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CN113483869B - A kind of sheep weight detection system and method - Google Patents

A kind of sheep weight detection system and method Download PDF

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CN113483869B
CN113483869B CN202110748725.9A CN202110748725A CN113483869B CN 113483869 B CN113483869 B CN 113483869B CN 202110748725 A CN202110748725 A CN 202110748725A CN 113483869 B CN113483869 B CN 113483869B
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sheep
group
ear tag
average value
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CN113483869A (en
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程曼
范才虎
袁洪波
张英杰
刘月琴
刘亚东
周猛祥
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Heibei Agricultural University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G17/00—Apparatus for or methods of weighing material of special form or property
    • G01G17/08—Apparatus for or methods of weighing material of special form or property for weighing livestock
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation

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Abstract

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.

Description

一种羊只体重检测系统及方法A kind of sheep weight detection system and method

技术领域technical field

本发明涉及一种羊养殖技术，尤其涉及一种羊只体重检测系统及方法。The invention relates to a sheep breeding technology, in particular to a sheep weight detection system and method.

背景技术Background technique

在羊的养殖过程中，因羊只的体重能够反映其生长及营养状况，故具有重要的参考价值。通过对体重的监测，养殖人员可以对喂养计划进行合理的、动态的调节，同时也可以根据不同羊只个体制定不同的喂养及管理方案，实现精准饲喂。In the process of sheep breeding, the weight of the sheep can reflect its growth and nutritional status, so it has important reference value. Through the monitoring of body weight, farmers can make reasonable and dynamic adjustments to the feeding plan, and can also formulate different feeding and management plans according to different sheep individuals to achieve precise feeding.

目前，对于羊只体重的计量主要通过人工或在辅助夹紧装置的协助下利用地磅称进行测量，这种方法费时费力，不但主观性强，而且也容易使被测量的羊只产生应激反应，对于动物和人都存在着潜在的危险和伤害。此外，这种接触式测量方法对动物的生理和心理健康都存在潜在的风险。At present, the measurement of sheep weight is mainly carried out manually or with the assistance of an auxiliary clamping device using a floor scale. This method is time-consuming and labor-intensive, and is not only highly subjective, but also easily causes the sheep to be measured to produce a stress response. , there is potential danger and injury to both animals and humans. In addition, this contact measurement method has potential risks to the physical and mental health of animals.

因此，发明一种非接触式、自动化的和精准的动物体重测量系统和方法非常必要。Therefore, it is necessary to invent a non-contact, automated and accurate animal body weight measurement system and method.

发明内容SUMMARY OF THE INVENTION

本发明的目的是提供一种羊只体重检测系统，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 purpose of the present invention is to provide a sheep weight detection system, which can read the sheep data through the RFID ear tag reader, and then the data processor calculates the continuously received weighing data of the sheep, and then the sheep can be obtained. It can realize non-contact weighing with higher accuracy and safety factor.

为实现上述目的，本发明提供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。In order to achieve the above purpose, the present invention provides a sheep weight detection system, including an electronic floor scale, the present invention also includes fences arranged on both sides of the electronic floor scale, and a detection channel is formed between the two fences, The entrance end of the detection channel is provided with an RFID ear tag reader for reading sheep ear tag information, the RFID ear tag reader is connected with a data processor, and the data processor is connected with the electronic floor scale connected.

优选的，所述数据处理器还继电器与所述电子地磅秤的电源开关相连。Preferably, the data processor is further connected to a power switch of the electronic scale.

基于羊只体重检测系统的方法，包括以下步骤：The method based on the sheep weight detection system includes the following steps:

S1、羊只由检测通道的入口端进入检测通道，RFID耳标读取器感知到羊只的耳标信息，并将耳标信息发送到数据处理器；S1. The sheep enters the detection channel from the entrance of the detection channel, and the RFID ear tag reader senses the sheep's ear tag information and sends the ear tag information to the data processor;

S2、数据处理器接收到RFID耳标读取器发送的信号，记录耳标信息，并经继电器打开电子地磅称的电源开关，使之处于工作状态；S2. The data processor receives the signal sent by the RFID ear tag reader, records the ear tag information, and turns on the power switch of the electronic weighbridge through the relay to make it in working state;

