JP2011234668A - Sensor for detecting delivery and heat of livestock, detection device and detection method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that conventionally various devices and methods for detecting delivery information and heat information are disclosed, however, it has been difficult to determine delivery information or heat information with high accuracy in both the devices and the methods.SOLUTION: The sensor for detecting delivery and heat of livestock includes a three-dimensional acceleration sensor attached to a tail and a leg of livestock and measuring momenta of tail raising action, walking, etc., of livestock and a calculation unit recording and calculating acceleration data measured by the three-dimensional acceleration sensor in a time series. The calculation unit is formed to output a signal expressing at least delivery state or heat state of livestock and to radio-transmit the outputted signal by a transmitter. The device and the method for detecting delivery and heat of livestock use the sensor.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock delivery / estrus detection sensor that is attached to the tail and foot of livestock such as cows and detects the delivery status and estrus status of livestock, and a detection device and detection method using the same.

  Conventionally, there are free stall (free-range) and tie-stall (tethered) as methods for raising cattle. For each, various devices and methods are disclosed for detecting cattle labor and estrus. For example, a method and device for predicting the estrus / parturition date of a cow by attaching a wearable vibration meter to the leg, neck or chin of the cow, and analyzing the numerical value of the vibration. To generate intermittent vibration values, continuous vibration values, static or vibration stop values, etc., and transmit, input, and store these vibration numerical information to a centralized calculation device, and chart it into a chart such as a bar graph or line graph. Based on the analysis contents analyzed by the analysis function, the estrus of the cow is predicted by the estrus prediction function of the centralized calculation device, and the delivery date prediction after fertilization is predicted by the delivery date prediction function of the centralized calculation device. A method for predicting the date and time and a wearable estrus / parturition date and time prediction device used in the method are disclosed (for example, see Patent Document 1).

  Disclosed is a livestock birth management method and apparatus for judging the signs of water breakage during livestock birth based on color information from observation means for observing the vulva of livestock, with an optical sensor attached to the tail of the livestock. (For example, refer to Patent Document 2).

  In addition, a vibration detector that is attached to the foot and neck of livestock and detects and counts each vibration, a count data memory that stores count data consisting of a plurality of cumulative count values in time series, and walking and foraging There is disclosed a grazing management device that includes analysis means for analyzing time count data, and manages the health status of animals grazed by the amount of walking and the amount of food forage (see, for example, Patent Document 3).

  In addition, an acceleration sensor that detects acceleration of three axes orthogonal to each other and outputs each acceleration data, a data memory that stores each acceleration data in time series, and an analysis unit that is connected to the data memory and analyzes each acceleration data And a grazing management device and method for outputting a state signal representing at least a sleeping state or a running state of the animal every predetermined time. Reference 4).

JP 2003-325077 A JP 2002-095375 A Japanese Patent Laid-Open No. 10-213655 JP-A-10-295212

  The method for predicting the delivery date and time and the wearable estrus and delivery date prediction device used in the method described in Patent Document 1 are attached to the leg, neck or jaw of a cow, and the estrus of the cow is estrus of the centralized calculation device. The prediction function predicts the time of estrus, and the delivery date and time prediction after fertilization is predicted by the delivery date and time prediction function of the centralized calculation device.

  The childbirth management apparatus described in Patent Document 2 determines signs of water breakage at the time of birth of livestock based on color information from observation means that is attached to the tail of livestock and observes the vulva.

  Patent Document 3 is a management device particularly suitable for grazing, which is equipped with a vibration detector on the feet and neck of a cow, detects each vibration, and counts during walking and foraging from a plurality of cumulative count values. Analyzing data to manage animal health. Patent Document 4 is also a grazing management device, which outputs a state signal representing a sleeping state or a running state by mounting an acceleration sensor on the neck of a cow.

  However, the apparatuses shown in Patent Documents 1, 3 and 4 have not been widely used because of their poor accuracy and low reliability. In addition, the apparatus shown in Patent Document 2 has a problem that the optical sensor attached to the tail may be contaminated with feces and urine and the like, so that the accuracy of determining color information may be reduced, and the reliability is low.

  The present invention has been made in order to solve the above-described problems, and can determine the state of birth and estrus of a cow with high accuracy, and notify the alarm with an alarm attached to the cow even if it is located away from the cow. It is another object of the present invention to provide a livestock delivery / estrus detection sensor that can be quickly and easily known by a portable information terminal such as a mobile phone, and a detection device and detection method using the same.

