CN202406294U - Personal article management system based on ZigBee protocol - Google Patents

Abstract

Provided is a personal article management system based on a ZigBee protocol, comprising a plurality of pendant devices (1) in connection with an article (3) and a portable device (2). The pendant devices (1) are used for communicating with the portable device (2) through a ZigBee protocol to report own information M of the pendant devices (1); the portable device (2) is used for receiving information M sent by the pendant devices (1) so as to determine positional information of the article (3) connected with the portable device (2); the portable device (2) is provided with an alarm component used for issuing alarm sound when the information M is not received in schedule time. The system provided by the utility model can provide convenience for users to manage and look for a personal article; meanwhile the personal article management system can remind a master to carry articles which should be carried when the master is going out and timely give a prompt to the master when the article is lost or stolen.

Description

Personal belongings management system based on the ZigBee agreement

Technical field

The utility model relates to a kind of personal belongings management system, is specially a kind of personal belongings management system based on the ZigBee agreement.

Background technology

Zigbee is the synonym of IEEE 802.15.4 agreement.Technology according to this agreement regulation is the wireless communication technology of a kind of short distance, low-power consumption.This title derives from the Eight characters dance of honeybee; Since honeybee (bee) be lean on circle in the air with " drone " " dancing " of shaking wing to transmit pollen place azimuth information with the companion (zig), that is to say that the such mode of honeybee dependence has constituted the communication network in the colony.Be characterized in closely, low complex degree, self-organizing, low-power consumption, low data rate, low cost.Mainly be suitable for control and remote control field automatically, can embed various device.In brief, ZigBee is exactly a kind of cheap, the near radio networking mechanics of communication of low-power consumption.

In the life, individual belongings are more and more, for example: mobile phone, wallet, key etc. in modern times.But these article often might pass out of mind before going out, thereby cause a lot of troubles, even cause article to be lost in the somewhere.

The utility model content

In order to solve the problem that article are left behind, the utility model provides a kind of personal belongings management system based on the ZigBee agreement.

The technical scheme of the utility model is following:

A kind of personal belongings management system based on the ZigBee agreement, said personal belongings management system comprises a plurality of suspension member equipment that are connected with article, and a carry-on equipment, it is characterized in that,

● said suspension member equipment is used for carrying out communication through ZigBee agreement and carry-on equipment, with the self information M of report suspension member equipment;

● the information M that sends that said carry-on equipment is used to receive suspension member equipment, judge the positional information of the article that suspension member equipment is connected with this;

● said carry-on equipment has warning piece, is used for sending when at the appointed time Duan Wei receives information M alarm sound.

Special, said personal information M comprises the numbering and the position of article or suspension member equipment itself, said numbering is unique in system.

Preferably, said carry-on equipment sends different alarm sounds according to different information M.

Preferably, said carry-on equipment has display screen, is used to show the Item Information with the suspension member device association.

Preferably, said carry-on equipment is connected with computer, and said computer is used to control carry-on equipment and needs article managed and show Item Information, and said article refer to the article with the suspension member device association.

Special, when carry-on equipment linked to each other with computer, the user was through the position of network remote positioning object, and said article link to each other with suspension member equipment.

Preferably, the positional information of said article is a three dimensional local information, comprises three-dimensional coordinate information and/or three-dimensional image information.

Special, the ZigBee chip of the said suspension member equipment and the CC2431 of the TI of equipment employing with oneself company.

Preferably; Can only carry out the defective of two-dimensional localization to CC2431 wireless location engine; The utility model provides and adopt triangulation article to be carried out three-dimensional localization, promptly at first obtain two (X, Y) coordinate figures that triangulation and CC2431 wireless location engine calculate with the method that CC2431 wireless location engine combines; Get the average of these two coordinates then, the Z coordinate is confirmed by triangulation.

The beneficial effect of the utility model: through the system that the utility model provided, the user is the position of managing personal articles, searching article easily; Carry the article that carry when simultaneously, the owner of prompting article gos out; Also can in time remind owner in article lost or when stolen.

Description of drawings

Fig. 1 is the utility model system schematic.Wherein: 1-suspension member equipment; The carry-on equipment of 2-; The 3-article.

Fig. 2 is the algorithm sketch map that the utility model is asked coordinate.

