Terminal product tamper alarm system and terminal product device

Abstract

The utility model discloses an anti-tamper alarm system for a terminal product and a terminal product device, the anti-tamper alarm system comprises a detection member, a distance sensor, a latch and a controller, the detection member is arranged on a support used for installing the terminal product; the distance sensor is arranged on the terminal product and is used for detecting the distance between the distance sensor and the detection piece and outputting a release signal according to the detected distance; the latch is arranged on the terminal product, the input end of the latch is connected with the output end of the distance sensor, and the latch is used for switching to a latch state according to the release signal and continuously outputting an alarm signal; the controller is arranged on the terminal product, the controller is connected with the latch, and the controller is used for triggering an anti-tamper alarm mechanism according to the alarm signal. The anti-tamper alarm system for the terminal product can latch the alarm state after the tamper alarm is triggered, so that the alarm state cannot be cleared after the terminal product is powered off / restarted, and the safety of the terminal product is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of anti-tamper alarm technology for terminal products, and in particular to an anti-tamper alarm system and device for terminal products. Background Technology

[0002] Existing retail financial terminal products are equipped with brackets, which pose a risk that criminals could remove the brackets to install devices that steal the card PINs entered by customers during transactions. Therefore, existing retail terminal products with brackets are generally equipped with removal detection trigger alarm mechanisms to detect when the terminal is removed from the bracket and trigger an alarm. However, the existing removal detection trigger alarm mechanism does not save the alarm state after the alarm is removed. The alarm state of the financial retail terminal product can be cleared by maliciously cutting off the main power or restarting, and the risk of card PIN theft still exists. Utility Model Content

[0003] The purpose of this utility model is to provide a terminal product anti-tamper alarm system and terminal product device, which can lock the alarm state after triggering the tamper alarm, so that the alarm state will not be cleared after the terminal product is powered off / restarted, effectively improving the security of the terminal product.

[0004] To achieve the above objectives, this utility model discloses a terminal product anti-tamper alarm system, which includes:

[0005] A testing component, which is mounted on a bracket for mounting a terminal product;

[0006] A distance sensor is disposed on the terminal product. The distance sensor is used to detect the distance between itself and the detection element, and outputs a release signal according to the detected distance.

[0007] A latch is installed in the terminal product. The input terminal of the latch is connected to the output terminal of the distance sensor. The latch is used to switch to a latching state according to the release signal and continuously output an alarm signal.

[0008] A controller is installed on the terminal product and connected to the latch. The controller is used to trigger an anti-tamper alarm mechanism based on the alarm signal.

[0009] Optionally, the detection element is a magnetic element, and the distance sensor is a magnetic induction sensor. When the terminal product is fixed to the bracket, the magnetic induction sensor is used to output a trigger signal based on the detected magnetic strength of the magnetic element, and the latch is used to maintain the initial state based on the trigger signal. When the terminal product is separated from the bracket, the magnetic induction sensor is used to output a release signal based on the detected magnetic strength of the magnetic element.

[0010] Optionally, the magnetic component is a disc magnet, and the magnetic induction sensor is an all-polar Hall sensor.

[0011] Optionally, the latch is provided with a reset terminal for receiving a reset signal. The latch is used to switch to the initial state according to the reset signal and stop outputting alarm signals through its output terminal.

[0012] Optionally, the terminal product is a financial transaction operator, and the controller is equipped with an encryption security module. The controller is used to control the encryption security module to prevent key loss based on the alarm signal.

[0013] Optionally, the terminal product is equipped with a main power supply and an independent power supply. The main power supply is connected to the controller and is used to supply power to the controller. The independent power supply is connected to the distance sensor, the latch, and the encryption security module respectively. The controller is used to control the alarm to issue a warning signal according to the voltage provided by the independent power supply to the encryption security module.

[0014] Optionally, the terminal product anti-tamper alarm system also includes an alarm device connected to the controller, wherein the controller is used to control the alarm device to issue a warning signal based on the alarm signal.

[0015] Optionally, the alarm is a buzzer, and the warning signal is an audio signal.

[0016] This invention incorporates a latch to store the alarm status of a terminal product. The terminal product is equipped with a distance sensor, which outputs a release signal based on the detected distance between itself and a detection element on a bracket. This release signal causes the latch to switch to a latching state, continuously outputting an alarm signal to the terminal product's controller. The controller then triggers an anti-tamper alarm mechanism based on the alarm signal, indicating that the terminal product has been forcibly removed from the bracket. This achieves the effect of latching the alarm status after the terminal product is triggered by removal, ensuring that the alarm status is not cleared after a power outage or restart, effectively improving the safety of the terminal product. Attached Figure Description

[0017] Figure 1 This is a structural block diagram of the anti-tamper alarm system for the terminal product in an embodiment of this utility model.

[0018] Figure 2 This is a circuit diagram of the anti-tamper alarm system for the terminal product of this utility model embodiment.

