Wireless alarm device

Abstract

The invention provides a wireless alarm device which comprises a front end which comprises an alarm button, an alarm button built-in battery, a first transmitting circuit, a self-generating device and a second transmitting circuit, in the process that the alarm button is pressed down to move, the self-generating device provides power supply voltage for the second transmitting circuit, the second transmitting circuit transmits an alarm signal with a second transmitting frequency, and the first transmitting circuit transmits an alarm signal with a second transmitting frequency; when the alarm button finishes moving and is locked, the battery provides power supply voltage for the first transmitting circuit, and the first transmitting circuit transmits an alarm signal of a first transmitting frequency; and the rear end can control the alarm module to send alarm prompt information according to the alarm signal. The front end adopts two sets of power supplies, namely a battery power supply and a self-generating device power supply, when the front end alarm button is pressed down, two alarm signals with different frequencies can be sent out in sequence, the two signals do not interfere with each other, the reliability of the alarm device is improved, the whole device cannot transmit signals, independent wiring is not needed, and the cost is reduced. The method can be widely applied to various scenes.

Description

Technical Field

[0001] The invention relates to the technical field of power electronic processing, and in particular to a wireless alarm device. Background Art

[0002] At present, the emergency alarm system mainly adopts the wired wiring transmission method. This method has the advantages of simple system and reliability in new construction projects, but this method has the following disadvantages:

[0003] 1. When the decoration project has been completed, the wiring needs to be re-grooved on the ground and wall and the decoration restoration cost is very high;

[0004] 2. It is not applicable in places where the wiring space is cramped, the wiring route is complex, and it is impossible to thread the wires;

[0005] 3. In places where the equipment is urgently needed, the time required for laying cables cannot meet the requirements. Summary of the invention

[0006] In order to solve the above technical problems, the first object of the present invention is to provide a wireless alarm device.

[0007] The technical solution adopted by the present invention is as follows:

[0008] An embodiment of the present invention proposes a wireless alarm device, comprising: a front end, the front end comprising: an alarm button, the alarm button having a built-in battery, a first transmitting circuit, a self-generating device, and a second transmitting circuit, when the alarm button is pressed and moved, the self-generating device is activated to provide the second transmitting circuit with a power supply voltage for a first preset time, so that the second transmitting circuit transmits an alarm signal of a second transmitting frequency through a transmitting end, when the alarm button ends movement and is locked, the first transmitting circuit is connected to the battery, and the battery provides a power supply voltage for the first transmitting circuit, so that the first transmitting circuit transmits an alarm signal of a first transmitting frequency through the transmitting end; a back end, the back end comprising: a first receiving circuit, a second receiving circuit, a single-chip microcomputer and an alarm module, the first receiving circuit is used to receive the alarm signal of the first transmitting frequency through the receiving end, the second receiving circuit is used to receive the alarm signal of the second transmitting frequency through the receiving end, and the single-chip microcomputer is used to control the alarm module to send an alarm prompt information according to the alarm signal.

[0009] The wireless alarm device proposed in the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, the alarm button includes: a button, which is arranged above the battery and the self-generating device, and when the button is pressed and moves within a set stroke, it drives the steel wire of the self-generating device to move and generate electrical energy; a buffer spring, one end of the buffer spring is connected to the battery spring, and the other end of the battery spring is fixedly connected to the inner shell; a battery-powered switch, which is fixed to the inner shell; a locking mechanism and an unlocking mechanism, the locking mechanism and the key unlocking mechanism are integrated on one side of the button shell, and when the button is pressed to reach the maximum stroke, the locking mechanism locks the button, and the battery-powered switch contacts are triggered and are in the on state, and the unlocking mechanism cooperates with the locking structure, and when the unlocking structure is triggered, the unlocking structure controls the locking structure to unlock, and the button is reset to the initial stroke.

