Alarm device and alarm system

Abstract

The utility model provides an alarm device and an alarm system with an internal power supply module, the alarm device comprises a base, a function part and the internal power supply module, the function part is arranged on the base, the function part comprises a wireless communication module, a control module and an alarm module, the wireless communication module is configured to be capable of receiving external start-stop signals, and the control module is configured to be capable of controlling the alarm module. The control module communicates with the wireless communication module, the alarm module communicates with the control module, and the control module is configured to control the alarm module to send out an alarm signal according to the start-stop signal. The internal power supply module comprises a primary battery, and the primary battery is electrically connected with the control module, the wireless communication module and the alarm module. According to the embodiment of the utility model, the operation of the alarm device can be maintained for a long time under the condition that the external power supply is powered off, the applicability and the stability of the alarm device in an emergency are improved, the requirement of the alarm device on an external power supply is reduced, and the alarm device can normally operate for a long time even if the alarm device is not connected to the external power supply.

Description

Technical Field

[0001] The utility model generally relates to the technical field of fire protection and security, in particular to an alarm device and an alarm system with an internal power supply module. Background Art

[0002] With the development of technology, in an alarm system composed of multiple alarm devices, controlling multiple alarm devices through wireless communication is an important development direction. Wireless communication alarm devices can make the setting location of the alarm device more free and have a larger coverage range, and can also save production costs and maintenance costs.

[0003] However, the wireless communication technology solution of the alarm device still has the defect of poor power supply stability and is limited by the power line. The wireless communication alarm device must be connected to an external power supply and cannot be disconnected from the power line, resulting in the setting location of the alarm device being limited by the location of the external power supply.

[0004] Moreover, in the event of an emergency, the stability of the external power supply cannot be guaranteed. When the external power supply is disconnected, the alarm device may not be able to start. Even if a secondary battery or capacitor is set in the alarm device to provide temporary power for the alarm device, the stability cannot be guaranteed. In the normal standby state, the operation time of the alarm device generally does not exceed 12 hours, and the duration in the triggered state is even shorter. For example, the power of the capacitor is usually only enough to ensure the issuance of an alarm signal once, which is difficult to support the long-term operation of the alarm device.

[0005] The content of the background technology section is merely the technology known to the utility model inventor and does not necessarily represent the prior art in the field. Utility Model Content

[0006] In view of one or more defects in the prior art, the utility model provides an alarm device, comprising:

[0007] Pedestal;

[0008] A functional part, the functional part is arranged on the base, and the functional part includes:

[0009] A wireless communication module, wherein the wireless communication module is configured to receive an external start / stop signal;

[0010] a control module, the control module communicating with the wireless communication module; and

[0011] an alarm module, the alarm module communicates with the control module, and the control module is configured to control the alarm module to send an alarm signal according to the start-stop signal;

[0012] An internal power supply module, wherein the internal power supply module comprises a primary battery, and the primary battery is electrically connected to the wireless communication module, the control module and the alarm module.

[0013] According to one aspect of the utility model, the power of the primary battery is configured to be able to drive the control module, the wireless communication module and the alarm module to operate for no less than 1 year.

[0014] According to one aspect of the utility model, the alarm device also includes an external power supply module, which is electrically connected to an external power supply, and is electrically connected to the control module, the wireless communication module and the alarm module, and the external power supply module supplies power to the control module, the wireless communication module and the alarm module in priority to the internal power supply module.

[0015] According to one aspect of the utility model, the alarm device also includes a comparator, which is electrically connected to the external power supply module and the internal power supply module, and is configured to disconnect the electrical connection between the internal power supply module and the control module, the wireless communication module and the alarm module when the output voltage of the external power supply module is higher than the voltage of the internal power supply module.

[0016] According to one aspect of the utility model, the alarm device further comprises an outer cover, the outer cover is an integrated structure, the outer cover is detachably arranged on the base, and the functional part is arranged between the outer cover and the base.

