CN202093543U

CN202093543U - Active electronic tag using three-axis acceleration transducer chip

Info

Publication number: CN202093543U
Application number: CN2011200378568U
Authority: CN
Inventors: 黎磊; 何方勇
Original assignee: Invengo Information Technology Co Ltd
Current assignee: Invengo Information Technology Co Ltd
Priority date: 2011-02-14
Filing date: 2011-02-14
Publication date: 2011-12-28
Anticipated expiration: 2021-02-14

Abstract

The utility model provides an active electronic tag using a three-axis acceleration transducer chip. The active electronic tag is composed of a three-axis acceleration transducer circuit, a one-chip microcomputer circuit, a radio frequency transmitting and receiving circuit, a matching circuit, and an antenna circuit which are connected in order. A tag internal battery provides the power supply for the one-chip microcomputer circuit, the three-axis acceleration transducer circuit, and the radio frequency transmitting and receiving circuit. The electronic tag is fixed on a leg or a foot of an animal. The three-axis acceleration transducer chip is used to detect the leg motion condition of the animal. The one-chip microcomputer circuit is used to judge that the leg motion condition belongs to a normal walking and calculate the frequency of the normal walking within a period, and sends the walking condition and the frequency data to the one-chip microcomputer circuit for the pretreatment. The pretreated data are transmitted via the radio frequency transmitting and receiving circuit in the active tag to a reader-writer. In a conventional way, the farm animals are cared based on the personal experience, so the accuracy rate and the efficiency are low. The active electronic tag using the three-axis acceleration transducer chip solves the above problems, and at the same time, reduces the labor investment in the animal breeding.

Description

A kind of active electronic label that uses the 3-axis acceleration sensor chip

Technical field

The utility model belongs to field of radio frequency identification, relates to a kind of electronic tag, relates in particular to a kind of active electronic label that uses the 3-axis acceleration sensor chip.

Background technology

At present, to the management of farm captive animal colony with nurse main dependence and manually finish, because size of animal is many, artificial nurse inefficiency, when the early stage situation of physiology and pathology appears in the individuality in the animal population, very difficult by artificial judgment, and the basis for estimation of shortage accurate science.Along with the develop rapidly of RFID technology, active electronic label has communication distance advantage far away.

The utility model technology contents

In order to address the above problem, the purpose of this utility model is to provide a kind of active electronic label that uses the 3-axis acceleration sensor chip.

The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: a kind of active electronic label that uses the 3-axis acceleration sensor chip, by the 3-axis acceleration sensor circuit that is linked in sequence, single chip circuit, RF transmit-receive circuit, match circuit, antenna circuit; The label internal cell is described single chip circuit, 3-axis acceleration sensor circuit and RF transmit-receive circuit power supply.

The active electronic label of described use 3-axis acceleration sensor chip is fixed on the leg or (pin) of animal body, with described 3-axis acceleration sensor chip detection animal body leg exercise situation, and confirm to belong to normal gait and the number of times of normal gait in a period of time is added up by described single-chip microcomputer, give single-chip microcomputer with the walking situation with time logarithmic data and carry out pre-service, pretreated data are launched by active label internal radio frequency transmission circuit, receive for read write line.

The active electronic label of described use 3-axis acceleration sensor chip can carry out real-time automatic tracking to every animal movement state (or the activity in a period of time), understand the mechanics of animal according to the tracking data of a period of time, physiological situation to animal, as disease (activity is less during Animal diseases), pregnancy period (the animal pregnancy period is movable few), physiological reaction (active oestrus as animal) etc. is carried out the efficient real time monitoring.

The utility model has solved traditional approach, and judgement causes inaccurate and inefficient problem by artificial experience to the farm-animals nurse, can reduce the input to the artificial nurse of captive animal simultaneously.

Description of drawings

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is an electrical schematic diagram of the present utility model.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is described in further details below in conjunction with drawings and Examples.Should be appreciated that only non-limiting the utility model of specific embodiment described herein in order to explanation.

