Anti-theft alarm system

Abstract

The utility model discloses an anti-theft alarm system which comprises a control module and one or more monitoring terminals, and each monitoring terminal comprises a password module, an anti-theft monitoring module, a sensing module and an alarm module which are connected with the control module. The password module comprises a power supply interface used for being connected with power supply voltage, the password module is used for generating a first control signal based on an input password and generating a disconnection signal used for representing whether disconnection exists between the power supply interface and the power supply voltage, the anti-theft monitoring module is used for generating a monitoring signal, and the sensing module is used for generating a sensing signal; the control module generates a second control signal based on the first control signal, the circuit break signal, the sensing signal and the monitoring signal, and the alarm module gives an alarm based on the second control signal. According to the anti-theft alarm system, the environment in the cabin is monitored in real time through the sensing module, and an alarm can be given in time when abnormity occurs in the cabin.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the monitoring technical field, and specifically relates to a theftproof alarm system. BACKGROUND

[0002] The ship or the warship usually has a plurality of cabins, and the cabins are also divided into ordinary cabins and important cabins, such as cabins with guns and ammunition, confidential files, important cabins. When each cabin is in danger of theft, the sound and light alarm can be sent through the alarm system to warn the crew. The existing alarm system can only alarm the theft danger, cannot monitor and warn the environment, and cannot timely respond when the cabin temperature abnormally rises, and cannot timely and effectively notify the supervisor when the fire and other dangerous situations occur.

[0003] In addition, the existing alarm system adopts an independent alarm mode, that is, when a cabin has a dangerous situation, the sound and light alarm is only performed in the cabin, and the supervisor needs to determine where the danger occurs according to the alarm sound, so that the supervisor cannot real-time grasp the safety situation of the cabin, and the supervisor has difficulty in understanding the ship management information.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model, and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a theftproof alarm system, which can simultaneously perform theftproof monitoring and alarm and environmental monitoring and alarm.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:

[0007] A theftproof alarm system comprises a control module and one or more monitoring terminals, the monitoring terminal comprises a password module, a theftproof monitoring module, a sensing module and an alarm module connected with the control module; the password module comprises a power supply interface for connecting a power supply voltage, the password module is used for generating a first control signal based on an input password and generating a disconnection signal for indicating whether the power supply interface is disconnected from the power supply voltage, the theftproof monitoring module is used for generating a monitoring signal, the sensing module is used for generating a sensing signal, the control module generates a second control signal based on the first control signal, the disconnection signal, the sensing signal and the monitoring signal, and the alarm module alarms based on the second control signal.

[0008] In one or more embodiments of the utility model, the theftproof monitoring module comprises a theftproof detector and / or a door switch sensor.

[0009] In one or more embodiments of the present invention, the sensing module includes a temperature and humidity sensor.

[0010] In one or more embodiments of the present invention, the monitoring terminal further includes a display module, and the display module is connected to the control module.

[0011] In one or more embodiments of the present invention, the control module includes a power supply unit and a control unit, the power supply unit is connected to the control unit to generate an operating voltage, and the control unit is connected to the password module, the anti-theft monitoring module, and the sensor module to generate a second control signal based on the first control signal, the circuit breaker signal, the sensor signal, and the monitoring signal.

[0012] In one or more embodiments of the present invention, the control unit includes an ADC subunit and a control subunit, the ADC subunit is connected to the sensing module to receive the sensing signal and convert the sensing signal into a digital sensing signal, the control subunit is connected to the ADC subunit to receive the digital sensing signal, and the control subunit is connected to the password module and the anti-theft monitoring module to generate a second control signal based on the first control signal, the circuit breaker signal, the digital sensing signal and the monitoring signal.

[0013] In one or more embodiments of the present invention, the power supply unit includes a first circuit breaker and a switching power supply, the switching power supply is connected to the power supply voltage through the first circuit breaker, and the switching power supply is used to generate an operating voltage.

[0014] In one or more embodiments of the present invention, the power supply unit further includes a battery and a second circuit breaker, and the switching power supply is connected to the battery via the second circuit breaker.

[0015] In one or more embodiments of the present invention, the password module includes a resistor, a first relay, a password unit and a signal unit, the first relay includes a first coil and a first switch, the first end of the resistor and the first end of the first switch are connected to the power interface, the second end of the resistor is connected to the second end of the first switch to generate a node voltage, the password unit is connected to the power voltage and the first end of the first coil to control the on and off between the first end of the first coil and the power interface based on the input password, the second end of the first coil is connected to the ground voltage, and the signal unit is connected to the second end of the resistor and the second end of the first switch to generate a first control signal and a circuit breaker signal based on the node voltage.