[0017] According to one aspect of the utility model, the alarm module includes a light emitter and / or a buzzer, the outer cover is arranged around the circumference of the light emitter and / or the buzzer and covers the top surface of the light emitter and / or the buzzer, the outer cover is a light-transmitting structure, or the outer cover is processed with a hollow portion.

[0018] According to one aspect of the utility model, the wireless communication module includes an antenna, which is close to the outer cover and arranged in the circumference of the light emitter and / or buzzer, and is spaced apart from the light emitter and / or buzzer; the position of the antenna avoids the light emitting surface of the light emitter.

[0019] According to one aspect of the utility model, the alarm device also includes a middle shell, which is arranged between the outer cover and the base; the internal power supply module also includes a battery compartment, which is arranged on a side of the middle shell facing the base, and the functional part is arranged on a side of the middle shell facing the outer cover.

[0020] According to one aspect of the utility model, the battery compartment comprises:

[0021] a terminal, the primary battery being configured to be connectable to the terminal in a predetermined direction;

[0022] A limiting portion is arranged on the circumference of the side of the battery compartment to fix the primary battery.

[0023] According to one aspect of the utility model, the alarm device also includes a cover plate, which is arranged on a side of the base away from the middle shell, the cover plate is detachable from the base or movably connected to the base, and the position of the cover plate corresponds to the position of the battery compartment.

[0024] According to one aspect of the utility model, a stroke sensor is provided between the middle shell and the base, and the stroke sensor communicates with the functional part; when the distance between the middle shell and the base is greater than a threshold value, the stroke sensor is triggered and a separation fault signal is sent through the wireless communication module.

[0025] According to one aspect of the utility model, the utility model also includes an alarm system, the alarm system comprising:

[0026] At least one alarm device as described above, wherein the wireless communication module in the alarm device is configured to receive start / stop signals of the alarm device within the communication range.

[0027] According to one aspect of the utility model, the alarm system includes two or more alarm devices, and the alarm device is configured to send the start-stop signal to other alarm devices.

[0028] According to one aspect of the utility model, the alarm system further comprises a control center, and the control center is configured to send start and stop signals of the alarm device.

[0029] Compared with the prior art, the embodiment of the utility model provides an alarm device, wherein the internal power supply module can provide power for the functions for a long time, wherein the wireless communication module can realize wireless communication with the outside, and the alarm module is controlled by the control module to send an alarm signal, and the wireless communication module, the control module and the alarm module are powered by the internal power supply module. The output power of the primary battery is stable, and the alarm device can be kept running for a long time in the event of a power outage, thereby improving the applicability and stability of the alarm device in emergency situations, and reducing the alarm device's demand for an external power supply, so that the alarm device can operate normally for a long time even if it is not connected to an external power supply or the external power supply is disconnected for a long time.

[0030] The utility model also includes an embodiment of an alarm system, which uses the alarm device described in the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 It is a structural block diagram of the alarm device in some embodiments of the utility model;

[0033] Figure 2 is a structural block diagram of an alarm device including an external power supply module in some embodiments of the utility model;

[0034] Figure 3 is an explosion schematic diagram of an alarm device in some embodiments of the utility model;

[0035] Figure 4 It is a schematic diagram of the structure of the alarm device in some embodiments of the utility model;

[0036] Figure 5 is a schematic diagram of the positional relationship between the battery compartment, the middle shell and the base in some embodiments of the utility model;

[0037] Fig. 6A and Figure 6B It is a structural block diagram of the alarm system in different embodiments of the present utility model. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0040] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0043] The following describes embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0044] Figure 1 The structure and connection relationship of the alarm device 100 according to the embodiment of the utility model are shown below. Figure 1 The alarm device 100 will be described.

[0045] like Figure 1As shown, the alarm device 100 includes a base 110, a functional part 120 and an internal power supply module 130, wherein the base 110 can be connected to an installation location, such as by pasting or using a fixing member to fix the base 110 on a wall or ceiling.

