CN116504012A - Wireless space safety system for commodity burglary prevention - Google Patents

Abstract

The invention provides a wireless space security system for commodity burglary prevention, which comprises: at least three base stations, and, at least one tag; the at least three base stations are configured for constructing a secure space; the at least one tag is configured to be operably connected to an article; the wireless space security system is configured to be able to issue a security signal and or alarm when the at least one tag enters or exits the secure space. The invention can directly carry out base station arrangement in the existing places, does not need to arrange equipment such as burglary-resisting doors, is convenient to arrange, and can be suitable for various scenes, such as desktops, exhibition stands, exhibition halls or markets.

Description

Wireless space safety system for commodity burglary prevention

Technical Field

The invention relates to the technical field of commodity theft prevention, in particular to a configuration technology of a theft prevention space.

Background

In the sales or display place of commodities, for commodities which have a certain value and are easy to conceal or take out of the place, anti-theft devices are usually provided, wherein the anti-theft devices can be attached to the commodities, can be removed from the commodities in an authorized manner under the condition that a purchaser pays or is allowed to take out of the place, can be intercepted, for example, anti-theft detection doors are arranged at positions such as a cash desk, and can send out alarm prompts once the commodities are carried away from the sales place in an unauthorized manner, so that the anti-theft door EAS system for supermarkets is common in all people. In addition, the Bluetooth-based AOA indoor space positioning technology is also used for burglary prevention in space/places.

Among these positioning technologies, we refer to the anti-theft device attached to the article as a tag, and the existing EAS and AOA technologies are to judge whether the article is in a safe state by detecting whether the tag passes through the anti-theft door/anti-theft fence without authorization, but cannot detect whether the tag and the article are separated without authorization, and if the article is separated from the tag without authorization in a place, the article is taken away from the place alone, and the tag is still in the place, at this time, anti-theft alarm cannot be realized. In addition, the EAS needs to be additionally provided with an anti-theft door, the use of the temporarily built exhibition place is inconvenient, the cost is high, the AOA needs to rely on bluetooth, the construction of the environment place is also needed to be implemented by special engineering personnel, the installation and implementation expertise is high, and the use cost is high.

Disclosure of Invention

The invention aims to provide a wireless space safety system for commodity burglary prevention, which can solve the problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a wireless space security system for article surveillance, comprising:

at least three base stations, and, at least one tag;

the at least three base stations are configured for constructing a secure space;

the at least one tag is configured to be operably connected to an article;

the wireless space security system is configured to be able to issue a security signal and/or alarm when the at least one tag enters or exits the secure space.

Further, at least two base stations of the at least three base stations are used for determining the alarm space width.

Further, at least one of the at least three base stations is configured to determine the alert space height.

Further, the alarm space depth value is configured to be preset.

Further, among the at least three base stations, the base stations communicate with each other in pairs to determine a distance from each other.

Further, the tag comprises a first detection means configured to detect its connection status with the article.

Further, the tag includes a first charging interface configured to transmit power to the tag.

Further, at least one of the at least three base stations comprises a buzzer configured for alerting.

Further, at least one remote power source is included, the remote power source configured to power the at least three base stations and tags.

Further, at least one support assembly is included, the support assembly configured to be mounted to a support surface for supporting the at least one tag.

In another aspect, the present invention may also be embodied in a wireless space security system for theft protection of goods, comprising:

a base station, and at least one tag;

the base station is configured for constructing a cube-like secure space;

the at least one tag is configured to be operably connected to an article of merchandise and configured to be capable of issuing a security signal and/or alarm when the tag is unauthorized to be removed from the article of merchandise;

the wireless space security system is configured to alert and/or issue a security signal when the at least one tag enters or exits the secure space.

The beneficial effects of the invention are as follows: (1) The invention can directly carry out base station arrangement in the existing places, does not need to arrange equipment such as burglary-resisting doors, is convenient to arrange, and can be suitable for various scenes, such as desktops, exhibition stands, exhibition halls or markets.

(2) The tag in the invention can be an anti-theft commodity tag which has an anti-theft connection relationship with the commodity, and can send out an alarm when the commodity is separated from the tag, thereby solving the problem that the tag can only be detected in the background technology.

Fig. 1 is a schematic diagram of the structure of a base station of the present invention.

Fig. 2 is a schematic structural view of the tag and the bracket of the present invention.

Fig. 3 is a schematic diagram of the structure of the alarm area of the present invention.

Fig. 4 is a schematic diagram of the design of the alarm area of the present invention.

Fig. 5 is a usage scenario diagram of the present invention.

Fig. 6 is a schematic view of fig. 5 from another angle.

Fig. 7 is another usage scenario diagram of the present invention.