  Regarding the calving of cattle, the forecast of the calving of cattle with remarkable tail rise is based on the following findings. That is, it is known that the number of times of raising the tail (hereinafter referred to as the number of tail raising) increases in cows that are approaching parturition. The present invention pays attention to this, and when the tail raising is detected by a three-dimensional acceleration sensor and the change in the number of tail raising is continuously collected in time series, the number of tail raising increases rapidly before delivery. It was grasped by many experiments over a long period of time that the signs of parturition appear. Since signs of labor appear several hours before labor, this characteristic is used to predict labor and notify livestock farmers. By using a three-dimensional acceleration sensor (X, Y, Z axes) to detect the number of tail lifts, it is possible to separate the tail behavior of flies following and the number of tail lifts associated with labor based on three-dimensional data. , The accuracy of detection of labor signs is improved.

  Regarding the calving of cattle, the prediction of the calving of cattle whose tail raising frequency is not remarkable is based on the following findings. That is, in many cattle, there are solids whose tail raising frequency does not change so much and the signs of labor are difficult to understand. In this case, it is detected by a single sensor as in the past, by detecting with a three-dimensional acceleration sensor attached to the foot such as the soft behavior of the cow (hereinafter referred to as “momentum”) and determining it together with the data of the number of times of raising the tail. Compared with the method to do, it became possible to detect the delivery sign with higher accuracy.

  Regarding the estrus of cattle, the estimator for free stall (free range) (for example, a pedometer on the foot, product name: cow walk) is well known, but in tystall (tethered keep) Since they are connected, the amount of exercise due to estrus is limited, and there is no means for accurately detecting estrus signs. Therefore, the inventor conducted an observation experiment on cattle over a long period of time, and ascertained that a phenomenon in which the amount of exercise and the number of tail-raising increases appears before estrus even in Tystall. However, since this phenomenon is not remarkable, it is difficult to detect it as estrus data even if a conventional pedometer is used.

  The inventor pays attention to the above and wears a 3D acceleration sensor on the foot to detect the amount of exercise, and also attaches a 3D acceleration sensor to the tail to detect the number of times the tail is lifted. By doing so, the inventors have invented an apparatus and a method for improving the accuracy of detecting estrus in cows that have been stalled. In addition, according to the experiment by the inventor, an increase in momentum (that is, an estrus sign) appears in many cows about 4 days before estrus. Therefore, a three-dimensional acceleration sensor is attached to the tail and the foot, and the number of times of raising the tail and the amount of exercise are continuously collected in time series and notified as estrus information.

  According to claims 1 and 6 of the present invention, the delivery / estrus detection sensor for livestock and the delivery / estrus detection method using the same are equipped with a three-dimensional acceleration sensor on the tail and foot of the cow, and the number of raising of the tail of the cow. It also measures the amount of exercise such as walking. Acceleration data measured by each three-dimensional acceleration sensor is recorded and calculated in time series by the calculation unit provided in the delivery / estrus detection sensor, and the result is output as a signal representing the calf's delivery state or estrus state. Then, the output signal is wirelessly transmitted by a transmitter.

  As described above, in the present invention, the three-dimensional acceleration sensor is attached to the tail and legs of the cow, the number of times of raising the tail and the amount of exercise are measured, and the respective delivery data are comprehensively determined to determine the delivery status of the cow. And the estrus situation can be determined with high accuracy. Conventionally, a method of attaching a sensor to a cow's neck, back, tail, or foot has been attempted to detect the calving status or estrus status. It is difficult to get a situation or estrus situation. As shown in the present invention, by attaching a three-dimensional acceleration sensor to the tail and foot of a cow and making a comprehensive determination by associating each measurement data, it is possible to accurately determine the calving status and the estrus status. Is possible.

  According to claims 2 and 7 of the present invention, the delivery / estrus detection sensor for livestock and the delivery / estrus detection method using the same are determined by the calculation unit with respect to the number of cows raising and the amount of exercise measured by the three-dimensional acceleration sensor. The frequency per hour is calculated, the delivery state or estrus state of the livestock is determined based on the number of the calculated values, a signal representing the determination result is output every predetermined time, and the output signal is transmitted by the transmitter. It is for wireless transmission. It has been found that the number of tails raised becomes prominent when calving approaches, and the amount of exercise such as walking becomes prominent when estrus approaches. Therefore, in the present invention, the number of tail lifts and the amount of exercise are measured by a three-dimensional acceleration sensor, the frequency per predetermined time is calculated by a calculation unit, and the results of each calculation are comprehensively determined. The delivery status and estrus status can be determined with high accuracy.