[0016] In one or more embodiments of the present invention, the password unit includes a password control subunit and a second switch, the first end of the second switch is connected to the first end of the first switch, the second end of the second switch is connected to the second end of the first switch and the first end of the first coil, and the password control subunit is used to control the on and off of the second switch based on the input password.

[0017] Compared to existing technologies, the anti-theft alarm system of this utility model uses a sensor module to monitor the cabin environment in real time, providing timely alarms when an abnormality occurs within the cabin. Furthermore, an alarm can be triggered if the cryptographic module trips due to an abnormality. By controlling multiple monitoring terminals through a single control module, in the event of a dangerous situation, not only can the corresponding cabins be controlled to emit audible and visual alarms, but the specific location and status of the dangerous situation can also be displayed on the display unit and monitor, allowing supervisors to promptly monitor the safety status of all cabins. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a system structure diagram of an anti-theft alarm system in one embodiment of the present utility model.

[0020] Figure 2 This is a system structure diagram of a password module in one embodiment of the present invention.

[0021] Figure 3 1 and 2 are front and rear views of a display module in one embodiment of the present invention.

[0022] Figure 4 2 is a system structure diagram of a control module in one embodiment of the present invention.

[0023] Figure 5 This is a circuit diagram of a power supply unit in one embodiment of the present invention.

[0024] Figure 6 This is a circuit diagram of an analog input module in one embodiment of the present invention.

[0025] Figure 7 This is a circuit schematic diagram of a CPU module in one embodiment of the present invention.

[0026] Figure 8 This is a circuit diagram of a digital input and output module in one embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] The terms "coupled," "connected," or "connected" in this specification encompass both direct and indirect connections. An indirect connection is a connection made through an intermediate medium, such as an electrically conductive medium, which may have parasitic inductance or capacitance. An indirect connection may also include a connection through other active or passive devices, such as switches, follower circuits, or other circuits or components, to achieve the same or similar functional objectives. Furthermore, in this specification, terms such as "first" and "second" are primarily used to distinguish one technical feature from another and do not necessarily require or imply a specific relationship, quantity, or order between these technical features.

[0029] In the detailed description of the specification, reference is made to the accompanying drawings forming a part thereof, wherein like reference numerals designate like parts throughout, and wherein exemplary embodiments that may be implemented are shown by way of example. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description should not be construed in a limiting sense.

[0030] The various operations in the specification may be described as multiple discrete actions or operations in a manner that is most helpful in understanding the claimed subject matter. However, the order of description should not be interpreted as implying that these operations must be sequentially related. Specifically, these operations may not be performed in the order presented. The described operations may be performed in an order different from the described embodiments. Various additional operations may be performed and / or the described operations may be omitted in additional embodiments.

[0031] For the purposes of this disclosure, the phrase "A and / or B" means (A), (B), or (A and B). For the purposes of this disclosure, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0032] Various components and devices may be referred to or shown herein in the singular, but this is merely for ease of discussion, and any element referred to in the singular may include a plurality of such elements in accordance with the teachings herein.

[0033] The specification uses the phrases "in one embodiment," "in other embodiments," or "in some embodiments," which can each refer to one or more of the same or different embodiments. In addition, the terms "including," "comprising," "having," etc. used with respect to the embodiments of the present disclosure are synonymous.

[0034] like Figure 1 As shown, the anti-theft alarm system in one embodiment of the present invention includes a control module 10 and a monitoring terminal 20 . The monitoring terminal 20 includes a password module 30 connected to the control module 10 , an anti-theft monitoring module 40 , a sensor module 50 , an alarm module 60 and a display module 70 .

[0035] In one embodiment, three monitoring terminals 20 are provided and are installed in different cabins. In other embodiments, other numbers of monitoring terminals 20 may be provided. The structure and function of each monitoring terminal 20 are the same, and the following description will take one of the monitoring terminals 20 as an example.