[0046] The functional part 120 is arranged on the base 110, and the functional part 120 specifically includes a wireless communication module 121, a control module 122 and an alarm module 123. The wireless communication module 121 communicates with the control module 122, and the alarm module 123 communicates with the control module 122. The wireless communication module 121 is configured to receive an external start / stop signal. The alarm device 100 in this embodiment can be started or stopped under the control of an external wireless signal. After receiving the start / stop signal, the wireless communication module 121 transmits the start / stop signal to the control module 122. The control module 122 controls the alarm module 123 to send out an alarm signal according to the start / stop signal received by the wireless communication module 121. Specifically, the alarm signal sent by the alarm module 123 may be an acoustic signal and / or an optical signal, which is used to remind personnel that an emergency has occurred.

[0047] The internal power supply module 130 includes a primary battery 131, and the primary battery 131 is electrically connected to the wireless communication module 121, the control module 122 and the alarm module 123. The internal power supply module 130 is configured to be connected to the base 110, and uses the primary battery 131 to supply power to the functional part 120.

[0048] The self-discharge rate of the primary battery 131 is low, and it can keep the wireless communication module 121, the control module 122 and the alarm module 123 in the functional part 120 running for a long time. In a preferred embodiment of the utility model, the power of the primary battery 131 is set to be able to drive the wireless communication module 121, the control module 122 and the alarm module 123 to run at a lower power consumption for a period of not less than 1 year. Furthermore, according to the calculation of theoretical values, the primary battery 131 is preferably set to enable the wireless communication module 121, the control module 122 and the alarm module 123 to run at a lower power consumption for 2 to 3 years.

[0049] In this embodiment, the internal power supply module 130 can meet the power demand of the alarm device 100. The alarm device 100 does not need to be connected to an external power supply. The setting position of the alarm device 100 is not limited by the position of the external power supply, which has a higher degree of freedom and is conducive to reducing production costs and maintenance costs.

[0050] The internal power supply module 130 can be arranged on the base 110, for example, integrated with the functional part 120, or arranged on the side of the base 110, so as to facilitate the replacement of the primary battery 131 and avoid the situation of insufficient power supply. According to different embodiments of the utility model, the internal power supply module 130 can be arranged to be detachably connected to the base 110, so as to facilitate the replacement of the internal power supply module 130 or the primary battery 131.

[0051] like Figure 2 As shown, in other embodiments of the utility model, the internal power supply module 130 can also be configured to be fixedly connected to the base 110, for example, the internal power supply module 130 and the base 110 are welded and fixed, and the primary battery 131 can be configured to be non-removable, for example, to increase the power of the primary battery 131, or to reduce the power consumption of the wireless communication module 121, the control module 122 and the alarm module 123, so that the service life of the functional part 120 of the primary battery 131 is close, and there is no need to replace the primary battery 131 during the life cycle of the alarm device 100.

[0052] In other embodiments of the present invention, Figure 2 As shown, the alarm device 100 can also be connected to an external power supply to further improve the reliability of the alarm device 100. For example, the alarm device 100 also includes an external power supply module 140, which is electrically connected to the external power supply, and the external power supply module 140 is electrically connected to the wireless communication module 121, the control module 122 and the alarm module 123. Further, the alarm device 100 can be configured so that the external power supply module 140 supplies power to the wireless communication module 121, the control module 122 and the alarm module 123 in priority to the internal power supply module 130 to avoid consuming the power of the primary battery 131. For example, the external power supply module 140 can be placed at a high potential through circuit design so that the external power supply module 140 supplies power first.