  According to claims 3 and 8 of the present invention, the delivery / estrus detection sensor for livestock and the delivery / estrus detection method using the same are provided with identification codes for identifying individual cattle and are output from the calculation unit. In addition, an identification code is added to the transmitted signal and wirelessly transmitted from the transmitter, and the display is driven by the signal output from the arithmetic unit so that a cow manager or the like can easily recognize the lighting state. As described above, in the present invention, it is possible to easily confirm from a remote place the identification of a cow that is bred in a stable or the like, and the alarm provided in the delivery / estrus detection sensor is a sound, voice or By notifying with light, the corresponding cattle can be easily confirmed.

  The delivery / estrus detection sensor for livestock shown in claim 4 of the present invention is attached to the tail and foot of the cow by mounting means. The cow's tail moves frequently due to excretion of excrement and flies, and the tail may be swung around with a strong force. It is firmly attached to the circumferential part orthogonal to the direction. In addition, since cows perform exercises such as walking, standing and sitting repeatedly, and soft movements, the delivery and estrus detection sensors attached to the feet will not come off even if they are touched by the ground or fence, or pressed by weight So that it is tightly wound around the foot by the mounting means. As a result, the delivery / estrus detection sensor of the present invention can be easily attached / detached, but does not come off by movement such as raising the tail of the cow or walking.

  The livestock delivery / estrus detection device according to claim 5 of the present invention includes a two-part delivery / estrus detection sensor in which a three-dimensional acceleration sensor, a calculation unit, a transmitter, and the like are integrally formed, and each delivery / estrus detection. Determine the cow's delivery status or estrus state by combining a receiver that receives the signal transmitted from the sensor and a combination of the calculated value of the number of cows raising the received signal and the calculated value of the momentum. It is comprised from the transmitter which transmits a control part and the determination result of a control part to the receiving terminal in the place where the screen display or it separated. Thereby, it becomes possible to easily recognize the delivery state or estrus state of the cow even in a place away from the cow.

  The measurement data measured by the two delivery / estrus detection sensors is wirelessly transmitted by the transmitter and transmitted from the receiver provided in the computer to the control unit. The control unit calculates and determines the delivery status and the estrus status, and this data is stored and accumulated for each cow (cow ID) and used as data for the next delivery and estrus determination. Thereby, as the number of times of delivery and estrus and the number of years increase, the data is updated by the learning function, so that the determination accuracy is remarkably improved.

  In the present invention, by attaching a three-dimensional acceleration sensor to the tail and feet of the cow, measuring the number of times the tail of the cow has been raised and the amount of movement such as walking, and comprehensively determining each measurement data together, It is possible to determine the calving status and estrus status with high accuracy. Further, since the identification code is added to the delivery / estrus detection sensor, it is possible to easily recognize the identification of the cows raised in a stable or the like from a remote location. Moreover, the corresponding cow can be easily confirmed by the alarm provided in the delivery / estrus detection sensor notifying by sound, voice or light.

  According to the present invention, since a delivery sign or an estrus sign can be detected 4 to 5 hours before delivery, a livestock farmer or the like can easily prepare for delivery or estrus. Therefore, it is freed from observing the cows at all times, and the loss of mother cows and calves due to breech and dystocia can be prevented. Moreover, the timing of seeding is not missed by accurate detection of the estrus time.

  The livestock delivery / estrus detection sensor of the present invention can be attached firmly to the circumference perpendicular to the longitudinal direction of the tail, or by contact with the ground or a fence, compression by weight, etc. A mounting means for firmly mounting on the foot is provided so as not to easily come off. As a result, the delivery / estrus detection sensor of the present invention can be easily attached and detached, and even if it is attached to the tail or foot of a cow, it does not come off by movement such as raising the tail or walking.