[0011] According to one embodiment of the present invention, the locking mechanism includes: a protrusion and an elastic metal sheet, the protrusion and the elastic metal sheet are fixedly connected, and when the button is pressed, the protrusion causes the elastic metal sheet to deform downward and move to below the elastic metal sheet. When the button reaches the maximum stroke, the protrusion is blocked by the elastic metal sheet and cannot move upward and maintains its position under the action of the buffer spring.

[0012] According to one embodiment of the present invention, the unlocking mechanism comprises: a reset keyhole, a reset key is inserted into the reset keyhole and rotated at a set angle, so that when the unlocking mechanism is triggered, the lower protrusion of the reset key pushes the elastic metal sheet to rotate axially at a set angle, and the release protrusion moves upward under the action of the buffer spring, so that the button is reset to the initial stroke.

[0013] According to one embodiment of the present invention, the front end also includes: a self-excitation response circuit, which is powered by the battery; the back end also includes: a third transmitting circuit; wherein the single-chip microcomputer controls the third transmitting circuit to periodically transmit a status monitoring signal to the front end through the transmitting end, and after the front end receives the monitoring signal, it triggers the self-excitation response circuit to power on, and the self-excitation response circuit controls the first transmitting circuit to transmit a response signal to the back end according to the set delay parameters, and the response signal includes the physical address and battery status of its own front-end device. The single-chip microcomputer of the back end determines whether the front-end device has an abnormality based on the received response signal, and controls the alarm module to send an alarm prompt information when the front-end device has an abnormality.

[0014] According to one embodiment of the present invention, the single-chip microcomputer at the back end calculates the number of online front ends based on the received response signal. If the number of online front ends is a set value, it is determined that there is no abnormality in the front-end device, and the third transmitting circuit enters a sleep state; if the number of online front ends is not a set value, it is determined that there is an abnormality in the front-end device, the offline front-end device is obtained, and the alarm module is controlled to issue an alarm prompt message according to the physical address of the offline front-end device.

[0015] According to one embodiment of the present invention, the back end further includes: an external power supply and a battery.

[0016] According to an embodiment of the present invention, the alarm module includes: a screen, a digital tube and an audible and visual alarm.

[0017] According to one embodiment of the present invention, the front end is integrated in an 86-type switch box.

[0018] According to one embodiment of the present invention, the front end includes at least one.

[0019] Beneficial effects of the present invention:

[0020] The front end of the present invention adopts two sets of power supplies, namely battery power supply and self-generating device power supply. When the front end alarm button is pressed, two alarm signals with different frequencies can be sent out in sequence, so that the back-end alarm module can send out alarm information in sequence. The two alarm signals do not interfere with each other and do not affect each other, which improves the reliability of the alarm device. The entire device adopts non-signal transmission and does not require separate wiring, and has a wide range of application scenarios.

[0021] The present invention also adopts multiple redundant means such as monitoring wake-up / response mechanism to monitor the state of the front-end alarm device and the power to ensure the high reliability of the device, and has low power consumption characteristics.

[0022] The present invention supports 86 dark box installation and can be transformed into a variety of mobile and portable front ends. It is not only easy to maintain, but also can be widely used in places that need to replace wired emergency alarms and various occasions that need to quickly deploy wireless emergency alarm systems, such as: home security, duty alarms, medical / elderly care, judicial correction, financial security and campus security. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a circuit topology of a wireless alarm device according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the internal cross-sectional structure of a wireless alarm device according to an embodiment of the present invention;

[0025] Figure 3is a top view of a locking mechanism and an unlocking structure according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of circuit topology of a wireless alarm device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] Figure 1 is a schematic diagram of a circuit topology of a wireless alarm device according to an embodiment of the present invention. Figure 1 As shown, the wireless alarm device includes: a front end 100 and a back end 200.

