CN112042554A - Pig exercise amount monitoring device and exercise amount detection scoring method thereof - Google Patents
Pig exercise amount monitoring device and exercise amount detection scoring method thereof Download PDFInfo
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Abstract
The invention discloses a pig exercise amount monitoring device, which comprises a shell, a printed circuit board and a power supply, wherein the printed circuit board is arranged on the shell; the printed circuit board is integrated with a micro control unit, a ZigBee module and an acceleration module; the acceleration module is a three-axis accelerometer, and the ZigBee module is used for transmitting the received exercise amount information and the score information to the base station; the micro control unit acquires the acceleration information by using serial port communication, calculates the acceleration information to obtain the exercise amount information of the pig and sends the exercise amount information to the ZigBee module; the ZigBee module and the acceleration module are awakened/dormant as required; the device has three operation modes, namely a charging mode, an active measurement mode and a passive wake-up mode; the three operation modes are realized by controlling the awakening/sleeping states of the micro control unit, the acceleration module and the ZigBee module. Meanwhile, the exercise amount detection and scoring method based on the pig exercise amount monitoring device is used for monitoring the daily exercise amount of the pig and carrying out primary judgment on whether the pig is oestrous.
Description
Technical Field
The invention belongs to the field of monitoring devices for livestock, and particularly relates to a pig exercise amount monitoring device based on a triaxial accelerometer and an exercise amount detection scoring method thereof.
Background
The existing monitoring equipment for the pigs is mainly used for the technical field of estrus identification of sows, and whether the sows are in estrus is judged according to information such as body temperature, exercise amount and food intake. Such devices require a variety of sensing devices such as temperature sensors, vibration sensors, microphones, etc., resulting in large devices and high power consumption. Statistically, the amount of exercise in estrus in mammals is roughly four to five times that of non-estrus. Therefore, the oestrus condition of the pig can be judged primarily simply and easily by the exercise amount of the pig.
In addition, the health of the pigs can be judged through the amount of exercise, for example, the amount of exercise of each pig is counted through the daily movement distance, frequency, time and other information of each pig, so that whether the pig is healthy or whether the pig needs to increase the amount of exercise or reduce the amount of exercise is judged, and a breeder in a pig farm can drive the pigs with unqualified amount of exercise out of the room to continue to move according to the index of the amount of exercise, so that healthy pigs are produced. Because the daily exercise capacity of the free-ranging pigs is large, the meat quality is more compact, and therefore the daily exercise capacity monitoring of the free-ranging pigs is very necessary.
Analog devices of the united states company (ADI) has a low power consumption tri-axial accelerometer that processes motion signals. The power consumption current of the triaxial accelerometer is reduced to 200mA (under the condition of 2.0V power supply voltage), and the triaxial accelerometer is an ultra-low power consumption product in the existing similar device.
Therefore, the pig exercise amount monitoring device with low power consumption and small equipment volume and the exercise amount detection and scoring method thereof are needed.
Disclosure of Invention
The invention aims to provide a small-size low-power consumption monitoring device and a motion amount detection and scoring method thereof. The device does not need to consume a large amount of manpower to identify the oestrus of the sows and monitor the pig exercise amount, the existing three-axis accelerometer is used for calculating the pig exercise amount, and the gateway is used as a terminal to upload the detected exercise amount information to the base station, so that a breeder can conveniently monitor the pig exercise amount; the monitoring device can operate in three operation modes, and when the amount of exercise is not counted or charging is carried out, each module of the device operates in a sleep mode, so that the energy consumption is reduced. Meanwhile, the exercise amount detection and scoring method using the pig exercise amount monitoring device is further disclosed, and is used for judging the exercise amount of the pig, so that a breeder can make preliminary judgment on the oestrus condition of the pig according to the exercise amount value, and meanwhile, the cloud computer system can evaluate the quality of meat according to the exercise amount data.
A pig exercise amount monitoring device includes: a housing, a printed circuit board and a power supply;
the printed circuit board is integrated with a micro control unit, a ZigBee module and an acceleration module;
the acceleration module is a three-axis accelerometer and is used for acquiring acceleration information of the pig;
the ZigBee module is electrically connected with the acceleration module and the micro control unit and is used for transmitting the received exercise amount information and the score information to the base station.