It is a block diagram of the delivery / estrus detection sensor of livestock of the present invention. 1 is a system configuration diagram of a livestock delivery / estrus detection device of the present invention. FIG. It is a chart which shows the tail raising action at the time of cattle delivery. It is a chart which shows the momentum at the time of cow estrus. It is a graph which shows a data change when the delivery / estrus detection sensor of the livestock of this invention is mounted | worn with the tail. It is a graph which shows a data change when the delivery / estrus detection sensor of livestock of this invention is mounted | worn on a leg | foot. 3 is an algorithm for determining the delivery status or estrus status of livestock according to the present invention. It is a perspective view which shows the state which mounted | wore the cow's tail and leg with the livestock delivery / estrus detection sensor of this invention. 1 shows a livestock delivery / estrus detection sensor (tail sensor) according to the present invention, in which (a) is a perspective view, and (b) is a view as seen from an arrow A in (a). It is the upper surface sectional drawing of the delivery / estrus detection sensor (tail sensor) of the livestock of this invention, (a) shows the insertion state, (b) shows the fastening state. It is the delivery / estrus detection sensor (tail sensor) of the domestic animal which shows other embodiment of this invention, (a) is a front view, (b) is a side view. It is operation | movement explanatory drawing of the delivery / estrus detection sensor (tail sensor) of the domestic animal which shows other embodiment of this invention, (a) is a closed state, (b) is an open state. FIG. 2 shows a livestock delivery / estrus detection sensor (foot sensor) according to the present invention, wherein (a) is a perspective view and (b) is an enlarged view for explaining a state of engagement of a belt.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments, and can be appropriately changed without departing from the scope of the invention.

  In FIG. 1, livestock delivery / estrus detection sensors 1 and 2 include a three-dimensional acceleration sensor 10, an A / D converter 20, a calculation / determination unit 30, an output unit 40, a notification device 50, a transmitter 60, and a battery 70. Has been. The three-dimensional acceleration sensor 10 is mounted on the tail or foot of a cow, measures body movements in the three-dimensional directions of front and rear, left and right, and top and bottom as vibration frequencies, and counts the vibration frequencies. The A / D converter 20 converts the frequency measured by the three-dimensional acceleration sensor 10, that is, an analog signal into a digital signal that can be processed by a computer, and is generally called A / D conversion (Analog / Digital Conversion). ing.

  The calculation / determination unit 30 calculates the frequency measured by the three-dimensional acceleration sensor 10 as the number of times per unit time (number of times of tailing or momentum), and the number of times per unit time is small, medium Judgment is made by dividing into large categories. The output unit 40 outputs the classified determination signal to the alarm device 50 and the transmitter 60.

  The notification device 50 notifies a livestock farmer or the like located at a distance away from the cow and has at least one notification function of sound, voice or light, and an LED is used for lighting or light emission by light. ing. Note that a configuration in which the alarm 50 is not provided is also possible. The transmitter 60 transmits a determination signal determined by dividing the number of times per unit time into small, medium and large, to the computer C at a remote location. The battery 70 is a power source for supplying electricity to each device constituting the livestock delivery / estrus detection sensors 1 and 2, and a button battery is mainly used. The livestock delivery / estrus detection sensors 1 and 2 are formed in a structure that allows the battery 70 to be easily replaced.

  In FIG. 2, the livestock delivery / estrus detection device 3 includes livestock delivery / estrus detection sensors 1, 2, a computer C, a mobile phone 37 and / or a dedicated receiver 38. The computer C is installed at a short distance from the livestock delivery / estrus detection sensors 1 and 2 (for example, within 100 m in the wireless LAN), and includes a central processing unit 31, a storage device 32, a display device 33, and a receiver. 34, a transmitter 35 and a notification device 36. Data converted into data including determination signals transmitted from the livestock delivery / estrus detection sensors 1 and 2 are received by the receiver 34 of the computer C by wireless transmission. The information converted into data is processed by the central processing unit 31 of the computer C, and the result is displayed on the display device 33, and the delivery state and the delivery state are notified by at least one of sound, voice or light by the alarm 36. Informed by function. On the other hand, the delivery status data and the delivery status data processed by the central processing unit 31 are wirelessly transmitted by the transmitter 35 to the mobile phone 37 and / or the dedicated receiver 38 (specifying the sound, voice or light notification function). Sent.

  Further, identification information is added to the livestock delivery / estrus detection sensors 1 and 2 in order to identify individual cattle. As the identification information, a known RFID tag 7 (not shown) is used. The RFID tag 7 is a radio frequency identification (Radio Frequency Identification) tag used in a data carrier system (mobile identification device). As the RFID tag 7, a known RFID tag in which an internal antenna and an IC chip are accommodated in a case is used. The shape of the RFID tag 7 to be used is not particularly limited and can be appropriately selected from various shapes such as a disk shape, a card shape, a cylindrical shape, etc., but is suitable for being attached to a cow's tail or foot. Is preferably used. An IC chip inside the RFID tag 7 contains an ID memory, a control circuit necessary for communication, etc., and an ID code unique to the cow to be attached is registered in the ID memory as cow identification information (illustrated). Not written).

