阅读说明：本技术 一种羊只体重检测系统及方法 (Sheep weight detection system and method ) 是由 程曼 范才虎 袁洪波 张英杰 刘月琴 刘亚东 周猛祥 于 2021-07-02 设计创作，主要内容包括：本发明公开了一种羊只体重检测系统,包括电子地磅秤,本发明还包括设置于所述电子地磅秤两侧的围栏,两个所述围栏之间围成检测通道,所述检测通道的入口端设置有用于读取羊只耳标信息的RFID耳标读取器,所述RFID耳标读取器与数据处理器相连,所述数据处理器与所述电子地磅秤相连。本发明采用上述结构的羊只体重检测系统,可通过RFID耳标读取器读取羊只数据,而后数据处理器对应该羊只连续接收称重数据进行计算,即可得到该羊只的体重数据,实现了非接触式称重,准确度和安全系数更高。(The invention discloses a sheep weight detection system, which comprises an electronic weighbridge scale and fences arranged at two sides of the electronic weighbridge scale, wherein a detection channel is enclosed between the two fences, an RFID (radio frequency identification) ear tag reader for reading sheep ear tag information is arranged at the inlet end of the detection channel, the RFID ear tag reader is connected with a data processor, and the data processor is connected with the electronic weighbridge scale. According to the sheep weight detection system with the structure, the data of the sheep can be read through the RFID ear tag reader, and then the data processor calculates the weighing data continuously received by the sheep, so that the weight data of the sheep can be obtained, non-contact weighing is realized, and the accuracy and the safety coefficient are higher.)

1. The utility model provides a sheep weight detecting system, includes electron weighbridge scale, its characterized in that: still including set up in the rail of electron weighbridge scale both sides, two enclose into the measuring channel between the rail, measuring channel's entry end is provided with the RFID ear tag reader that is used for reading sheep ear tag information, the RFID ear tag reader links to each other with data processor, data processor with the electron weighbridge scale links to each other.

2. The sheep weight detection system according to claim 1, characterized in that: the data processor is also connected with a relay and a power switch of the electronic weighbridge.

3. A method based on the sheep weight detection system of any one of claims 1-2, which comprises: the method comprises the following steps:

s1, the sheep enters the detection channel only from the inlet end of the detection channel, and the RFID ear tag reader senses ear tag information of the sheep and sends the ear tag information to the data processor;

s2, the data processor receives the signal sent by the RFID tag reader, records the tag information, and opens the power switch of the electronic loadometer scale through the relay to make the electronic loadometer scale in the working state;

s3, detecting weighing changes by the electronic weighbridge, sending weighing data to the data processor according to a fixed frequency sequence, dividing the weighing data received in the sequence into a group of N data, wherein N is larger than 1, and discarding the last group of data when the last group of data is less than N data;

s4, calculating the change rate dt between two adjacent data in each group of data:

in the formula, s_iExpressed as the previous acquisition time point, s_i+1Is s is_iThe next acquisition time point of (Gs), Gs_iIs s is_iCorresponding weighing data, Gs, at the moment_i+1Is s is_i+1Weighing data corresponding to the moment;

s5, N-1 data calculated according to each group of weighing dataThe rate of change dt, the two terms with the largest absolute values are removed, and the average of the remaining N-3 dt values is calculated

Where dt is the rate of change of the data,average value of dt;

s6, calculating the average value of each group according to the steps S4 and S5Then for allSorting the values in the order from small to large;

s7, removing the first 20% of the sorted materials from large to small after sortingValue, remaining 80%Each group of data corresponding to the value is an effective data group;

s8, sorting each effective data group from small to large, removing the first 10% and the last 10% of data, and calculating the average value of each residual data group;

and S9, removing the maximum average value and the minimum average value from each group of average values obtained, and taking the average value G again from the rest average values, wherein the average value is the measured final body weight value of the sheep.

4. The method of claim 3, wherein the method comprises the following steps: in step S2, the ear tag information includes at least the number information of the sheep.

5. The method of claim 3, wherein the method comprises the following steps: in step S3, N is 20.

Technical Field

The invention relates to a sheep breeding technology, in particular to a sheep weight detection system and a sheep weight detection method.

Background

In the process of breeding the sheep, the weight of the sheep can reflect the growth and nutrition conditions of the sheep, so the sheep breeding method has an important reference value. Through the monitoring to the weight, breed personnel can carry out reasonable, dynamic regulation to feeding plan, also can formulate different feeding and management scheme according to only the individual of different sheep simultaneously, realize accurate feeding.

At present, the weight of the sheep is measured mainly manually or by using a pound scale with the assistance of an auxiliary clamping device, the method is time-consuming and labor-consuming, the subjectivity is high, the stress reaction of the measured sheep is easily caused, and potential danger and injury are caused to animals and people. Furthermore, such contact measurement methods present potential risks to both the physiological and psychological health of the animal.

Therefore, it is necessary to develop a non-contact, automatic and accurate animal body weight measuring system and method.

Disclosure of Invention

The invention aims to provide a sheep weight detection system, which can read sheep data through an RFID ear tag reader, and then a data processor calculates the weighing data continuously received by the sheep to obtain the sheep weight data, so that non-contact weighing is realized, and the accuracy and the safety coefficient are higher.

In order to achieve the purpose, the invention provides a sheep weight detection system which comprises an electronic weighbridge scale and fences arranged on two sides of the electronic weighbridge scale, wherein a detection channel is formed between the two fences, an RFID (radio frequency identification) ear tag reader used for reading sheep ear tag information is arranged at the inlet end of the detection channel, the RFID ear tag reader is connected with a data processor, and the data processor is connected with the electronic weighbridge scale.

