Asynchronous two-factor alarm mechanism anti-theft system

Abstract

The invention provides an asynchronous double-factor alarm mechanism anti-theft system, which relates to the technical field of anti-theft alarm, and comprises an alarm, a charging anti-theft cable equipment end and a commodity, after the alarm comes out, the charging anti-theft cable equipment end is simultaneously connected to the commodity through an asynchronous double-factor anti-theft signal, TTL alarm logic and ADC alarm logic mechanisms are arranged on alarm software, and the charging anti-theft cable equipment end is connected to the commodity through the asynchronous double-factor anti-theft signal. The asynchronous double-factor alarm mechanism anti-theft system detects that TTL electric signal one-way jump or ADC electric signal one-way jump cannot trigger alarm, and triggers alarm when detecting that TTL signal jump and ADC signal jump exist at the same time or asynchronously exist at the same time, and the asynchronous double-factor alarm mechanism anti-theft system triggers alarm by detecting changes of TTL signals and ADC signals at the same time. False alarm caused by the reason that the connector is plugged and unplugged loosely in the traditional one-way detection alarm logic is avoided. Alarm is triggered only when the TTL signal and the ADC signal simultaneously or asynchronously have specific changes, so that the alarm accuracy is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of anti-theft alarm, and more specifically, particularly relates to an anti-theft system with an asynchronous dual-factor alarm mechanism. Background Art

[0002] In today's business environment, merchandise theft prevention is critical for retailers. Traditional anti-theft systems have played a role in protecting merchandise, but over time, their limitations have become apparent.

[0003] At present, common anti-theft devices mainly trigger alarms by detecting high and low level signals through TTL logic inside the microcontroller or detecting current signals through ADC. This one-way detection alarm logic may meet basic needs in the initial use. However, in actual application scenarios, especially when the connector between the product and the anti-theft device is frequently plugged in and out, it is easy to become loose. This looseness may cause signal instability, thereby frequently triggering the alarm mechanism and causing false alarms.

[0004] False alarms not only disrupt normal business operations, bring unnecessary trouble to store staff, reduce work efficiency, but also may give customers a bad shopping experience. In addition, because traditional anti-theft systems are less adaptable to situations such as loose connectors, the service life of anti-theft equipment will also be affected, increasing equipment maintenance and replacement costs for retailers.

[0005] In addition, the single detection mechanism of the traditional anti-theft system is gradually becoming ineffective in the face of increasingly complex theft methods. In order to deal with these problems, there is an urgent need for a more reliable, stable and adaptable anti-theft system that can effectively avoid false alarms caused by connector plugging and unplugging, while improving the accuracy and effectiveness of anti-theft.

[0006] It is in this context that we developed the asynchronous dual-factor alarm mechanism anti-theft system, which aims to address the shortcomings of existing technologies and provide stronger protection against product theft. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides an asynchronous dual-factor alarm mechanism anti-theft system to solve the above problems.

[0008] The asynchronous dual-factor alarm mechanism anti-theft system includes an alarm, a charging anti-theft cable device and a product. After the alarm comes out, the charging anti-theft cable device is connected to the product through an asynchronous dual-factor anti-theft signal. The TTL alarm logic and ADC alarm logic mechanism are set on the alarm software. The alarm will not be triggered when a unidirectional jump of the TTL electrical signal or a unidirectional jump of the ADC electrical signal is detected. The alarm is triggered when the TTL signal jump and the ADC signal jump are detected to exist simultaneously or asynchronously at the same time. The alarm will sound an alarm. The TTL trigger alarm method is a contact switch or other sensor that detects the signal transceiver switch, such as infrared, photosensitivity, etc. This device is set on the main connector connecting the product to the alarm. After detecting that the TTL electrical signal between the product and the alarm is disconnected, the on-duty alarm mechanism is started.

[0009] Preferably, the ADC trigger alarm mode connects the commodity to the alarm through the main connector, and after detecting that the ADC electrical signal between the commodity and the alarm is disconnected, the on-duty alarm mechanism is activated.

[0010] Preferably, after the main connector is completely disconnected from the commodity, or is disconnected successively, a TTL electrical signal and an ADC electrical signal are triggered, and the alarm sounds an alarm.

[0011] Preferably, after the commodity-side TTL detection mechanism anti-theft electrical signal CC1 passes through the commodity anti-theft module sensor and the commodity defense, the feedback electrical signal is given to the third pin of the alarm interface module through the cable, and the electrical signal is then connected to the first pin of the alarm module.