[0029] Among them, the front end 100 includes: an alarm button 101, the alarm button 101 has a built-in battery 102, a first transmitting circuit 103, a self-generating device 104 and a second transmitting circuit 105. When the alarm button 101 is pressed and moved, the self-generating device 104 is activated to provide the second transmitting circuit 105 with a power supply voltage for a first preset time, so that the second transmitting circuit 105 transmits an alarm signal of a second transmitting frequency through the transmitting end. When the alarm button 101 stops moving and is locked, the first transmitting circuit 103 is connected to the battery 102, and the battery 102 provides a power supply voltage for the first transmitting circuit 103, so that the first transmitting circuit 103 transmits an alarm signal of a first transmitting frequency through the transmitting end. The back end 200 includes: a first receiving circuit 201, a second receiving circuit 202, a single-chip microcomputer 203 and an alarm module 204. The first receiving circuit 201 is used to receive an alarm signal of a first transmitting frequency through a receiving end, the second receiving circuit 202 is used to receive an alarm signal of a second transmitting frequency through a receiving end, and the single-chip microcomputer 203 is used to control the alarm module 204 to issue an alarm prompt message according to the alarm signal.

[0030] In the embodiment of the present invention, the front end 100 may include one or more front ends.

[0031] Specifically, the wireless alarm device of the present invention is composed of a front end 100 and a back end 200. The front end 100 can receive the user's alarm command, and the back end 200 performs data processing, such as Figure 1As shown, the front end 100 and the back end 200 are also provided with a baseband circuit, which includes: a modulation circuit, a demodulation circuit, a data register and other data processing circuits. In order to ensure high reliability and high availability, the front end 100 uses an integrated built-in battery and a button of a self-generating device, and uses two power supply modes corresponding to two alarm signal transmitting circuits to avoid the situation where the alarm fails due to the failure of a single power supply. In actual use, when the alarm button is pressed, the self-generating device 104 and the battery 102 successively power the transmitting circuit to transmit the alarm signal. First, when the alarm button 101 is pressed, the self-generating device 104 is driven to move, and the movement stroke is about 10mm. During the movement, the self-generating device 104 converts mechanical energy into electrical energy, and can generate an induced voltage of 8-10V for 200ms, and a 5V 50ms stable voltage is generated after passing through the voltage-stabilizing power supply chip, so that the second transmitting circuit 105 can transmit the second alarm signal of the second frequency; on the other hand, when the alarm button 101 is pressed to the bottom, the battery power switch is triggered and connected, and the battery 102 (which can be 23A type 12V) supplies power to the first transmitting circuit 103, and the first transmitting circuit 103 transmits the alarm signal of the first frequency. Thereafter, the first transmitting circuit 103 continues to transmit the alarm signal at a set period (such as: every 5 seconds as an alarm basic period) with a delay related to the multiple of its own physical address value until the alarm button 101 is reset. The first alarm information and the second alarm information carry the address information of the current device.

[0032] After receiving the alarm signal, the receiving circuit of the back end 200 processes the baseband circuit to obtain the address information of the front end alarm device. The single chip microcomputer 203 drives the alarm module 204 to issue an alarm prompt message according to the alarm information, and uploads the abnormal state and alarm data to the upper management machine through the data interface. The data interface supports multiple transmission protocols, including 485 protocol and Ethernet protocol to communicate with the upper computer. Therefore, the front end uses two sets of power supplies, battery power supply and self-generating device power supply. When the front end alarm button is pressed, two alarm signals of different frequencies can be issued in sequence, so that the back end alarm module can issue alarm information in sequence. The two alarm signals do not interfere with each other and do not affect each other, which improves the reliability of the alarm device. In addition, the entire device adopts signal transmission without separate wiring, and has a wide range of application scenarios.

[0033] In the implementation of the present invention, the two alarm signals may be alarm signals with different frequencies, the frequency range is 433.05-434.79 MHz, and the data transmission rate is 10 Kbps.

[0034] In one embodiment of the present invention, Figure 2 As shown, the alarm button 101 includes: a button 1011, a buffer spring 1012, a battery-powered switch 1013, a locking mechanism 1014, and an unlocking mechanism 1015.

