JP2022056317A - Uterus sensor of livestock - Google Patents

Abstract

To provide a biological information detection device that can detect vaginal secretion, and thereby can detect an estrus day.SOLUTION: A uterus sensor of livestock is provided for collecting the biological information of livestock. The uterus sensor of livestock comprises: a cylinder-like housing having the diameter being smaller than the vagina of the livestock; a pair of sensor electrodes positioned in the outer circumferential surface of the housing, and connected to the electric conductivity sensor; and the electric conductivity sensor for measuring the resistance between the pair of sensor electrodes, and measuring the electric conductivity of the uterus secretion of the livestock. By the uterus sensor of the livestock of the present invention, the precise estrus time can easily be detected, and thereby a fertility rate can be improved.SELECTED DRAWING: Figure 4

Description

It relates to a livestock uterus sensor that can be attached while inserted into the vagina of a livestock, can detect the biological information of the livestock in real time for a long period of time, and can accurately detect the estrus date of the livestock.

The livestock industry has grown significantly in terms of quantity, with the breeding scale and population increasing along with changes in eating habits. In particular, as the small-scale livestock industry changes to the large-scale livestock industry, there will be farmers who raise thousands or tens of thousands of livestock, and the scale of livestock will increase, which is more systematic than before. Needed a system that could manage livestock.

When livestock infectious diseases such as foot-and-mouth disease, mad cow disease, pig fever, and bird flu (AI) occur as the breeding scale increases, the problem is that transmission easily occurs between livestock raised in a limited space. be. In severe cases, large-scale death is required, which will have a great impact on the livestock industry.

Therefore, it is very important to improve productivity while protecting livestock from infectious diseases. One way to improve the productivity of livestock is to increase the number of livestock and increase the turnover rate of the mother.

As a method of increasing the number of calves, there is a quality improvement that improves the number of calves that can be delivered at one time. Improving the quality of livestock can promote maternal ovulation and produce a larger number of fertilized eggs to increase the number of pregnant animals. However, quality improvement requires long-term research, and even if the number of pregnant animals is increased by using the improved breed, stillbirth will occur at the time of actual delivery, or the baby will die shortly after giving birth because it is not healthy. In this case, there is a problem that the actual number of live births is limited.

As a method for increasing the birth turnover rate, there is a method for minimizing the number of non-production days, which is a period excluding pregnancy and lactation. In particular, if estrus is missed, the number of non-production days increases by about 3 weeks, so it is very important to detect the estrus date.

In the past, hormones were used to synchronize the estrus dates of livestock, but the adjustment of the reproductive cycle using hormones was restricted, and estrus was caused by changes in the vulva, behavior, and body temperature of livestock. Was detecting the day.

However, changes in the vulva may vary in degree of symptom depending on the individual, and the signs of estrus may be unclear, and changes in behavior in an environment kept in a limited space are limited. It may happen and there may be no major changes. In addition, changes in body temperature are difficult to measure for large animals such as cows, and there are many other variables that affect changes in body temperature, resulting in reduced accuracy.

As in Patent Document 1 (Korean Patent No. 10-2009-0049917), a method for diagnosing an estrous cycle through gene detection takes time for gene collection work and derivation of results. As in Patent Document 2 (Korean Registered Patent No. 20-0309657) and Patent Document 3 (Korean Patent No. 10-2011-0027374), breeders directly use methods for detecting cow riding behavior. It is necessary to check repeatedly for each individual, and there is a problem that the accuracy is also lowered.

In particular, in the conventional method, since the breeder needs to directly measure whether or not the object is in heat periodically, not only the amount of work is large, but also the accuracy is low and the estrus period lasts. Considering that is short, it is possible to miss the estrus period if not measured often.

It is an object of the present invention to provide a biological information detection device capable of detecting vaginal discharge and detecting an estrus date. In particular, it is intended to provide a device that facilitates insertion and removal of livestock into the vagina.

In a livestock uterine sensor that collects livestock biometric information, a cylindrical housing with a diameter smaller than that of the livestock vagina and a pair of sensor electrodes located on the outer peripheral surface of the housing and connected to the electrical conductivity sensor. And a livestock uterine sensor including an electrical conductivity sensor that measures resistance between the pair of sensor electrodes and measures the electrical conductivity of the livestock uterine secretions.

A battery that supplies power to the electrical conductivity sensor can be included.

The housing includes a first housing in which the pair of sensor electrodes are located and a second housing that is separably fastened to the other side of the first housing, and the first housing and the second housing. Can include a waterproof ring located between.

The battery includes a substrate portion mounted on the first housing and including a connection clip connected to the pair of sensor electrodes, and a battery insertion portion connected to the other side of the substrate portion and where the battery is located. The insertion portion is located inside the second housing when the first housing and the second housing are fastened, and can be exposed to the outside when the second housing is separated from the first housing.

The second housing may have a length greater than or equal to the length of the battery.

The first housing is an electrode in which both ends of the substrate portion are inserted and the substrate fixing slot extended in the length direction of the housing is communicated with the inner surface of the pair of sensor electrodes, and the connection clip is located. The electrode hole may include a hole and an inclined surface such that the inside is larger in diameter than the outside.

The first housing includes a first thread formed on the outer surface of the other side, and the second housing is a second thread formed on the inner surface of one side and spirally coupled to the first screw thread. The waterproof ring can be coupled to the outer surface of the first housing so as to be in contact with one side end of the second housing when the spiral coupling is completed.

The pair of electrode sensors can include a first sensor electrode arranged on one side of the housing and a second sensor electrode separated from the first sensor electrode and arranged side by side.

The pair of electrode sensors may have an arc extending along the outer peripheral surface of the housing.

The first sensor electrode may have a ring shape surrounding along the outer peripheral surface of the housing, and the second sensor electrode may have a ring shape surrounding along the outer peripheral surface of the housing.

The housing may include a first groove portion and a second groove portion formed at positions corresponding to the first sensor electrode and the second sensor electrode.

The housing has a first sub-housing located on one side with the first groove as a boundary, a second sub-housing located on the other side of the first sub-housing, and the second groove as a boundary. The first sensor electrode is waterproof-bonded to the first groove portion formed by the first sub-housing and the second sub-housing, including the third sub-housing located on the other side of the two sub-housing, and the second sub-housing is formed. The second sensor electrode can be waterproof-bonded to the second groove portion formed by the third sub-housing.

The housing may be streamlined at both ends.

It may further include a string fastener located at the other end of the housing to which the string for separation is fastened.

The housing may further include an elastic fixation that binds to the housing so that it can be installed in the vagina of a domestic animal. The elastic fixing portion extends from the length direction of the housing in the radial direction and can include a plurality of fixing legs made of elastic material.

The elastic fixation portion includes a fastening ring that is coupled around the housing, and the fastening ring can expose both ends of the housing.

The fixed leg can be bent in a curved shape.

The cross section of the fixed leg may have a U-shape with an open lower portion.

