JP2680031B2 - Method and device for measuring the weight of a walking animal - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for weighing a walkable animal and an apparatus thereof.

[Conventional technology]

As a method for measuring the weight of an animal that can walk, conventionally, the animal that can walk on the weighing machine is forcibly stopped or almost stopped, and the walking animal becomes stationary on the weighing machine or becomes a stable state close to it. In this way, the weight of the walkable animal is calculated based on the weight value data measured in the stable state.

By the way, as a method for forcibly stopping a walkable animal on the weighing machine, a gate for closing the exit of the walking path formed on the weighing machine is provided. And
The weight of an animal that can be walked is reduced, and the weight of the animal is read when the weight becomes stable. After that, the exit gate is opened and the animal is moved to the outside. Is. (See, for example, JP-A-59-73735 and JP-A-60-30626.) [Problems to be Solved by the Invention] According to a conventional measuring method, a walking animal is in a stable state with little movement on a weighing machine. There is a disadvantage that it cannot measure efficiently and swiftly because it has to wait until it becomes, and there is also a disadvantage that the walking animal must be stopped forcibly on the weighing machine, which is a disadvantage that stresses the walking animal. In addition, there are various inconveniences in terms of practical use, such as difficulty in accurately stopping the walking animal on the weighing machine.

The present invention has been made in view of the above circumstances,
Its purpose is to stress the animal by suddenly trapping it in a tight restraint space on the balance or by arresting it in an attempt to stop the animal from moving back and forth causing irregular movements. By eliminating the disadvantage that it takes a long time and labor to carry out proper weight measurement, the individual weight of not only one animal but also thousands of animals or multiple solids thereof As a group, walk on a weighing machine at once and weigh the entire group,
An object of the present invention is to provide a method that enables efficient and quick measurement, and an apparatus that can reasonably implement the method.

[Means for solving the problem]

A feature of the invention of claim 1 is a method of walking a walkable animal and measuring the weight of the walkable animal. (1) The walkable animal is straight lined from an inlet to an open outlet on a weighing machine. While walking in a straight line or in a substantially straight line, (2) Sequentially fetching weighing values while the animal walks on the weighing machine as a sampling series, (3) setting an effective data section from the sampling series, 4) The weight of the walking animal is read from the sampling series in the valid data section. (5) The weight measuring method of the walking animal.

Is to use.

The term "2 Claims" will be abbreviated as "Claims" below, and the invention related to "Claims 1" will be abbreviated as "Invention 1", for example.

The above means is the solving means used by the invention of claim 1.

[Operation of the Invention of Claim 1] The characteristic operation of the invention of claim 1 is as follows.

That is, while keeping the outlet of the weighing machine in an open state, while walking a walkable animal in a straight line or a substantially straight line on the weighing machine, the total weight of the walking animal is measured by the weighing machine. Basically, the weight value of the animal during walking is calculated from the weight value in the state of being affected.

 Therefore, the advantages obtained are as follows.

To measure the weight of a walkable animal, it is necessary to place the walkable animal on the weighing machine first, and then to weigh it on the weighing machine and then drop it from the weighing machine. In view of this, walk the walkable animal from the entrance of the weighing machine onto the weighing machine, and then walk on the weighing machine in a straight line or in a substantially straight line, and then continue to exit from the weighing machine exit. During a series of stable animals that are swallowed continuously, the weight of the animal during walking is measured from the weight value, so during the time of the weighing performed during the series of stable walking movements. The animal's body is moving due to movement, but its spirit is rather stable, so the movement during that time is stable.

Moreover, in order to carry out the walking described above, by leaving the outlet of the weighing machine in an open state and allowing the animal to walk along the straight or substantially straight walking path on the weighing machine, It becomes easy to pass over the weighing machine in a calm manner without feeling resistance.

Due to the coexistence of and, the animal is moved on the weighing machine whose outlet is closed, and then compared to the case where the animal is forcibly kept substantially stationary on the weighing machine and weighing.
According to the present invention, it is possible to cause a walking animal to exhibit a stable mental state on a weighing machine and to maintain a stable walking motion very easily. Therefore, it is easy to perform stable and correct weighing. Is.