[0012] Preferably, the charging anti-theft electrical signal of the ADC detection mechanism at the commodity end is connected to the VCC&GND of the commodity charging end through Type-C or other connectors, and the electrical signal is sent to the 4th pin of the alarm interface module through the cable, and is detected and divided by D101, and then fed back from ADC1 to the 22nd pin of the alarm module.

[0013] Preferably, the commodity-side TTL detection mechanism anti-theft electrical signal is referred to as CC1, and the ADC detection mechanism charging anti-theft electrical signal detection is ADC1.

[0014] Preferably, after the CC1 signal at the commodity end is closed through the sensor, the signal is fed back to the alarm interface module CC1 and then connected to the alarm module CC1. The main control circuit receives the arming signal and starts the arming.

[0015] Preferably, after the ADC1 signal on the product side is connected to the product through a connector, it is connected to the VCC&GND of the charging end of the product through Type-C or other connectors. The electrical signal is sent to the 4th pin of the alarm interface module through the cable, and is detected and divided by D101. It is then fed back from ADC1 to the alarm module ADC1. The main control circuit receives the arming signal and starts the arming.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Significantly improve the accuracy of anti-theft: This asynchronous dual-factor alarm mechanism anti-theft system triggers the alarm by detecting changes in TTL signals and ADC signals at the same time, avoiding false alarms caused by loose connectors and other reasons in traditional one-way detection alarm logic. The alarm is triggered only when specific changes occur to the TTL signal and ADC signal simultaneously or asynchronously, greatly improving the accuracy of the alarm. This enables the system to more accurately identify real theft behaviors, reduce the interference of false alarms on normal operations, make anti-theft measures more reliable, and effectively protect the safety of goods.

[0018] 2. Extend the life of commodity anti-theft displays: Traditional anti-theft systems are prone to false alarms and other problems, which may lead to frequent maintenance and replacement, affecting the life of commodity anti-theft displays. This system uses an advanced asynchronous dual-factor alarm mechanism to reduce unnecessary system intervention and equipment loss caused by false alarms. Its stable and accurate alarm mechanism enables the anti-theft equipment to operate stably for a long time, reduces the failure rate of the equipment, thereby extending the service life of commodity anti-theft displays and saving merchants the cost of equipment updates and maintenance.

[0019] 3. Reduce the installation and maintenance costs of stores: In terms of installation, the structure of this system is relatively simple, the connection method is standardized, and it is easy to operate. There is no need for complex wiring and professional technicians. Ordinary employees can complete the installation after simple training, which greatly reduces the labor and time costs of installation. In terms of maintenance, due to the high stability of the system and the low failure rate, the need for frequent maintenance and replacement of equipment is reduced. At the same time, the modular design of the system makes troubleshooting and component replacement more convenient, reducing the technical difficulty and cost of maintenance.

[0020] 4. Improve store operation efficiency: False alarms in traditional anti-theft systems may cause store staff to frequently deal with false alarms, distracting their work energy and affecting normal sales and service work. The accurate and reliable alarm mechanism of this system reduces the occurrence of false alarms, allowing store staff to devote more time and energy to serving customers and promoting sales, thereby improving the overall operation efficiency of the store. Moreover, the stable operation of the system also reduces business interruptions caused by handling alarm problems, ensuring the continued operation of the store.

[0021] 5. Enhance system adaptability and compatibility: This system uses universal interfaces and standardized designs, and is compatible with various types of goods and different store environments. Whether it is a small retail store or a large shopping mall, whether it is expensive goods or ordinary goods, this anti-theft system can be effectively applied. Moreover, the system also has good scalability, and can be flexibly configured and upgraded according to the scale and needs of the store, meeting the personalized needs of different users, and providing an integrated anti-theft solution for various retail scenarios.

