Commodity anti-theft safety device based on electromagnetic signal winder

Abstract

The utility model provides a commodity anti-theft safety device based on an electromagnetic signal winder. The commodity anti-theft safety device comprises a base, a first coil and the winder. The base comprises a first power supply output interface, and the first power supply output interface is configured to be capable of directly or indirectly supplying power to commodities; the winder comprises a cable, a wire spool, a second coil and a first control circuit; one end of the cable is fixed to the wire spool and electrically connected to the first control circuit, and the other end of the cable is operably connected with a commodity; the second coil is configured to receive electromagnetic waves emitted by the first coil and convert the electromagnetic waves into electric power to drive the first control circuit; and the first control circuit is configured to respond to the on-off of the connection state of the detected commodity, and can send a safety signal to the first coil through the second coil. According to the technical scheme, the design is simple and reasonable, the wire spool receives electromagnetic waves and converts the electromagnetic waves into electric energy to drive the control circuit on the wire spool to work, the service life is longer, and maintenance caused by damage is reduced.

Description

Technical Field

[0001] The utility model relates to the field of commodity anti-theft, and more specifically, to a commodity anti-theft safety device based on an electromagnetic signal wire reel. Background Art

[0002] With the development of product experience services, the display and experience functions of products are more open to buyers or potential buyers. At the same time, the requirements for product anti-theft will continue to increase. On the one hand, how to meet the various needs of experiencers as much as possible, and show all the functions of the products and the best and most convenient aspects to the experiencers as much as possible, on the other hand, to guard against possible theft by people with bad intentions, and to reduce or even eliminate the hidden dangers of possible theft of products during the display and experience process. In such an industrial environment, the product anti-theft industry came into being. The more common product anti-theft in the prior art uses an anti-theft device that is in contact with or connected to the product. When the product may be at risk of being stolen, the anti-theft device will sound an alarm or send an alarm command to the alarm to prompt the staff in the display venue.

[0003] Common display products in the prior art usually include tablet computers, laptops, mobile phones, etc. These products all need to be powered, which inevitably requires the installation of cables for connection. This requires the length of the cables to be controllable and retractable, and requires the installation of cable reels. However, in practice, the cables are often hidden under the table so that they cannot be felt by the user, which greatly causes wiring troubles and makes it difficult for the user to pick up and operate the product from a distance.

[0004] A very small number of products have cable reels installed in their anti-theft devices. However, in actual experience, the rotation of the cable reel relies on pin contact to conduct electricity, which can cause long-term wear and instability of the pins. It is often necessary to maintain the anti-theft safety devices, which in turn causes great trouble to the exhibitors. Summary of the invention

[0005] The utility model overcomes the shortcomings of the prior art and provides a commodity anti-theft safety device based on an electromagnetic signal wire reel with simple and reasonable design and long service life.

[0006] The technical solution of the utility model is as follows:

[0007] A commodity anti-theft safety device based on an electromagnetic signal wire reel, comprising a base, a first coil and a wire reel;

[0008] The base includes a first power output interface, and the first power output interface is configured to directly or indirectly supply power to the product;

[0009] The cable reel includes a cable, a cable reel, a second coil and a first control circuit; one end of the cable is fixed to the cable reel and electrically connected to the first control circuit, and the other end of the cable is operably connected to the product; the second coil is configured to receive electromagnetic waves emitted by the first coil and convert them into electricity to drive the first control circuit; the first control circuit is configured to respond to the on / off detection of the product connection status and can send a safety signal to the first coil through the second coil.

[0010] Furthermore, it also includes a detection sensor, which is connected to the other end of the cable to form a first detection loop, and the detection sensor is configured as an operable connection product.

[0011] Furthermore, it also includes a charging connection device, which is configured to be connected to the product charging interface at one end and to be operably connected to the first power output interface of the base at the other end.

[0012] Further, the first coil is configured to be relatively parallel to the second coil.

[0013] Furthermore, the second coil is configured to be fixed on the winding disk surface, and the first coil is arranged on a side of the base close to the winding disk surface.

[0014] Furthermore, the winding reel is detachably arranged in the cable reel, the second coil is configured to be fixed on the surface of the winding reel, the first coil is fixed near the surface of the winding reel of the cable reel, and the cable reel is electrically connected to the base.