It can include a communication module that transmits the measured value of the electric conductivity measured by the electric conductivity sensor to an external device.

The communication module may include a wire antenna that includes a metal wire and an outer coating thereof.

The control module includes a control module for controlling the measurement of the electric conductivity sensor, and the control module can control the electric conductivity sensor so as to measure the electric conductivity at a predetermined cycle.

The control module controls the electric conductivity sensor to measure the electric conductivity in the first cycle, and when the measured value of the electric conductivity becomes equal to or more than the first reference value, the electric conductivity sensor causes the first. The electrical conductivity can be controlled to be measured in a second cycle shorter than one cycle.

The control module controls the communication module so as to transmit an alarm or the measured value of the electric conductivity to an external device via the wireless communication unit when the measured value of the electric conductivity becomes the second reference value or more. can do.

The communication module may include a wire antenna that includes a metal wire and an outer coating thereof.

The control module includes a control module for controlling the measurement of the electric conductivity sensor, and the control module can control the electric conductivity sensor so as to measure the electric conductivity at a predetermined cycle.

The control module controls the electric conductivity sensor to measure the electric conductivity in the first cycle, and when the measured value of the electric conductivity becomes equal to or more than the first reference value, the electric conductivity sensor causes the first. The electrical conductivity can be controlled to be measured in a second cycle shorter than one cycle.

The control module controls the communication module so as to transmit an alarm or the measured value of the electric conductivity to an external device via the wireless communication unit when the measured value of the electric conductivity becomes the second reference value or more. can do.

According to at least one embodiment of the present invention, a single insertion enables continuous measurement until the arrival of estrus in livestock, and it is not necessary to repeatedly inspect individual objects for estrus inspection. Can reduce the waste of human resources for.

In addition, since the string can be easily removed from the uterus by pulling the string, the effect on livestock can be minimized, and since it can be reused, it can be used semi-permanently.

In addition, compared to the conventional method, since the data is acquired in real time, the estrus time can be detected accurately, and the change can be detected more reliably than the body temperature measuring method, so that it is accurate. It is possible to detect the estrus time and improve the fertilization rate.

It is a conceptual diagram which simplifies acquisition and processing of the biological information of the livestock using the uterus sensor of the livestock of this invention. It is a figure which shows the shape of the follicle and the estrus period with the change of the hormone of livestock. It is a block diagram of the uterine sensor of the domestic animal of this invention. It is a perspective view of the uterine sensor of this invention. It is a figure which shows the state which the 1st housing and the 2nd housing of the uterine sensor of this invention are separated. It is an exploded view of the uterine sensor of this invention. (A), (b), and (c) are sectional views of the uterine sensor of the present invention. (A) and (b) are views showing the shape of the uterine sensor of the present invention inserted into livestock. (A) and (b) are diagrams showing a state in which an elastic fixation portion is coupled to the uterine sensor of the present invention. (A) and (b) are diagrams showing a state in which an elastic fixation portion is coupled to the uterine sensor of the present invention. It is an image which visualized the data collected by the uterine sensor attached to the cow of this invention. It is a graph which shows the measured value of the sensor collected by the uterine sensor of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that a person having ordinary knowledge in the technical field to which the present invention belongs can easily carry out the present invention. However, the invention can be embodied in several different forms and is not limited to the embodiments described herein. Then, in order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are designated by the same reference numerals throughout the specification.

Terms that include ordinal numbers, such as first, second, etc., can be used to describe the various components. However, the above components are not limited by the above terms. The above terms are used only to distinguish one component from the other. For example, the first component can be named as the second component without departing from the scope of rights of the present invention, and similarly, the second component can be named as the first component. The terms used in the present invention are used merely to describe a particular embodiment and are not intended to limit the present invention. A singular expression includes multiple expressions unless they have a distinctly different meaning in context.

Throughout the specification, some parts are "connected" to others, not only when they are "directly connected", but also with other elements in between. Including the case where it is "electrically connected". Also, any part "contains" any component means that other components may be further included rather than excluding other components unless otherwise stated. As used throughout this specification, the term "stage" or "stage" does not mean "stage for".

As the terms used in the present invention, general terms that are widely used at present are selected in consideration of the functions of the present invention, but the intentions or precedents of engineers engaged in the art and the emergence of new technologies have been selected. It can vary depending on such things. In addition, there are some terms arbitrarily selected by the applicant in specific cases, and in this case, the meaning will be described in detail in the explanation of the applicable invention. Therefore, the terms used in the present invention should be defined based on the meaning of the terms and the general content of the present invention, not on the simple names of the terms.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a conceptual diagram schematically showing the acquisition and processing of livestock biometric information using the livestock uterus sensor of the present invention. Referring to FIG. 1, the individual information acquisition system of the present invention collects information acquired from the uterine sensor 100 and the uterine sensor 100, which are inserted into the uterus of an individual (livestock) and acquire biological activity information, by a repeater 200. It can be sent to the server 300 or to the user's terminal 400. The repeater 200 can be connected to the server 300 via a network for transmission to the server 300. When there is an important notification or a network failure occurs, it can be transmitted directly to the user's terminal 400 via wireless communication.

The uterine sensor 100 of the present invention is inserted into the vagina of a domestic animal to detect at least one of changes in vaginal secretion components, body temperature, and movement of the domestic animal, and collects data on the biological activity of the domestic animal. be able to.

Devices that are inserted into the body of livestock are measured only at specific times and repeaters in order to minimize power consumption so that the battery 130 can be used for a long time without replacement as much as possible. Can be sent to 200. Here, when the signal is transmitted over a long distance, the problem that the signal does not reach may occur. Therefore, the uterine sensor 100 can transmit biometric data via broadcast (roadcasting) within a range within a certain distance already set. One or more receivers installed within a certain range can be configured to collect broadcast data and send it to a central server. The uterine sensor 100 is useful when transmitting a signal to the repeater 200 at a short distance because the power consumption is not large.

The uterine sensor 100 of the present invention can collect biometric data of livestock by inserting it into the vagina of livestock such as pigs, sheep, goats and dairy cows and cattle. In particular, changes in the vaginal environment of livestock can be measured according to changes in hormones associated with the reproductive cycle of livestock.

Since the uterine sensor 100 is inserted into the body of a domestic animal, even if a transceiver for long-distance communication is used, radio wave attenuation may be large, and the communication distance may be significantly reduced.

For example, when using a transceiver that supports Sub-1-GHz, the specification of the transceiver is about 6.4 km (4 milles), but if the actual transceiver is installed inside the livestock and used for data communication, the livestock The communication distance may be reduced to several hundred meters, or even several meters, due to the attenuation of radio waves due to the skin and moisture of the livestock.

Therefore, if the repeater is installed far beyond the communication distance from the uterine sensor, it is difficult to transmit data from the uterine sensor directly to the central server via the repeater. In this case, a second device is installed in another part of the livestock body to collect data from the uterine sensor and send it to a repeater (or drone (not shown)) or server 300. can do. Examples of the second device include a necklace, an ear tag (not shown), and the like.