[0022] 6. Ensure data security and privacy: In the modern business environment, data security and privacy protection are crucial. This system encrypts the transmitted TTL electrical signals and ADC electrical signals and adopts a secure communication protocol to effectively prevent the signal from being stolen and tampered with during transmission. This not only protects the anti-theft information of the goods, but also avoids the business risks and customer privacy issues that may be caused by data leakage. At the same time, strict hardware reliability design and software fault-tolerant recovery mechanism ensure the stable operation of the system and further ensure the security and integrity of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the charging anti-theft cable device end being simultaneously connected to the commodity through an asynchronous dual-factor anti-theft signal after the alarm comes out in the present invention;

[0024] Figure 2 It is a schematic diagram of the present invention;

[0025] Figure 3 It is a guard deployment diagram in which TTL electrical signal & ADC electrical signal are simultaneously connected in the present invention;

[0026] Figure 4 It is the TTL electrical signal disconnection & ADC electrical signal connection guard deployment diagram in the present invention;

[0027] Figure 5 It is the TTL electrical signal connection & ADC electrical signal disconnection guard deployment diagram in the present invention;

[0028] Figure 6 This is the alarm diagram of the TTL electrical signal & ADC electrical signal being disconnected simultaneously or asynchronously in the present invention. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] See also Figure 1-Figure 6,With the continuous development of the commodity retail industry, the anti-theft system plays a vital role in protecting the safety of commodities. However, the traditional anti-theft alarm mechanism has gradually exposed some problems in practical applications, such as false alarms caused by loose connectors. In order to solve these problems, we proposed an innovative asynchronous dual-factor alarm mechanism anti-theft system. Through unique design and technical means, the reliability and stability of the anti-theft system are significantly improved, including alarms, charging anti-theft cable equipment and commodities. After the alarm comes out, the charging anti-theft cable equipment is connected to the commodity through asynchronous dual-factor anti-theft signals. TTL alarm logic and ADC alarm logic mechanisms are set on the alarm software. The alarm will not be triggered when the TTL electrical signal unidirectional jump or ADC electrical signal unidirectional jump is detected. The alarm is triggered when the TTL signal jump and ADC signal jump exist at the same time or asynchronously at the same time. The alarm will sound an alarm. The TTL trigger alarm method is a contact switch or other sensor that detects the signal transceiver switch, such as infrared, photosensitivity, etc. This device is set on the main connector connecting the commodity to the alarm. After the TTL electrical signal between the commodity and the alarm is detected to be disconnected, the on-duty alarm mechanism is started.

[0031] The alarm is the core component of the entire anti-theft system, responsible for monitoring and judging whether to trigger the alarm. It contains complex circuits and software logic, which can process various signals from the charging anti-theft cable device end and the commodity end. The signal processing unit is responsible for receiving and parsing TTL electrical signals and ADC electrical signals, and making judgments based on the preset alarm logic. It adopts a high-performance microprocessor with fast data processing capabilities and low power consumption. When the alarm conditions are met, the alarm sound unit can emit a loud and obvious warning sound. Usually a high-decibel speaker or buzzer is used, and the volume can be adjusted. The storage unit is used to store system configuration parameters, alarm records and other data. Non-volatile memory is used to ensure that data will not be lost in the event of a power outage.

[0032] The charging anti-theft cable device end serves to connect the alarm and the product, and is also responsible for transmitting anti-theft related electrical signals. The cable material is made of wear-resistant, stretch-resistant and conductive materials, such as copper core cables, and is wrapped with an anti-interference shielding layer to ensure the stability of signal transmission. The interface design uses a standardized interface, such as USB Type-C or other universal interfaces, to ensure compatibility with different types of products and alarms. The interface is designed with anti-loosening and anti-oxidation designs to improve the reliability of the connection.

[0033] As the object of protection of the anti-theft system, the product needs to be effectively connected and interacted with the alarm and the charging anti-theft cable device. The anti-theft module is built into the product, including the relevant sensors and circuits of the TTL detection mechanism and the ADC detection mechanism. It can monitor the connection status between the product and the alarm in real time and feed back the corresponding electrical signal to the alarm. The product identification assigns a unique identification to each product so that it can accurately identify which product triggered the alarm when the alarm is triggered.

[0034] When the product is ready for anti-theft deployment, first connect the charging anti-theft cable device end to the product. At this time, the TTL detection mechanism anti-theft electrical signal CC1 on the product side establishes a connection with the product through the product anti-theft module sensor. After the sensor detects the connection, it transmits the feedback electrical signal to the 3rd pin of the alarm interface module through the cable. After the electrical signal is processed by the interface module, it is connected to the 1st pin of the alarm module. At the same time, the ADC detection mechanism charging anti-theft electrical signal on the product side is connected to the VCC&GND of the charging end of the product through Type-C or other connectors. The electrical signal is transmitted to the 4th pin of the alarm interface module through the cable, and after the D101 detection voltage division, it is fed back from ADC1 to the 22nd pin of the alarm module. When the alarm module receives the deployment signals of the TTL detection mechanism and the ADC detection mechanism at the same time, the main control circuit confirms that the deployment is successful, and the system enters the duty state.