  In FIG. 3, the vertical axis shows the tailing action (index), and the horizontal axis shows the number of days (hours). As shown in FIG. 3, the tail-raising behavior (index) in normal times is 0 to 3, but from 5 hours to just before delivery, the tail-raising behavior (index) increases to 5 to 20 and is a delivery sign. It was found that tailing behavior (index) increased dramatically to 40 at the time of delivery.

  In FIG. 4, the vertical axis indicates the amount of exercise (index), and the horizontal axis indicates the number of days. As shown in FIG. 4, the momentum (index) in normal times is 50 or less, but when there is a sign of estrus, the momentum (index) temporarily protrudes, and the momentum (index) continues during estrus. It was found that it protruded to 200 to 280. In addition, the signs 1 to 5 in the figure indicate signs of estrus, and the estrus indicates the time of estrus.

  In FIG. 5, the vertical axis represents the number of tails raised, and the horizontal axis represents time (elapsed). The free curve in the figure represents the number of tails raised per unit time connected by a curve. The curve was divided into three categories, small, medium, and large, depending on the number of tails raised, and it was found that there were signs of estrus in the middle region, and there were signs of childbirth in the large region.

  In FIG. 6, the vertical axis shows the number of steps and the number of times of going to sleep and waking up, and the horizontal axis shows time (elapsed time). The free curve in the figure represents the number of steps taken per unit time connected by a curve. The curve is divided into three categories, small, medium, and large, depending on the number of steps taken, etc., and there are signs of childbirth in the small region, signs of estrus or childbirth in the medium region, It was found that there were signs of estrus in the area.

  In FIG. 7, the amount of data of the delivery / estrus detection sensor (hereinafter referred to as the foot sensor) of the livestock attached to the foot and the delivery / estrus detection sensor (hereinafter referred to as the tail sensor) of the livestock attached to the tail are respectively small, It is divided into medium and large, and it is determined whether the child is in the birthing state or in the estrus state based on the combination of the amount of data of the foot sensor and the tail sensor.

Determination of delivery detection (see FIGS. 3 and 4).
1. Even though the tail is raised, the number of tails raised is small.
2. As parturition approaches, the number of tail lifts gradually increases.
3. This frequency becomes frequent from 4 to 5 hours before delivery.
4). Further, when the calving is near, the cows behave softly or sleep or wake up, and this body movement is detected by the foot sensor.
5). The accuracy of labor detection can be significantly increased by comprehensively determining the two data of the number of tail-raising and the amount of exercise such as soft behavior.

Estrus detection determination (see FIG. 4).
1. The amount of exercise increases from about 4 days before estrus, and estrus signs appear.
2. From a few hours before estrus, the momentum becomes very prominent.
3. There is clearly a significant difference between estrus signs and estrus data, and the estrus can be detected by the data.

  Based on the above, the determination as shown in FIG. 7 is performed. That is, if the foot sensor is small and the tail sensor is medium or large, the state of delivery, if the foot sensor is medium and the tail sensor is medium, the state of delivery or estrus, and the foot sensor is tail in the middle If the sensor is in the large category, it is determined as the delivery state, and if the foot sensor is in the large category and the tail sensor is in the small or medium category, it is determined as the estrus state.

  In FIG. 8, the tail sensor 1 is attached to the tail of the cow, and the foot sensor 2 is attached to the foot of the cow. The functions of the tail sensor 1 and the foot sensor 2 are substantially the same, but the structure of the mounting means is different. Hereinafter, the structure of the tail sensor will be described with reference to FIGS. The tail sensor 1 includes a main body part 11, a tail grip part 12, and a tightening ring 13. As shown in FIG. 9 (b), the main body portion 11 is made of reinforced plastic and is formed into a substantially oval shape (or a substantially circular shape, a substantially rectangular shape, etc.), and has a central portion for penetrating the tail T of the cow. A through hole 14 is provided. Further, since the tail sensor 1 is fouled by cow manure, the main body 11 has a waterproof structure. The storage portion 16 of the battery 70 has a structure that allows easy battery replacement.