Devices such as necklaces and ear tags may transmit the data collected from the uterine sensor to a repeater installed within a certain distance via a communication method such as RoLa, wireless LAN, LTE, 5G, etc. It may be transmitted directly to the server 300 by using communication such as LoRa.

Further, it is one of the practical difficulties that each uterine sensor 100 must be provided with an identifier for mobile communication, that is, USIM, in order to use mobile communication.

Therefore, by placing the repeater 200 in the barn, the measurement data of hundreds of uterine sensors 100 can be collected and transmitted to the server 300. The repeater 200 may be a fixed type located in the barn. In the case of grazing livestock, since the distance from the livestock is long, a mobile repeater 200 such as a drone may be used. It is also possible to use a ground-type repeater 200 that moves in the pasture instead of flying like a drone.

The repeater 200 can receive data from the uterine sensor 100 at a distance of about 100 meters, and for wireless communication with the uterine sensor 100, of Bluetooth (registered trademark) (Bluetooth) or Wi-Fi (registered trademark). As described above, a short-range communication module 140 (see FIG. 3) that utilizes a signal in a low frequency band can be included. A wireless communication module may be included to transmit the collected data to the server 300. When installed as a fixed type in the barn, the connection with the server 300 can also be transmitted via a wired network.

The repeater 200 can include a memory 180 (see FIG. 3) in which the data collected from each uterine sensor 100 and the identification ID of the uterine sensor are stored. The memory is included in the uterus sensor 100, the repeater 200, or the server 300, respectively, and can store data and the like that need to be stored in each device, but is not limited thereto. The data of the uterine sensor 100 stored in the memory 180 can store the records of hundreds of uterine sensors 100 for each time zone, and in order to identify each data, the data of each uterus sensor 100 can be stored. The transmitted data can have the following structure.

Identification ID of uterine sensor 100-Data collection time-Measured value of the first sensor (uterine sensor) -Measured value of the second sensor (temperature sensor) ...- Measured value of the nth sensor

If it is difficult to accurately measure the collection time with the uterine sensor 100, the data collection time can be added to the repeater 200. Since the mobile repeater 200 such as a drone is equipped with GPS, it is possible to add position information regarding the collected position and transmit it to the server 300.

The server 300 can be installed on a farm and collected and managed in a remote data center. The server 300 is connected to each repeater 200 via wireless communication, collects biometric information of each object, monitors biometric information of livestock in the ranch, and can output statistics.

Since the livestock biometric information collected by the server 300 can be compared and analyzed with the livestock biometric information of other farms, it should be analyzed so that it can be used as basic data for improving the optimum breeding method. Can be done.

The livestock biometric information collected by the server 300 is transmitted to the terminal 400 of each client, and the client can confirm the state of the livestock in real time. The client terminal 400 can include both a mobile communication terminal 400 such as a mobile phone or a tablet and a wired communication terminal 400 such as a desktop.

By providing the client with a change in livestock condition via a notification method, the client can be managed not to miss important events without continuous monitoring.

The uterine sensor 100 of the present invention and its system can acquire biological information of various livestock, but the main object of the present invention is to collect data relating to the estrus period and parturition of livestock.

FIG. 2 is a diagram showing the shape and estrus period of follicles (follicles) in response to changes in livestock hormones. Although livestock mating is carried out naturally using males, artificial insemination technology is becoming widespread in large-scale barns. It is necessary to perform artificial insemination by accurately determining the ovulation period in which the follicle 31 grows in the ovary and the grown follicle 31 is torn and the egg is discharged.

Wild herbivorous mammals, such as horses, breed seasonally to breed in a suitable environment for breeding. That is, the period from spring to early summer is the estrus period once a year.

In domestic animals such as pigs and cows, if the female is not pregnant, the estrous cycle is repeated at regular intervals, and the estrous cycle is about 21 days (around 3 weeks) including the follicular phase 4 to 5 days and the luteal phase 16 days. show. Follicle 31 located in the female ovary is affected by follicle-stimulating hormone (FSH) 11 secreted from the pituitary gland to promote growth and development, and estrogen 12 is secreted in the fully developed follicle 31. Estrogen 12 affects the hypothalamus and pituitary gland of the brain, and the amount of estrogen 12 secreted increases to the extent that follicles grow. When estrogen 12 exceeds a certain concentration, the animal introduces it into estrus 20 and estrogen 12 induces luteinizing hormone (LH) 13 to be secreted from the pituitary gland. When the luteinizing hormone 13 is secreted, the mature follicular 31 ovulates (excretes the egg into the uterus) and the follicular 31 is converted to the corpus luteum 32. Immediately after ovulation, the concentration of estrogen 12 decreases, and the concentration of progesterone 14 secreted from the corpus luteum 32 increases sharply.

The corpus luteum 32 disappears after about half a month, and the concentration of progesterone 14 changes according to the development cycle of the corpus luteum. Progesterone 14 plays a role in suppressing uterine contraction and ovulation to maintain pregnancy. In the absence of pregnancy, the corpus luteum 32 degenerates and the concentration of progesterone 14 decreases.

The estrous cycle can be determined by collecting blood from livestock and measuring the concentration of hormones in the blood, or by performing an ultrasonic examination of the ovaries. However, it is practically difficult to repeat blood sampling or ultrasonography for all individuals. Therefore, it can be generally judged by changes in the behavior of livestock and changes in the vulva.

In this way, the behavior or change that is shown as the appearance of livestock during estrus is called estrus. In the case of animals with a long estrous cycle, ovulation may occur during the estrus cycle, and in the case of livestock with a short estrous cycle, ovulation may occur at the end of estrus or after the end of estrus.

In the case of pigs, the duration of estrus is about 2 to 3 days, and ovulation occurs in the middle stage of estrus (around 70% of the duration of estrus). In the case of cattle, the duration of estrus is as short as about 18 hours, and ovulation can be performed within 12 to 18 hours after the end of estrus. Since the artificial insemination conception rate of livestock is highest immediately after ovulation one day before ovulation, it is important to accurately determine the ovulation time.

The period from the time when the estrogen 12 shown in FIG. 2 reaches the maximum value can be regarded as the estrus period 20. In the present invention, the uterine sensor 100 is used to detect when the concentration of estrogen 12 is highest.

FIG. 3 is a block diagram of the livestock uterus sensor 100 of the present invention, and FIG. 4 is a perspective view of the uterus sensor 100 of the present invention. The uterine sensor 100 of the present invention has a communication module 140 that collects biological information of livestock via a sensor module 150 and transmits the collected biological information to a repeater 200, and has a communication module 140, a sensor module 150, and a sensor module. It is composed of a control module 120 that controls 150 and a battery 130 that supplies power to each component.