Fig. 8 is a schematic view of the spatial arrangement of fig. 7.

Fig. 9 is a schematic diagram of calculation of three interior angles of a triangle in the present invention for determining whether the security tag F is out of range.

Fig. 10 is a schematic diagram showing calculation of the distance d between the vertex F and the plane of Δcab in the present invention.

Detailed Description

In order to facilitate a better understanding of the technical solution of the present invention, a few terms in the present invention are explained and explained first, and the explanation of the terms is intended to enable a person skilled in the art to more accurately understand the technical solution of the present invention, and the explanation of the terms is not intended to limit the present invention.

Commodity anti-theft device

The article theft prevention referred to in the present invention includes article theft prevention and devices, environments, and states related to article theft prevention, where devices such as security devices, monitoring devices, alarm devices, sensing devices, etc. for article theft prevention generally refer to a system for article theft prevention or an application place or application environment where a system for article theft prevention is located, and some states may include states of articles, such as safe, unsafe, normal, abnormal, stable or unstable states of articles, and may also include some states of an article theft prevention system.

The invention relates to commodity burglary prevention, which can also comprise some other content related to commodity burglary prevention, and relates to the retail industry, the exhibition industry, the display industry and the like related to commodities.

In general, the present merchandise anti-theft can be used for some merchandise, such as electronic products, which need to be functionally displayed to a buyer or a potential buyer, and some functions of these merchandise need to be known to a user in a use situation, these merchandise usually have some man-machine interactive interface, and the displayed person can touch and exemplarily or illustratively use all or part of the functions of these merchandise in a certain range, so as to understand the performance of the merchandise, in the industry, sometimes refer to the merchandise with functional display requirement as merchandise with experience requirement, i.e. the displayed person can operate and experience the merchandise being displayed in a limited condition and range, therefore, these merchandise can be directly contacted by the experienter in a limited range of the seller or merchandise owner, such as in a sales location, but cannot take these merchandise away from the experiential location, because of the ownership of the displayed merchandise, or the merchandise owner needs to be anti-theft measures, these measures need to be taken, and the experienter need not be limited in the experience, but rather than limit the user, such as to take the experiential situation of the sales location, and the amount of the merchandise need to be taken into consideration in a certain amount of the anti-theft measure (such as in a limited condition and a certain amount of the user need of the anti-theft measure, such as in a user is usually taking the experiential measure) and the quality of the anti-theft measure need of the user has to be taken about the personal-theft condition, and the experiential measure, and the quality of the user is usually only needs to be taken by the anti-theft-proof-oriented by the user in a user-oriented about the sales location, it is therefore common to define an area that prevents the user from being taken away while, in conjunction with monitoring, preventing the user from directly using the merchandise in the defined area.

Alarm signal

The alarm signal may include a so-called security signal, which is a signal emitted from a sensor for determining whether the commodity is in a secure state.

The alarm signal or the safety signal is also a relatively well known concept in the field of commodity theft prevention, when the commodity is in an unsafe state, certain components in the commodity theft prevention system send out the safety signal, the safety signal can be an induction signal or an electric signal or a digital signal, the signal can be triggered by various modes/events in the prior art, for example, the event can be a physical connection disconnection or a circuit disconnection, the triggering mode can be the sensing component sensing, the induction signal is transmitted to corresponding equipment, the corresponding equipment can send out the safety signal according to the most basic logic judgment (yes/no) after receiving the induction signal, in the field of commodity theft prevention, the common triggering mode can be disconnection, disconnection of charging connection, disconnection from a certain installed component (original contact is removed), or a certain set mode is destroyed, the generation of the safety signal can be triggered, and the generation of the safety signal is conventional in the field.

Embodiment 1, anti-theft base station, refer to fig. 1.

In the invention, the base station can adopt an anti-theft device shown in fig. 1, the anti-theft device comprises a shell 1, a sound transmission hole 2 is arranged on the shell 1, a circuit board and a buzzer for alarming are arranged in the anti-theft device, and an anti-theft alarm circuit can be arranged on the circuit board, and the anti-theft alarm circuit can adopt an alarm circuit in the prior art, such as an alarm circuit disclosed in China patent CN 201620891812.4 or an alarm circuit disclosed in China patent CN 202123127293.4. It should be noted here that the invention can not change the alarm principle of the alarm circuit and the burglar alarm.

The anti-theft device can be used as a base station, the base station can establish data connection with the tag in a wireless communication mode, and in some embodiments, the base station can be connected with the tag in a wired mode, so that the anti-theft device can realize anti-theft and can supply power for the tag.