The micro control unit acquires the acceleration information by using serial port communication, calculates the acceleration information to obtain the exercise amount information of the pig, and sends the exercise amount information to the ZigBee module; the ZigBee module and the acceleration module are awakened/dormant as required; and the micro control unit, the ZigBee module and the acceleration module are electrically connected.
Furthermore, the power supply is a rechargeable battery, and the shell is provided with a magnetic suction head for charging.
Furthermore, still be provided with orientation module on monitoring devices's the printed circuit board for gather the positional information who is monitored the animal.
Furthermore, the monitoring device also comprises an intelligent ear tag used for storing the pig number and the birth date.
The device has three operation modes, namely a charging mode, an active measurement mode and a passive wake-up mode.
The device realizes three operation modes by controlling the awakening/sleeping states of the micro control unit, the acceleration module and the ZigBee module.
In the charging mode, the micro control unit is firstly awakened, and after the acceleration module and the communication module are dormant, the micro control unit enters the dormancy.
In the active measurement mode, the micro control unit is awakened at a preset time, and then the acceleration module and the ZigBee module are awakened to acquire and calculate the exercise amount information and transmit data; after one measurement is finished, the micro control unit, the acceleration module and the ZigBee module enter the sleep mode to wait for the next awakening.
Passive wake-up mode: when the micro control unit, the acceleration module and the ZigBee module are in sleep states and a pig acts suddenly, the acceleration module is waken up firstly, and then the micro control unit and the ZigBee module are waken up to collect and calculate running momentum information and transmit data.
The three modes are switched as follows:
switching between active measurement mode and charging mode: when the micro control unit detects that an external charging device is connected to the device for charging, entering a charging mode; after charging is finished, entering an active measurement mode;
switching between active measurement mode and passive wake-up mode: when the device is in an active measurement mode, if the quantity of motion received continuously for 3-10 times in the micro control mode is less than a preset static threshold value, entering a passive wake-up mode; when the device is in a passive wake-up mode, if the exercise amount continuously received for 3-10 times in the micro-control mode is more than or equal to a system set value, entering an active measurement mode;
switching between the passive wake-up mode and the charging mode: when the device is in a passive wake-up mode, when the micro-control unit detects that a charging plug is inserted into the device, entering a charging mode; and after the charging is finished, entering a passive awakening mode.
The system setting value is a dynamic threshold value obtained by analyzing data sampled by the acceleration module.
Optionally, the active measurement mode and the passive wake-up mode are switched as follows:
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, taking the maximum value and the minimum value as dynamic thresholds, and taking the axis with the maximum change in the three axes as an active axis;
and comparing the dynamic threshold with the static threshold, and if the dynamic threshold is less than the static threshold for 5 times continuously, switching the operation mode to the passive awakening mode.
In conclusion, by switching the three modes and optimizing the battery, the pig exercise amount information can be timely and effectively detected, the power consumption of the system is greatly reduced, and meanwhile, the small size and the light weight are guaranteed.
An exercise amount detection scoring method applying a pig exercise amount monitoring device comprises the following steps:
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, and taking the maximum value and the minimum value as a dynamic threshold;
comparing the dynamic threshold with a preset static threshold, counting 0 point if the dynamic threshold is less than the static threshold for 3-8 times continuously, otherwise, carrying out the next step;
sampling the sampling value of the active shaft at high precision, if the current sampling value is smaller than a dynamic threshold value and the last sampling value of the current sampling value is larger than the dynamic threshold value, considering that the pig has performed 1 action, and if not, considering that no action occurs, and counting b points; if the motion is continuously performed for 3-8 times, judging that the motion intensity is too high, and counting a, wherein the value of a is greater than the value of b;
repeating the steps, and uploading the scoring information obtained by the micro control module to a base station through a ZigBee module;
and (4) counting the sum of the a value and the b value of the day in the base station to obtain the exercise amount of the day, and comparing the exercise amount of the day with the exercise amount of the last day, thereby monitoring the exercise amount of the day of the pig and carrying out primary judgment on whether the pig is oestrous.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the device adopts the triaxial accelerometer with low energy consumption to count the pig exercise amount, and uses the gateway as a terminal to upload the detected exercise amount information to the base station, thereby facilitating the monitoring of the pig exercise amount by a breeder;
2. the device can run in three running modes, when the amount of exercise is not counted or charging is carried out, each module of the device runs in a sleep mode, energy consumption is reduced, the standby time is long, and the device can really achieve an extremely low power consumption and an ultra-long working mode;
3. the exercise amount detection scoring method using the pig exercise amount monitoring device is used for judging whether the exercise amount of the pig is too high or not, and is beneficial for a breeder to preliminarily judge the oestrus condition of the pig according to the exercise amount; and the method is also suitable for judging whether to switch the operation mode or not when the monitoring device is in the passive wake-up mode.