The repeater 200 is a second identification device configured to collect and transmit biological information of livestock in the form of a repeater installed in a barn or a necklace or an ear tag installed on the neck of livestock. Can be included.

As shown in FIG. 4, the uterine sensor 100 of the present invention can have a long cylindrical shape like a pen for insertion into the vagina of livestock. The end of the housing 110 is formed into a hemispherical surface with a smooth surface with no corners to minimize irritation when the uterine sensor is inserted into the vagina of livestock and with the uterine sensor inserted. can do. In addition, the size of the uterine sensor may be configured to be 15 mm or less in diameter and 120 mm or less in length based on the size of the vagina of medium-sized livestock such as pigs and sheep so that it can be applied to various livestock. can.

A pair of sensor electrodes 1511 and 1512 are located on one side of the pen-shaped housing 110, and a battery 130, a control module 120, a communication module 140, and the like can be arranged inside the housing 110. Conventionally, there is a device for collecting biological information of livestock that is exposed to the outside, and the livestock may feel uncomfortable by sticking it on the main body with tape or hanging it on the body. On the other hand, in the present invention, since the housing 110 is completely inserted into the uterine sensor 100, the livestock does not have a foreign body feeling or discomfort even when attached to the livestock. Can be minimized.

For example, the structure of the uterine sensor is shaped like the appearance of a pen and the radius of its housing can be designed to be sufficiently smaller than the radius of the vagina of a domestic animal. The housing of the uterine sensor 100 can be installed in combination with another support so that it is installed in the space inside the vagina of the livestock and is not pushed to one side.

For removal, a hole 112a for fastening the string can be formed so that a string-like string 118 can be connected to the end of the uterine sensor 100. The end of the string 118 can be exposed to the outside, and by pulling it, the uterus sensor 100 can be removed from the uterus of the domestic animal. The string 118 can be replaced with a string 118 of an appropriate length according to the size of the livestock without being integrated with the housing 110.

Each part of the uterine sensor 100 will be described more specifically with reference to the block diagram of FIG. In the present invention, a large number of sensors are included in order to acquire the biological information of an individual from the inside of the living body of the individual. Sensors mounted on the uterus sensor 100 include an electrical conductivity sensor 151, a temperature sensor 152, an acceleration sensor 153, and the like.

The electric conductivity sensor 151 is a device for measuring the electric conductivity of a substance or an object. Electrical conductivity is an index that indicates the degree to which a current flows between a substance or an object located between a pair of sensor electrodes. Conductors such as metal have high electrical conductivity, and non-conductors such as glass have low electrical conductivity.

Although it is possible to measure the electrical conductivity between two points of a solid such as a metal, it is also possible to measure the electrical conductivity of a liquid containing electrolyte ions. The electric conductivity of the liquid becomes higher as the concentration of the electrolyte ion contained in the liquid increases, and the unit is dS / m or mS / cm. Electrical conductivity can also vary depending on pH concentration and temperature. The electrical conductivity varies slightly depending on the type of ions contained in the liquid, but can vary in proportion to the total salt concentration.

The electrical conductivity can be calculated by passing a current through a pair of sensor electrodes and measuring the magnitude of the amount of current flowing between the pair of sensor electrodes. In addition, it is possible to detect a change in the concentration of electrolytic ions of the liquid located between the sensor electrodes.

In response to the above-mentioned changes in livestock hormones, there are changes in the vulva and behavior of livestock, and changes in vaginal secretions secreted from the cervical canal. The secretions secreted by the cervix play a disinfecting role to prevent the possibility of bacteria entering the uterus and support sperm to smoothly enter the uterus through the uterus during the ovulation period. Play a role. The closer to the day of ovulation, the greater the amount of secretions, which is clearer and less viscous than normal. The secretion contains some inorganic salts, mucous polysaccharides, etc., and the components change according to the estrous cycle. In particular, the concentrations of sodium and chlorine change, indicating high concentrations of sodium and chlorine during estrus.

Changes in sodium and chlorine concentrations lead to changes in electrical conductivity, which can be measured in real time to monitor vaginal discharge sodium and chlorine concentrations and predict ovulation time. As we approach estrus, the concentrations of sodium and chlorine increase, and the electrical conductivity also increases.

In order to measure the concentration of vaginal discharge more accurately, the size of the sensor electrode needs to ensure a sufficient contact point with the vaginal discharge. If the sensor electrode of the uterine sensor is formed small, the sensor electrode may be in close contact with the vaginal wall when the uterine sensor is attached to the vagina of a domestic animal, making it difficult to measure the concentration of vaginal secretions.

As shown in FIGS. 4-6, the present invention includes a pair of sensor electrodes 1511, 1512 that are exposed to the outside, and the sensor electrodes 1511, 1512 can be extended long along the perimeter of the housing 110. The drawings show a ring-shaped electrode shape that is extended to 360 ° and has both ends coupled, but a short-extended electrode shape such as 90 ° or 270 ° is also possible. The wider the shape of the sensor electrode, the wider the contact area, and it is possible to prevent the occurrence of measurement errors, but it can be deformed into various shapes in consideration of space restrictions and the like.

The sensor electrodes 1511 and 1512 exposed to the outside can be connected to a measuring unit located inside. The measuring unit is mounted on a substrate unit 121 located inside the housing 110, and a power supply is applied to the pair of sensor electrodes 1511 and 1512 to measure the current between the sensor electrodes 1511 and 1512.

The sensor module 150 can further include other sensors in addition to the electrical conductivity sensor 151. For example, as shown in FIG. 3, a temperature sensor 152 for measuring the body temperature of the livestock, an acceleration sensor 153 for measuring the movement of the livestock, and the like can be further included, but the present invention is not limited thereto.

Some livestock, such as cows, do not have a large change in body temperature, but medium-sized livestock, for example, pigs have a change in body temperature according to the estrous cycle, and the temperature sensor 152 can observe the change in body temperature of pigs. In addition, the electrical conductivity of the secretion may vary depending on the body temperature even if the ion concentration is the same. Therefore, when there is a change in the body temperature of livestock, the temperature sensor can detect this and correct the electric conductivity value.

The temperature sensor 152 can detect whether or not estrus has occurred and the progress during childbirth. When a disease occurs, the body temperature of the livestock rises, so that the health condition of the livestock can be monitored by using the temperature sensor 152. Since the temperature sensor 152 does not necessarily have to be exposed to the outside, it can be located inside the housing 110.

When the estrus period 20 is entered, the movement of the livestock becomes more active, so that the activity amount can be measured and monitored by using the acceleration sensor 153 to detect the estrus period. The acceleration sensor 153 includes an inertial type, a gyro type, a silicon semiconductor type, and the like, and the larger the number of directions (axises) of the acceleration sensor 153 that can be detected by the acceleration sensor 153, the higher the accuracy.
For example, when a 6-axis accelerometer is used, the accuracy is higher than when the activity amount is measured by the 3-axis accelerometer.