S3、电子地磅称检测到称重变化，并将称重数据按照固定频率顺序发送至数据处理器，然后将顺序接收到的称重数据按每N个分为一组，其中，N＞1，当最后一组不足N个数据时，则舍弃最后一组数据；S3. The electronic floor scale detects the weighing change, and sends the weighing data to the data processor according to the fixed frequency sequence, and then divides the sequentially received weighing data into a group for every N, where N>1, When the last set of data is less than N, the last set of data is discarded;

S4、计算每组数据中相邻两个数据之间的变化率dt：S4. Calculate the rate of change dt between two adjacent data in each set of data:

Figure BDA0003145307740000021
Figure BDA0003145307740000021

式中，si表示为前一采集时间点，si+1为si的后一采集时间点，Gsi为si时刻对应的称重数据，Gsi+1为si+1时刻对应的称重数据；In the formula, s i represents the previous collection time point, s i +1 is the next collection time point of s i , Gs i is the weighing data corresponding to time si, and Gs i+1 is the corresponding time of s i+1 . weighing data;

S5、针对每一组称重数据均计算出的N-1个数据变化率dt，去除其中绝对值最大的两项，计算其余N-3个dt的平均值

Figure BDA0003145307740000022
S5. For the N-1 data change rates dt calculated for each group of weighing data, remove the two items with the largest absolute value, and calculate the average value of the remaining N-3 dts
Figure BDA0003145307740000022

Figure BDA0003145307740000023
Figure BDA0003145307740000023

式中，dt为数据变化率，

Figure BDA0003145307740000024
为dt的平均值；In the formula, dt is the data change rate,
Figure BDA0003145307740000024
is the mean value of dt;

S6、根据步骤S4和S5计算每组的平均值

Figure BDA0003145307740000025
然后对所有
Figure BDA0003145307740000026
值按照从小到大的顺序进行排序；S6. Calculate the average value of each group according to steps S4 and S5
Figure BDA0003145307740000025
then for all
Figure BDA0003145307740000026
Values are sorted in ascending order;

S7、排序后，由大到小去除排序后前20％的

Figure BDA0003145307740000027
值，剩余80％的
Figure BDA0003145307740000028
值所对应的每组数据为有效数据组；S7. After sorting, remove the top 20% after sorting from large to small
Figure BDA0003145307740000027
value, remaining 80% of
Figure BDA0003145307740000028
Each group of data corresponding to the value is a valid data group;

S8、针对每组有效数据组，按照从小到大排序，并去除前10％和后10％的数据，并对每组剩余数据求取平均值；S8. For each group of valid data groups, sort them from small to large, remove the first 10% and the last 10% of the data, and calculate the average value of the remaining data for each group;

S9、对求得的每组平均值，去掉最大平均值和最小平均值，对剩余的平均值再次取平均值G，该值即为测得的羊只最终体重值。S9. For each group of average values obtained, remove the maximum average value and the minimum average value, and take the average value G again for the remaining average values, which is the final measured weight value of the sheep.

优选的，在步骤S2中，耳标信息至少包括羊只的编号信息。Preferably, in step S2, the ear tag information includes at least the serial number information of the sheep.

优选的，在步骤S3中，N＝20。Preferably, in step S3, N=20.

因此，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，不但能够有效的降低人工劳动强度和成本，又能够准确快速的获取羊只的体重数据，准确度和安全系数更高。Therefore, the present invention adopts the sheep weight detection system with the above structure, and the sheep data can be read through the RFID ear tag reader, and then the data processor calculates the weight data continuously received by the sheep, and then the sheep can be obtained. It realizes non-contact weighing, which can not only effectively reduce labor intensity and cost, but also obtain sheep weight data accurately and quickly, with higher accuracy and safety factor.