Consult Fig. 1,2, the active electronic label inside of this use 3-axis acceleration sensor chip comprises the 3-axis acceleration sensor circuit, single chip circuit, rf chip, match circuit, feed circuit and antenna circuit.

Three pin JB-DATA (P1.1) of single-chip microcomputer U2, JB-CLK (P1.2), JB-EN (P2.5) and JB-INT (P1.3) respectively with 13 (SDA) pin of 3-axis acceleration sensor chip U3,14 (SCL) pin, 7 (CS) pin is connected with the 8th (INT1) pin.During use, the human or animal is in motion process, leg, pin can be in three dimensions (X-direction, Y direction and Z-direction) on produce acceleration physical quantity data respectively, because this active electronic label is fixed on people's the leg (or footwear), perhaps on the animal leg, three-dimensional acceleration data on three directions bringing during the leg motion are gathered by 3-axis acceleration sensor LIS35DE, the X that collects, Y, after the acceleration physical quantity on the Z axle three-dimensional, the 8th pin of U 3 sends interrupt request by JB-INT to single-chip microcomputer, data are by JB-DATA (P1.1), JB-CLK (P1.2) sends into single-chip microcomputer, and single-chip microcomputer compares the acceleration magnitude of physical quantity analysis of three directions, monitors X when a certain moment, Y, the acceleration magnitude on three directions of Z on certain direction is higher than the acceleration magnitude on other both directions; And when the value that exceeds reaches setting value, promptly judge the step into proper motion, the single-chip microcomputer internal counter increases 1 counting and storage.At any time when read write line need read the total step number data message that this label collects, read write line can send the radio frequency modulated wave signal of tape reading order to active label, the radio frequency modulated wave signal that read write line sends is successively by the inner PCB antenna of active electronic label, low-pass filter circuit (C11, L1, C12, C13, C14, L2, C15, L3), balanced to unbalanced circuit (L4, C 16, L5, C17, C18) to 12 pin and 13 pin of transceiving chip U1, after the U1 inner decoding data are sent in the RXFIFO register, U1 (CC1100 chip) is by SI (P2.3), SO (P1.0), SCLK (P2.4) and CS (P2.0) simulation SPI interface are given single-chip microcomputer.If it is to read the count value of this label that single-chip microcomputer is judged these data, then the walking that stores time logarithmic data is once more by simulation SPI interface: S I (P2.3), SO (P1.0), SCLK (P2.4) and CS (P2.0) loopback are gone in the TXFIFO register of U1, U1 is provided with the radio frequency modulated wave signal that the digital coding of TXFIFO is processed into label according to register, by 12 pin and the output of 13 pin of transceiving chip U1, arrive balance change-over circuit (C18 through imbalance, L5, C17, C16, L4) (L 3 to low-pass filter circuit, C15, L2, C14, C13, C12, L1, C11) launch through the PCB antenna at last.The active label most of the time is in dormant state, open the electromagnetic wave mobilizing function of U1, U1 can be activated from deep sleep state periodically, if there is not packet to receive, U1 can return dormant state, when packet received, U1 signaled to U2 by DI O (P2.1) pin after packet is sent, and U2 switches to normal mode from low-power consumption mode and carries out data processing.

Claims

1. active electronic label that uses the 3-axis acceleration sensor chip, it is characterized in that: described active electronic label has the 3-axis acceleration sensor circuit that is linked in sequence, single chip circuit, RF transmit-receive circuit, match circuit, antenna circuit; The label internal cell is described single chip circuit, 3-axis acceleration sensor circuit and RF transmit-receive circuit power supply.

2. the active electronic label of use 3-axis acceleration sensor chip according to claim 1 is characterized in that: the 3-axis acceleration sensor chip in the described 3-axis acceleration sensor circuit adopts LIS35DE model chip.