[0015] Furthermore, it also includes an alarm and a second control circuit, wherein the second control circuit is configured to drive the alarm to sound an alarm in response to the safety signal received by the first coil.

[0016] Furthermore, it also includes a power supply, which is configured to supply power to the alarm and the second control circuit.

[0017] Furthermore, the base includes a first mounting opening for detachably mounting the cable reel; the base also includes a second sensor, which is configured to detect removal of the base from the supporting surface.

[0018] Furthermore, it also includes a wireless communication interface and a remote controller, and the wireless communication interface is configured to release the alarm in response to a signal from the remote controller.

[0019] The advantages of the utility model are:

[0020] The technical solution of the utility model is simple and reasonable, and a winding disk is perfectly installed in the commodity anti-theft device, and the base sends electromagnetic waves to the winding disk through the first coil and the second coil, and the winding disk receives the electromagnetic waves and converts them into electrical energy to drive the control circuit on the winding disk, and transmits signals with the base. That is, it replaces the traditional pin contact method, has a longer service life, and reduces the maintenance of such damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the first principle block diagram of the utility model;

[0022] Figure 2 This is the second principle block diagram of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the first principle block diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 5 for Figure 4 A schematic diagram of the structure after replacing another detection sensor;

[0026] Figure 6 This is a schematic diagram of the disassembly and assembly structure of the utility model;

[0027] Figure 7 This is another schematic diagram of the disassembly and assembly structure of the utility model;

[0028] Figure 8 for Figure 7 A schematic diagram of the structure from another perspective after assembly;

[0029] Fig. 9 It is a structural schematic diagram of the utility model wire reel;

[0030] Fig.10 This is a schematic diagram of the second structure of the utility model;

[0031] Fig.11 This is a schematic diagram of the structure of the second type of wire reel of the utility model;

[0032] Fig.12 This is a schematic diagram of the use state of the utility model;

[0033] Fig.13 A specific circuit design diagram for the implementation of the utility model.

[0034] Markings in the figure: base 1, first coil 2, reel 3, cable 4, power supply 5, winding reel 6, second coil 7, detection sensor 8 and first installation port 9. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific descriptions of the present invention, and their purpose is to allow those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limiting the present invention.

[0036] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "first", "second", "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. Circuits that do not specify the specific circuit design in this solution all adopt conventional designs, such as wireless communication interface design, remote control, etc.

[0038] Since the utility model belongs to a sub-field of commodity theft prevention, in order to enable those skilled in the art to better understand and implement the technical solution of the utility model, the technical terms in this field that may appear in the utility model will be uniformly explained below, and the technical terms not explained in the utility model can also refer to the conventional technical means in this field.

[0039] Anti-theft

[0040] The anti-theft referred to in the present invention refers to commodity anti-theft in a narrower sense, that is, the anti-theft of displayed commodities mentioned in the background technology, which can also be called exhibit anti-theft, and usually refers to places with commodity display needs. Commodity display usually refers to the display of electronic products, such as mobile phones, tablets, etc. Some functions of these commodities need to be used for users to understand. These commodities usually have some human-computer interactive interfaces. The exhibitors can contact and use all or part of the functions of these commodities in a demonstrative or display manner within a certain range, so as to understand the performance of the commodities. In the industry, such commodities with functional display needs are sometimes referred to as commodities with experience needs, that is, the exhibitors can operate the displayed commodities within limited conditions and scope. Therefore, these products will be directly touched by the experiencers, and these products themselves are movable and portable, so there is a great risk of theft. It is necessary to take anti-theft measures during the display of the products. These anti-theft measures do not limit the use of the experiencers, but only limit the experiencers to take them away from the place. In some cases, these anti-theft measures also need to consider not hindering the use of the experiencers as much as possible, so that they can get a better use experience. This technology or industry that takes anti-theft measures to prevent the theft of the products on display or experience while minimizing the impact of anti-theft measures on the product experience is a kind of product anti-theft, and it is also the field based on this utility model. This is different from the portable anti-theft (EAS) of items sold in mass sales. The exhibits in this utility model are a type of electronic products with a relatively special shape, such as electronic watches, smart bracelets, etc. This type of product usually has a ring-shaped part, and if there is no support, it cannot rely on its own shape to meet the functional display requirements.