It is for the following reason that the weight of the animal on walking can be correctly measured because the animal on the weighing machine can easily maintain a stable walking motion.

That is, when the walking animal walks on the weighing machine, the weight of the walking animal repeatedly changes due to the reason that the foot of the walking animal repeatedly abuts the walking surface of the weighing machine. However, because the shaking of the animal's organs up and down or left and right that occurs when the animal walks becomes a relatively regular shaking by stably walking as described above, the weighing value generated due to this shaking. If the change of is supposed to change in a state close to a sine curve,
If the weighted values of the animals are averaged over several steps, the weight measurement error due to the shaking is almost eliminated.

Further, when the leg of the animal collides with the weighing surface, the weighing value appears greatly due to the impact force, but the reaction force of the impact force gives upward force to the animal.

Therefore, even if there is a change in the weighing value, the weight of the animal can be correctly measured because the walking of the animal is stable by averaging the weighing values during several walking steps of the animal over time.

Moreover, since the weighing values while the walking animal is on the weighing machine are sequentially taken in as a sampling series and the effective data section used to read the weight of the walking animal is set from this, the section suitable for the situation is selected. It is possible to easily read the weight of the walking animal, and moreover, even when setting the valid data section, the weighing value changes stably as described above, so that it can be set easily and stably. This also makes it possible to measure the weight of the animal more accurately in this respect.

Further, in the invention of claim 1, following the movement of causing the animal to step on the scale in order to place the animal on the scale, the animal is moved to the open outlet on the scale. Since it walks in a straight line or in a substantially straight line and continues to walk from the open exit, it is a short time from when the animal is raised on the weighing machine until it is withdrawn from the weighing machine. However, since the stable and good weighing described above can be quickly carried out in an extremely short time, there is a remarkable advantage that the good weighing can be easily carried out in a very time-efficient state.

INDUSTRIAL APPLICABILITY The present invention can be used for four-legged animals such as cows, horses, and sheep, as well as two-legged animals such as chickens, and for human weight measurement.

[Effect of the Invention of Claim 1] In the invention of Claim 1 described above, the animals can be individually and sequentially walked on a weighing machine to be weighed individually.
A large number of walkable animals are divided into a plurality of groups, and the divided groups are simultaneously allowed to walk on a weighing machine for each group at a time, while one group is weighed at a time, and then another group is separated. By weighing all at once and repeating this, there is a remarkable effect that even thousands of animals can be quickly and efficiently measured with high accuracy.

In carrying out the invention of claim 1, it is desirable that the walking surface on the weighing machine and the walking surfaces before and after the weighing machine are all leveled to the same horizontal plane.

The present invention can also be used for animals with four legs such as cows, horses, and sheep, and for animals with two legs such as chickens, and for human weight measurement.

[Invention of Claim 2] [Configuration and Operation] Next, the matter described in Claim 2 is a solving means used in "the invention of Claim 2", and in "Invention of Claim 1", It is possible to position the ground on each side about 25 cm lower than the weighing machine surface so as to allow the animal to walk on the weighing machine. In this "invention of claim 2," the walking animal is used. It is possible to easily force the animal to go straight or substantially straight on the weighing machine by using a restricting tool that forcibly regulates the animal so that it cannot move to the left or right laterally from the weighing machine.

(Effect)

 The measurement can be surely performed.

〔Example〕

When the restrictor is extended from a fixed part, that is, from the ground or from a fixed part of the weighing machine, it is not necessary to cause a weighing error due to vibration of the restrictor.

When the regulating tool is used in a continuous manner from the weighing surface of the weighing machine, even if an animal may exert a vertical force on the regulating tool, it is preferable that a weighing error does not occur.

[Invention of Claim 3] The invention of Claim 3 having the configuration of Claim 3 is as described in the section of the operation and effect of the invention of Claim 1.
By measuring for a suitable time while walking the animal,
The weight of the animal can be read.

That is, in order to obtain the weight of the walking animal by calculation, the weighing values while the animal walks on the weighing machine are sequentially taken in as a sampling series, an effective data section is set from the sampling series, and the effective data is set. The stationary weight value of the walking animal can be obtained from the sampling series of the section by averaging calculation or the like.