Embodiment

The execution mode of the utility model is (like Fig. 1) as follows:

(1) for needing each article 3 of management, provides a suspension member equipment 1 to be attached thereto, and set unique identification code for said suspension member equipment 1.

(2) on carry-on equipment 2, set which article and need keep carry-on state (promptly paying close attention to article), can receive the signal that corresponding article suspension member equipment 1 sends; On this carry-on equipment 2 display screen can be arranged, be used to show Item Information; Also parts can be set on the equipment 2 with oneself, be used to be provided with the article 3 of its concern, said article 3 link to each other with suspension member equipment 1.

(3) suspension member equipment 1 with fixed frequency (as 1～10 second once; This time can be provided with; Be preferably 2 seconds once) send self information (comprising the unique number, self-position of equipment and/or article etc.) and give carry-on equipment 2; If (this time period should be greater than the information transmission frequency time corresponding section of suspension member equipment at certain hour for equipment 2 with oneself; Be preferably 1.5～5 times that send the frequency time period) in do not receive the signal that certain suspension member equipment 1 is sent, then send alarm sound (can send different alarm sounds), not at one's side with these article of prompting owner according to different suspension member equipment.

When (4) owner is in, can carry-on equipment be connected on computers, check the position (this position can be the air line distance of suspension member equipment 1 and carry-on equipment 2, also can be the three-dimensional coordinate or the figure of representation space position) at article suspension member equipment 1 place; Simultaneously, owner can be provided with suspension member equipment 1 and carry-on equipment 2 through computer, as: suspension member equipment mark symbol, information transmission frequency etc. are set; The alarm sound of the concern article of carry-on equipment, expired time of fire alarming section, various article correspondence (alarm sound can be identical, also can be different) etc.

When (5) owner leaves home, carry carry-on equipment 2, if in the way or outside the somewhere has some suspension member equipment 1 to lose, then with oneself equipment 2 can timely alarm, makes owner can avoid article stolen or lose and fall within the somewhere.

(6) also can be placed on the somewhere to each article (connecting suspension member equipment 1), be connected carry-on equipment 2 through USB interface on the computer at this place simultaneously, this computer connects network.Like this, the user just can be through the position of network remote monitoring article.This application mode also can be used for the monitoring of valuables, for example museum's collection etc.

Three-dimensional coordinate described in the above-mentioned steps (4) also can be the absolute coordinate with respect to certain fixed position in the room, need in the room, arrange at least 4 positioning equipments during realization.

The ZigBee chip of the suspension member equipment of the embodiment of the utility model and the CC2431 of the TI of equipment employing with oneself company.

Can only carry out the defective of two-dimensional localization to CC2431 wireless location engine; The utility model provides the method that adopts triangulation to combine with CC2431 wireless location engine; Realize the function of three-dimensional localization, promptly at first obtained two (X, Y) coordinate figures that triangulation and CC2431 wireless location engine calculate; Get the average of these two coordinates then, the Z coordinate is confirmed by triangulation.

Triangulation is a kind of object localization method commonly used, and it calculates the coordinate position of target with the distance between a plurality of points and the target.In a two-dimensional coordinate system, the distance of 3 reference points of minimum needs could unique coordinate of confirming any.

As shown in Figure 2, the coordinate of node m is unknown, reference point a1, and a2, the coordinate of a3 and they are known to the distance of m.Is that can to release the position be to be that center, R1 are on the circle of radius with a1 to R1 by m to the distance of a1; Can release equally also that m is positioned at a2 is that center, R2 are on the circle of radius, and to be positioned at a3 be that center, R3 are on the circle of radius to m simultaneously.These 3 circles intersect at a definite point just, so just can calculate the coordinate position of well-determined m.And in a three-dimensional coordinate system, then need add the 4th reference point a4.

Above-mentioned four reference point coordinates and measure through hard-wired at least four positioning equipments in the room to the distance of node m; Said four reference point coordinates refer to the coordinate of four positioning equipments itself, and node m need to refer to the suspension member equipment of measuring position; Usually, get final product, still,, can install, like this, can every tetrad measurement average more than 4 positioning equipments in order to improve certainty of measurement with four positioning equipments.