The communication module 140 can transmit the data acquired from the sensor module 150 to the outside. Here, it is possible to directly transmit data to the server 300 using a general public wireless communication network, but when the amount of transmitted data is small, data transmission over a long distance is performed rather than high-throughput data transmission. Therefore, the communication distance is much more important.

If the data rate is reduced by 4 times, the transmission distance will be doubled. In the case of the uterine sensor 100 inserted into the body of livestock, it is difficult to use a high-power short-wave signal capable of transmitting a signal over a long distance. The uterine sensor 100 can transmit the data measured by the uterine sensor, for example, by using the Sub-1 GHz band, which is a relatively low frequency.

In order for the radio signal to pass through the body of the livestock, it is preferable from the viewpoint of efficiency and medical treatment to use a long wave. For example, there is a problem that power consumption is large for long-distance communication, and if the power consumption is large, the life of the battery 130 is shortened. Therefore, the uterine sensor is removed and inserted for replacement or charging of the battery 130. There can be a problem that you need to repeat.

The uterine sensor 100 of the present invention can use communication methods such as Bluetooth (registered trademark) and Wi-Fi (registered trademark), particularly BLE and WiFi HaLow designed with low power consumption. The communication module 140 of the present invention can transmit a signal using the frequency band of Sub-1 GHz. Even if such a low frequency signal of 1 GHz or less is used, the radio wave is attenuated while passing through the body of the livestock, and the signal capable of long-distance transmission of 6.4 km may be reduced to about 100 m to several hundred meters. Therefore, the communication module 140 can transmit a signal to the server 300 via the repeater 200 located in the barn or another device within the transmission distance.

When the sensor module 150 includes a plurality of sensors, the communication module 140 can collect and transmit data detected from each sensor. In addition to the biological information of livestock, information on the battery 130 of the uterine sensor 100, information on the failure of the sensor module 150, and the like can be transmitted to the server 300. In addition to transmitting data, the communication module 140 can also receive commands from the server 300 and transmit them to the control module 120.

The memory 180 can temporarily store data and can store unique identification information of the uterine sensor 100. When the data measured by the sensor is transmitted via the communication module 140, the unique identification number (ID) of the uterine sensor 100 can be transmitted together to clarify the source of the data.

In order to minimize the number of times the communication module 140 is driven, the information measured for a certain period of time can be stored in the memory 180 and then transmitted to the repeater 200 at once in a predetermined cycle. In this case, in order not to miss the estrus period, the control module 120 stores the data detected by the sensing unit in the memory 180 when it exceeds the reference value (when the value determined to be the estrus period is reached). It can be immediately transmitted to the repeater 200 without any problem.

By controlling the sensor module 150 and the communication module 140, the control module 120 can be controlled to collect livestock biometric information and transmit the data to the repeater 200. In other words, it is possible to control the cycle of detection by the sensor module 150, the cycle of transmitting data by the communication module 140, and the like. In order to minimize the power consumption, the detection time by the sensor module 150 can be set as short as about 20 μsec and the instantaneous value can be measured.

The detection cycle of the electric conductivity sensor 152 is as small as 1 to 3 times a day before approaching the estrus period, and the collected data is transmitted about once a day with the sensor module 150 and the sensor module 150. The communication module 140 can be controlled. In the face of estrus, it can be measured in 1 hour or 10 minute increments and immediately transmitted to the repeater 200 to monitor the condition of the livestock in real time.

Since there is almost no change in electrical conductivity until just before the introduction in the estrus period, the measurement cycle can be adjusted in consideration of the estrus cycle (the estrus of cattle is 20 to 30 days) and the number of measurement days.

In addition to measuring the electrical conductivity at regular time intervals to detect the estrus period, if a sudden change in the body temperature of the livestock occurs, there is a risk of an infectious disease of the livestock. Even when the data transmission cycle is long, the communication module 140 can be controlled to transmit data urgently.

Further, the control module 120 can also receive a command from the server 300 and change the drive cycle or method of the sensor module 150 and the communication module 140. If necessary, the administrator can control each uterine sensor 100 to collect accurate biometric information.

The battery 130 is a power supply unit and supplies the power required by the communication module 140 and the sensor module 150. The control module 120 can control the communication module 140 and the sensor module 150 in order to optimize the use of the battery 130. The battery 130 is realized to be replaceable or rechargeable, and the uterine sensor 100 can be reused.

Further charging terminals are required for charging. When the usage cycle is long, the replaceable type is more advantageous than the rechargeable type. The uterine sensor 100 of the present invention uses a 1.5 V AAAA size battery 130 due to its thin diameter and can be used for about 6 months.

For replacement of the battery 130, the housing 110 can have a removable structure. The uterus sensor 100 can consist of a first housing 111 and a second housing 112 that is removable from the first housing 111. FIG. 5 is a diagram showing a state in which the first housing 111 and the second housing 112 are separated for replacement of the battery 130 of the uterine sensor 100 of the present invention. When the second housing 112 is separated, the battery storage portion 133 in which the battery 130 is installed is exposed, and the battery 130 can be replaced.

The battery compartment 133 may be located within the first housing 111 and the second housing 112 may cover the end of the first housing 111. In this case, one power supply terminal of the battery 130 needs to be located in the second housing 112, and the second housing 112 needs to be connected to the power supply terminal located in the second housing 112 when connected to the first housing 111. be.

Since there is a risk of poor connection of the battery 130 in this type, the battery storage unit 133 is connected to the board unit 121 mounted on the first housing 111, and the battery storage unit 133 is completely exposed when the second housing 112 is separated. do. Since the battery housing portion 133 is exposed in the lateral direction, the battery 130 can be inserted in the lateral direction of the pen-shaped housing 110.

The second housing 112 can be easily fastened to the first housing 111. Further, it is necessary to seal the space between the first housing 111 and the second housing 112 so that foreign matter does not enter. The first housing 111 and the second housing 112 are provided with a first thread 111d and a second thread 112d, respectively, and when the first screw 111d and the second thread 112d are fastened, the first housing 111 and the second are second. The housing 112 can be coupled. The spirally constructed fastening can further be provided with a waterproof ring 117 for perfect waterproofing that blocks the inflow of external material.

The waterproof ring 117 can be provided at a position where the connection between the first thread 111d and the second thread 112d is completed. The waterproof ring 117 contains an elastic material, and when compressed, the shape changes and the waterproof ring 117 is brought into close contact with the waterproof ring 117. When the second housing 112 is fastened, the waterproof ring 117 is crimped so that the space between the first housing 111 and the second housing 112 can be sealed.

6 is an exploded view of the uterine sensor 100 of the present invention, and FIGS. 7 (a) to 7 (c) are cross-sectional views taken along the lines AA, BB, and CC of FIG. 4, respectively. .. The cross-sectional views of AA, BB, and CC of FIGS. 4 shown in FIGS. 7A to 7C are views cut in a direction perpendicular to each other.