The anti-theft device can be internally provided with a battery position for placing a battery to supply power for the anti-theft device, or the anti-theft device is connected with an external power supply through a transformer to take power.

The burglar alarm can be fixed on the planes of the wall surface, the ground, the table top, the door plate and the like in a screw, adhesive and other modes, so that the layout of the burglar alarm system is realized.

Example 2 anti-theft tag, refer to fig. 2.

In the present invention, the security tag 3 is an important component in a wireless space security system. The tag of the invention can be provided with a charging plug 4 which is used for being combined with a charging interface of the commodity, supplying power to the commodity and simultaneously switching on an anti-theft circuit, and when the tag and the commodity are separated from each other in an unauthorized manner, the anti-theft base station or the alarm sends out an alarm signal.

In the invention, the anti-theft tag 3 can be connected to an anti-theft base station to alarm, and an alarm circuit can be arranged in the tag to send an alarm signal to the anti-theft base station or a remote control end in a wireless mode to realize remote alarm.

In addition, the invention can also provide the anti-theft bracket 5 shown in figure 2 for the commodity and the label, the anti-theft bracket 5 plays a role of supporting the combination of the commodity and the anti-theft label 3, meanwhile, a circuit board can be arranged in the anti-theft bracket 5, in some embodiments, the anti-theft bracket 5 plays a role of an anti-theft base, an alarm circuit can be arranged on the circuit board in the anti-theft bracket 5, and the label is electrically connected with the anti-theft bracket 5, so that the power supply and the communication of the alarm circuit are realized.

It should be noted that the electrical connection between the tag 3 and the anti-theft bracket 5 may take the form of electrical contacts disclosed in chinese patent CN 201921295242.2, etc. according to some prior art. The invention does not need to limit the specific connection mode of the anti-theft tag 3 and the anti-theft bracket 5. In the present invention, the anti-theft tag 3 is attached to the article, and can effectively prevent unauthorized detachment from the article, while enabling communication with the anti-theft base station 1.

Embodiment 3 the setting of the anti-theft space is described with reference to fig. 3-4.

As shown in FIG. 3, the invention can set an anti-theft space in a certain space range, such as a certain area in front of a door, through 3 base stations, and the size of the anti-theft space can be changed according to the placement positions of the base stations, so that the anti-theft space is specifically arranged according to actual needs. For example, the use field Jing Jiading of the present embodiment is a display field in which a display table is placed, on which the articles 100 for display are placed, each article 100 being provided with the anti-theft tag 3 mentioned in embodiment 2 of the present invention, and an anti-theft space 300 is required to be provided at the doorway 200 of the display field, the function of which is to prevent the articles from being taken out of the display field from the doorway.

The specific setting principle of the anti-theft space is shown in fig. 4, and the specific setting steps are as follows:

1. firstly, arranging the anti-theft base stations A and B at two ends of the bottom of an alarm area, carrying out optical communication between the anti-theft base stations A and B in a certain mode, obtaining communication flight time t according to communication response time, and calculating A, B base station distance W (namely the width of the alarm area) through time t multiplied by the speed of light;

2. the anti-theft base station C is arranged at the top of the alarm area, the anti-theft base station C can carry out optical communication with the anti-theft base station A or the anti-theft base station B, and distances L2 and L3 of the two AC/BC base stations can be obtained in the same way according to the mode in the step 1, so that a fixed triangle delta ABC is obtained;

3. presetting a depth value D of a safety area according to requirements (D represents the distance between the innermost surface of the safety area and a plane O' where delta ABC is located;

4. the anti-theft label is marked as F, the anti-theft label F can communicate with the base station A/B/C and calculate the distance between the two (the distance calculation mode is the same as that of the step 1), so that a plurality of triangles with known three sides and side lengths (delta ABF, delta CBF … …) can be obtained;

5. judging whether the anti-theft tag F exceeds the limit: knowing the delta ABF three-sided side length, three interior angles of the triangle can be obtained by cosine theorem, and the calculation mode is shown in fig. 9.

Therefore, two angle degrees of the BAF/-ABF can be calculated, when the BAF is more than 90 DEG or the ABF is more than 90 DEG, the anti-theft label F belongs to a non-safety zone when the anti-theft label F is positioned on the outer side of an alpha surface or a beta surface in the graph 5, when the BAF is less than or equal to 90 DEG and the ABF is less than or equal to 90 DEG, the anti-theft label F can be judged in the same way, and the A/B base station is placed at the bottom of the delta surface, so that the A/B base station is only required to be placed at the bottom of the delta surface or the ACF by judging whether the ACF is more than 90 DEG, further if the A/B base station is not placed at the bottom of the delta surface, the area judgment can be realized by judging the CBF in the same way, finally, the distance D between the label and the plane O ' is required to be compared with the depth value D of the preset safety zone, when the label enters the preset safety zone or not, the distance D between the label and the plane O ' can be calculated by the delta of the known edge length and the volume of the order, and the delta height of the plane O ' through the relationship of the delta length and the delta top of the CAB, and the distance D can be calculated in a mode as shown in a graph 10.