Usually, triangulation problem can be illustrated as: given one group of reference node x _i, y _i, z _iWith one group of range measurement r _i, solve unknown u through following equality _x, u _y, u _z

r ₁ ²＝((x ₁-u _x) ²+(y ₁-u _y) ²+(z ₁-u _z) ²)

r ₂ ²＝((x ₂-u _x) ²+(y ₂-u _y) ²+(z ₂-u _z) ²)

r ₃ ²＝((x ₃-u _x) ²+(y ₃-u _y) ²+(z ₃-u _z) ²)

r ₄ ²＝((x ₄-u _x) ²+(y ₄-u _y) ²+(z ₄-u _z) ²)

(x in the formula _i, y _i, z _i) be the three-dimensional coordinate of known node i, (u _x, u _y, u _z) be the coordinate of unknown node, r _iBe the distance of node i to unknown node.

In following formula, except that last column, each provisional capital deducts last column, the line linearity conversion of going forward side by side, and the result is following:

AU＝B

$A=\left(\begin{array}{c}(x_1-x_4)+(y_1-y_4)+(z_1-z_4)\\ (x_2-x_4)+(y_2-y_4)+(z_2-z_4)\\ (x_3-x_4)+(y_3-y_4)+(z_3-z_4)\end{array}\right)$ $U=\left(\begin{array}{c}{u}_x\\ u_y\\ u_z\end{array}\right)$

$B=\left(\begin{array}{c}{{\mathrm{<figure-callout\; id="1"\; label="r"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">r</figure-callout>}}_1}^2-{r_4}^2-{x_1}^2+{x_4}^2-{{\mathrm{<figure-callout\; id="1"\; label="y"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">y</figure-callout>}}_1}^2+{y_4}^2-{{\mathrm{<figure-callout\; id="1"\; label="z"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">z</figure-callout>}}_1}^2+{z_4}^2\\ {{\mathrm{<figure-callout\; id="2"\; label="r"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">r</figure-callout>}}_2}^2-{r_4}^2-{x_2}^2+{x_4}^2-{{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">y</figure-callout>}}_2}^2+{y_4}^2-{{\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">z</figure-callout>}}_2}^2+{z_4}^2\\ {{\mathrm{<figure-callout\; id="3"\; label="r"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">r</figure-callout>}}_3}^2-{r_4}^2-{x_3}^2+{x_4}^2-{{\mathrm{<figure-callout\; id="3"\; label="y"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">y</figure-callout>}}_3}^2+{y_4}^2-{{\mathrm{<figure-callout\; id="3"\; label="z"\; filenames="HDA0000099344620000011.png"\; state="\{\{state\}\}">z</figure-callout>}}_3}^2+{z_4}^2\end{array}\right)$

Adopt least square method, can solve U (u _x, u _y, y _z): U=(A ' A) ^-1* A ' B.The inverse matrix of A ' expression A wherein.

Adopt the ZigBee agreement though it should be noted that the utility model, clearly, adopted similar techniques (like bluetooth, wifi etc.) all to be fine.

Claims (4)

1. personal belongings management system based on the ZigBee agreement; Said personal belongings management system comprises a plurality of suspension member equipment (1) that are connected with article (3); An and carry-on equipment (2); It is characterized in that said suspension member equipment (1) is used for carrying out communication through ZigBee agreement and carry-on equipment (2), with the self information M of report suspension member equipment (1); Said carry-on equipment (2) is used to receive the information M that sends of suspension member equipment (1), judges the positional information of the article (3) that suspension member equipment (2) is connected with this; Said carry-on equipment (2) has warning piece, is used for sending when at the appointed time Duan Wei receives information M alarm sound.

2. the personal belongings management system based on the ZigBee agreement as claimed in claim 1 is characterized in that said carry-on equipment (2) has display screen, is used for showing article (3) information related with suspension member equipment (1).

3. the personal belongings management system based on the ZigBee agreement as claimed in claim 1; It is characterized in that; Said carry-on equipment (2) is connected with computer; Said computer is used to control carry-on equipment (2) and needs article managed (3) and show Item Information, and said article (3) refer to the article with the suspension member device association.

4. the personal belongings management system based on the ZigBee agreement as claimed in claim 1 is characterized in that, said suspension member equipment (1) and carry-on equipment (2) are with the ZigBee chip of the CC2431 of TI company.

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