[0041] Signal

[0042] A signal is a physical quantity that represents a message, such as an electrical signal that can represent different messages through changes in amplitude, frequency, and phase. There are two types of electrical signals: analog signals and digital signals. Generally speaking, information expressed in a certain physical quantity will be named after the physical quantity, such as an electrical signal, an optical signal, an acoustic signal, etc. The signal in this utility model can be an electrical signal, an electromagnetic signal, or other physical information that can be sent in a physical way and has a certain meaning and can be sent, received, and identified. The utility model does not improve this information itself, but this information may be used in the utility model and the field. The utility model improves the physical structure related to or capable of using this information.

[0043] Safety signal

[0044] Safety signal is also a well-known concept in the field of commodity anti-theft. When the commodity is in an unsafe state, certain components in the commodity anti-theft system will send out a safety signal. The safety signal can be an induction signal, an electrical signal or a digital signal. This signal can be triggered by many methods / events in the prior art. For example, the event may be a physical connection disconnection or a circuit disconnection. The triggering method may be the perception of the induction component, which transmits the induction signal to the corresponding device. After the corresponding device receives the induction signal, it can send out a safety signal based on the most basic logical judgment (yes / no). In the field of commodity anti-theft, the usual triggering method may be disconnection, disconnection of the charging connection, removal from an installed component, or destruction in a certain set way, which can all trigger the generation of a safety signal. The generation of safety signals is a conventional technology in this field.

[0045] Cables

[0046] In the present utility model, a cable is a concept of connection and / or transmission. In some cases, a cable can be a purely mechanical connection that connects two objects. In some cases, the cable can provide power transmission (strong electricity) to establish a power connection between the two parties connected by the cable, one of which can provide power to the other, or the two parties can have power transmission to each other. In some cases, the cable can provide data transmission (including weak electricity) to provide power and data connection for the two parties connected by the cable at the same time, one of which can provide power to the other or transmit data signals, or the two parties can have power and data signals to each other. In some cases, the power transmission line in the cable can be used as an induction loop, that is, a judgment factor for detecting whether the cable is connected or disconnected. For example, when there is power transmission in the cable, it can be considered that the induction loop is unblocked and the cable is in a normal connection state. At this time, if the cable is connected to the product and the anti-theft host, it can be considered that the product is in a safe state. Or, when there is signal transmission in the cable, it can also be considered that the induction loop is unblocked and the cable is in a normal connection state. At this time, if the cable is connected to the product and the anti-theft host, it can be considered that the product is in a safe state. In this case, the cable can play a sensing role, which is equivalent to playing a part of the sensor. At this time, the cable can be used as a part of the sensor. In fact, the role of cables in the anti-theft field is also a common technical means in this field. The utility model does not involve improvements in the structure and function of the cables themselves. The utility model only provides some application scenarios for cables used for commodity anti-theft.

[0047] Alarm device

[0048] An alarm device can also be called an alarm. In the field of commodity anti-theft, an alarm device is also a common anti-theft device, which is mainly used to perform alarm operations based on security signals sent by monitoring devices / sensors / cables, etc. There are many ways for alarm devices to trigger alarms in the prior art, such as triggering an alarm when an electrical connection is disconnected. This is a relatively common alarm triggering method in the field of commodity anti-theft. The utility model can also use this method. A typical example of an alarm device is an alarm, which is used to send out an alarm prompt sound to remind the staff in the sales place that the goods may be in a safe or unsafe state. Generally speaking, this alarm function of the alarm device can be called sending out an alarm signal. The alarm signal, such as an alarm prompt sound, sometimes also includes a light signal, which is called an acousto-optic alarm. The utility model does not improve the alarm itself, and can directly use the alarm in the prior art.

[0049] Warning device

[0050] In the field of commodity theft prevention, with the increasing requirements for theft prevention and display sales, traditional alarm devices have gradually been unable to adapt to higher demands due to their single function. Therefore, as an upgraded form of the alarm device, the warning device can be used as an alarm device and can also be used as an early warning device. When used as an alarm device, the warning device itself can be regarded as an alarm device. When used as an early warning device, the warning device can receive early warning signals and send out some warning signals with an alarm level lower than that of the alarm device, such as early warning signals, broadcast signals, etc. From the broadcast principle, the warning device of the utility model can be understood as the same as the alarm device.