Comparing the calculated D value with the depth value D of the safety area, and when D is less than or equal to D, indicating that the tag is in the safety area.

6. By the step 5, a three-dimensional safety space can be constructed, the triggering system can be preset to give an alarm or send a safety signal when the anti-theft tag F enters the three-dimensional safety space, and conversely, the safety system can be set to give an alarm or send a safety signal when the tag leaves the safety area.

In addition, in order to further improve the stability of the system and effectively reduce the running load, the base station C may be set as a main base station, and the distance between the base station C and the tag may be used to judge that the tag is far from the alarm area, if the system is defined as that the tag enters the safety space, the system may be set to avoid starting the boundary calculation, so as to reduce the calculation load of the system, if the tag F is detected to be far from the base station C, the boundary calculation frequency may be increased, so as to effectively improve the detection sensitivity and accuracy, otherwise, if the system is defined as that the tag F is detected to be far from the safety space, the system is set to alarm, if the system is defined as that the tag F is detected to be very close from the base station C, the boundary calculation may not be started, so as to reduce the calculation load of the system, and if the tag F is detected to be far from the safety space, the boundary calculation frequency may be increased, so as to effectively improve the detection sensitivity and accuracy, and reduce the false alarm probability.

Example 4 doorway deployment, reference is made to fig. 5-6.

In this embodiment, a wireless space security system disposed at an entrance of a mall or a showroom is provided.

As shown in fig. 5, the exhibition hall has 3 entrances and exits, and three base stations are arranged at each entrance and exit, so that a wireless anti-theft space described in embodiment 3 can be formed in each entrance and exit, and as shown in fig. 6, when any commodity (attached tag) enters the wireless anti-theft space, the commodity is considered to have a theft risk, and an alarm is sent out.

Example 5 desktop deployment, refer to fig. 7-8.

In this embodiment, a wireless space security system disposed at an entrance of a mall or a showroom is provided. As shown in fig. 7, a base station is provided on both sides of the bottom of the table top and the ceiling above the table top, respectively, so that a wireless anti-theft space as described in embodiment 3 is formed around the table top, and as shown in fig. 8, when any article (attached tag) tries to leave the wireless anti-theft space, the article is considered to be at risk of theft, and an alarm is given.

In practice, the modes of embodiment 4 and embodiment 5 can also be used in combination to enhance the level of theft prevention.

Claims (11)

1. A wireless space security system for article surveillance, comprising:

at least three base stations, and, at least one tag;

the at least three base stations are configured for constructing a secure space;

the at least one tag is configured to be operably connected to an article;

the wireless space security system is configured to be able to issue a security signal and or alarm when the at least one tag enters or exits the secure space.

2. A wireless space security system for theft prevention of goods according to claim 1, wherein at least two of said at least three base stations are used to determine said alarm space width.

3. A wireless space security system for theft prevention of goods as in claim 1 wherein at least one of said at least three base stations is used to determine said alarm space height.

4. A wireless space security system for theft prevention of goods according to claim 1, characterized in that the alarm space depth value is configured to be presettable.

5. A wireless space security system for theft prevention of goods according to claim 1, wherein among said at least three base stations, the base stations communicate with each other two by two to determine the distance from each other.

6. A wireless space security system for theft protection of goods according to claim 1, characterized in that the tag comprises first detection means configured for detecting its connection status with the goods.

7. A wireless space security system for theft prevention of goods according to claim 1, wherein the tag comprises a first charging interface configured for transmitting power to the tag.

8. A wireless space security system for theft prevention of goods according to claim 1, wherein at least one of said at least three base stations comprises a buzzer configured for alerting.

9. A wireless space security system for theft prevention of goods according to claim 1, comprising at least one remote power source configured for powering the at least three base stations and tags.

10. A wireless space security system for theft prevention of goods according to claim 1, comprising at least one support assembly configured to be mounted to a support surface for supporting the at least one tag.

11. A wireless space security system for article surveillance, comprising:

a base station, and at least one tag;

the base station is configured for constructing a cube-like secure space;

the at least one tag is configured to be operably connected to an article of merchandise and configured to be capable of issuing a security signal and/or alarm when the tag is unauthorized to be removed from the article of merchandise;

the wireless space security system is configured to alert and/or issue a security signal when the at least one tag enters or exits the secure space.