Drawings
Fig. 1 is a schematic data transmission diagram of a pig exercise amount monitoring device according to the invention;
fig. 2 is a flowchart of the exercise amount detection and scoring method using the pig exercise amount monitoring device according to the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail with reference to the drawings and specific embodiments, which are only illustrative and not intended to limit the present invention.
As shown in fig. 1, a pig exercise amount monitoring device includes: a housing, a printed circuit board and a power supply. The power is rechargeable battery, be provided with the magnetic suction head that is used for charging on the shell.
The printed circuit board is integrated with a micro control unit, a ZigBee module and an acceleration module;
the acceleration module is used for collecting acceleration information of the pig, a three-axis accelerometer ADXL362 of an ADI company sold in the market is adopted in the embodiment and used for collecting the acceleration information of the pig, the collected acceleration information is sent to the micro control unit (MCU for short) through serial port communication to be processed and calculated so as to obtain exercise amount information of the pig, the MCU sends the exercise amount information to the ZigBee module through a ttl serial port, and the ZigBee module sends the exercise amount information to the base station to be used for counting the exercise amount in the day and compares the exercise amount information with the exercise amount value in the day, so that whether the pig is estrualized is preliminarily judged.
For miniaturization and cost reduction, the micro-control unit adopts a commercially available MSP430G2553 with ultra-low power consumption. The micro control unit is electrically connected with the ZigBee module, the acceleration module and the power module respectively.
In consideration of the stability and low power consumption index and mass-to-volume ratio of the present invention, the power supply employs a 15mm by 27mm rechargeable large capacity lithium battery.
In addition, in consideration of the practicability of the invention, the printed circuit board of the monitoring device is also provided with a positioning module for collecting the position information of the pig. When the free-range pig is raised, the position of the pig can be positioned and monitored as required, and the pig is prevented from being lost.
In addition, the monitoring device also comprises an intelligent ear tag used for storing the pig number and the birth date.
The device has three operation modes, namely a charging mode, an active measurement mode and a passive wake-up mode. Three operation modes are realized by controlling the awakening/sleeping states of the micro control unit, the acceleration module and the ZigBee module. Wherein,
and (3) charging mode: the battery is charged through the external magnetic suction head, the charging voltage and the charging current can be set independently through the built-in charging chip, and the battery charging device has the functions of reverse connection prevention, overheating protection and the like. In the present embodiment, the charging current is set to 100mA, the charging voltage is set to 3.65V, and the charging can be completed in about 4 hours. And when charging, starting the micro control unit according to the instruction of the client and entering a charging mode. And after the acceleration module and the communication module are dormant, the micro control unit enters the dormancy state.
Active measurement mode: in this mode, the micro control unit is awakened at a preset time, and then enters an active measurement mode, and the timed awakening time can be set when the micro control unit leaves a factory. Then, the micro control unit sends a measurement instruction to wake up the three-axis accelerometer so as to measure the acceleration information of the pig, the acceleration information is transmitted to the micro control unit through serial port communication, then the micro control unit calculates the received acceleration information to obtain exercise amount information, and then the exercise amount information is transmitted to the zigbee module through serial port communication, and finally the zigbee module sends the exercise amount information to a router or a base station for data transmission; after one measurement is finished, the micro control unit, the acceleration module and the ZigBee module enter the sleep mode to wait for the next awakening.