[0035] Among them, the button 1011 is arranged above the battery 102 and the self-generating device 104. When the button 1011 is pressed and moves within the set stroke, it drives the steel wire of the self-generating device 104 to move and generate electrical energy; one end of the buffer spring 1012 is connected to the battery spring 1016, and the other end of the battery spring 1016 is fixedly connected to the inner shell 1017; the battery power switch 1013 is fixed to the inner shell 1017; the locking mechanism 1014 and the unlocking mechanism 1015 are integrated on one side of the button shell 1018 (panel). When the button 1011 is pressed to the maximum stroke, the locking mechanism 1014 locks the button 1011, and the contact of the battery power switch 1013 is triggered and is in the on state. The unlocking mechanism cooperates with the locking structure 1014 1015. When the unlocking structure 1015 is triggered, the unlocking structure 1015 controls the locking structure 1014 to unlock, and the button 1011 is reset to the initial stroke.

[0036] Specifically, Figure 2 In the figure, 10 is a circuit board for integrating related circuits, 11 is a built-in surface antenna for wireless communication, 12 is a device bottom box, and 13 is a device panel. The button 1011 has a built-in 23A high-volt alkaline battery 102 and a self-generating device 104. The battery can be opened and replaced by rotating the button cover on the upper part of the battery. The battery 102 maintains good contact and pressure on the button cover through the battery spring 1016, so that the button cover is not easy to fall off. The self-generating device 104 is located at the bottom of the button 1011, and the power generation stroke is adapted to the button stroke and the contact of the battery-powered switch 1013. When the button 1011 is pressed, the trigger drives the locking mechanism 1014, and the locking case 1011 cannot be rebounded and reset with the cooperation of the buffer spring 1012. When the locking mechanism 1014 is locked, it can ensure that the battery-powered switch 1013 is in the on state. The unlocking mechanism 1015 cooperates with the locking structure 1014. When the unlocking structure 1015 is triggered, the unlocking structure 1015 releases the button 1011 to the initial position, the battery power switch 1013 is disconnected, the battery stops supplying power to the first transmitting circuit 103, and the first transmitting circuit 103 stops transmitting the alarm signal.

[0037] Furthermore, if Figure 3 As shown, the locking mechanism 1014 includes: a protrusion 10141 and an elastic metal sheet 10142, the protrusion 10141 and the elastic metal sheet 10142 are fixedly connected, when the button 1011 is pressed, the protrusion 10141 causes the elastic metal sheet 10142 to deform downward and move to below the elastic metal sheet 10142, when the button 1011 reaches the maximum stroke, the protrusion 10141 is blocked by the elastic metal sheet 10142 and cannot move upward and maintains its position no longer changing under the action of the buffer spring 1012.

[0038] like Figure 3 As shown, the unlocking mechanism 1015 includes: a reset keyhole 10151, a reset key is inserted into the reset keyhole 10151 and rotated by a set angle (for example, 90°), so that when the unlocking mechanism 1014 is triggered, the lower protrusion of the reset key pushes the elastic metal sheet 10142 to rotate axially by a set angle, and the release protrusion 10141 moves upward under the action of the buffer spring 1012, so that the button 1011 is reset to the initial stroke.

[0039] Specifically, Figure 3 As shown, when the button 1011 is pressed and moves downward, the elastic metal sheet 10142 is pressed downward to bend, so that the protruding piece 10141 can move from above to below. After reaching below, the elastic metal sheet 10142 recovers, preventing the protruding piece from rebounding to the elastic metal sheet 10142, thereby locking the alarm button 101. When rotating clockwise, after the elastic metal sheet 10142 is turned to a certain angle, the protruding piece 10141 is forced upward by the buffer spring 1012 and moves again to above the elastic metal sheet 10142 to reset the alarm button 101. The elastic metal sheet shaft 10143 has an axially installed spring. When the reset key is removed, the elastic metal sheet 10142 returns to its original position under the action of the spring.