[0053] Specifically, Figure 2As shown, according to a preferred embodiment of the present utility model, the alarm device 100 further includes a comparator 150, the comparator 150 is electrically connected to the internal power supply module 130 and the external power supply module 140, and the comparator 150 is configured to disconnect the electrical connection between the internal power supply module 130 and the wireless communication module 121, the control module 122 and the alarm module 123 when the output voltage of the external power supply module 140 is higher than the output voltage of the internal power supply module 130. Specifically, for example, the output voltage of the primary battery 131 in the internal power supply module 130 when fully charged and unloaded is 3.17V, and the output voltage of the external power supply module 140 under normal conditions can be set to be higher than the output voltage of the primary battery 131 when fully charged and unloaded, for example, 3.3V. In this embodiment, by detecting the output voltage of the external power supply module 140, the internal power supply module 130 is controlled to discharge, and when the alarm device 100 can obtain power from an external power source through the external power supply module 140, the internal power supply module 130 can reduce power consumption and extend the service life of the primary battery 131. Furthermore, the comparator 150 may include a variety of electronic components, and the electronic components may be integrated on a circuit board.

[0054] According to a preferred embodiment of the present utility model, Figure 2 As shown, the internal power supply module 130 also includes a protection circuit 132, which is configured to prevent the primary battery 131 from reverse charging. The protection circuit 132 is composed of various electrical components such as MOS tubes, diodes, and triodes. Through circuit design, when the output voltage of the internal power supply module 130 is lower than the output voltage of the external power supply module 140, the external power supply module 140 is prevented from supplying power to the internal power supply module 130, and the primary battery 131 is prevented from reverse charging. The damage or overheating of the primary battery 131 can be avoided, and the safety of the internal power supply module 130 can be improved.

[0055] like Figure 3 and Figure 4 As shown, in a preferred embodiment of the utility model, the alarm device 100 further includes an outer cover 160. In this embodiment, the outer cover 160 is an integrated structure, which can improve the structural strength of the outer cover 160. The outer cover 160 is detachably arranged on the base 110, and the functional part 120 is arranged between the outer cover 160 and the base 110. Preferably, the internal power supply module 130 is also arranged between the outer cover 160 and the base 110. The outer cover 160 can protect the functional part 120 to prevent the electronic components in the functional part 120 from being impacted or affected by the external environment.

[0056] In a preferred embodiment, the outer cover 160 is detachably connected to the base 110, and the internal power supply module 130 is arranged between the outer cover 160 and the base 110. When it is necessary to replace the internal power supply module 130 or replace the primary battery 131 therein, the outer cover 160 can be removed from the base 110. After the replacement is completed, the outer cover 160 can be installed on the base 110.

[0057] like Figure 3 As shown, according to a preferred embodiment of the utility model, the alarm module 123 includes a light emitter 1231 and / or a buzzer 1232, and the outer cover 160 is arranged to surround the circumference of the light emitter 1231 and / or the buzzer 1232, and the outer cover 160 can also cover the top surface of the light emitter 1231 and / or the buzzer 1232. Specifically, the outer cover 160 can be arranged in a bowl shape, and the functional part 120 is buckled between the outer cover 160 and the base 110, which is conducive to increasing the visible area of ​​the alarm device 100.

[0058] In this embodiment, the alarm module 123 includes a light emitter 1231 and / or a buzzer 1232, wherein the light emitter 1231 can emit light in a controlled manner, and the buzzer 1232 can emit sound in a controlled manner. The outer cover 160 is preferably configured as a light-transmitting structure so that the light beam emitted by the light emitter 1231 can be emitted to the outside of the outer cover 160. Or a hollow portion is processed on the outer cover 160, which is conducive to the propagation of the sound signal emitted by the buzzer 1232 to the outside of the outer cover 160. Further, the alarm module 123 includes a light emitter 1231 and a buzzer 1232, and the outer cover 160 is configured as a light-transmitting structure and is processed with a hollow portion. Preferably, the hollow portion is arranged on the top surface of the outer cover 160 to ensure that the outer cover 160 has a certain structural strength.