[0035] Once the alarm sounds, it will immediately attract the attention of people around and send an alarm signal to the relevant monitoring system or management personnel. After receiving the alarm signal, the monitoring system will automatically record the time, location and related product information of the alarm, and initiate the corresponding emergency plan, such as notifying security personnel to check and lock the relevant areas. Management personnel can view the detailed information of the alarm through the system, including the product identification, the type of alarm (whether it is triggered by TTL signal or ADC signal, or both), etc., in order to make accurate judgments and processing decisions.

[0036] The contact switch is installed on the main connector that connects the product to the alarm. When the connector is in a normal connection state, the contact switch is in a closed state and the TTL electrical signal remains stable. If the connection between the product and the alarm is forcibly disconnected, the contact switch will pop open, causing the TTL electrical signal to jump. The system monitors the state changes of the contact switch in real time. Once the jump of the TTL electrical signal is detected, the on-duty alarm mechanism is immediately activated.

[0037] In addition to contact switches, infrared, photosensitive and other sensors that detect signal transceiver switches can also be used. Taking infrared sensors as an example, infrared transmitters and receivers are installed on the main connector. When the connector is connected normally, the infrared signal can be received normally and the TTL electrical signal remains stable. If the connector is disconnected, the infrared signal is blocked, causing the TTL electrical signal to jump, thereby triggering the alarm mechanism.

[0038] When the product is connected to the alarm through the main connector, the system continuously monitors the status of the ADC electrical signal. When the connection between the product and the alarm is stable, the ADC electrical signal remains within the normal range. If the connection is broken, for example, the product is forcibly removed, resulting in charging interruption, the ADC electrical signal will exceed the normal range or disappear directly, thereby triggering the alarm mechanism.

[0039] The ADC electrical signal transmitted from the commodity end first passes through the main connector to the 4th pin of the alarm interface module. In the interface module, D101 is used to detect and divide the voltage, and the electrical signal is adjusted to a range suitable for processing by the alarm module. The divided electrical signal is fed back from ADC1 to the 22nd pin of the alarm module for judgment and processing by the alarm module.

[0040] When installing, first determine the installation location of the alarm, usually in a place that is easy to observe and operate, such as the cash register of a store or near the monitoring room. Connect one end of the charging anti-theft cable device to the corresponding interface of the alarm, and ensure that the connection is firm. Then, connect the other end of the cable to the anti-theft module interface on the product. During the connection process, pay attention to the direction and alignment of the interface to avoid damage caused by forced plugging and unplugging. For situations where multiple products need to be protected against theft, multiple products can be connected in series or in parallel to ensure that each product can establish an effective connection with the alarm.

[0041] After the installation is complete, perform initialization of the system, including setting the volume of the alarm sound, selecting the alarm method (such as sound, light, SMS notification, etc.), entering relevant information of the product (such as name, number, price, etc.), and performing separate tests on each product to simulate the connection and disconnection of the product to the alarm, and check whether the system can accurately detect signal changes and trigger corresponding alarms. At the same time, test the stability and reliability of the system under different environmental conditions (such as electromagnetic interference, temperature changes, humidity changes, etc.) to ensure that the system can work normally in various complex practical application scenarios. During the debugging process, if it is found that the system has false alarms or missed alarms, it is necessary to adjust and optimize the relevant parameters, such as adjusting the thresholds of TTL and ADC signals, optimizing the alarm logic, etc.

[0042] Regularly check whether the connection between the alarm, charging anti-theft cable device and the product is firm. If it is loose, tighten it in time. Clean the dust and debris on the alarm and interface module to avoid affecting signal transmission and normal operation of the equipment. Check the battery power (if the alarm is battery-powered), and replace low batteries in time to ensure that the system can still work normally in the event of a power outage. Perform regular self-inspections on the system to check whether various functions are normal, such as whether the alarm sound is clear and whether the signal detection is accurate.

[0043] If the system has a false alarm, first check whether the TTL and ADC signals are interfered with and eliminate external interference sources. Then check whether the sensor and interface are damaged. If damaged, they should be replaced in time. If the system has a missed alarm, check whether the signal transmission line is open or short-circuited, and repair the line fault. At the same time, check whether the alarm module is set correctly and reset the relevant parameters. For faults that cannot be determined, you can use professional testing equipment to conduct a comprehensive test of the system to find out the cause of the fault and repair it.