[0040] In the embodiment of the present invention, the alarm button 101 may be a columnar structure, containing a standard 23A battery 102, the dimensions of the battery 102 being 10 mm in diameter and 28.3 mm in length; the alarm button 101 is 16 mm in diameter and greater than 50 mm in depth.

[0041] In one embodiment of the present invention, Figure 4 As shown, the front end 100 of the above-mentioned wireless alarm device may also include: a self-excitation response circuit 106, which is powered by a battery 102; the back end 200 may also include: a third transmitting circuit 205; wherein the single-chip microcomputer 203 controls the third transmitting circuit 205 to periodically transmit a status monitoring signal to the front end 100 through the transmitting end. After the front end 100 receives the monitoring signal, it triggers the self-excitation response circuit 106 to power on, and the self-excitation response circuit 106 controls the first transmitting circuit to transmit a response signal to the back end 200 according to the set delay parameters. The response signal includes the physical address and battery status of the front-end device itself. The single-chip microcomputer 203 at the back end determines whether there is an abnormality in the front-end device based on the received response signal, and controls the alarm module 204 to send an alarm prompt message when it is determined that there is an abnormality in the front-end device.

[0042] The single-chip microcomputer 203 at the back end calculates the number of online front-ends 100 according to the received response signal. If the number of online front-ends 100 is the set value, it is determined that there is no abnormality in the front-end device, and the third transmitting circuit 205 enters a sleep state. If the number of online front-ends 100 is not the set value, it is determined that there is an abnormality in the front-end device, the offline front-end device is obtained, and the alarm module is controlled to issue an alarm prompt message according to the physical address of the offline front-end device.

[0043] Specifically, in actual application, the use of dual power supply and dual circuit solutions may still result in insufficient battery power and failure of the self-generating device at the same time. Therefore, setting up a mechanism to periodically monitor the status of the battery-powered switch and the battery power can basically prevent the simultaneous occurrence of self-generating device failure and unreliable battery-powered circuit.

[0044] In order to monitor the state and power of the battery power switch, a self-excitation response circuit 106 is designed in the front end 100, and the back end 200 periodically (for example, once every 24 hours) transmits a 10kHz monitoring signal of 1 second. When the front end receives the 10kHz monitoring signal, the self-excitation response circuit 106 works, and the self-excitation response circuit 106 controls the battery power switch to power the first transmitting circuit 103, so that the battery powers the first transmitting circuit 103 for 1 second. After powering on, the first transmitting circuit 103 transmits a response signal with a delay of 5ms multiplied by the front end physical address value (usually 1-64). The response signal contains the physical address of the front end device, the state of the battery power switch and the battery power. After receiving the response signal, the single-chip microcomputer 203 of the back end 200 determines whether the front end device has an abnormality according to the received response signal. The abnormality includes: the number of online devices at the front end is the same as the set value, the battery power switch is not working properly, and the battery is low in power. If it is determined that there is an abnormality in the front-end device, the alarm module 204 is controlled to issue an alarm prompt message; if there is no abnormality, the self-excitation response circuit 106 can enter a dormant state.

[0045] In the present invention, the single-chip microcomputer 203 can record the address information of the front end according to the response signal, and cumulatively calculate the number of all front ends. When the number of front ends is compared with the preset value, it is determined whether there is a front end device offline. When a front end device is detected to be offline, the alarm module 204 sends an alarm prompt message. Therefore, the back end adopts a method of periodically transmitting a 10kHz monitoring signal, so that the front end self-excited response is used to power the transmitting circuit and send a monitoring response signal. After the back end receives the monitoring response signal data, it judges the working status of each front end device of the entire system through comparative calculation to achieve high availability of the system. The periodic monitoring is set to once every 24 hours to avoid excessive consumption of the front end battery due to frequent response to the monitoring signal, speed up the frequency of battery replacement, and is not conducive to convenient use and cost reduction.