[0019] Figure 3 This is a schematic diagram of the magnetic induction sensor in the anti-tamper alarm system of the terminal product according to an embodiment of this utility model. Detailed Implementation

[0020] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please see Figures 1 to 3 This utility model discloses a terminal product anti-tamper alarm system, which includes:

[0022] Test component 1 is mounted on bracket 102 for mounting terminal product 101;

[0023] Distance sensor 2 is installed on terminal product 101. Distance sensor 2 is used to detect the distance between itself and detection element 1, and outputs a release signal according to the detected distance.

[0024] Latch 3 is installed in terminal product 101. The input terminal of latch 3 is connected to the output terminal of distance sensor 2. Latch 3 is used to switch to latch state according to release signal and continuously output alarm signal.

[0025] Controller 4 is located in terminal product 101. Controller 4 is connected to latch 3 and alarm 41 respectively. Controller 4 is used to trigger the anti-tamper alarm mechanism according to the alarm signal.

[0026] This invention includes a latch 3 to latch the alarm state of the terminal product 101. The terminal product 101 is equipped with a distance sensor 2. The distance sensor 2 outputs a release signal based on the distance between itself and the detection element 1 on the bracket 102, causing the latch 3 to switch to a latching state based on the release signal. The latch continuously outputs an alarm signal to the controller 4 of the terminal product 101. The controller 4 triggers an anti-tamper alarm mechanism based on the alarm signal to indicate that the terminal product 101 has been forcibly removed from the bracket 102. This achieves the effect of latching the alarm state of the terminal product 101 after triggering the removal alarm, ensuring that the alarm state of the terminal product 101 is not cleared after power failure / restart, effectively improving the security of the terminal product 101.

[0027] See Figures 1 to 3 The detection element 1 is a magnetic element, and the distance sensor 2 is a magnetic induction sensor. When the terminal product 101 is fixed to the bracket 102, the magnetic induction sensor 2 is used to output a trigger signal according to the magnetic strength of the detected magnetic element 1, and the latch 3 is used to maintain the initial state according to the trigger signal. When the terminal product 101 is separated from the bracket 102, the magnetic induction sensor 2 is used to output a release signal according to the magnetic strength of the detected magnetic element 1.

[0028] Furthermore, the magnetic component 1 is a disc-shaped magnet, and the magnetic induction sensor 2 is an all-polar Hall sensor.

[0029] Specifically, in this embodiment, a circular disc-shaped magnet is provided on the bracket 102 of the retail terminal product 101. The magnet is sensed by the magnetic sensing function of the Hall effect sensor element that is perpendicular to the magnetic field on the top of the packaged device, so as to realize the anti-tamper alarm detection of whether the retail terminal product 101 has been removed from the bracket 102.

[0030] Specifically, in this embodiment, the omnipolar Hall sensor can be turned on in a strong magnetic field of any polarity and adopts a push-pull output mechanism: only one upper / lower switch is turned on at a time, resulting in low conduction loss and leakage current, high efficiency, and a low magnetic trigger threshold, so that it can be triggered even when it is far away from the device.

[0031] See Figures 1 to 3 The latch 3 is provided with a reset terminal for receiving a reset signal. The latch 3 is used to switch to the initial state according to the reset signal and stop outputting alarm signals through its output terminal.

[0032] Specifically, in this embodiment, latch 3 is a D trigger, magnetic induction sensor 2 is provided with OUTPUT pin as its output terminal, latch 3 is provided with CP pin as its input terminal, Q pin as its output terminal and MR pin as its reset terminal. CP pin is connected to OUTPUT pin, Q pin is connected to Alarm GPIO pin of controller 4, and MR pin is connected to a reset switch SW-RST, but not limited to these.

[0033] Specifically, in this embodiment, such as Figure 3 As shown, when the terminal product 101 is on the bracket 102, the Hall sensor magnetically senses the magnet on the bracket 102. When the magnetic induction intensity of the Hall sensor is higher than the trigger threshold Bop, the Hall sensor is triggered, the switch of the connected circuit is closed, and the OUTPUT pin of the Hall sensor outputs a low-level signal, which will not trigger the anti-tamper alarm mechanism inside the controller 4.

[0034] When the terminal product 101 is removed from the bracket 102, the magnetic induction intensity of the Hall sensor will be lower than the release threshold Brp, the Hall sensor will release, the switch of the connected circuit will be turned on, and the level signal output by the OUTPUT pin of the Hall sensor will jump from low level to high level to trigger the D flip-flop, so that its Q pin outputs a high level signal and latches the release state of the Hall sensor. After the controller 4 detects the level change, it will identify that the terminal product 101 has been removed and trigger the anti-tamper alarm mechanism inside the controller 4.

[0035] See Figures 1 to 3 Terminal product 101 is a financial transaction operator. Controller 4 is equipped with an encryption security module. Controller 4 is used to control the encryption security module to prevent key loss based on alarm signals.