6 and 7 (a) to 7 (c) show a first housing 111, a second housing 112, a substrate portion 121, sensor electrodes 1511, 1512, a battery housing portion 133, a battery 130, and the like. The first housing 111 and the second housing 112 may be combined to form a pen-shaped housing 110, and the other side of the first housing 111 and one side of the second housing 112 may be combined to form an internal space to be connected. can. The board portion 121, the battery storage portion 133, and the battery 130 can be mounted in the internal space of the housing 110.

In order to arrange the pair of sensor electrodes 1511, 1512 of the electric conductivity sensor 152 located in the first housing 111, the first housing 111 can be divided into three parts. That is, the first housing 111 includes a first sub-housing 111a located on one side of the uterine sensor 100, a second sub-housing 111b located between the first sensor electrode 1511 and the second sensor electrode 1512, and a second housing. A first thread 111d to be fastened to 112 is formed and includes a third subhousing 111c located on the other side of the second sensor electrode 1512.

Unlike FIG. 6, in order to form the ring-shaped sensor electrodes 1511 and 1512 on the outside of the integrated first housing 111, the sensor electrodes 1511 and 1512 have a shape protruding from the first housing 111. Become. The pair of sensor electrodes 1511 and 1512 of the present invention are configured to have a plurality of sub-housings 111a, 111b and 111c so that the first housing 111 is formed in a ring shape which is flush with the first housing 111. be able to.

Each of the sub-housings 111a, 111b, 111c can be composed of an exposed portion exposed to the outside and a hidden portion located on the back surface of the first sensor electrode 1511 and the second sensor electrode 1512. Further, a step having a height corresponding to the thickness of the sensor electrodes 1511 and 1512 can be formed between the exposed portion and the hidden portion.

The hidden portions of the first sub-housing 111a, the second sub-housing 111b, and the third sub-housing 111c come into contact with each other at the time of coupling. Here, the hidden portion may include a terminal hole in which the connecting clip 123 is located so that the connecting clips 123 connecting the sensor electrodes 1511 and 1512 and the measuring portion located inside the housing are in contact with each other.

When the sensor electrodes 1511 and 1512 are not ring-shaped and have a shape in which both ends are not connected, it is not necessary to configure the first housing 111 with a plurality of sub-housings, and the hidden portion where the sensor electrodes 1511 and 1512 are installed is exposed. It may be configured to have a step, and a terminal hole may be formed in the hidden portion.

The terminal hole can include an inclined surface as shown in FIG. 7 (a). After inserting the substrate portion 121 at the other end of the first housing 111, the connection clip 123 can be pushed out along the slope when it is removed for repair.

Since the measuring part of the electric conductivity sensor 151 is located inside the housing and the sensor electrodes 1511 and 1512 are exposed to the outside of the housings 111 and 112, there is a gap between the sensor electrodes 1511 and 1512 and the housings 111 and 112. It needs to be sealed to prevent foreign matter from entering. The concealed portion and the sensor electrodes 1511 and 1512 can be bonded via waterproof bonding so that the liquid does not flow into the inside of the housing.

The first sub-housing 111a, the second sub-housing 111b, and the third sub-housing 111c are coupled to the first sensor electrode 1511 and the second sensor electrode 1512, and the first housing 111 is fastened to the first housing 111. The board portion 121 can be mounted inside the.

A communication module 140, a sensor module, a control module 120, and the like can be mounted on the board portion 121, and a battery storage portion 133 in which the battery 130 is installed can be coupled to the other side of the board portion 121. As shown in FIG. 6, the substrate portion 121 and the battery housing portion 133 located inside the housings 111 and 112 can be integrally formed.

The communication module 140 includes an antenna 141 for wireless communication and an RFIC (Radio Frequency IC) mounted on the board portion 121. Since the signal in the low frequency band of 1 GHz is used, the length of the wavelength is 30 cm, and when a frequency lower than that is used, the length of the wavelength is 30 cm or more. In the case of a dipole antenna, a dipole antenna having a wavelength of 1/2 or a monopole antenna having a length of 1/4 can be used. In the case of a dipole antenna, a length of at least 15 cm or more is required, and in the case of a monopole antenna, a length of 7.5 cm or more is required.

Since the uterine sensor 100 of the present invention is manufactured with a length of about 10 cm, in the case of a dipole, it is necessary to further increase the diameter and length of the uterine sensor 100 in order to secure a mounting space. However, it is difficult to secure a space for mounting the dipole in the housing having a length of about 10 cm. Even in the case of the monopole, since the first housing 111 and the second housing 112 are separated and the mounting space of the battery 130 is completely filled by the inside of the second housing 112, the first housing 111 and the board portion 121 It is necessary to mount the antenna 141 by utilizing the space between the antenna and the antenna 141.

Since the pair of sensor electrodes 1511 and 1512 are arranged on the outside of the first housing 111, the influence on the antenna is minimized unless the antenna is arranged so as not to come into contact with the sensor electrodes 1511 and 1512. I can't. The antenna can be realized by forming a conductive pattern on the FPCB. Here, the FPCB-shaped antenna needs to be attached to the side wall of the first housing 111 because the substrate portion 121 may be damaged when the substrate portion 121 is inserted into or taken out from the first housing 111.

A wire antenna 141 including a metal wire and a covering portion on the outside thereof can be used. Since the wire antenna 141 is freely deformed in shape by bending a metal wire and includes a covering portion on the outside, it does not directly affect the wire antenna 141 even if it comes into contact with other parts. As shown in FIGS. 6 and 7, the wire antenna 141 has one end coupled to the substrate portion 121 and can be bent and arranged in the first housing 111.

Since the length of the first housing 111 is ½ or less of the total length of the uterine sensor 100, the length of the first housing 111 is 4 cm or less, and the antenna 141 having a length of 7.5 cm or more is the first. 1 It is difficult to extend and arrange in the housing 111, and it can be bent and arranged.

The battery housing unit 133 includes two power supply electrodes 131 and 132, and can include a first power supply electrode 131 located on one side adjacent to the substrate unit 121 and a second power supply electrode 132 located on the other side. One of the first power supply electrode 131 and the second power supply electrode 132 can be configured such that the battery 130 including the elastic portion is in close contact with the first power supply electrode 131 and the second power supply electrode 132. Further, a support portion located between the first power supply electrode 131 and the second power supply electrode 132 and supporting the battery 130 can be included. Since the second power supply electrode 132 is connected to the substrate portion 121, the extended portion can be shaped to correspond to the shape of the battery 130 to form the support portion.

The substrate portion 121 is inserted from the other side of the first housing 111 and can be inserted across the central portion of the first housing 111 so that the substrate portion 121 has the widest area.

The first housing 111 may further include a substrate groove 111e into which the substrate portion 121 is inserted so that the substrate portion 121 does not move. The substrate groove 111e can be composed of a combination of internal protrusions of the first housing 111 that partially supports one surface and the other surface of the substrate, rather than the shape of a continuous groove. As shown in FIG. 7A, on the drawing, the protrusions supporting the lower portion of the substrate portion 121 can be located at the central portion and the right end portion.