[0046] The set value can be set directly using a hardware dial or determined using online statistics. When used on a small scale, for example, when the number of front ends is less than 16, the set value can be set directly using a dial. If online statistics are used, repeat the process of transmitting the monitoring signal for a total of 3 times, and compare the 3 results. If the number of online front ends is the same for the 3 times, use this as the front end set value; if the 3 data are different, transmit the monitoring signal again until the 3 results are the same.

[0047] According to one embodiment of the present invention, Figure 4 As shown, the back end 200 may also include: an external power supply and a battery. When the power supply fails, the battery provides power.

[0048] According to one embodiment of the present invention, Figure 4 As shown, the alarm module includes: a screen, a digital tube, an audible and visual alarm, etc.

[0049] According to an embodiment of the present invention, the front end 100 may be integrated in an 86-type switch box, which refers to a square switch box with a side length of 86 mm.

[0050] The emergency alarm system can be networked without wiring, and is easy to deploy. It can be widely used in places where wired emergency alarms need to be replaced and various occasions where wireless emergency alarm systems need to be quickly deployed, such as home security, duty alarms, medical / elderly care, judicial correction, financial security, and campus security. The electrical connections involved in the front end 100 can be arranged using soft wires.

[0051] The alarm device provided in the embodiment of the present invention includes a front end 100 in the form of a card, a cylindrical type, a bracelet type, etc., and its main features include: supporting battery and self-generation to power the alarm signal, and the battery can be a dry cell, a rechargeable lithium battery, a button cell, etc. The back end periodically sends a monitoring signal and monitors the status of each front end alarm through the front end response feedback.

[0052] The data size transmitted by the front end 100 in the present invention is 24 bits, wherein the data is the 17th to 20th bits, corresponding to: alarm signal, response signal, high battery voltage and low battery voltage respectively. Since the amount of data frame transmitted by the front end is very small, a logic circuit can be used to implement or a small single-chip microcomputer can be used to implement frame encapsulation. The wireless data frame of the present invention has only 24 bits, and the time consumed for data transmission at 10Kbps is about 2.4ms. From the characteristics of the use of the emergency alarm system, the probability of the second transmitting circuits of multiple front ends being pressed at the same time to send an alarm signal within 2.4ms is extremely low, and the first transmitting circuit of the front end adopts a continuous transmission and a transmission mechanism delayed according to its own characteristics. Therefore, as long as the button is pressed, under the guarantee of multiple mechanism redundancy and fault-tolerant mechanism, the back end will inevitably receive the alarm signal of the front end.

[0053] In summary, according to the wireless alarm device of the embodiment of the present invention, the front end adopts two sets of power supplies, namely, battery power supply and self-generating device power supply. When the front end alarm button is pressed, two alarm signals of different frequencies can be issued in sequence, so that the back end alarm module can issue alarm information in sequence. The two alarm signals do not interfere with each other and do not affect each other, which improves the reliability of the alarm device. The entire device adopts no signal transmission, does not require separate wiring, and has a wide range of application scenarios. The present invention also adopts multiple redundant means such as monitoring wake-up / response mechanism to monitor the status and power of the front end alarm device to ensure the high reliability of the device, and has low power consumption characteristics. The present invention supports 86 dark box installation and has a deformable front end that can be transformed into a variety of mobile and portable front ends. It is not only easy to maintain, but also can be widely used in places where wired emergency alarms need to be replaced and various occasions where wireless emergency alarm systems need to be quickly deployed, such as: home security, duty alarm, medical / elderly care, judicial correction, financial security and campus security.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0057] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0058] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0059] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wireless alarm device, characterized in that: include: A front end, the front end comprising: an alarm button, the alarm button having a built-in battery, a first transmitting circuit, a self-generating device, and a second transmitting circuit; when the alarm button is pressed and moves, the self-generating device is activated to provide a power supply voltage for a first preset time to the second transmitting circuit, so that the second transmitting circuit transmits an alarm signal of a second transmitting frequency through a transmitting end; when the alarm button stops moving and is locked, the first transmitting circuit is connected to the battery, and the battery provides a power supply voltage for the first transmitting circuit, so that the first transmitting circuit transmits an alarm signal of a first transmitting frequency through the transmitting end; The back end includes: a first receiving circuit, a second receiving circuit, a single-chip microcomputer and an alarm module, wherein the first receiving circuit is used to receive an alarm signal of the first transmitting frequency through a receiving end, the second receiving circuit is used to receive an alarm signal of the second transmitting frequency through a receiving end, and the single-chip microcomputer is used to control the alarm module to issue an alarm prompt message according to the alarm signal.