[0059] like Figure 3 As shown, according to a preferred embodiment of the utility model, the wireless communication module 121 includes an antenna 1211, and the antenna 1211 can be arranged close to the outer cover 160, and is arranged in the circumference of the light emitter 1231 and / or the buzzer 1232, and is spaced from the light emitter 1231 and / or the buzzer 1232. At the same time, the position of the antenna 1211 avoids the light emitting surface of the light emitter 1231 to prevent the antenna 1211 from affecting the normal operation of the light emitter 1231 and the buzzer 1232, and prevents the antenna 1211 from blocking the light signal emitted by the light emitter 1231, reducing the coverage of the alarm signal, or generating a shadow, affecting the appearance experience.

[0060] Specifically, in a preferred embodiment of the present invention, the antenna 1211 can be configured to be arc-shaped or other curved shapes, and is disposed in the gap between the alarm module 123 and the outer cover 160. Figure 3As shown in , the outer cover 160 has an arc-shaped side surface and a substantially flat top surface, and the antenna 1211 may be disposed at a position avoiding the top surface of the outer cover 160 .

[0061] In other embodiments, the light emitter 1231 can be disposed at a position close to the base 110, for example, integrated on a circuit board, far away from the top surface of the outer cover 160. Due to the field of view of the light emitter 1231, the antenna 1211 is disposed at a position away from the light emitter 1231, close to the outer cover 160, so that the obstruction of the light emitting surface of the light emitter 1231 is relatively limited, and the position of the antenna 1211 is more flexible.

[0062] According to a preferred embodiment of the present utility model, the alarm device 100 further includes a middle shell 170, such as Figure 3 and Figure 5 As shown, the middle shell 170 is disposed between the outer cover 160 and the base 110, and the internal power supply module 130 further includes a battery compartment 133, and the primary battery 131 is disposed in the battery compartment 133. The battery compartment 133 is disposed on a side of the middle shell 170 facing the base 110, and the functional part 120 is disposed on a side of the middle shell 170 facing the outer cover 160.

[0063] In this embodiment, the middle shell 170 divides the space between the outer cover 160 and the base 110 into two different areas, wherein the functional part 120 is arranged on the side close to the outer cover 160, and the battery compartment 133 is arranged on the side close to the base 110. This facilitates quick and easy replacement of the primary battery 131, while the functional part 120 will not be disturbed.

[0064] like Figure 5 As shown, according to a specific embodiment of the utility model, the battery compartment 133 includes a terminal (not shown in the figure) and a limit portion 1331, wherein the primary battery 131 is configured to be connected to the terminal in a preset direction, for example, the terminal includes a structure to prevent reverse connection of the positive pole, and the positive and negative poles of the primary battery 131 are electrically connected to the corresponding terminals respectively.

[0065] The limiting portion 1331 is arranged on the side circumference of the battery compartment 133, and is used to fix the primary battery 131. The primary battery 131 in this embodiment is arranged to be removable and replaceable, and the setting of the limiting portion 1331 can prevent the primary battery 131 from falling off or disconnecting the electrical connection due to impact, falling, mechanical vibration, etc. The limiting portion 1331 can be arranged to surround the primary battery 131, and fix the primary battery 131 in the battery compartment 133. The limiting portion 1331 can also be arranged to have a certain elastic structure, and the primary battery 131 is fixed in the battery compartment 133 by relying on the structural elasticity.

[0066] The middle shell 170 can also provide support for the functional part 120. For example, the middle shell 170 is set to be substantially equal to the size of the overlapping part of the base 110 and the outer cover 160. The functional part 120 includes a circuit board, and the circuit board can be fixed on the middle shell 170. Preferably, the middle shell 170 can also be set to be concave in the direction of the base 110. The cavity formed by the concave in the middle shell 170 can be used to accommodate electronic components on the circuit board, so as to save space between the outer cover 160 and the base 110, which is conducive to reducing the size of the alarm device 100.