[0036] Specifically, in this embodiment, the controller 4 is an MCU chip with an internal anti-tamper alarm mechanism. When triggered, the MCU chip's key will be lost, thereby locking all financial transaction functions of the financial transaction operator and rendering it unusable.

[0037] See Figures 1 to 3 The terminal product 101 is equipped with a main power supply and an independent power supply. The main power supply is connected to the controller 4 and is used to supply power to the controller 4. The independent power supply is connected to the distance sensor 2, the latch 3 and the encryption security module respectively. The controller 4 is used to control the alarm 41 to send a warning signal according to the voltage provided by the independent power supply to the encryption security module.

[0038] Specifically, in this embodiment, the independent power supply is a button battery with low leakage current, which provides operating current for the Hall effect sensor, latch 3 (latch mechanism), and the encryption security module of the MCU. At the same time, the alarm 41 is also electrically connected to the independent power supply and the main power supply, so that after the main power supply of the terminal product 101 is maliciously cut off or restarted, the latch 3 can still remain in the latched state to trigger the anti-tamper alarm mechanism of the controller 4 and keep the alarm 41 in the alarm state. If the independent power supply (button battery) is maliciously removed, the controller 4 can also trigger the anti-tamper alarm mechanism of the controller 4 by detecting whether the power supply voltage of the security encryption module is in a low voltage state, and control the alarm 41 to issue a warning signal, but it is not limited to this.

[0039] See Figures 1 to 3 The terminal product anti-tamper alarm system also includes an alarm 41, which is connected to a controller 4. The controller 4 is used to control the alarm 41 to issue a warning signal according to the alarm signal.

[0040] Furthermore, the alarm 41 is a buzzer, and the warning signal is an audio signal.

[0041] Specifically, in this embodiment, after the anti-tamper alarm mechanism of the controller 4 is triggered, the controller 4 will activate the buzzer circuit to emit a piercing warning sound to prompt the user that the terminal product 101 has been removed from the bracket 102.

[0042] Please see Figures 1 to 3 A terminal product device comprising:

[0043] The bracket is equipped with the detection component 1 in the aforementioned terminal product anti-tamper alarm system;

[0044] The terminal product is equipped with a distance sensor 2, a latch 3, and a controller 4, as described in the aforementioned terminal product anti-tamper alarm system.

[0045] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A tamper-proof alarm system for a terminal product, characterized in that, include: A testing component, which is mounted on a bracket for mounting a terminal product; A distance sensor is disposed on the terminal product. The distance sensor is used to detect the distance between itself and the detection element, and outputs a release signal according to the detected distance. A latch is installed in the terminal product. The input terminal of the latch is connected to the output terminal of the distance sensor. The latch is used to switch to a latching state according to the release signal and continuously output an alarm signal. A controller is installed on the terminal product and connected to the latch. The controller is used to trigger an anti-tamper alarm mechanism based on the alarm signal.

2. The terminal product anti-tamper alarm system according to claim 1, characterized in that, The detection component is a magnetic component, and the distance sensor is a magnetic induction sensor. When the terminal product is fixed to the bracket, the magnetic induction sensor is used to output a trigger signal based on the detected magnetic strength of the magnetic component, and the latch is used to maintain the initial state based on the trigger signal. When the terminal product is separated from the bracket, the magnetic induction sensor is used to output a release signal based on the detected magnetic strength of the magnetic component.

3. The terminal product anti-tamper alarm system according to claim 2, characterized in that, The magnetic component is a disc-shaped magnet, and the magnetic induction sensor is an all-polar Hall sensor.

4. The terminal product anti-tamper alarm system according to claim 1, characterized in that, The latch is provided with a reset terminal for receiving a reset signal. The latch is used to switch to the initial state according to the reset signal and stop outputting alarm signals through its output terminal.

5. The terminal product anti-tamper alarm system according to claim 1, characterized in that, The terminal product is a financial transaction operator, and the controller is equipped with an encryption security module. The controller is used to control the encryption security module to prevent key loss based on the alarm signal.

6. The terminal product anti-tamper alarm system according to claim 5, characterized in that, The terminal product is equipped with a main power supply and an independent power supply. The main power supply is connected to the controller and is used to supply power to the controller. The independent power supply is connected to the distance sensor, the latch, and the encryption security module respectively. The controller is used to trigger an anti-tamper alarm mechanism based on the voltage provided by the independent power supply to the encryption security module.

7. The terminal product anti-tamper alarm system according to claim 1, characterized in that, It also includes an alarm, which is connected to the controller, and the controller is used to control the alarm to issue a warning signal according to the alarm signal.

8. The terminal product anti-tamper alarm system according to claim 7, characterized in that, The alarm is a buzzer, and the warning signal is an audio signal.

9. A terminal product device, characterized in that, include: The bracket is provided with a detection element in the terminal product tamper alarm system as described in any one of claims 1 to 8; The terminal product is equipped with a distance sensor, latch, and controller as described in any one of claims 1 to 8 of the terminal product tamper alarm system.

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