[0036] The password module 30 includes a power supply interface for connecting to a power supply voltage. Based on the input password, the password module 30 generates a first control signal and a circuit breaker signal indicating whether the circuit between the power supply interface and the power supply voltage is disconnected. The anti-theft monitoring module 40 generates a monitoring signal, and the sensor module 50 generates a sensor signal. The control module 10 generates a second control signal based on the first control signal, the circuit breaker signal, the sensor signal, and the monitoring signal. The alarm module 60 generates an alarm based on the second control signal. The display module 70 is connected to the control module 10 and displays information based on the control of the control module 10.

[0037] Specifically, the anti-theft monitoring module 40 includes an anti-theft detector and a door switch sensor. The anti-theft detector triggers an alarm upon detecting intrusion and generates a first monitoring signal. The anti-theft detector is preferably model ZM-FB / 01. The door switch sensor triggers an alarm upon detecting door opening and generates a second monitoring signal. The door switch sensor is preferably model 8077-11, an explosion-proof travel switch.

[0038] The sensor module 50 includes a temperature and humidity sensor, which generates a sensor signal containing humidity and temperature information by sensing humidity and temperature. The model of the temperature and humidity sensor is preferably JWSK-G, which has explosion-proof function, and the sensor signal is an analog signal.

[0039] The alarm module 60 includes an audible and visual alarm, and the model of the audible and visual alarm is preferably S80AR-BZ-24-R.

[0040] like Figure 2As shown, the password module 30 includes a resistor R1, a switch K3, a first relay, a password unit 31 and a signal unit 32. The first relay includes a first coil Ka1 and a first switch K1. The power interface is connected to a 24V power supply voltage.

[0041] The first end of the resistor R1 and the first end of the conversion switch K3 are connected to the power interface, the second end of the conversion switch K3 is connected to the first end of the first switch K1, the second end of the resistor R1 is connected to the second end of the first switch K1 to generate a node voltage, the password unit 31 is connected to the power interface and the first end of the first coil Ka1 to control the on and off between the first end of the first coil Ka1 and the power interface based on the input password, the second end of the first coil Ka1 is connected to the ground voltage, and the signal unit 32 is connected to the second end of the resistor R1 and the second end of the first switch K1 to generate a first control signal and a circuit breaker signal based on the node voltage.

[0042] Among them, the password unit 31 includes a password control subunit 311 and a second switch K2, the first end of the second switch K2 is connected to the first end of the first switch K1, the second end of the second switch K2 is connected to the second end of the first switch K1 and the first end of the first coil Ka1, and the password control subunit 311 is used to control the on and off of the second switch K2 based on the input password.

[0043] In one embodiment, the password control subunit 311 includes a password dial and a relay coil inductively connected to the second switch K2. The relay coil is connected to a power supply voltage via the password dial. Entering a correct password energizes the relay coil, thereby closing the second switch K2. In other embodiments, the second switch K2 can also be another device, such as a switching transistor. The password control subunit 311 can provide a gate voltage to the switching transistor based on the entered password to control the switching transistor's on and off.

[0044] The password module 30 is used to allow the outside world to set the arming and disarming state of the anti-theft alarm system by entering a password. If the password is correct, the system will be disarmed and no alarm will be issued for intrusion, door opening, etc. If the password is incorrect, the system will be armed and the alarm will be issued normally.

[0045] When the power interface is normally connected to the power supply voltage, the conversion switch K3 is not closed or the correct password is not entered to disconnect the second switch K2, it is considered to be in the armed state. The node voltage is the voltage value after the power supply voltage passes through the resistor R1 to generate a voltage drop, and changing the resistance value of the resistor R1 can also adjust the node voltage value accordingly. In this case, the node voltage in this embodiment is 5V.

[0046] When the power interface is properly connected to the power supply voltage, the transfer switch K3 is closed, and the correct password is entered, which also closes the second switch K2, the device is considered to be in the disarmed state. After the first coil Ka1 is energized, it controls the first switch K1 to close as well, and the node voltage is 24V. The first switch K1 and the first coil Ka1 can also be self-locking. After the second switch K2 is opened, the node voltage remains at 24V until the transfer switch K3 is disconnected or the power interface is disconnected.

[0047] When the power interface is disconnected, the node voltage is 0V regardless of the switch status.

[0048] The signal unit 32 may generate a first control signal and a disconnection signal according to different node voltage values.

[0049] In one embodiment, the signal unit 32 includes a second relay and a third relay, wherein the coil connection terminal of the second relay and the coil connection terminal of the third relay are both connected to the second end of the resistor R1 and the second end of the first switch K1 to receive the node voltage, the normally open contact of the second relay is used to output the first control signal, and the normally open contact of the third relay is used to output the circuit breaker signal.