[0067] Further, in a preferred embodiment of the present invention, Figure 5 As shown, the alarm device 100 further includes a cover plate 180, which is disposed on a side of the base 110 away from the middle shell 170, and the cover plate 180 is configured to be detachable or movably connected to the base, and the position of the cover plate 180 corresponds to the position of the battery compartment 133. The cover plate 180 is configured to be removable from the base 110, or opened from the base 110, such as flipping, sliding, etc., to expose the battery compartment 133 disposed on the middle shell 170. This embodiment improves the convenience of maintaining the alarm device 100, and can more conveniently replace the primary battery 131. After the alarm device 100 is removed from the installation position, the primary battery 131 can be quickly replaced without affecting other parts and electronic components.

[0068] According to a preferred embodiment of the utility model, a travel sensor (not shown in the figure) is further provided between the middle shell 170 and the base 110. The travel sensor may be, for example, a travel switch or a distance sensor. The travel sensor communicates with the functional part 120. For example, the travel switch is connected to the circuit board of the functional part 120. When the distance between the middle shell 170 and the base 110 is greater than a threshold value, the travel sensor is triggered, and a separation fault signal is sent through the wireless communication module 121. When the distance between the middle shell 170 and the base 110 is greater than a threshold value, it indicates that the middle shell 170 and the base 110 may be separated, and a separation fault signal is sent through the wireless communication module 121, so that personnel are aware that the alarm device 100 may fail or be dismantled, and timely inspection and maintenance are carried out.

[0069] The utility model also includes an embodiment of an alarm system 1, which includes at least one alarm device 100 as described in the above embodiments, and the wireless communication module 121 in the alarm device 100 is configured to receive start / stop signals of the alarm device 100 within the communication range.

[0070] In the working environment of the alarm system 1, the start and stop signals of the alarm device 100 can be issued through the user terminal, the control center, other alarm devices 100, sensors, etc. For example, after the user determines the emergency situation based on observation or data analysis, the start and stop signals of the alarm device 100 can be issued through the user terminal, or a signal transmitting device can be integrated on the sensor. The sensor can be a smoke sensor, a temperature sensor, a brightness sensor, a water level sensor, or a hazardous gas sensor according to the specific application scenario. After the sensor meets the threshold condition, the start and stop signals of the alarm device 100 can be issued. After the alarm device 100 receives the start and stop signal, the alarm module 123 therein sends an alarm signal.

[0071] In a specific embodiment of the utility model, the start and stop signals of the alarm device 100 can apply a variety of available wireless communication technologies, such as SUB-1G, NB-IOT, CAT1, Bluetooth, WiFi, etc., and can also be compatible with multiple signal transmission methods. Further, the start and stop signals of the alarm device 100 can be set with a verification code to prevent the alarm device 100 from being triggered by mistake and affecting the service life of the primary battery 131. Further, the verification code can be set to encrypted communication and perform a verification check action.

[0072] Specifically, Fig. 6A As shown, the alarm system 1 includes two or more of the aforementioned alarm devices 100, and the alarm device 100 is configured to send a start / stop signal to other alarm devices 100. When one alarm device 100 in the alarm system 1 receives the start / stop signal, the alarm device 100 can send a start / stop signal to other alarm devices 100. For example, in a production safety system, a monitoring device is provided at a certain location, such as a sensor for monitoring dangerous gas leakage. The sensor can send a start / stop signal to the alarm device 100. When dangerous gas leakage occurs, the sensor sends a start signal to the alarm device 100. At the same time, due to the limited range of wireless communication, the communication range of the sensor may not cover all the alarm devices 100 in the alarm system 1. The start signal can be transmitted to multiple alarm devices 100 through communication between the alarm devices 100, thereby expanding the coverage of the alarm system 1.

[0073] In other embodiments of the present invention, Figure 6BAs shown, the alarm system 1 also includes a control center 200, which is configured to send a start / stop signal of the alarm device 100, and the alarm system 1 can receive the start / stop signal and start or stop. For example, in a fire alarm system, the control center 200 communicates with multiple sensors, such as smoke sensors, temperature sensors, light sensors, etc. The control center 200 can aggregate the signals of all sensors and determine whether a fire has occurred based on a preset algorithm. When a fire occurs, a start signal of the alarm device 100 is sent, and the alarm device 100 starts after receiving the start signal. When the danger is eliminated, the control center 200 can send a stop signal, and the alarm device 100 stops after receiving the stop signal. In this embodiment, the alarm device 100 can also send a start / stop signal to the outside to expand the coverage of the alarm system 1.