  As shown in FIG. 9 (a), a substantially cylindrical tail gripping portion 12 is provided extending in parallel with the axial center of the through hole 14 provided in the main body portion 11 and having a common axial center and open at both ends. Has been. The tail holding portion 12 is made of reinforced plastic having flexibility, and a flange 15 is formed at the tip portion. A cylindrical fastening ring 13 described later is slidably fitted to the outer peripheral surface of the tail gripping portion 12. Has been. The tail holding part 12 is divided into two parts from the flange side except for the main body part 11, and two portions formed in the two parts are provided with tapered dividing grooves 17 in the axial direction. ing. Further, the thickness of the tail holding portion 12 is a taper shape that becomes thicker from the main body portion side toward the flange side, and the tightening ring 13 made of reinforced plastic is disposed on the flange side along the outer periphery of the tail holding portion 12. When it is slid, the tail gripping part 12 formed in half is pressed by the tightening ring 13 to be reduced in diameter.

  In FIG. 10A, the tail sensor 1 is inserted into the tail T of the cow. Since the tail T of the cow becomes thinner from the root side toward the tip side, a gap 18 is formed between the inner peripheral surface of the tail gripping portion 12 and the outer peripheral surface of the tail T. In FIG. 10B, when the tightening ring 13 is moved from the position shown in FIG. 10A to the flange side, the tightening ring 13 moves while reducing the outer diameter of the flexible tail grip 12. Therefore, the tail grip 12 formed in half is pressed toward the center in the radial direction, and the inner surface of the tail grip 12 strongly tightens the tail T.

  A large number of protrusions 19 are provided on the inner surface of the cylindrical shape formed in two parts of the tail holding portion 12 so as to face each other. When this projection 19 attaches the tail sensor 1 to the tail T of the cow, the tip of the projection 19 abuts or bites into the skin of the cow and tightens the tail T. Therefore, the cow swings around the tail T with a strong force. However, the tail sensor 1 does not easily fall off. In addition, the shape of the protrusion 19 should just be a pointed tip, for example, a pyramid, a cone, a sawtooth shape etc. can be used.

  In addition, an indicator 24 is provided at an arbitrary position (for example, both side surfaces) of the main body 11, and when it is determined that the cow is in a delivery situation or an estrus situation, the cow is raised by lighting or emitting light. Houses can be easily seen.

  11 and 12, in the tail sensor 1a showing another embodiment of the present invention, the mounting means has a clip shape, and the main body 11a is formed in a substantially square shape using reinforced plastic. Moreover, since the tail sensor 1a is soiled by cow manure or the like, the main body 11a has a waterproof structure. The storage portion 16a of the battery 70 has a structure that allows easy battery replacement. The main body 11a is attached to a side surface of a rod-shaped pin 48 described later. In addition, an indicator 24 is provided at an arbitrary position of the main body 11a, and when a cow is determined to be in a delivery state or an estrus state, a cow breeder or the like can easily visually recognize by lighting or emitting light with an LED. It can be done.

  The main body 11a is formed with a reinforced plastic clip as a means for attaching to the tail T. The clip is formed of a first clamping member 41, a second clamping member 51, and a connecting biasing member 42 that connects them while biasing them in a closed state. The first sandwiching member 41 is formed by combing a plurality of first sandwiching teeth 44 from the same side of the elongated first support side 43 in a cantilevered state to each other at the same pitch P interval. Projected into a shape. Each first clamping tooth 44 has a curved shape longer than a semicircular arc or a semi-elliptical arc.

  At the center portion of the first support side 43 of the first holding member 41, a holding piece 45 is obliquely rearward with respect to the protruding direction of the first holding teeth 44 (in FIGS. 12A and 12B). Projected integrally to the upper left). At the base of the holding piece 45, a pair of connecting pieces 46 are integrally protruded from the first support side 43 or the holding piece 45 at intervals, and the connecting pieces 46 have through holes 47 aligned in position. Is formed along the first support side 43.

  Similarly to the first support side 43, the second holding member 51 has a plurality of second holding teeth 54 curved from the same side of the elongated second support side 53 while being cantilevered by the second support side 53. These are molded so as to protrude integrally in a comb shape at the same pitch P interval. Each of the second holding teeth 54 has a shape longer than the semicircular arc shape or the semi-elliptical arc shape, like the first holding teeth 44, and is formed so as to protrude from the tip end portion of the first holding member 41. And the front-end | tip part of the 2nd clamping member 51 is formed in the state which closed and crossed.