Passive wake-up mode: the mode is based on the active measurement mode, electronic elements are all in a sleep state, namely, when the micro control unit, the acceleration module and the ZigBee module are in sleep states, when a pig suddenly starts to move or falls down, the acceleration module ADXL362 is waken up to collect acceleration information, the micro control unit is waken up by the acceleration module to calculate exercise amount information, and then the ZigBee module is waken up to transmit data.
The switching of the three modes is as follows:
switching between active measurement mode and charging mode: when the micro control unit detects that an external charging device is connected to the device for charging, entering a charging mode; after charging is finished, entering an active measurement mode;
switching between active measurement mode and passive wake-up mode: when the device is in an active measurement mode, presetting a static threshold value of 0.2m/s, and if the motion amount received continuously for 4 times in the micro control mode is less than the static threshold value, entering a passive wake-up mode; when the device is in a passive wake-up mode, if the exercise amount continuously received for 3 times in the micro-control mode is more than or equal to a system set value, the device enters an active measurement mode, so that the detection times of the device on the exercise amount are increased, and the measurement precision is improved. The system setting value is a dynamic threshold value obtained by analyzing data sampled by the acceleration module.
Optionally, the switching between the active measurement mode and the passive wake-up mode may also take the following manner:
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, taking the maximum value and the minimum value as dynamic thresholds, and taking the axis with the maximum change in the three axes as an active axis;
and comparing the dynamic threshold with the static threshold, and if the dynamic threshold is less than the static threshold for 5 times continuously, switching the operation mode to the passive awakening mode.
Switching between the passive wake-up mode and the charging mode: when the device is in a passive wake-up mode, when the micro-control unit detects that a charging plug is inserted into the device, entering a charging mode; and after the charging is finished, entering a passive awakening mode.
Through the switching of three kinds of modes and through the preferred of battery, both realized the timely effectual detection to pig amount of exercise information, greatly reduced the consumption of system again, guaranteed small in size simultaneously again, the quality is light.
The invention also comprises a motion amount detection scoring method applying the pig motion amount monitoring device, and fig. 2 shows a flow chart of the scoring method, which comprises the following steps:
carrying out smooth filtering processing on the triaxial acceleration value obtained by the acceleration module to obtain a triaxial sampling value;
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, and taking the maximum value and the minimum value as a dynamic threshold;
comparing the dynamic threshold with a preset static threshold, counting 0 point if the dynamic threshold is less than the static threshold for 3-8 times continuously, otherwise, carrying out the next step;
sampling the sampling value of the active shaft at high precision, if the current sampling value is smaller than a dynamic threshold value and the last sampling value of the current sampling value is larger than the dynamic threshold value, considering that the pig has performed 1 action, and if not, considering that no action occurs, and counting b points; if the motion is continuously performed for 3-8 times, judging that the motion intensity is too high, and counting a, wherein the value of a is greater than the value of b;
repeating the steps, and uploading the scoring information obtained by the micro control module to a base station through a ZigBee module;
and (4) counting the sum of the a value and the b value of the day in the base station to obtain the exercise amount of the day, and comparing the exercise amount of the day with the exercise amount of the last day, thereby monitoring the exercise amount of the day of the pig and carrying out primary judgment on whether the pig is oestrous.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise functions and operations described above, and that the above-described embodiments are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (8)
1. A pig exercise amount monitoring device comprises a shell, a printed circuit board and a power supply; the method is characterized in that:
the printed circuit board is integrated with a micro control unit, a ZigBee module and an acceleration module;
the acceleration module is a three-axis accelerometer and is used for acquiring acceleration information of the pig;
the ZigBee module is used for transmitting the received exercise amount information and the score information to the base station;
the micro control unit acquires the acceleration information by using serial port communication, calculates the acceleration information to obtain the exercise amount information of the pig and sends the exercise amount information to the ZigBee module; the ZigBee module and the acceleration module are awakened/dormant as required; the micro control unit, the ZigBee module and the acceleration module are electrically connected;
the device has three operation modes, namely a charging mode, an active measurement mode and a passive wake-up mode;
the device realizes the conversion of three operation modes by controlling the awakening/sleeping states of the micro control unit, the acceleration module and the ZigBee module.