[0074] Finally, it should be noted that the above description is only an embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An alarm device, characterized in that: include: Pedestal; A functional part, the functional part is arranged on the base, and the functional part includes: A wireless communication module, wherein the wireless communication module is configured to receive an external start / stop signal; a control module, the control module communicating with the wireless communication module; and an alarm module, the alarm module communicates with the control module, and the control module is configured to control the alarm module to send an alarm signal according to the start-stop signal; An internal power supply module, wherein the internal power supply module comprises a primary battery, and the primary battery is electrically connected to the wireless communication module, the control module and the alarm module.

2. The alarm device according to claim 1, characterized in that: The power of the primary battery is configured to be able to drive the control module, the wireless communication module and the alarm module to operate for no less than 1 year.

3. The alarm device according to claim 1, characterized in that: It also includes an external power supply module, which is electrically connected to an external power supply, and is electrically connected to the control module, the wireless communication module and the alarm module, and the external power supply module supplies power to the control module, the wireless communication module and the alarm module in priority to the internal power supply module.

4. The alarm device according to claim 3, characterized in that: It also includes a comparator, which is electrically connected to the external power supply module and the internal power supply module, and is configured to disconnect the electrical connection between the internal power supply module and the control module, the wireless communication module and the alarm module when the output voltage of the external power supply module is higher than the output voltage of the internal power supply module.

5. The alarm device according to any one of claims 1 to 4, characterized in that: It also includes an outer cover, which is an integrated structure. The outer cover is detachably arranged on the base, and the functional part is arranged between the outer cover and the base.

6. The alarm device according to claim 5, characterized in that: The alarm module includes a light emitter and / or a buzzer, the outer cover is arranged around the circumference of the light emitter and / or the buzzer and covers the top surface of the light emitter and / or the buzzer, and the outer cover is a light-transmitting structure, or the outer cover is processed with a hollow portion.

7. The alarm device according to claim 6, characterized in that: The wireless communication module includes an antenna, which is close to the outer cover and arranged in the circumference of the light emitter and / or buzzer and is spaced apart from the light emitter and / or buzzer; the position of the antenna avoids the light emitting surface of the light emitter.

8. The alarm device according to claim 5, characterized in that: It also includes a middle shell, which is arranged between the outer cover and the base; the internal power supply module also includes a battery compartment, which is arranged on a side of the middle shell facing the base, and the functional part is arranged on a side of the middle shell facing the outer cover.

9. The alarm device according to claim 8, characterized in that: The battery compartment comprises: a terminal, the primary battery being configured to be connectable to the terminal in a predetermined direction; A limiting portion is arranged on the circumference of the side of the battery compartment to fix the primary battery.

10. The alarm device according to claim 8, characterized in that: It also includes a cover plate, which is arranged on a side of the base away from the middle shell, the cover plate is detachable from the base or movably connected to the base, and the position of the cover plate corresponds to the position of the battery compartment.

11. The alarm device according to claim 8, characterized in that: A stroke sensor is provided between the middle shell and the base, and the stroke sensor communicates with the functional part; when the distance between the middle shell and the base is greater than a threshold, the stroke sensor is triggered and a separation fault signal is sent through the wireless communication module.

12. An alarm system, characterized in that: include: At least one alarm device according to any one of claims 1 to 11, wherein the wireless communication module in the alarm device is configured to receive start and stop signals of the alarm device within the communication range.

13. The alarm system according to claim 12, characterized in that: It comprises two or more alarm devices, and each alarm device is configured to send the start-stop signal to other alarm devices.

14. The alarm system according to claim 12, characterized in that: It also includes a control center, which is configured to send start and stop signals of the alarm device.

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