下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

附图说明Description of drawings

图1为本发明的实施例一种羊只体重检测系统的结构示意图；1 is a schematic structural diagram of a sheep weight detection system according to an embodiment of the present invention;

图2为本发明的实施例一种羊只体重检测系统的电路原理图；2 is a schematic circuit diagram of a sheep weight detection system according to an embodiment of the present invention;

图3为本发明的实施例一种羊只体重检测系统的逻辑流程图。FIG. 3 is a logic flow chart of a sheep weight detection system according to an embodiment of the present invention.

其中：1、RFID耳标读取器；2、数据处理器；3、电子地磅秤；4、围栏。Among them: 1. RFID ear tag reader; 2. Data processor; 3. Electronic floor scale; 4. Fence.

具体实施方式Detailed ways

以下将结合附图对本发明作进一步的描述，需要说明的是，本实施例以本技术方案为前提，给出了详细的实施方式和具体的操作过程，但本发明的保护范围并不限于本实施例。The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the present embodiment takes the technical solution as the premise, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the present invention. Example.

图1为本发明的实施例一种羊只体重检测系统的结构示意图；图2为本发明的实施例一种羊只体重检测系统的电路原理图；图3为本发明的实施例一种羊只体重检测系统的逻辑流程图，如图所示，本发明的结构包括电子地磅秤3，本发明还包括设置于所述电子地磅秤3两侧的围栏4，两个所述围栏4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1，所述RFID耳标读取器1与数据处理器2相连，所述数据处理器2还与所述电子地磅秤3相连。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 circuit schematic diagram of a sheep weight detection system according to an embodiment of the present invention; FIG. 3 is a sheep weight detection system according to an embodiment of the present invention. The logic flow chart of the weight detection system, as shown in the figure, the structure of the present invention includes an electronic floor scale 3, and the present invention also includes fences 4 arranged on both sides of the electronic floor scale 3, between the two fences 4 A detection channel is formed, and the entrance end of the detection channel is provided with an RFID ear tag reader 1 for reading sheep ear tag information, the RFID ear tag reader 1 is connected with the data processor 2, and the data The processor 2 is also connected with the electronic scale 3 .

优选的，所述数据处理器2还继电器与所述电子地磅秤3的电源开关相连。Preferably, the data processor 2 is also connected to the power switch of the electronic scale 3 by a relay.

基于羊只体重检测系统的方法，包括以下步骤：The method based on the sheep weight detection system includes the following steps:

S1、羊只由检测通道的入口端进入检测通道，RFID耳标读取器1感知到羊只的耳标信息，并将耳标信息发送到数据处理器2；S1. The sheep enters the detection channel from the entrance end of the detection channel, and 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、数据处理器2接收到RFID耳标读取器1发送的信号，记录耳标信息，并经继电器打开电子地磅称3的电源开关，使之处于工作状态；S2. The data processor 2 receives the signal sent by the RFID ear tag reader 1, records the ear tag information, and turns on the power switch of the electronic weighbridge 3 through the relay to make it in working state;

优选的，在步骤S2中，耳标信息至少包括羊只的编号信息；Preferably, in step S2, the ear tag information includes at least the serial number information of the sheep;

S3、电子地磅称3检测到称重变化，并将称重数据按照固定频率顺序发送至数据处理器，然后将顺序接收到的称重数据按每N个分为一组，其中，N＞1，当最后一组不足N个数据时，则舍弃最后一组数据(因最后一组数据采集时，羊只即将走出电子地磅秤的称重区域，故舍弃不用)；S3. The electronic floor scale 3 detects the weighing change, and sends the weighing data to the data processor according to the fixed frequency sequence, and then divides the sequentially received weighing data into a group for every N, where N>1 , when the last set of data is less than N, the last set of data is discarded (because the sheep are about to walk out of the weighing area of the electronic floor scale when the last set of data is collected, so they are discarded and not used);

优选的，在步骤S3中，N＝20；Preferably, in step S3, N=20;

S4、计算每组数据中相邻两个数据之间的变化率dt：S4. Calculate the rate of change dt between two adjacent data in each set of data:

Figure BDA0003145307740000041
Figure BDA0003145307740000041

式中，si表示为前一采集时间点，si+1为si的后一采集时间点，Gsi为si时刻对应的称重数据，Gsi+1为si+1时刻对应的称重数据；In the formula, si represents the previous acquisition time point, si+1 is the next acquisition time point of si, Gs i is the weighing data corresponding to time si , and Gs i+1 is the corresponding time of si+1 . weighing data;