Therefore, in the invention of claim 3, the weight of the animal to be measured can be read from this even if the weighted value in the valid data section is simply arithmetically calculated.

[Invention of Claim 4] It is preferable to smooth the analog weighing value so as to remove noise (high frequency component) contained in the analog weighing value output from the weighing machine.

[Invention of Claim 5] If the weighing machine of the present invention is provided in the middle of the walking path where the animal to be measured is habitually walking, the mind and body of the animal are both stable, so that the animal remains stationary. Of course, it is easier to measure the weight more accurately.

[Invention of Claim 6] When the shock absorbing elastic material is used, a rapid change in the weighing value caused by the animal leg colliding with the weighing surface is easily mitigated, so that the weight of the walking animal from the weighing value is accurately corrected. It has the advantage of being easy to read.

[Invention of Claim 7] For specifying an apparatus for carrying out the above method,
Based on the actions and effects described in the above method, the actions and effects of the present invention can be understood.

〔Example〕

Hereinafter, a case where the present invention is applied to measurement of the weight of a cow as a traveling animal will be described with reference to the drawings.

As shown in FIG. 1, the weighing machine (1) makes its upper surface flush with or substantially flush with the aisle surface in a walking passage where cows are used to walking, such as between a livestock barn and a pasture. The weight of the cow is measured while the cow walks on the weighing machine (1).

The said walkway is equipped with the fence (2) on both sides, and the shelf part (2a) located on both sides of the weighing machine (1) of this fence (2) is the weighing machine (1). ) Above, the cow is designed to function as a restricting tool that prevents lateral movement of the cow so that the cow walks along a straight line or a substantially straight line. Then, the left and right shelf parts (2
The interval between a) is set to be slightly larger than the width of the cow so that the above-mentioned regulating action is properly performed.

The length of the walking path of the cow on the weighing machine (1) is determined so that at least the cow can walk for several steps (for example, 3 to 6) with the entire load placed on the weighing machine.

By the way, in this embodiment, the total length of the weighing machine (1) is 3 m, the width is 80 cm, the total length of the cow is about 2 m, and the distance between the front and rear feet is about 1.5 m. The width of the weighing machine (1) corresponds to 1.1 to 1.5 times the width of the cow.

Further, the inlet and outlet of the weighing machine (1) are open.

The weighing machine (1) includes a weighing table (1a) and its weighing table (1a).
and four load cells (1b) (see FIG. 2) arranged to receive and support the four corners (square portions) of a),
The output signal of the load cell (1b) is output to the measurement processing unit (H) as a weighing value. By the way, the output signals of the four load cells (1b) are added and output to the measurement processing unit (H). As described above, the load cell is generally arranged so that the four load cells are arranged so as to receive the square portion of the weighing machine, but it is possible to swing up and down around one side of the weighing machine. If you want to
The load cell may be arranged so as to receive the side portion facing one side corresponding to the swing center.

Further, a rubber mat (1c) is laid on the upper surface of the weighing platform (1a) as an impact-absorbing elastic material layer, so as to reduce a shock when a cow lowers his / her foot. That is,
The mat (1c) functions as a collision buffering elastic material interposed between the surface on which the weigher (1) receives the load from the cow and the mechanical output point of the weigher (1). In this case, the upper surface of the mat (1c) is the surface on which the weighing device (1) receives a load. In this way, when the shock absorbing elastic material is present in layers on the weighing surface, the impact due to the collision of the animal leg on the weighing surface can be most effectively alleviated.

Further, in this case, the slippage of the animal leg on the weighing surface is generally reduced, and this also has an advantage that correct measurement can be easily performed.

The measurement processing unit (H) includes an amplifier (2) for amplifying an analog electric signal from the load cell (1b) and a low-pass filter (3) for smoothing the output of the amplifier (2).
And an A / D converter (4) that quantizes a smoothed signal at a predetermined sampling time, and a controller using a microcomputer that calculates the weight of a cow while walking from the quantized weighing value data (5), a display unit (6) as a display means for displaying the obtained weight of the cow by a CRT or a printer, and a memory (7) for storing the weight value data and the data for the arithmetic processing. Is the main part.