The board portion 121 can be completely inserted into the first housing 111 when inserted into the first housing 111, and the length of the first housing 111 is set so as not to be exposed to the outside when the second housing 112 is separated. It can be designed according to the internal length of one housing 111. When the second housing 112 is separated from the first housing 111, the battery housing portion 133 is exposed, and when the battery 130 is attached to the battery housing portion 133 and the second housing 112 is fastened to the first housing 111, the uterine sensor 100 Can be completed.

A string fastening portion 112a may be included on the other side of the second housing 112 to accommodate the string 118 for removal of the uterine sensor 100. The string fastening portion 112a can be configured in a hole shape. The string 118 may not be configured as an integral part, but may be configured in a individually attachable form so that it has different lengths depending on the livestock to which it is applied. The uterine sensor 100 of the present invention has no cable connected to the outside of the vagina, does not cause discomfort to livestock, and can be used for a long period of time in the inserted state. Since the data can be acquired in short time units of minutes, there is an advantage that the administrator does not have to repeat the work, the estrus period can be accurately detected, and the health condition of the livestock can be confirmed. ..

8 (a) and 8 (b) are views showing a shape in which the uterine sensor 100 of the present invention is inserted into a domestic animal. (A) is an example of use applied to a medium-sized livestock of about 100 kg such as a pig, and (b) is an example of use applied to a large-sized livestock such as a cow.

As shown in FIG. 8A, the main body having a shape as shown in FIG. 4 in which the parts are mounted inside the housing can be used by inserting it up to the cervix of the vagina of the pig. Medium-sized livestock such as pigs have a small vagina and the uterine sensor 100 is stably installed and does not detach, while large domestic animals such as cows have a large vagina and the uterine sensor 100 may detach.

In this way, the body is made smaller so that it can be applied to animals of various sizes, and the uterine sensor 100 can be installed in the vagina of the livestock according to the size of the livestock. An elastic fixing portion 190 that is fastened to the uterus can be provided.

9 (a) and 9 (b) are views showing the elastic fixation portion 190 of the uterine sensor 100 of the present invention. Referring to FIG. 9 (a), the elastic fixing portion 190 includes a fastening ring 191 into which the main body is inserted, and includes a plurality of fixing legs 192 extending radially around the fastening ring 191 and containing an elastic material. Can be done.

As shown in FIG. 9B, the fastening ring 191 can be configured so that the other side of the main body penetrates and the string fastening portion 112a located on the other side of the main body is exposed. The size of the ring of the fastening ring 191 can be formed to be slightly smaller than the main body so that the elastic fixing portion 190 is not easily separated from the main body when the uterine sensor 100 is removed.

Since the fixed leg 192 has elasticity and can be easily deformed, the shape of the fixed leg 192 changes when the fixed leg 192 is narrowed and inserted at the time of insertion into livestock and the string 118 is pulled at the time of removal. Can be easily removed.

As the material of the fixed leg 192, a soft silicone material can be used to facilitate deformation. Further, as shown in FIG. 9B, by forming the groove 192a so that the cross section has a U-shape, the deformation of the fixed leg 192 can be facilitated.

The fixed leg 192 can be configured to have a curve so that the fixed leg 192 is stably fixed in the vagina of the domestic animal. For example, as in the embodiments shown in FIGS. 9A and 9B, the fixed leg 192 is radially extended to form a wave-like curve, and the end curve of the fixed leg 192 is that of the fixed leg 192. It can be formed to form a curve extending in the direction opposite to the starting point.

10 (a) and 10 (b) are views showing another embodiment of the elastic fixing portion 190, (a) shows a state of being fixed to the main body, and (b) is a lower portion of the elastic fixing portion 190. It is a bottom view seen from. The fastening ring 191 is similar to the embodiment of FIGS. 9A and 9B, but is characterized in that the fixed leg 192 is extended while forming a tornado-like curve. As shown in FIG. 10 (b), the groove 192a drawn in the lower portion is formed along the extension direction of the fixed leg 192, and the flexibility of the fixed leg 192 can be enhanced. Hereinafter, an example of the data collected by the uterine sensor 100 will be described, and the differentiating features of the uterine sensor 100 of the present invention will be described.

FIG. 11 is an image that visualizes the data collected by the uterine sensor 100 mounted on the cow of the present invention, and the horizontal axis shows the date and the vertical axis shows 24 hours. One frame occupies one hour, and when data is collected multiple times in one hour, the average value is shown.

The value measured by the electric conductivity sensor 151 is expressed in ms / cm unit. When the electrical conductivity reaches the maximum value, it becomes 2,000,000 ms / cm or more. The numerical value of the electric conductivity collected by the uterine sensor 100 may differ depending on the type of livestock, but at the highest value in the estrus period, estrogen 12 and luteinizing hormone 13 are the maximum, and the secretion is changed to cause the electric conductivity. Reaches the highest value.

As shown in FIG. 11, the electric conductivity reaches the maximum value from 12:00 on November 16th to 24:00 on 17th, and this section becomes the estrus period (about 18 hours). In the other sections, the electrical conductivity is 1,000,000 ms / cm or less, which is different from the estrus period.

As a result, changes in electrical conductivity are related to the concentration of ions in the secretion, i.e. the concentration of sodium and chlorine, which can be converted to the concentration of ions (sodium and chlorine) (ppm).

12 (a) to 12 (d) are graphs showing the measured values of the sensor collected by the uterine sensor 100 of the present invention, where (a) is the ion concentration, (b) is the electrical conductivity, and (c) is. It is a graph which shows the body temperature of a livestock using a temperature sensor 152, and (d) is a graph which measured the activity amount of a livestock using an acceleration sensor 153.

12 (a) and 12 (b) are graphs showing values measured using the electric conductivity sensor 151, and although the size and unit of the values on the vertical axis have changed, the electric conductivity depends on the concentration of ions. The appearances of the two graphs are shown to be the same.

This graph shows the values measured once for 10 minutes as a graph, and the measurement cycle can be adjusted differently according to the situation and the estrous cycle.

In addition, when the numerical value of the electric conductivity or more is repeatedly shown in a fixed cycle (several minutes or several hours), or when the electric conductivity is increased by a specific rate (for example, 25% or more) above the reference value. Can be judged as the estrus period.

With reference to FIG. 12 (d), the amount of activity appears irregularly regardless of the estrus period, and as shown in FIG. 12 (c), the change in body temperature increases in the estrus period 20, but there is no significant change. , There is a possibility that changes in body temperature will appear depending on the physical condition of the livestock and the external environment, regardless of the estrous cycle, so the problem is that the accuracy of predicting estrus period 20 is reduced only by changes in body temperature. There is.

As a result, among the biometric information of livestock collected by the uterine sensor 100, the electrical conductivity can be an index for measuring the most accurate estrus period. The standard value can be set differently according to the type of livestock and the environment.