2. The pig motion quality monitoring device according to claim 1, wherein the three operation modes are as follows:
in the charging mode, firstly waking up the micro control unit, and after sleeping the acceleration module and the communication module, enabling the micro control unit to enter a sleep state;
in the active measurement mode, the micro control unit is awakened at a preset time, and then the acceleration module and the ZigBee module are awakened to acquire and calculate the exercise amount information and transmit data; after one measurement is finished, the micro control unit, the acceleration module and the ZigBee module enter the sleep mode and wait for the next awakening;
passive wake-up mode: when the micro control unit, the acceleration module and the ZigBee module are in sleep states and a pig acts suddenly, the acceleration module is waken up firstly, and then the micro control unit and the ZigBee module are waken up to collect and calculate running momentum information and transmit data.
3. The pig motion amount monitoring device according to claim 1 or 2, wherein the three operation modes are switched as follows:
switching between active measurement mode and charging mode: when the micro control unit detects that an external charging device is connected to the device for charging, entering a charging mode; after charging is finished, entering an active measurement mode;
switching between active measurement mode and passive wake-up mode: when the device is in an active measurement mode, if the quantity of motion received continuously for 3-10 times in the micro control mode is less than a preset static threshold value, entering a passive wake-up mode; when the device is in a passive wake-up mode, if the exercise amount continuously received for 3-10 times in the micro-control mode is more than or equal to a system set value, entering an active measurement mode;
switching between the passive wake-up mode and the charging mode: when the device is in a passive wake-up mode, when the micro-control unit detects that a charging plug is inserted into the device, entering a charging mode; after charging is finished, entering a passive wake-up mode;
the system setting value is a dynamic threshold value obtained by analyzing data sampled by the acceleration module.
4. The pig motion quality monitoring device according to claim 1, wherein the active measurement mode and the passive wake-up mode are switched as follows:
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, taking the maximum value and the minimum value as dynamic thresholds, and taking the axis with the maximum change in the three axes as an active axis;
and comparing the dynamic threshold with the static threshold, and if the dynamic threshold is less than the static threshold for 5 times continuously, switching the operation mode to the passive awakening mode.
5. The pig motion activity monitoring device according to claim 1, wherein the power source is a rechargeable battery, and the housing is provided with a magnetic attachment for recharging.
6. The pig motion activity monitoring device according to claim 1, wherein a positioning module is further disposed on the printed circuit board for collecting position information of the monitored animal.
7. The pig motion activity monitoring device according to claim 1, further comprising an intelligent ear tag for storing pig numbers and birth dates.
8. An exercise amount detection scoring method applying a pig exercise amount monitoring device is characterized by comprising the following steps:
in an active measurement mode, carrying out smooth filtering processing on the triaxial acceleration value acquired by the acceleration module to acquire a triaxial sampling value;
sampling for multiple times, continuously updating to obtain the maximum value and the minimum value of the three-axis sampling value, and taking the maximum value and the minimum value as a dynamic threshold;
comparing the dynamic threshold with a preset static threshold, counting 0 point if the dynamic threshold is less than the static threshold for 3-8 times continuously, otherwise, carrying out the next step;
sampling the sampling value of the active shaft at high precision, if the current sampling value is smaller than a dynamic threshold value and the last sampling value of the current sampling value is larger than the dynamic threshold value, considering that the pig has performed 1 action, and if not, considering that no action occurs, and counting b points;
if the motion is continuously performed for 3-8 times, judging that the motion intensity is too high, and counting a, wherein the value of a is greater than the value of b;
repeating the steps, and uploading the scoring information obtained by the micro control module to a base station through a ZigBee module;
and (4) counting the sum of the a value and the b value of the day in the base station to obtain the exercise amount of the day, and comparing the exercise amount of the day with the exercise amount of the last day, thereby monitoring the exercise amount of the day of the pig and carrying out primary judgment on whether the pig is oestrous.
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| CN112772449A (en) * | 2021-01-20 | 2021-05-11 | 田雨光 | Automatic activity intensity monitoring, analyzing and managing system for miniature pig breeding |
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