Then, a weight value is obtained while the total weight load of the walking cow is applied to the weighing machine (1), and the weight of the walking cow (weight corresponding to the static weight value) is calculated from the weight value, It is supposed to display it.

In addition, a tag (8) for transmitting a radio signal or the like for separating each cow is hung on the neck of each cow, and the information transmitted from the tag (8) is received beside the weighing machine (1). A tag recognition means (9) including an antenna and the like is provided, and the reception information of the tag recognition means (9) is also input to the control device (5). That is, the measurement processing unit (H) is configured to identify one cow out of a plurality of cows and display the weight of the walking cow along with the identification information.

Incidentally, (S) in FIG. 2 is a passage detection sensor described in another embodiment, which is not used in this embodiment.

Next, the measurement process will be described while describing the process of the control device (5).

The antenna signal from the amplifier (2) is shown in FIG. 3, and the signal smoothed by the low pass filter (3) is shown in FIG. And, FIG. 5 shows the quantization of the smoothed signal.

In the curve of weighing value-time shown in Fig. 3, (a) F2F in the figure is the weighing value at the moment when the front two legs of a four-legged animal are placed on the upper front of the weighing machine, and ) F4F in the figure is the weighing at the moment when the four legs of this animal are placed on the weighing machine for the first time, and (c) R4F is the weighing value at the moment when the four legs simultaneously step on the weighing surface at the end. ) If the R2F is the weighing value when the front two legs of the animal have already descended from the weighing plane and only the latter two legs are on the weighing plane, then Weighed value and R
Weighing value after 2F and distinguishing the weighing value while the total animal weight between F4F and R4F is on the weighing machine, there is an advantage that it is easy to select only the weighing value between F4F and R4F. You can set a valid data section like this.

When the quantized weighing value (hereinafter simply referred to as weighing value data) becomes larger than the set value (a) which is slightly larger than the weight of the weighing table (1a), the cow starts riding on the weighing table (1a). As a matter of fact, the weighing value data is sequentially stored in the memory (7) as a sampling sequence, and when the weighing value data becomes smaller than the set value (a), the cow is placed on the weighing table (1).
It ends as if it got off from a).

The maximum value (G) is first obtained from the stored weighing value data, and then the maximum value (G) and the maximum value (G) which is greater than 0.8 and is less than 1 which is predetermined: n (Eg 0.9)
A continuous region in which the weighing value continuously appears for a set time: t (for example, 2 seconds) or more within a range between the value multiplied by and is set to the useful data section. That is, the time point of entering the continuous area is the start point of the valid data section, and the end point of the continuous area is the end point of the valid data section.

In this way, by using the time point of entering the continuous area as the start point of the valid data section, it is easy to capture the valid data section at a fast time, so the weight of the animal can be read relatively accurately and relatively quickly. It has the advantage that it is easy to use, and the end point of the effective data section is the end point of the continuous area, so that the valid data section is used up to the last point where proper weighing can be performed. There is an advantage that it is easy to do.

Then, the weighing value data (sampling data) of the effective data section is averaged by a weighted average having the effective data section as a width, and the calculation result of the average value is regarded as the static weight of the cow during walking. Next, the static weight is displayed on the display unit (6) as the weight of the walking cow along with the specific information of the cow. A window function such as a Hamming window or a Hanning window may be used for the weighted averaging.

In short, a weight calculation means for calculating the weight of a cow as a walking animal from the weight value data while the total weight of the walking animal is applied to the weighing machine (1) by using the control device (5). (100) is configured, and the display unit (6) displays the calculation result of the weight calculating means (100).

The weight calculating means (100) is specifically composed of the following means.

(1) Means for sequentially taking in weighing values as a sampling series while the walking animal walks on the weighing machine, (2) Means for setting an effective data section from the sampling series, (4) The effective data section It comprises an arithmetic means for obtaining a static weight value of the walking animal by an averaging operation from a sampling sequence.

