TWM474970U - Wireless lost-and-found device - Google Patents

Description

Wireless device

The present invention relates to an object-seeking device, and more particularly to a wireless object-seeking device using wireless radio frequency technology.

Radio frequency identification is a fairly common technology in recent years. Its specific applications include electronic toll collection systems, access control systems, logistics management, patient identification, and the search for lost items.

In the search for lost items, the current practice is to pre-install an item with an identification tag. When the item is lost, the user can use a reader to send and receive wireless RF signals to find the item within the sensible range. After the identification tag receives the wireless radio frequency signal, a response signal is returned. Therefore, the reader can know that the identification tag is nearby by receiving the reaction signal, and indirectly achieves the purpose of finding the item. However, the general reader cannot measure the distance and direction of the identification tag. Even if the user senses that the item is nearby, the user still has to look around blindly to find the lost item, resulting in inefficiency in use. Not humanized, resulting in low acceptance of this application, can not be popularized.

Therefore, the purpose of the novel is to provide a sensible test A wireless object-seeking device that loses the distance and direction of the item.

Therefore, the novel wireless object-finding device is adapted to assist in searching for an item having an identification tag, and the identification tag stores an identification data. The wireless device includes: a wireless transceiver unit, a storage unit, a processing unit, a display unit, and an audio unit.

The wireless transceiver unit can transmit a wireless radio frequency signal to the identification tag, and can receive an identification signal with the identification data returned by the identification tag.

The storage unit is configured to store a comparison data corresponding to the identification data of the item.

The processing unit is connected to the wireless transceiver unit and the storage unit, and includes a ranging module and a determining module. The ranging module can sense the intensity of the identification signal and correspondingly calculate a distance data. The determining module can compare the identification signal with the comparison data, and generate a prompt signal after confirming that the two are the same.

The display unit is connected to the processing unit and can be driven by the prompt signal to display the distance data.

The audio unit is connected to the processing unit and can be driven by the prompt signal to emit a voice message.

The utility model has the advantages that the processing unit can calculate the distance of the item to be searched and can display the distance between the item and the item through the display unit, thereby effectively assisting the user to confirm the distance of the item and allowing the user to It is quite convenient and practical to quickly find the items that have been lost.

1‧‧‧Wireless device

11‧‧‧Wireless transceiver unit

12‧‧‧Photographic unit

13‧‧‧ storage unit

14‧‧‧Processing unit

140‧‧‧ calibration module

141‧‧‧Range module

142‧‧‧Judgement module

143‧‧‧ pointing module

15‧‧‧Display unit

16‧‧‧Audio unit

17‧‧‧Control unit

2‧‧‧ Items

21‧‧‧ Identification label

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a functional block diagram illustrating a preferred embodiment of the novel wireless object-seeking device and an article; Figure 2 is a plan view showing a screen when the display unit of the preferred embodiment is used.

Referring to Figures 1 and 2, a preferred embodiment of the novel wireless object-finding device 1 is adapted to assist a user in searching for an item 2 having an identification tag 21. The identification tag 21 stores an identification data and transmits and transmits an identification signal with the identification data. The type of the identification tag 21 is not limited, and may be, for example, an active, passive or semi-active tag. The identification information such as the product name, date of purchase, and the like.

The wireless device 1 includes a wireless transceiver unit 11, a camera unit 12, a storage unit 13, a processing unit 14, a display unit 15, an audio unit 16, and a control unit 17.

The wireless transceiver unit 11 can transmit a wireless radio frequency signal to the identification tag 21, and can receive the identification signal returned by the identification tag 21.

The photographing unit 12 can take an image of the article 2 and generate an image material. In the present embodiment, the photographing unit 12 is, for example, a photographing lens.

The storage unit 13 is connected to the photographing unit 12, and can store a pair of matching materials corresponding to the identification data of the article 2, and store the photographing The image data of the item 2 taken by the unit 12. In this embodiment, the comparison data is information such as the item name, purchase date, and the like of the item 2.

The processing unit 14 is connected to the wireless transceiver unit 11 and the storage unit 13. The processing unit 14 has a calibration module 140, a ranging module 141, a determination module 142, and a pointing module 143. The calibration module 140 can sense the identification signal returned by the identification tag 21 in a plurality of specific distances and directions, and correspondingly generate a reference data. The ranging module 141 can sense the intensity of the identification signal and correspondingly calculate a distance data. The determining module 142 can compare the identification signal with the comparison data, and generate a prompt signal after confirming that the two are the same. The pointing module 143 can sense the transmitting direction of the identification signal and correspondingly generate a direction data.

The display unit 15 is connected to the processing unit 14 and can be driven to display the distance data, the image data and/or the direction data.

The audio unit 16 is connected to the processing unit 14 and can be driven by the prompt signal to emit a voice message. In this embodiment, the sound message is, for example, a click sound, but is not limited thereto. For example, the distance data and the direction data may be continuously played in a voice manner.

The control unit 17 includes a plurality of buttons that are operable by a user to control the operation of the wireless transceiver unit 11, the photographing unit 12, the processing unit 14, and the display unit 15.

Before the item 2 is not lost, the identification tag 21 should be installed on the item 2, and then the control unit 17 is operated to enable the wireless transceiver unit 11 to transmit a radio frequency signal to the identification tag 21 to The identification data is obtained by the identification signal. Moreover, the wireless transceiver unit 11 can convert the identification data into the comparison data and store it in the storage unit 13. Then, the operating unit 17 is operated to capture the image of the article 2, and the image data is stored in the storage unit 13, and the comparison data is connected to the image data.