S5、针对每一组称重数据均计算出的N-1个数据变化率dt，去除其中绝对值最大的两项，计算其余N-3个dt的平均值

Figure BDA0003145307740000042
S5. For the N-1 data change rates dt calculated for each group of weighing data, remove the two items with the largest absolute value, and calculate the average value of the remaining N-3 dts
Figure BDA0003145307740000042

Figure BDA0003145307740000043
Figure BDA0003145307740000043

式中，dt为数据变化率，

Figure BDA0003145307740000044
为dt的平均值；In the formula, dt is the data change rate,
Figure BDA0003145307740000044
is the mean value of dt;

S6、根据步骤S4和S5计算每组的平均值

Figure BDA0003145307740000051
然后对所有
Figure BDA0003145307740000052
值按照从小到大的顺序进行排序；S6. Calculate the average value of each group according to steps S4 and S5
Figure BDA0003145307740000051
then for all
Figure BDA0003145307740000052
Values are sorted in ascending order;

S7、排序后，由大到小去除排序后前20％的

Figure BDA0003145307740000053
值，剩余80％的
Figure BDA0003145307740000054
值所对应的每组数据为有效数据组；S7. After sorting, remove the top 20% after sorting from large to small
Figure BDA0003145307740000053
value, remaining 80% of
Figure BDA0003145307740000054
Each group of data corresponding to the value is a valid data group;

S8、针对每组有效数据组，按照从小到大排序，并去除前10％和后10％的数据，并对每组剩余数据求取平均值；S8. For each group of valid data groups, sort them from small to large, remove the first 10% and the last 10% of the data, and calculate the average value of the remaining data for each group;

S9、对求得的每组平均值，去掉最大平均值和最小平均值，对剩余的平均值再次取平均值G，该值即为测得的羊只最终体重值。S9. For each group of average values obtained, remove the maximum average value and the minimum average value, and take the average value G again for the remaining average values, which is the final measured weight value of the sheep.

因此，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。Therefore, the present invention adopts the sheep weight detection system with the above structure, and the sheep data can be read through the RFID ear tag reader, and then the data processor calculates the weight data continuously received by the sheep, and then the sheep can be obtained. It can realize non-contact weighing with higher accuracy and safety factor.

最后应说明的是：以上实施例仅用以说明本发明的技术方案而非对其进行限制，尽管参照较佳实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对本发明的技术方案进行修改或者等同替换，而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still The technical solutions of the present invention may be modified or equivalently replaced, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the spirit and scope of the technical solutions of the present invention.

Claims (4)

1. The utility model provides a sheep weight detecting system, includes electron weighbridge scale, its characterized in that: the electronic weighbridge is characterized by further comprising fences arranged on two sides of the electronic weighbridge, a detection channel is formed between the two fences in an enclosing mode, an RFID 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;
the method of 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:
Figure FDA0003704669310000011
in the formula, s i Expressed as the previous acquisition time point, s i+1 Is s is i The next acquisition time point, Gs i Is s is i Corresponding weighing data, Gs, at the moment i+1 Is s is i+1 Weighing 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
Figure FDA0003704669310000012
Figure FDA0003704669310000013
Wherein dt is a data change rate, j represents the jth change rate data among the N-3 change rates dt,
Figure FDA0003704669310000014
average value of dt;
s6, calculating the average value of each group according to the steps S4 and S5
Figure FDA0003704669310000021
Then for all
Figure FDA0003704669310000022
Sorting the values in the order from small to large;
s7, removing the first 20% of the sorted materials from large to small after sorting
Figure FDA0003704669310000023
Value, remaining 80%
Figure FDA0003704669310000024
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 an average value G again from the rest average values, wherein the average value G is the measured final body weight value of the sheep.
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. The sheep weight detection system according to claim 1, characterized in that: in step S2, the ear tag information includes at least the number information of the sheep.
4. The sheep weight detection system according to claim 1, characterized in that: in step S3, N is 20.
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