(Another embodiment)

As a method of setting the valid data section from the stored sampling series of the weighing value data, it may be described as follows in the case of specifying in the continuous region as in the above-mentioned embodiment.

In the range between the maximum value of the sampling series and the value obtained by subtracting a predetermined value from the maximum value, the valid data section in the continuous region in which the weighing value continuously appears for a set time or longer. May be specified, or a valid data section may be specified in a continuous region in which the weighing value continuously appears for a set time or longer in a range larger than a preset set value. By doing so, in the same manner as described in the above embodiment, in FIG. 3, the weighing value before FSF and the weighing value after R2F, and F4F
There is an advantage that it is easy to select only the weighing value between F4F and R4F by distinguishing it from the weighing value while the total animal weight between R4F and R4F is on the weighing machine.

By the way, the advantage of characterizing the effective data section in the continuous area is that if a walking animal such as a cow runs through unnecessarily quickly, it is determined as a measurement error. Will be useful to do.

Then, as a method of setting the valid data section in the continuous area, all of the continuous area is set to the valid data section as in the above-described embodiment, that is, the time point of entering the continuous area is set as the valid data section start point, and In addition to using the time point outside the continuous area as the end point of the valid data section, there are the following methods.

The time point at which the walking animal to be measured passes a predetermined first point on the walking path on the weighing machine (1) is set as the start point of the effective data section, or the time point outside the continuous region is the end point of the effective data section. Or the time point at which the walking animal to be measured passes a predetermined second point on the walking path on the weighing machine (1) is set as the end point of the valid data section, or a predetermined time has elapsed from the start point. The time may be set as the end point, or the time when a state in which the amount of change in the weighing value is larger than the set value is detected may be set as the end point.

As described above, regarding the time point when the predetermined target walking animal passes the predetermined first point on the walking path on the weighing machine (1) as the starting point of the effective data section, the position of the predetermined first point is measured. From the nature and size of the animal, it is understood that all of the weight of the animal is surely placed on the scale, and a predetermined position near the entrance on the scale is designated as a predetermined point. By setting the time when the animal passes this point as the start point of the effective data section, the weight calculation of the measured animal can be simplified. It should be noted that the structure in which the effective data section is started at the time of entering the continuous area, and the weighing machine (1)
By using together with the configuration in which the time point that passes the predetermined first point on the above walking route is used as the start point of the valid data section, and the earlier detected time point of these is used as the start point of the valid data section. In addition, it can be used more quickly and more easily for accurate measurement.

Further, as described above, the end point of the valid data section is the time point at which the walking animal to be measured passes the predetermined second point on the walking path on the weighing machine (1) on the weighing machine (1). The time when the vehicle passes a predetermined first point on the walking route is set as the start point of the effective data section and the time before and after is reversed, and similarly, the weight measurement is simplified. It should be noted that both the configuration in which the last time point of the continuous region is the end point of the valid data section and the configuration in which the time point when passing the predetermined second point on the walking path on the weighing machine (1) is the end point of the valid data section are used together. Then, it is possible to set an effective data section up to any one of the earlier points to end the measurement earlier, and to have the advantage of facilitating the rapid progress of a large number of intermittent measurements.

Further, as described above, regarding the end point when a predetermined time has elapsed from the starting point, the weight of the animal to be measured can be accurately determined by appropriately selecting the predetermined time by the experience side.
Alternatively, it can be measured quickly.

Further, as described above, by setting the end point at the time when the state where the change amount of the weighing value is larger than the set value is detected, the amount of change of the weighing value, that is, the difference between the detected weighing values (gradient) ) Is larger than the set value predicted during normal walking in a stable state, the inaccurate weighing value can be removed by determining the end point at that time. In other words, a steep slope means that the animal is performing an unstable motion, and therefore the weight value is removed during the unstable motion.

Note that various effective data sections can be set by combining various methods for determining the start point and the end point, including the method for determining the start point and the end point in the above embodiment.