It should be noted that, after the comparison data is linked to the image data, the correction module 140 of the processing unit 11 can be used to determine in advance the strength of the identification signal returned by the article 2 when placed at different distances. For example, the article 2 is placed one meter and two meters away from the wireless device, and then the control unit 17 is operated to enable the wireless transceiver unit 11 to respectively transmit a radio frequency signal, so that the calibration module 140 can The identification signal strength at different distances is obtained as a comparison reference for estimating the distance of the article 2 by the distance measuring module 141 using the strength of the identification signal. In addition, the correction module 140 can also be used to determine the identification signals returned by the article 2 when placed in different orientations, for example, placing the articles 2 in the front, back, left, and right of the wireless object-finding device 1, and then operating the device. The control unit 17 causes the wireless transceiver unit 11 to respectively transmit a radio frequency signal, so that the calibration module 140 can obtain identification signals of different direction sources, so that the pointing module 143 can use the direction source of the identification signal to calculate the direction of the item 2 in the future. Benchmarking. After the calibration module 140 obtains the identification signals of different distances and directions, the calibration data is generated correspondingly and stored in the storage unit 13.

Although the present embodiment is described by only one item 2, in practical application, the present invention can obtain identification data of multiple sets of identification tags 21, and simultaneously store image data of multiple items 2 and corresponding correspondence data, and Minute Don't bind them one by one to achieve the effect of searching for different items 2.

Once the item 2 is lost, the manipulation unit 17 can be operated to cause the wireless transceiver unit 11 to transmit a radio frequency signal and drive the display unit 15 to display a picture. If the item 2 is not within the receiving sensing range of the radio frequency signal, the identification tag 21 does not sense the return identification signal, and thus the processing unit 14 does not calculate the distance data or the direction data.

When the item 2 is located within the receiving sensing range of the radio frequency signal, the identification tag 21 is inductively triggered and transmits the identification signal. In the process, in order to avoid the erroneous search caused by receiving the identification signal sent by the non-search item 2, after the wireless transceiver unit 11 receives the identification signal, the determining module 142 of the processing unit 14 first determines that the identification signal is carried. Whether the identification data conforms to the comparison data stored by the storage unit 13. If it is met, the ranging module 141 and the pointing module 143 respectively analyze and calculate the strength and direction of the identification signal, and refer to the reference data in the storage unit 13 to calculate the distance data and direction correspondingly. data. Finally, the determining module 142 generates the prompting signal to continuously drive the display unit 15 to display the distance data, the direction data, and the image data. On the other hand, the prompt signal also continuously drives the audio unit to play the sound message to further remind the user that the item 2 is close.

As shown in FIG. 2, the display unit 15 can display the distance data and the direction data after receiving the prompt signal, and simultaneously display the image data linked to the comparison data. In the embodiment, the article 2 is represented by a ring, and the user can know after viewing the display unit 15 The distance and direction of the item 2 can also be seen by the image of the item 2 (i.e., the image of the ring), and the item 2 can be easily found by moving in proximity to the item 2 in the direction indicated.

In summary, the wireless searching device 1 of the present invention increases the detection distance and the direction of the indication, and can effectively assist the user to confirm the distance and direction of the falling of the article 2, and reduce the time for searching for the item 2, so It is indeed possible to achieve the purpose of this new type.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

1‧‧‧Wireless device

11‧‧‧Wireless transceiver unit

12‧‧‧Photographic unit

13‧‧‧ storage unit

14‧‧‧Processing unit

140‧‧‧ calibration module

141‧‧‧Range module

142‧‧‧Judgement module

143‧‧‧ pointing module

15‧‧‧Display unit

16‧‧‧Audio unit

17‧‧‧Control unit

2‧‧‧ Items

21‧‧‧ Identification label

Claims (4)

A wireless device for searching for at least one item having an identification tag, the identification tag storing an identification data, the wireless device comprising: a wireless transceiver unit, capable of transmitting a radio frequency signal to the identification tag, And receiving an identification signal with the identification data returned by the identification tag; a storage unit for storing a pair of identification data corresponding to the identification data of the item; a processing unit connecting the wireless transceiver unit with The storage unit includes a ranging module and a determining module. The ranging module can sense the intensity of the identification signal and correspondingly calculate a distance data, and the determining module can Comparing the comparison data, and generating a prompt signal after confirming that the two are the same; a display unit connecting the processing unit and being driven by the prompt signal to display the distance data; and an audio unit connecting the processing The unit can be driven by the prompt signal to emit a voice message. The wireless object-finding device of claim 1, further comprising a photographing unit capable of capturing an image of the article and generating an image data, the storage unit further storing the image data, wherein the display unit is further driven by the prompt signal The image data is displayed. The wireless object-finding device of claim 1, wherein the processing unit further comprises a pointing module, wherein the pointing module can sense the sending of the identification signal The direction of the shot and the corresponding calculation generate a direction data, and the display unit can also be driven by the prompt signal to display the direction data. The wireless object-finding device of claim 3, wherein the processing unit further comprises a correction module, wherein the correction module can sense the identification signal returned by the identification tag at a plurality of specific distances and directions respectively. And correspondingly generate a reference data.