Preferably, the data processor is also connected with a relay and a power switch of the electronic weighbridge.

The method based on the sheep weight detection system comprises the following steps:

s1, the sheep enters the detection channel only from the inlet end of the detection channel, and the RFID ear tag reader senses ear tag information of the sheep and sends the ear tag information to the data processor;

s2, the data processor receives the signal sent by the RFID tag reader, records the tag information, and opens the power switch of the electronic loadometer scale through the relay to make the electronic loadometer scale in the working state;

s3, detecting weighing changes by the electronic weighbridge, sending weighing data to the data processor according to a fixed frequency sequence, dividing the weighing data received in the sequence into a group of N data, wherein N is larger than 1, and discarding the last group of data when the last group of data is less than N data;

s4, calculating the change rate dt between two adjacent data in each group of data:

in the formula, s_iExpressed as the previous acquisition time point, s_i+1Is s is_iThe next acquisition time point of (Gs), Gs_iIs s is_iCorresponding weighing data, Gs, at the moment_i+1Is s is_i+1Weighing data corresponding to the moment;

s5, calculating N-1 data change rates dt aiming at each group of weighing data, removing two terms with the maximum absolute values, and calculating the average value of the rest N-3 dt

Where dt is the rate of change of the data,average value of dt;

s6, calculating the average value of each group according to the steps S4 and S5Then for allSorting the values in the order from small to large;

s7, removing the first 20% of the sorted materials from large to small after sortingValue, remaining 80%Each group of data corresponding to the value is an effective data group;

s8, sorting each effective data group from small to large, removing the first 10% and the last 10% of data, and calculating the average value of each residual data group;

and S9, removing the maximum average value and the minimum average value from each group of average values obtained, and taking the average value G again from the rest average values, wherein the average value is the measured final body weight value of the sheep.

Preferably, in step S2, the ear tag information includes at least the number information of the sheep.

Preferably, in step S3, N is 20.

Therefore, by adopting the sheep weight detection system with the structure, the data of the sheep can be read by the RFID ear tag reader, and then the data processor calculates the weighing data continuously received by the sheep, so that the weight data of the sheep can be obtained, non-contact weighing is realized, the labor intensity and cost of workers can be effectively reduced, the weight data of the sheep can be accurately and quickly obtained, and the accuracy and the safety factor are higher.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a schematic structural diagram of a sheep weight detection system according to an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of a sheep weight detection system according to an embodiment of the present invention;

fig. 3 is a logic flow chart of a sheep weight detection system according to an embodiment of the present invention.

Wherein: 1. an RFID tag reader; 2. a data processor; 3. an electronic weigh scale; 4. and (4) fencing.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.

Fig. 1 is a schematic structural diagram of a sheep weight detection system according to an embodiment of the present invention; FIG. 2 is a schematic circuit diagram of a sheep weight detection system according to an embodiment of the present invention; fig. 3 is a logic flow diagram of a sheep weight detection system according to an embodiment of the present invention, and as shown in the figure, the structure of the present invention includes an electronic weigh scale 3, the present invention further includes fences 4 disposed on two sides of the electronic weigh scale 3, a detection channel is defined between the two fences 4, an RFID tag reader 1 for reading sheep ear tag information is disposed at an inlet end of the detection channel, the RFID tag reader 1 is connected to a data processor 2, and the data processor 2 is further connected to the electronic weigh scale 3.

Preferably, the data processor 2 is also connected with a relay and a power switch of the electronic weighbridge 3.

The method based on the sheep weight detection system comprises the following steps:

s1, the sheep enters the detection channel only from the entrance end of the detection channel, the RFID ear tag reader 1 senses the ear tag information of the sheep and sends the ear tag information to the data processor 2;

s2, the data processor 2 receives the signal sent by the RFID tag reader 1, records the tag information, and opens the power switch of the electronic loadometer scale 3 through the relay to make it in the working state;

preferably, in step S2, the ear tag information at least includes the serial number information of the sheep;

s3, the electronic weighbridge scale 3 detects the weighing change, sends the weighing data to the data processor according to a fixed frequency sequence, then divides the weighing data received in the sequence into a group of N data, wherein N is larger than 1, and discards the last group of data when the last group of data is less than N data (the sheep are only about to leave the weighing area of the electronic weighbridge scale when the last group of data is acquired, so that the sheep are discarded;

preferably, in step S3, N is 20;

s4, calculating the change rate dt between two adjacent data in each group of data:

in the formula, s_iExpressed as the previous acquisition time point, s_i+1Is s is_iThe next acquisition time point of (Gs), Gs_iIs s is_iCorresponding weighing data, Gs, at the moment_i+1Is s is_i+1Weighing data corresponding to the moment;

s5, calculating N-1 data change rates dt aiming at each group of weighing data, removing two terms with the maximum absolute values, and calculating the average value of the rest N-3 dt

Where dt is the rate of change of the data,average value of dt;

s6, calculating the average value of each group according to the steps S4 and S5Then for allSorting the values in the order from small to large;

s7, removing the first 20% of the sorted materials from large to small after sortingValue, remaining 80%Each group of data corresponding to the value is an effective data group;

s8, sorting each effective data group from small to large, removing the first 10% and the last 10% of data, and calculating the average value of each residual data group;

and S9, removing the maximum average value and the minimum average value from each group of average values obtained, and taking the average value G again from the rest average values, wherein the average value is the measured final body weight value of the sheep.

Therefore, by adopting the sheep weight detection system with the structure, the sheep data can be read by the RFID ear tag reader, and then the data processor calculates the weighing data continuously received by the sheep, so that the sheep weight data can be obtained, non-contact weighing is realized, and the accuracy and the safety coefficient are higher.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.