As described above, a description will be given of the case where the measurement target walking animal sets the valid data section while detecting the time point when it passes the predetermined first point and the time point when it passes the predetermined second point on the walking path on the weighing machine. In addition, as shown in FIG. 6, a pair of passage detection sensors (S) for detecting the passage position of the cow on the weighing machine (1) are provided, and the detection information of these sensors (S) is also included in the control device ( Enter in 5). (See FIG. 2) The pair of passage detection sensors (S) are configured by using a photo-interplater type optical sensor or the like, and are configured to detect the front end portion or the like of the body of the cow. The one located on the upper side in the walking direction of the cow is the starting point while the total weight load of the cow is being applied to the weighing machine (1), that is, the cow is the predetermined first point on the walking path on the weighing machine. The point on the lower side detects the starting point while the total weight load of the cow is being applied to the weighing machine (1), that is, the predetermined second point.

In order to obtain the weight by the averaging calculation from the sampling series of the effective data section, the averaging calculation may be performed using the moving average, and the weight of the walking animal may be estimated from the calculation result. That is, the moving average is performed with a width smaller than the width of the effective data section. Then, the maximum value of the moving average may be estimated as the weight of the walking animal, or the average value of the moving averages may be estimated as the weight of the walking animal.

Further, as described above, with the pair of passage detection sensors (S),
When detecting the time when the vehicle passes the predetermined first point or the predetermined second point, as shown in FIG. 7, the passage detection sensor on the lower side from the time when the passage detection sensor (S) on the upper side detects the passage. The weight of the walking animal may be obtained by setting the valid data section up to the time point when (S) detects passage, and using the moving average or weighted average described above.

As described above, by calculating the moving average or the weighted moving average as the averaging operation, the following advantages can be obtained.

That is, for example, when the weighing surface of the weighing machine is slightly higher than the general walking road surfaces located in front of and behind it, the animal trying to get on the weighing machine, and the animal going down from the weighing machine It is felt that there is a slight mental and physical fluctuation.

Therefore, in such a case, it is reasonable to understand that the animal at the intermediate position is more stable in mind and body than the animals near the entrance and exit on the weighing plane. Therefore, by calculating the moving average or the weighted moving average, it is even more important to treat the weight value when the weight is closer to the center of the weighing surface than when calculating the weight of the measured animal using the arithmetic average. Easy to measure correctly.

In addition, when the weighing surface and the walking road surface before and after it are all configured on the same horizontal plane, even when the measurement is performed or if the animal may be aware of the weighing machine, it should be located near the entrance on the weighing surface. In some cases, the body and mind of animals that have become accustomed to weighing machines are more stable than the body and mind of animals that have just entered, and the body and mind of animals that are accustomed to weighing machines are more stable. Is more advantageous than.

When calculating a moving average or a weighted moving average, the movement of the moving average is made to correspond to the memory of the person who observes the movement of the animal while the measured animal is walking on the weighing machine. By observing the average value, the weight of the animal to be measured can be read appropriately and properly.

It should be noted that the maximum value of the moving average values or the average value of the moving average values calculated as described above, or a value obtained by modifying the average value may be regarded as the weight of the walking animal.

That is, although it depends on the type of animal to be weighed, empirically, when the maximum value of the moving average value or the maximum value of the weighted moving average value is regarded as the weight of the animal to be measured, the measured weight value is It seemed easy to match with.

In particular, when the weighing surface is higher than the surface of the walkway in front of and behind it, there is a small amount of upward weight speed near the time of getting on the weighing surface, and there is a partial speed upward, and near the center position of the weighing surface. When the animal is trying to get out of the weighing surface next time, the weighing value appears a little small as the animal tries to descend to the lower road with the legs slightly bent, so the above movement It seems appropriate to consider the maximum mean value as the weight of the animal being measured.

When calculating the average value of the above two moving average values, the weighing value in the position close to the center of the weighing surface is calculated most importantly, so that a relatively correct weight value is obtained for the same reason as above. it is conceivable that.

Furthermore, the weight calculated by the above-mentioned averaging operation or the like is not immediately regarded as the weight of the walking animal, but is multiplied by a correction coefficient obtained in advance by experiments or the like, or
It is also possible to further improve the measurement accuracy by adding and subtracting the correction values obtained in advance by experiments,
The calculated average value or a value obtained by applying a correction value thereto may be regarded as the weight of the walking animal.