[0051] Authorized / Unauthorized

[0052] In the present utility model, unauthorized is relative to authorized. Since there are two ways of locking and unlocking in the field of commodity anti-theft, the commodity should usually be in a locked state when it is displayed or used. In this state, the commodity will not be stolen. However, in addition to being stolen, the commodity may also be taken off the anti-theft device by the merchant. For example, when a certain commodity is no longer on display, the corresponding exhibits will also be taken down, which involves the replacement of the commodity, or when the commodity has quality problems and needs to be repaired, it may also need to be removed from the anti-theft device. When the commodity is replaced or repaired, the authorized staff (merchant) will remove the commodity from the anti-theft device. At this time, the connection between the commodity and the anti-theft device will be released, such as removing the connector from the commodity. In this case, we call it authorized, otherwise it is considered unauthorized. Authorization or unauthorization is a relatively well-known and frequently used concept in the field of commodity anti-theft. The numbers of the steps mentioned in each embodiment are only for the convenience of description, and there is no actual connection between the order of precedence. Different steps in each specific implementation manner can be combined in different sequences to achieve the utility model objectives of the utility model.

[0053] Cable reel

[0054] In the present invention, the cable reel is also a physical form, and the cable reel can be used to collect cables. Similarly, like the cable reel in the prior art, the cable reel in the present invention also has a recovery function, and can realize rotation through its internal elastic structure to realize automatic retraction of the cable. The core components of the cable reel are usually a winding drum and an elastic element.

[0055] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0056] like Figures 1 to 13 As shown, a commodity anti-theft security device based on an electromagnetic signal wire reel 3 includes a base 1, a first coil 2 and a wire reel 3.

[0057] The base 1 comprises a first power output interface, and the first power output interface is configured to directly or indirectly supply power to the commodity.

[0058] The cable reel 3 includes a cable 4, a cable reel 6, a second coil 7 and a first control circuit. One end of the cable 4 is fixed to the cable reel 6 and electrically connected to the first control circuit, and the other end of the cable 4 is operable to connect the product. The second coil 7 is configured to receive the electromagnetic waves emitted by the first coil 2 and convert them into electricity to drive the first control circuit. The first control circuit is configured to respond to the on / off detection of the connection status of the product and send a security signal to the first coil 2 through the second coil 7. This realizes a combination similar to NFC technology. The base 1 sends electromagnetic waves to the cable reel 6, and the cable reel 6 receives the electromagnetic waves and converts them into electrical energy to drive the control circuit on the cable reel 6 and transmit signals with the base 1. That is, this replaces the traditional pin contact method, has a better service life, and reduces the maintenance of such damage.

[0059] Preferably, it also includes a detection sensor 8, which is connected to the other end of the cable 4 to form a first detection loop, and the detection sensor 8 is configured to be operable to connect to the product. That is, the displayed product can be directly connected through the cable 4, and the charging loop formed is used to detect the safety of the product. Naturally, the safety of the product can also be protected by setting a corresponding detection sensor 8 to monitor the product more accurately. Specifically, Figure 4 , 5 As shown, different designs of detection sensors 8 are shown. The actual design of detection sensors 8 can adopt different designs according to different products, and there is no limitation here.

[0060] Specifically, it may also include a charging connection device, which is configured to connect the product charging interface at one end and the first power output interface of the base 1 at the other end. The first coil 2 is configured to be relatively parallel to the second coil 7, which can better transmit and receive electromagnetic waves.

[0061] The second coil 7 is configured to be fixed on the surface of the wire winding reel 6, and the first coil 2 is arranged on the side of the base 1 close to the surface of the wire winding reel 6. Or the wire winding reel 6 is detachably arranged in the cable reel 3, the second coil 7 is configured to be fixed on the surface of the wire winding reel 6, the first coil 2 is fixed near the surface of the wire winding reel 6 of the cable reel 3, and the cable reel 3 is electrically connected to the base 1. That is, in terms of the position design of the second coil 7 and the first coil 2, they can all be arranged in the cable reel 3, and the wire winding reel 6 and the cable reel 3 form a detachable structure. Or one is formed on the base 1 and the other is formed on the cable reel 3. The specific design can be as follows Figure 3 , 10 , and 11 are designed in the manner shown. Of course, the actual design can be adjusted accordingly according to the actual situation.