  At the center of the second support side 53 of the second holding member 51, the holding piece 55 is on the back side obliquely with respect to the protruding direction of the second holding teeth 54, and is opposite to the holding piece 55 (FIG. 12). Projecting integrally from the second support side 53 to the upper right side in (a) and (b). At the base of the holding piece 55, a pair of connecting pieces 56 that come into contact with the pair of connecting pieces 46 of the first holding member 41 are integrally projected from the second support side 53 or the holding piece 55 at an interval. The connecting pieces 56 are formed with through holes 57 aligned with the through holes 47 of the connecting pieces 46 along the second support side 53.

As shown in FIGS. 11 and 12, the first and second holding members 41 and 51 are configured such that the connecting piece 56 of the second holding member 51 is fitted between the connecting pieces 46 of the first holding member 41. In a state where the through holes 47 and 57 are brought into contact with each other, the rod-shaped pins 48 are inserted and held in these, and the first and second holding teeth 44 and 54 are connected so as to face each other with a space therebetween. The coil spring 49 in which a spring wire having elasticity is formed in a spiral shape is inserted into the rod-shaped pin 48 and both ends of the coil spring 49 are pressed against the pieces 45 and 55 so that the first and second clamping teeth 44, The tip of 54 is urged to close or narrow.

  That is, the first and second support members are biased by the connecting pieces 46 and 56, the through holes 47 and 57, the rod-shaped pins 48, and the coil spring 49 in the state where the first and second holding members 41 and 51 are urged as described above. A connecting biasing member 42 having a hinge structure for connecting the sides 43 and 53 is formed. Usually, the tips of the first and second clamping teeth 44 and 54 intersect with each other, and the biasing force is On the other hand, for example, if the hand is picked so as to narrow the space between the holding pieces 45 and 55, the tips of the first and second holding teeth 44 and 54 are expanded.

  The first and second clamping teeth 44 and 54 described above are provided with a large number of protrusions 19 facing each other and shifted in position so as not to contact each other. When the tail 19 clamps the tail sensor 1 to the cow's tail T, the tip of the protrusion 19 abuts or bites into the cow's skin and tightens the tail T. Therefore, the cow swings the tail T with a strong force. However, the tail sensor 1a does not easily fall off. The shape of the protrusion 19 is the same as described above. Also, against the biasing force, for example, the tail sensor 1a can be removed from the tail T simply by picking it with a hand or the like so as to narrow the space between the holding pieces 45 and 55, and handling such as attachment and removal is extremely simple. is there.

  In FIG. 13, the foot sensor 2 includes a main body portion 21 and a foot grip portion 22. The main body portion 21 is made of reinforced plastic and is formed into a substantially rectangular shape and has a waterproof structure. The storage portion 16a of the battery 70 has a structure that allows easy battery replacement. The main body 21 is fixed to a flat belt 23 that is wound around a cow's foot. Further, an indicator 24 is provided at an arbitrary position of the main body 21, and when a cow is determined to be in a delivery state or an estrus state, a cow breeder or the like can be easily visually recognized by lighting or light emission by an LED. It can be done. One end portion of the flat belt 23 is provided with a rack belt 25 having a rack (sawtooth-like return prevention piece) formed on the surface as a locking means for holding the winding state of the flat belt 23, and at the other end portion. An insertion groove 26 for inserting the rack belt 25 is provided. As means for selectively restraining the rack belt 25 from moving, a ratchet (not shown) is slidably mounted inside the insertion groove 26. When the release button 27 is pressed down, the rack belt 25 is removed from the insertion groove 26. It can be pulled out. In a state where the release button 27 is not pushed down, the ratchet suppresses the movement of the rack belt 25, so that the feed movement is possible only in one direction, and the movement proceeds in the direction of the insertion groove 26, but cannot be pulled out from the insertion groove 26. As a result, even if the cow's foot L makes contact with the fence or the like or repeats standing and sitting, the foot sensor 2 does not fall off the cow's foot L.

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock delivery / estrus detection sensor, a detection device using the same, and a detection method, which detect the delivery status and estrus status of a cow of a tie stall mainly raised in a stable. However, the present invention is not limited to this, and it can be applied to livestock such as horses and pigs in addition to cattle, and can also be widely applied to livestock of grazing Thai stalls.