[0050] The theoretical threshold voltage of the second relay is 5V to 24V, which can identify whether the password is entered correctly and give the first control signal. The theoretical threshold voltage of the third relay is 0V to 24V, which can identify whether the power interface is powered off and give a circuit breaker signal.

[0051] In one embodiment, when the node voltage is 0V, the second relay outputs a low-level first control signal, and the third relay outputs a high-level circuit-breaking signal. When the node voltage is 5V, the second relay outputs a low-level first control signal, and the third relay outputs a low-level circuit-breaking signal. When the node voltage is 24V, the second relay outputs a high-level first control signal, and the third relay outputs a low-level circuit-breaking signal.

[0052] In other embodiments, other devices such as voltage comparison circuits, single-chip microcomputers or other methods may be used to process the node voltage and generate the first control signal and the trip signal. The forms of the first control signal and the trip signal may also be adjusted as needed.

[0053] like Figure 3As shown, the display module 70 includes a terminal display screen, a terminal buzzer, and a terminal mute switch. The control module 10 is further configured to generate a terminal buzzer control signal and a terminal mute signal. The terminal display screen is connected to the control module 10 and displays hazard information based on the control of the control module 10. The terminal buzzer is connected to the control module 10 to emit a warning sound based on the terminal buzzer control signal. The terminal mute switch is connected to the terminal buzzer and the control module 10. The terminal mute switch can turn off the terminal buzzer based on the terminal mute signal or based on its own on / off switching.

[0054] like Figure 4 As shown, the control module 10 includes a power supply unit 11, a control unit 12, and a display unit 13. The power supply unit 11 is connected to the control unit 12 to generate an operating voltage. The control unit 12 is connected to the password module 30, the anti-theft monitoring module 40, and the sensor module 50 to generate a second control signal based on the first control signal, the circuit breaker signal, the sensor signal, and the monitoring signal. The display unit 13 is connected to the control unit 12 to display information based on the control of the control unit 12.

[0055] like Figure 5 As shown, the power supply unit 11 includes a switching power supply PW01 , a first circuit breaker QF1 , a second circuit breaker QF2 , and a battery GB.

[0056] The switching power supply PW01 is preferably DRC-100B, which has AC and DC power input pins and can convert AC or DC power to the required operating voltage. The switching power supply PW01 can also generate a voltage source signal that indicates whether the switching power supply PW01 is currently receiving AC or DC power.

[0057] The AC power input pin of the switching power supply PW01 is connected to the power supply voltage (AC220V) through the first circuit breaker QF1, and the DC power input pin of the switching power supply PW01 is connected to the battery GB through the second circuit breaker QF2. The voltage output pin of the switching power supply PW01 is used to generate an operating voltage (24V). The first circuit breaker QF1 is used to control the connection and disconnection between the AC power input pin of the switching power supply PW01 and the power supply voltage, and the second circuit breaker QF2 is used to control the connection and disconnection between the DC power input pin of the switching power supply PW01 and the battery GB.

[0058] like Figures 6 to 8 As shown, the control unit 12 includes an ADC subunit and a control subunit.

[0059] Among them, the ADC subunit is connected to the sensor module 50 to receive the sensor signal and convert the sensor signal into a digital sensor signal, the control subunit is connected to the ADC subunit to receive the digital sensor signal, the control subunit is connected to the password module 30 and the anti-theft monitoring module 40 to generate a second control signal based on the first control signal, the circuit breaker signal, the digital sensor signal and the monitoring signal, and the control subunit is connected to the display unit 13.

[0060] In one embodiment, the ADC subunit includes an analog input module SM231. The control subunit includes a CPU module CPUH224 and a digital input and output module SM223.

[0061] In one embodiment, the display unit 13 includes a main display screen, a main buzzer, and a main indicator light.

[0062] In one embodiment, the control unit 12 further includes a self-test switch, a main mute switch, a main power indicator light, a backup power indicator light, and a fourth relay.

[0063] The analog input module SM231 and the digital input and output module SM223 are connected to the CPU module CPUH224 for information exchange.

[0064] The CPU module CPUH224 is connected to the main display screen and the terminal display screen, communicating via the RS485 protocol. It is also connected to the anti-theft detector to receive a first monitoring signal and to the door switch sensor to receive a second monitoring signal. The first end of the self-test switch is connected to a 24V operating voltage, and the second end is connected to the CPU module CPUH224. The first end of the main mute switch is connected to a 24V operating voltage, and the second end is connected to the CPU module CPUH224.