4 That is, by comparing the numerical values of the results of various calculations according to the techniques of claims 15 to 19 as described above with the weighing value measured in a stationary state by anesthetizing the animal to be measured, By obtaining the correction value and then correcting the calculated values, the correct static weight of the measured animal can be read more correctly.

That is, the weight calculated by the above-described averaging operation or the like is not immediately regarded as the weight of the walking animal, but is multiplied by a correction coefficient obtained by an experiment or the like, or a correction value obtained by an experiment or the like is added or subtracted. Thereby, the measurement accuracy can be further improved. That is, there is a possibility that a difference may occur between the weight calculated by the above-described averaging operation and the like and the weight measured while the walking animal is stationary. Therefore, correction data such as a correction coefficient or a correction value for correcting the difference is obtained in advance by an experiment or the like, and the calculated weight is corrected by the correction data obtained in advance, thereby further improving the measurement accuracy. By the way, the above correction data is for cow, horse, sheep,
It is better to decide according to the type of walking animals such as goats and chickens. The reason for this is that there are differences in the way of walking, differences in body shape, etc. depending on the type of walking animal, and therefore the above differences vary depending on the type of walking animal.
In addition, when measuring the weight of the walking animal, the anesthesia may be used as necessary as described above.

In carrying out the invention of claims 1 to 20, by using a radio signal tag held by each animal, the characteristic and physical condition of the weighed animal to be weighed are read by a management device on the side of the weighing machine. By adjusting the set values in claims 4 to 8 to the set values most suitable for the animal to be weighed, the weight of the animal to be weighed can be read more accurately from the weighing machine.

In addition to calculating the weight from the sampling series of the effective data section, in addition to averaging calculation, for example, the section with the smallest amplitude in the sampling series of the effective data section is calculated, and the median value of the data in that section is estimated as the weight You can make various changes such as

In addition, if a damper device that controls the damping of the weighing platform (1a) is added to suppress the vibration of the sampling series, it is possible to further improve the measurement accuracy.

Further, the present invention is characterized in that the outlet of the weighing machine (1) is opened, and the inlet may be closed as necessary. That is, according to the present invention, since one walking animal is placed on the weighing machine (1) for measurement, it is intended to prevent the following walking animal from riding on the weighing machine (1). You may provide the gate etc. which open and close an entrance.

Further, in carrying out the present invention, it is also advantageous from a practical point of view that a plurality of the weighing scales (1) are arranged side by side in the lateral direction of the walking path and used together for measurement. . That is, it can be expected that each of a plurality of walkable animals walking side by side in the lateral direction can walk with a sense of security by seeing the walking of an adjacent animal.

Furthermore, in the above description, the weight measurement of one walking animal has been described, but it is also possible to measure the weight of the group by grouping a plurality of animals.

Further, it is effective to use the restraint tool (2a) as in the above-mentioned embodiment to walk the walking animal in a straight line or in a substantially straight line on the weighing machine (1). But it is possible.

That is, the upper surface of the weighing machine (1) should be higher than the road surface of the walkway (it may be several tens of centimeters higher if necessary), and the width of the weighing machine (1) should be adjusted by the walking animal. Keep the minimum width required to walk. In this case, the scale (1)
It is effective to provide an inclined passage portion for raising and lowering, which is connected to the inlet side and the outlet side of the. (Refer to FIG. 8) In addition, the restricting tool (2a) may be provided and the restricting tool (2a) may be connected to the weighing machine (2a) in order to carry out the present invention. And
The height of the restraint (2a) can be selected in various ways, but as shown in Fig. 1, if the height is lower than the height of the animal's head, the animal will not feel a sense of restraint and the animal will be stable. It may be effective for walking.

Further, the animal walking surface of the weighing machine (1) may be provided with a slip stopper.

When the weighing surface of the weighing machine (1) is slippery for the animal, when the animal walks on the weighing surface, the user feels this slipping on the way and suddenly kicks the weighing surface to make rapid walking. , And sudden changes may occur during walking.