1, 1a Livestock delivery / estrus detection sensor (tail sensor)
2 Livestock delivery / estrus detection sensor (foot sensor)
DESCRIPTION OF SYMBOLS 3 Livestock delivery / estrus detection apparatus 10 Three-dimensional acceleration sensor 20 A / D converter 30 Calculation / determination part 40 Output part 50 Alarm device 60 Transmitter 70 Battery 11, 11a, 21 Body part 12 Tail holding part 13 Tightening ring DESCRIPTION OF SYMBOLS 14 Through hole 15 Flange 16, 16a Storage part 17 Tapered dividing groove 18 Gap 19 Protrusion 4b Information processing part 5 Memory | storage part 6 Communication part 7 RFID tag 8 Battery 22 Foot grip part 23 Flat belt 24 Display 25 Rack belt 26 Insertion Groove 27 Release button 30 Computer 31 Central processing unit 32 Storage device 33 Display device 34 Receiver 35 Transmitter 36 Alarm device 37 Mobile phone 38 Dedicated receiver 41 First clamping member 42 Connection biasing member 43 First support side 44 First clamping teeth 45, 55 Presser piece 46, 56 Connecting piece 47, 57 Pin 49 spring 51 the second clamping member 53 second supporting sides 54 second clamping Jiha C computer L bovine tail foot P pitch T cow

Claims (8)

  A three-dimensional acceleration sensor that is attached to the tail and foot of a domestic animal and measures the amount of movement of the tail of the domestic animal and the amount of movement such as walking, and acceleration data measured by the three-dimensional acceleration sensor are recorded in time series. An arithmetic unit for calculating is provided, and the arithmetic unit outputs at least a signal representing a delivery state or an estrus state of livestock, and is configured to wirelessly transmit the output signal using a transmitter. , Livestock delivery / estrus detection sensor.   The tailing action and momentum measured by the three-dimensional acceleration sensor are calculated by calculating the frequency per predetermined time in the calculation unit, and determining the delivery state or estrus state of the livestock based on the number of the calculated values. 2. The livestock delivery / estrus detection sensor according to claim 1, wherein a signal representing a result is output every predetermined time, and the output signal is wirelessly transmitted by a transmitter.   In the livestock delivery / estrus detection sensor, an identification code for identifying an individual of the livestock is added, the identification code is added to the signal output from the calculation unit, and wirelessly transmitted from a transmitter. The livestock delivery / delivery according to claim 1 or 2, characterized in that it is driven by a signal output from the calculation unit and is provided with a notification means that allows a livestock farmer or the like to easily check the delivery state or estrus state. Estrus sensor.   The delivery / estrus detection sensor is attached to the tail and foot of livestock, and is provided with attachment means for attachment to the tail or foot. Estrus sensor.   Two delivery / estrus detection sensors, a receiver for receiving a signal transmitted from each delivery / estrus detection sensor, a number of calculated values of the raising action and a number of calculated values of the momentum A livestock comprising: a control unit that determines a delivery state or an estrus state of a livestock by a combination; and a transmitter that transmits a determination result of the control unit to a receiving terminal that is displayed on a screen or in a remote location. Delivery / estrus detection device.   A three-dimensional acceleration sensor is attached to the tail and foot of a domestic animal, and the momentum of the tail raising action and walking of the domestic animal is measured, and the acceleration data measured by the three-dimensional acceleration sensor is recorded in the data memory in time series. And a calculation unit connected to the data memory calculates each acceleration data and outputs at least a signal representing the delivery state or estrus state of the livestock based on the calculation result. -Estrus detection method.   As for the raising action and the momentum measured by the three-dimensional acceleration sensor, the calculation unit calculates the frequency per predetermined time, determines the delivery state or the estrus state of the livestock based on the number of the calculated values, and the determination result 7. A method for detecting the delivery / estrus of livestock according to claim 6, wherein a signal representing the above is output every predetermined time, and the output signal is wirelessly transmitted by a transmitter.   The livestock delivery / estrus detection sensor is provided with an identification code for identifying an individual of the livestock. The identification code is added to the signal output from the calculation unit and transmitted wirelessly from the transmitter. The radio signal is received by the receiver, and the control unit determines the delivery state or estrus state of the livestock based on the combination of the calculated value of the raising action and the calculated value of the momentum. 8. The method for detecting the delivery / estrus of livestock according to claim 6 or 7, wherein the determination result is displayed on a screen or transmitted to a receiving terminal at a remote location.

Images