[0044] With the continuous development of technology and the emergence of new anti-theft needs, the system needs to be upgraded regularly. The upgrade content can include optimizing the alarm algorithm, adding new functions (such as integration with other security systems), improving the compatibility of the system, etc. The upgrade can be carried out through online upgrade, that is, downloading the new software version to the alarm through a network connection for installation. You can also use the offline upgrade method to download the upgrade file to a storage device such as a USB flash drive, and then insert it into the alarm for upgrading. Before upgrading, the new software version needs to be fully tested to ensure the safety and stability of the upgrade process. At the same time, back up the original data of the system to prevent data loss during the upgrade process.

[0045] To improve the accuracy of signal detection, more advanced sensors and detection circuits can be used to improve the detection accuracy of TTL electrical signals and ADC electrical signals, reduce misjudgments and missed judgments, optimize signal filtering and noise reduction processing, remove interference and noise in the signal, and improve signal quality and stability.

[0046] This asynchronous dual-factor alarm mechanism anti-theft system solves the problems existing in traditional anti-theft systems through innovative design and technical means, and improves the reliability and stability of the anti-theft system. In practical applications, through continuous optimization and upgrading, the system will be able to adapt to more application scenarios and needs, and provide stronger protection for commodity theft prevention. At the same time, with the development of technologies such as artificial intelligence and the Internet of Things, future anti-theft systems will be more intelligent and automated, and can achieve more accurate anti-theft detection and early warning, which will escort the development of the retail industry.

[0047] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. Asynchronous dual-factor alarm mechanism anti-theft system, characterized by: It includes an alarm, a charging anti-theft cable device and a product. After the alarm sounds, the charging anti-theft cable device is simultaneously connected to the product through an asynchronous dual-factor anti-theft signal. Set TTL alarm logic and ADC alarm logic mechanism in the alarm software. Detecting a one-way jump of the TTL electrical signal or the ADC electrical signal will not trigger the alarm. The alarm will be triggered when the TTL signal jump and the ADC signal jump are detected to exist simultaneously or asynchronously at the same time. The alarm will sound an alarm. The TTL trigger alarm method is a contact switch or other sensor that detects signal transceiver switches, such as infrared, photosensitivity, etc. This device is set on the main connector that connects the product to the alarm. After detecting that the TTL electrical signal between the product and the alarm is disconnected, the on-duty alarm mechanism is activated.

2. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 1, characterized in that: The ADC triggered alarm method connects the product to the alarm through the main connector. After detecting that the ADC electrical signal between the product and the alarm is disconnected, the on-duty alarm mechanism is activated.

3. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 2, characterized in that: After the main connector is completely disconnected from the product, or they are disconnected one after another, the TTL electrical signal and ADC electrical signal are triggered, and the alarm sounds.

4. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 3, characterized in that: After the anti-theft electrical signal CC1 of the TTL detection mechanism on the commodity side passes through the commodity anti-theft module sensor and the commodity defense, the feedback electrical signal is given to the third pin of the alarm interface module through the cable, and the electrical signal is then connected to the first pin of the alarm module.

5. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 4, characterized in that: The charging anti-theft electrical signal of the ADC detection mechanism on the product side is connected to the VCC&GND of the product charging end through Type-C or other connectors. The electrical signal is sent to the 4th pin of the alarm interface module through the cable, and is detected and divided by D101, and then fed back from ADC1 to the 22nd pin of the alarm module.

6. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 5, characterized in that: The commodity-side TTL detection mechanism anti-theft electrical signal is referred to as CC1, and the ADC detection mechanism charging anti-theft electrical signal detection is ADC1.

7. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 6, characterized in that: After the CC1 signal at the commodity end is closed through the sensor, the signal is fed back to the alarm interface module CC1 and then connected to the alarm module CC1. The main control circuit receives the arming signal and starts arming.

8. The asynchronous dual-factor alarm mechanism anti-theft system as claimed in claim 7, characterized in that: After the ADC1 signal on the product side is connected to the product through the connector, it is connected to the VCC&GND of the product charging end through Type-C or other connectors. The electrical signal is sent to the 4th pin of the alarm interface module through the cable, and is detected and divided by D101. It is then fed back from ADC1 to the alarm module ADC1. The main control circuit receives the arming signal and starts the arming.

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