according to claim 6, wherein the screen is made of a transparent plastic material. 8. The antenna device according to any one of claims 1 to 7, wherein at least two loop antennas are arranged in front and rear along a direction toward the pigeon to constitute one antenna pair. And antenna device. 9. The antenna device according to claim 8, wherein a plurality of pairs of the antennas are arranged side by side in a direction transverse to a direction toward the pigeon. 10. The antenna device according to claim 8 or 9, wherein the loop antenna is formed as a printed circuit or a winding on a printed circuit board. 11. The antenna device according to claim 7, wherein the screen having an opening for a pigeon to pass through is arranged in a loop antenna region of the pigeon side of the antenna pair. An antenna device characterized by being provided. 12. The antenna device according to claim 7, wherein the screen has a cutout portion for the roller. 13. The antenna device according to any one of claims 8 to 12, wherein a support board is disposed below the board, and the support board is screwed to the board. Antenna device. 14. The antenna device according to claim 13, wherein the board is placed on the support board, and the board and the support board are connected by a padlock.