2. The wireless alarm device according to claim 1, characterized in that: The alarm button comprises: A button, which is arranged above the battery and the self-generating device. When the button is pressed and moves within a set stroke, the steel wire of the self-generating device is driven to move and generate electrical energy; A buffer spring, one end of which is connected to the battery spring, and the other end of which is fixedly connected to the inner shell; a battery powered switch, the battery powered switch being fixed to the inner housing; The locking mechanism and the unlocking mechanism are integrated on one side of the button housing. When the button is pressed to the maximum stroke, the locking mechanism locks the button, and the battery-powered switch contacts are triggered and are in the on state. The unlocking mechanism cooperates with the locking structure. When the unlocking structure is triggered, the unlocking structure controls the locking structure to unlock, and the button is reset to the initial stroke.

3. The wireless alarm device according to claim 2, characterized in that: The locking mechanism includes: a protruding piece and an elastic metal sheet, the protruding piece and the elastic metal sheet are fixedly connected, and when the button is pressed, the protruding piece causes the elastic metal sheet to deform downward and move to below the elastic metal sheet, and when the button reaches the maximum stroke, the protruding piece is blocked by the elastic metal sheet and cannot move upward, and maintains its position without changing under the action of the buffer spring.

4. The wireless alarm device according to claim 3, characterized in that: The unlocking mechanism comprises: a reset keyhole, a reset key is inserted into the reset keyhole and rotated at a set angle, so that when the unlocking mechanism is triggered, the lower protrusion of the reset key pushes the elastic metal sheet to rotate axially at a set angle, and the release protrusion moves upward under the action of the buffer spring, so that the button is reset to the initial stroke.

5. The wireless alarm device according to claim 1, characterized in that: The front end further includes: a self-excitation response circuit, and the self-excitation response circuit is powered by the battery; the back end further includes: a third transmitting circuit; wherein, The single-chip microcomputer controls the third transmitting circuit to periodically transmit a status monitoring signal to the front end through the transmitting end. After the front end receives the monitoring signal, it triggers the self-excitation response circuit to power on. The self-excitation response circuit controls the first transmitting circuit to transmit a response signal to the back end according to the set delay parameters. The response signal includes the physical address and battery status of its own front-end device. The single-chip microcomputer of the back end determines whether there is an abnormality in the front-end device based on the received response signal, and controls the alarm module to send an alarm prompt information when it is determined that there is an abnormality in the front-end device.

6. The wireless alarm device according to claim 5, characterized in that: The single-chip microcomputer at the back end calculates the number of online front ends according to the received response signal. If the number of online front ends is a set value, it is determined that there is no abnormality in the front-end device, and the third transmitting circuit enters a sleep state; if the number of online front ends is not a set value, it is determined that there is an abnormality in the front-end device, the offline front-end device is obtained, and the alarm module is controlled to issue an alarm prompt message according to the physical address of the offline front-end device.

7. The wireless alarm device according to claim 1, characterized in that: The back end also includes: an external power supply and a battery.

8. The wireless alarm device according to claim 1, characterized in that: The alarm module comprises: a screen, a digital tube and an audible and visual alarm.

9. The wireless alarm device according to any one of claims 1 to 8, characterized in that: The front end is integrated in an 86-type switch box.

10. The wireless alarm device according to any one of claims 1 to 8, characterized in that: The front end includes at least one.

Images