[0062] As a preference, Figure 1 , 2As shown, it also includes an alarm and a second control circuit, and the second control circuit is configured to drive the alarm to sound an alarm in response to the security signal received by the first coil 2. In this way, a security alarm is issued to more directly remind merchants that the goods may be in danger of being stolen. A power supply 5 may also be included, and the power supply 5 is configured to supply power to the alarm and the second control circuit.

[0063] The base 1 may include a first mounting opening 9 for detachably mounting the cable reel 3, such as Figures 4 to 8 As shown, the cable reel 3 can be installed more conveniently and quickly, and can be easily replaced and repaired in case of failure. The base 1 also includes a second sensor, which is configured to detect the removal of the base 1 from the support surface. The second sensor is configured to enhance the safety of the displayed goods.

[0064] As a preferred embodiment, a wireless communication interface and a remote controller may also be included, wherein the wireless communication interface is configured to cancel the alarm in response to a signal from the remote controller. This can effectively limit the occurrence of false alarms and quickly cancel the alarm, thereby improving the user experience of the safety device.

[0065] The specific circuit design scheme can be as follows Fig.13 As shown, only one implementation design is shown.

[0066] In summary, the perfect commodity anti-theft device of this solution is equipped with a winding disk 6, and the base 1 transmits electromagnetic waves to the winding disk 6 through the first coil 2 and the second coil 7, and the winding disk 6 receives the electromagnetic waves and converts them into electrical energy to drive the control circuit on the winding disk 6, and transmits signals with the base 1. That is, this replaces the traditional pin contact method, has a better service life, and reduces the maintenance of such damage.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A commodity anti-theft safety device based on an electromagnetic signal reel, characterized in that: It includes a base, a first coil and a winding device; The base includes a first power output interface, and the first power output interface is configured to directly or indirectly supply power to the product; The cable reel comprises a cable, a cable reel, a second coil and a first control circuit; one end of the cable is fixed to the cable reel and electrically connected to the first control circuit, and the other end of the cable is operably connected to a commodity; the second coil is configured to receive electromagnetic waves emitted by the first coil and convert them into electricity to drive the first control circuit; The first control circuit is configured to respond to the detection of the on / off state of the commodity connection and can send a safety signal to the first coil through the second coil.

2. According to claim 1, a commodity anti-theft security device based on an electromagnetic signal reel is characterized in that: It also includes a detection sensor, which is connected to the other end of the cable to form a first detection loop, and the detection sensor is configured to be an operable connection product.

3. A commodity anti-theft safety device based on an electromagnetic signal reel according to claim 1 or 2, characterized in that: It also includes a charging connection device, which is configured to be connected to the product charging interface at one end and to be operably connected to the first power output interface of the base at the other end.

4. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 1 is characterized in that: The first coil is arranged to be relatively parallel to the second coil.

5. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 1 is characterized in that: The second coil is configured to be fixed on the winding disk surface, and the first coil is arranged on a side of the base close to the winding disk surface.

6. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 1 is characterized in that: The winding reel is detachably arranged in the cable reel, the second coil is configured to be fixed on the surface of the winding reel, the first coil is fixed near the surface of the winding reel of the cable reel, and the cable reel is electrically connected to the base.

7. A commodity anti-theft security device based on an electromagnetic signal reel according to claim 1, 2, 4, 5 or 6, characterized in that: The device also includes an alarm and a second control circuit, wherein the second control circuit is configured to drive the alarm to sound in response to the safety signal received by the first coil.

8. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 7 is characterized in that: Also included is a power supply configured to supply power to the alarm and the second control circuit.

9. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 7, characterized in that: The base includes a first mounting opening for removably mounting the cable reel; the base also includes a second sensor configured to detect removal of the base from the support surface.

10. The commodity anti-theft security device based on the electromagnetic signal reel according to claim 8, characterized in that: It also includes a wireless communication interface and a remote controller, wherein the wireless communication interface is configured to release the alarm in response to a signal from the remote controller.

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