[0065] The CPU module CPUH224 is connected to the first end of the main buzzer, the first end of the main indicator light, the first end of the main power indicator light and the first end of the backup power indicator light, and the second end of the main buzzer, the second end of the main indicator light, the second end of the main power indicator light and the second end of the backup power indicator light are connected to the 0V voltage.

[0066] The CPU module CPUH224 is also used to generate a terminal buzzer control signal and a terminal mute signal.

[0067] The CPU module CPUH224 is also connected to the switching power supply PW01 to receive a voltage source signal.

[0068] The CPU module CPUH224 is connected to the coil terminal of the fourth relay to generate a second control signal. The normally open end of the fourth relay is connected to the sound and light alarm. The fourth relay controls the on and off between the sound and light alarm and the power supply voltage based on the second control signal, thereby controlling the sound and light alarm to alarm.

[0069] It is understandable that the fourth relay may not be provided, and the CPU module CPUH224 may be connected to the sound and light alarm, and the CPU module CPUH224 may generate a second control signal to directly control the sound and light alarm to sound an alarm.

[0070] Digital input / output module SM223 is connected to signal unit 32 to receive the first control signal and the circuit breaker signal. It is also used to generate a comprehensive alarm signal and an air conditioning control signal. The air conditioning control signal is used to control the air conditioning in the cabin, and the comprehensive alarm signal is output to external devices.

[0071] During actual operation, power is first supplied by the power module. When the power supply voltage (AC220V) is used, the CPU module CPUH224 detects that AC power is currently being supplied through the voltage source signal, and then controls the main power indicator to light up and the backup power indicator to turn off. When the battery GB is used for power supply, the CPU module CPUH224 detects that DC power is currently being supplied through the voltage source signal, and then controls the main power indicator to turn off and the backup power indicator to light up. At the same time, the CPU module CPUH224 controls the main buzzer and main indicator to sound an alarm until the power supply voltage is restored.

[0072] When the self-test switch is pressed, the CPU module CPUH224 controls the main buzzer, main indicator light, main power supply and backup power supply indicator lights to all be energized and alarm, so as to check whether the alarm function is in good condition.

[0073] The temperature and humidity sensors continuously monitor the cabin's temperature and humidity, transmitting the signals to the analog input module SM231. This module converts the signals into digital signals and transmits them to the CPU module CPUH224. If the CPU module CPUH224 detects a high cabin temperature, such as exceeding 30°C, the digital input / output module SM223 generates an air conditioning control signal, turning on the cabin's air conditioning and automatically cooling the cabin.

[0074] If the temperature is too high, such as exceeding 70°C, the CPU module CPUH224 generates a second control signal, which triggers the fourth relay and, in turn, the audible and visual alarm. The CPU module CPUH224 also generates a terminal buzzer control signal, triggering the corresponding terminal buzzer to sound an alarm. The CPU module CPUH224 also activates the main buzzer and main indicator light to sound an alarm, and controls the main and terminal display screens to display information, allowing both the control module 10 and the monitoring terminal 20 compartments to be notified of any abnormal conditions.

[0075] When the power interface of the password module 30 is disconnected, the signal unit 32 generates a high-level disconnect signal. The digital input and output module SM223 receives the disconnect signal and transmits it to the CPU module CPUH224. The CPU module CPUH224 then generates a second control signal, which triggers the fourth relay and controls the sound and light alarm to sound an alarm. The CPU module CPUH224 will also generate a terminal buzzer control signal, triggering the corresponding terminal buzzer to sound an alarm. The CPU module CPUH224 also controls the main buzzer and main indicator light to sound an alarm, and controls the main display screen and the terminal display screen to display, so that the cabin where the control module 10 is located and the cabin where the monitoring terminal 20 is located can both be notified of abnormal conditions at the same time.

[0076] When the transfer switch K3 is not closed or the correct password is not entered, the digital input / output module SM223 receives the low-level first control signal and transmits it to the CPU module CPUH224, causing the CPU module CPUH224 to enter the armed mode. In the armed mode, if the anti-theft detector or door switch sensor detects an abnormal intrusion and generates the corresponding first monitoring signal and second monitoring signal, the CPU module CPUH224 will generate the second control signal and trigger the corresponding alarm.