When the value detected by the electric conductivity sensor becomes a predetermined reference value (for example, 1,000,000 ms / cm) or more, the control unit 120 quickly transmits data to the server 300 via the repeater 200 or the like. As such, the communication module 140 can be controlled, and the server 300 can send an alarm to the user terminal 400 so that the user recognizes the livestock near the estrus period.

As described above, according to at least one embodiment of the present invention, one insertion enables continuous measurement until the arrival of estrus in livestock, and individual objects for estrus inspection are repeatedly inspected. Since there is no need, it is possible to reduce the waste of human resources for estrus inspection.

In addition, since the string can be easily removed from the uterus by pulling the string, the effect on livestock can be minimized, and since it can be reused, it can be used semi-permanently.

In addition, compared to the conventional method, since the data is acquired in real time, the estrus time can be detected accurately, and the change can be detected more reliably than the body temperature measuring method, so that it is accurate. It is possible to detect the estrus time and improve the fertilization rate.

On the other hand, although the technical idea of the present invention is specifically described based on the above-described embodiment, it is well known that the above-mentioned embodiment is for explanation only and not for limiting it. Should. Further, those skilled in the art of the present invention can understand that various embodiments are possible within the scope of the relevant technical idea.

100 Uterine sensor 111 1st housing 111a 1st sub-housing 111b 2nd sub-housing 111c 3rd sub-housing 111d 1st screw thread 112 2nd housing 112a String fastening part 112d 2nd thread 117 Waterproof ring 118 String 120 Control module 121 Board Part 123 Connection clip 130 Battery 131 1st power supply electrode 132 2nd power supply electrode 133 Battery storage part 140 Communication module 141 Antenna 150 Electrical conductivity sensor 1511 1st sensor electrode 1512 2nd sensor electrode 160 Temperature sensor 153 Acceleration sensor 180 Memory 190 Elastic Fixed part 191 Fastening ring 191a Fastening hole 192 Fixed leg

Claims (24)

In the livestock uterus sensor that collects livestock biometric information,
With a cylindrical housing that has a smaller diameter than the vagina of livestock,
A pair of sensor electrodes located on the outer peripheral surface of the housing and connected to the electric conductivity sensor,
A livestock uterine sensor, comprising an electrical conductivity sensor that measures resistance between the pair of sensor electrodes and measures the electrical conductivity of the livestock uterine secretion. The livestock uterus sensor according to claim 1, comprising a battery that supplies power to the electrical conductivity sensor. The housing is
The first housing in which the pair of sensor electrodes are located and
A second housing, which is separably fastened to the other side of the first housing, and the like.
The livestock uterus sensor of claim 2, comprising a waterproof ring located between the first housing and the second housing. A substrate portion mounted on the first housing and including a connection clip connected to the pair of sensor electrodes.
Includes a battery insert that is connected to the other side of the board and where the battery is located.
The battery insertion portion is located inside the second housing when the first housing and the second housing are fastened, and is exposed to the outside when the second housing is separated from the first housing. The livestock uterus sensor according to 3. The livestock uterus sensor according to claim 4, wherein the second housing has a length equal to or longer than the length of the battery. The first housing is
A board fixing slot into which both ends of the board portion are inserted and extended in the length direction of the housing, and
Includes an electrode hole that communicates with the inner surface of the pair of sensor electrodes and where the connection clip is located.
The livestock uterus sensor according to claim 4, wherein the electrode hole includes an inclined surface such that the inside has a larger diameter than the outside. The first housing includes a first thread formed on the outer surface on the other side.
The second housing includes a second thread formed on the inner surface on one side and spirally coupled to the first thread.
The livestock uterus sensor according to claim 3, wherein the waterproof ring is coupled to the outer surface of the first housing so as to be in contact with one side end of the second housing when the spiral coupling is completed. The first aspect of claim 1, wherein the pair of electrode sensors includes a first sensor electrode arranged on one side of the housing and a second sensor electrode separated from the first sensor electrode and arranged side by side. Livestock uterine sensor. The livestock uterus sensor according to claim 8, wherein the pair of electrode sensors has an arc shape extending along the outer peripheral surface of the housing. The livestock uterus according to claim 8, wherein the first sensor electrode has a ring shape surrounding along the outer peripheral surface of the housing, and the second sensor electrode has a ring shape surrounding along the outer peripheral surface of the housing. sensor. The livestock uterus sensor according to claim 10, wherein the housing includes a first groove portion and a second groove portion formed at positions corresponding to the first sensor electrode and the second sensor electrode. The housing is
The first sub-housing located on one side with the first groove as a boundary,
The second sub-housing located on the other side of the first sub-housing and
A third sub-housing located on the other side of the second sub-housing with the second groove as a boundary is included.
The first sensor electrode is waterproof-bonded to the first groove portion formed by the first sub-housing and the second sub-housing.
The livestock uterus sensor according to claim 11, wherein the second sensor electrode is waterproof-bonded to the second groove portion formed by the second sub-housing and the third sub-housing. The livestock uterus sensor according to claim 1, wherein the housing has streamlines at both ends. The livestock uterine sensor of claim 1, further comprising a string fastening portion located at the other end of the housing and to which a string for separation is fastened. The livestock uterine sensor according to claim 1, wherein the housing further comprises an elastic fixation portion that is coupled to the housing so that it can be installed in the vagina of the livestock. The livestock uterine sensor according to claim 15, wherein the elastic fixation portion extends from the length direction of the housing in the radial direction and includes a plurality of fixing legs made of an elastic material. The elastic fixation includes a fastening ring that joins around the housing.
The livestock uterus sensor according to claim 16, wherein the fastening ring exposes both ends of the housing. The livestock uterus sensor according to claim 16, wherein the fixed leg is curved in a curved shape. The livestock uterine sensor according to claim 16, wherein the cross section of the fixed leg has a U-shape with an open lower portion. The livestock uterus sensor according to claim 2, further comprising a communication module that transmits the measured value of the electric conductivity measured by the electric conductivity sensor to an external device. The livestock uterus sensor according to claim 20, wherein the communication module includes a wire antenna including a metal wire and an outer coating thereof. Includes a control module that controls the measurement of the electrical conductivity sensor.
The livestock uterus sensor according to claim 20, wherein the control module controls the electric conductivity sensor so as to measure the electric conductivity at a predetermined cycle. The control module controls the electric conductivity sensor to measure the electric conductivity in the first cycle, and when the measured value of the electric conductivity becomes equal to or more than the first reference value, the electric conductivity sensor causes the first. 22. The livestock uterine sensor according to claim 22, which controls to measure the electrical conductivity in a second cycle shorter than one cycle. The control module controls the communication module so as to transmit an alarm or the measured value of the electric conductivity to an external device via the wireless communication unit when the measured value of the electric conductivity becomes the second reference value or more. 23. The livestock uterine sensor according to claim 23.

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