Therefore, there is an advantage that it is easy to perform good weighing by avoiding abrupt changes due to the non-slip on the weighing surface. A wood surface or a metal surface having a large number of irregularities may be used for the weighing surface to prevent slippage.

Note that, in the claims, reference numerals are written for convenience of the drawings, but the present invention is not limited to the structure of the attached drawings by the entry.

[Brief description of the drawings]

The drawings show the principle configuration of the present invention. FIG. 1 is a schematic diagram of the overall configuration, FIG. 2 is a block diagram, FIGS. 3 to 5 are diagrams showing various states of a weighing signal, and FIG. FIG. 7 is a schematic plan view of another embodiment, FIG. 7 is a diagram showing setting of an effective section of another embodiment, and FIG. 8 is a schematic view of the entire configuration of another embodiment. (1) …… Weighing machine, (1a) …… Load cell, (2a) …… Regulator, (6) …… Display unit, (100) …… Weight calculation means.

Continuation of the front page (56) Reference JP-A 63-81221 (JP, A) JP-A 60-138472 (JP, A) JP-A 59-73735 (JP, A) JP-A 49-30170 (JP , A) Actual development 61-205034 (JP, U) US Patent 4288856 (US, A)

Claims (7)

(57) [Claims] 1. A method for measuring the weight of a walkable animal, which comprises (1) making the walkable animal in a straight line or in a substantially straight line from an inlet to an open outlet on a weighing machine (1). While walking, (2) the weighing values while the animal walks on the weighing machine (1) are sequentially taken in as a sampling series, (3) an effective data section is set from the sampling series, and (4) the effectiveness The weight of the walking animal is read from the sampling series in the data section (5) A method for measuring the weight of the walking animal. 2. A method for measuring the weight of a walkable animal according to claim 1, wherein the animal is allowed to walk along a straight or substantially straight path on the weighing machine (1). (1) The length of the walking path of the walking animal on the weighing machine (1) is such that at least the entire load of the animal can be put on the weighing machine (1) to take a plurality of steps. (2) Restrictors (2a) provided on both left and right sides of the walking path.
To prevent the animal from moving laterally outward. (3) The distance between the left and right side restraints (2a) is made slightly larger than the lateral width of the animal. is there. 3. The method for measuring the weight of an ambulatory animal according to claim 1, wherein the method of reading the weight of the walking animal to be measured from the sampling sequence stores the valid data section. The weight of the walking animal is read from the average value calculated from the weighted values. 4. The weight measuring method for an ambulatory animal according to claim 1, wherein the method for reading the weight of the walking animal is output from the weighing machine (1). The weight of the walking animal is read with the analog weight value smoothed. 5. The method for measuring the weight of a walkable animal according to any one of claims 1 to 4, wherein the weighing machine (1) used in the method is customary for the walkable animal. The measurement is performed by locating the robot in a walkway that is normally used for walking. 6. The weight measuring method for an ambulatory animal according to claim 1, wherein the weighing machine (1) used has a surface for receiving a load from a walking animal, An impact absorbing elastic material (1c) is interposed between the mechanical output point of the weighing machine and the mechanical output point. 7. A device for measuring the weight of a walkable animal, comprising: (1) allowing the walkable animal to walk along a straight or substantially straight path on the weighing machine (1). A restricting tool (2a) for restricting the lateral movement of the animal is provided on both left and right sides of the walking path, and (2) the length from the inlet to the outlet of the weighing machine (1) is At least the entire weight of the animal is placed on the weighing machine (1), and the animal is configured to have a length long enough to walk a plurality of steps. (3) The outlet of the weighing machine (1) is formed in an open state. (4) Weight calculation means (100) for calculating the weight of the animal from the weight value of the total weight of the animal being applied to the weighing machine (1) is provided, (5) the weight calculation means (100) displays the measured value while the animal is walking on the weighing machine (1). And a means for setting a valid data section from the sampling series, and a calculating section for obtaining the weight of the animal from the sampling series in the valid data section by averaging calculation. ) A display means (6) for displaying the calculation result of the weight calculation means (100) is provided. (7) A weight measuring device for a walkable animal.