[0077] When the switch K3 is closed and the correct password is entered, the digital input / output module SM223 receives the high-level first control signal and transmits it to the CPU module CPUH224, which then enters the disarm mode. In the disarm mode, the CPU module CPUH224 no longer responds to the first and second monitoring signals to generate the second control signal.

[0078] During the above process, regardless of the stage, the terminal buzzer can be silenced by pressing the terminal mute switch or generating a terminal mute signal through the CPU module CPUH224. The CPU module CPUH224 also silences the main buzzer by pressing the master mute switch. The digital input / output module SM223 can also output a comprehensive alarm signal to allow external devices to obtain alarm information.

[0079] It is understandable that the control logic of the control module 10 generating the second control signal based on the first control signal, the disconnection signal, the sensing signal and the monitoring signal can also be adjusted according to actual needs and is not limited to the above process.

[0080] As can be seen, the anti-theft alarm system in this solution has multiple alarm functions, integrating the anti-theft alarm with the environmental monitoring alarm to ensure the security of multiple monitoring locations. The monitoring results can also be displayed in different compartments, achieving the purpose of efficient supervision.

[0081] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0082] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A burglar alarm system, characterized in that: It includes a control module and one or more monitoring terminals, wherein the monitoring terminal includes a password module, an anti-theft monitoring module, a sensor module and an alarm module connected to the control module; The password module includes a power interface for connecting to the power supply voltage. The password module is used to generate a first control signal based on the input password and a circuit breaker signal for indicating whether there is a circuit breaker between the power interface and the power supply voltage. The anti-theft monitoring module is used to generate a monitoring signal. The sensor module is used to generate a sensor signal. The control module generates a second control signal based on the first control signal, the circuit breaker signal, the sensor signal and the monitoring signal. The alarm module issues an alarm based on the second control signal.

2. The anti-theft alarm system according to claim 1, characterized in that: The anti-theft monitoring module includes an anti-theft detector and / or a door switch sensor.

3. The anti-theft alarm system according to claim 1, characterized in that: The sensing module includes a temperature and humidity sensor.

4. The anti-theft alarm system according to claim 1, characterized in that: The monitoring terminal further includes a display module, and the display module is connected to the control module.

5. The anti-theft alarm system according to claim 1, characterized in that: The control module includes a power supply unit and a control unit, the power supply unit is connected to the control unit to generate an operating voltage, and the control unit is connected to the password module, the anti-theft monitoring module, and the sensor module to generate a second control signal based on the first control signal, the circuit breaker signal, the sensor signal, and the monitoring signal.

6. The anti-theft alarm system according to claim 5, characterized in that: The control unit includes an ADC subunit and a control subunit. The ADC subunit is connected to the sensing module to receive the sensing signal and convert the sensing signal into a digital sensing signal. The control subunit is connected to the ADC subunit to receive the digital sensing signal. The control subunit is connected to the password module and the anti-theft monitoring module to generate a second control signal based on the first control signal, the circuit breaker signal, the digital sensing signal and the monitoring signal.

7. The anti-theft alarm system according to claim 5, characterized in that: The power supply unit includes a first circuit breaker and a switching power supply. The switching power supply is connected to the power supply voltage through the first circuit breaker, and the switching power supply is used to generate an operating voltage.

8. The anti-theft alarm system according to claim 7, characterized in that: The power supply unit further includes a battery and a second circuit breaker, and the switching power supply is connected to the battery via the second circuit breaker.

9. The anti-theft alarm system according to claim 1, characterized in that: The password module includes a resistor, a first relay, a password unit and a signal unit. The first relay includes a first coil and a first switch. The first end of the resistor and the first end of the first switch are connected to the power interface, and the second end of the resistor is connected to the second end of the first switch to generate a node voltage. The password unit is connected to the power voltage and the first end of the first coil to control the connection and disconnection between the first end of the first coil and the power interface based on the input password. The second end of the first coil is connected to the ground voltage. The signal unit is connected to the second end of the resistor and the second end of the first switch to generate a first control signal and a circuit breaker signal based on the node voltage.

10. The anti-theft alarm system according to claim 9, characterized in that: The password unit includes a password control subunit and a second switch, the first end of the second switch is connected to the first end of the first switch, the second end of the second switch is connected to the second end of the first switch and the first end of the first coil, and the password control subunit is used to control the on and off of the second switch based on the input password.

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