CN105913622A - WiFi fire alarm relay - Google Patents

Abstract

The invention discloses a WiFi fire alarm relay which comprises a shell, wherein the shell consists of a base and an upper cover; a circuit board and a power supply module for providing power are mounted inside the base; an RF receiving module for receiving a fire alarm signal transmitted from each external registered fire alarm, a single chip microcomputer control module for outputting alarm information after the fire alarm signal received by the RF receiving module is computed and processed inside, and a WiFi module for reporting the alarm information output from the single chip microcomputer control module to a cloud server through a wireless network are integrated on the circuit board; a function switch enabling the single chip microcomputer control module to recognize, learn, remember and register a communication signal transmitted from each fire alarm is further arranged inside the base; a button for pressing an operation function switch is mounted on the upper cover; a sliding switch for controlling a power supply module to supply or cut off power is assembled on a side surface of the shell in a sliding manner.

Description

A WiFi fire alarm repeater

technical field

The invention relates to a fire alarm device, in particular to a WiFi fire alarm repeater for receiving a fire alarm signal and sending the signal to a server.

Background technique

Along with modern hotel, restaurant, place of entertainment and family etc. use fire, the increase of electricity consumption, the frequency that various fires take place is more and more higher. In order to be able to find out early to avoid heavy loss of life and property, people are now generally equipped with alarm devices. There are many types of alarms in the prior art. From the perspective of principle and function, there are mainly ion, photoelectric and temperature-sensitive types. The alarm uses the high-sensitivity detection elements installed inside to capture abnormal changes in temperature and gas content in the air and send out alarm signals. . However, the alarms sold on the market generally only have an automatic alarm function and cannot be operated manually. However, due to the long-term use of the alarm in different environments, the sensitivity may decrease or fail under the influence of factors such as dust and humidity, or due to the occurrence of If the fire is in the early stage, or the alarm cannot be detected for other reasons, the alarm will not be able to be used. And the existing fire alarm mainly notifies everyone locally by sirens and warning lights, and cannot remotely transmit fire monitoring and alarm information through the Internet.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device that can convert the fire alarm signal sent by the fire alarm and connect to the cloud server through the WiFi signal, so as to realize the connection between the fire alarm signal and the cloud server. A WiFi fire alarm repeater.

The technical solution adopted by the present invention to solve the above technical problems is: a WiFi fire alarm repeater, the repeater includes a housing composed of a base and an upper cover, and a circuit board is installed in the base to provide Electric power supply module; the circuit board is integrated with an RF receiving module for receiving fire alarm signals from each registered fire alarm in the outside world and a single-chip microcomputer control module that outputs alarm information after internal calculation and processing of the fire alarm signals received by the RF receiving module And report the alarm information output by the single-chip microcomputer control module to the WiFi module of the cloud server through the wireless network; there is also a function switch in the base that enables the single-chip microcomputer control module to identify, learn and register the contact signals sent by each fire alarm. A button for pressing the control function switch is installed on the upper cover; a sliding switch for controlling the power supply of the power supply module is installed on the side sliding of the housing.

In order to optimize the above technical solutions, the present invention also includes the following improved technical solutions.

Above-mentioned RF receiving module has receiving antenna, and the fire alarm signal processing chip that amplifies the receiving signal processing and sends to the single-chip microcomputer control module; The single-chip microcomputer control module has the single-chip microcomputer processing chip; Connection; the DO port of the fire alarm signal processing chip is connected with the P60 port of the single-chip microcomputer processing chip.

The above-mentioned WiFi module has a WiFi signal processing chip and a WiFi antenna; the PA11 port of the WiFi signal processing chip is connected with the P62 port of the single-chip processing chip; the PA12 port of the WiFi signal processing chip is connected with the P66 port of the single-chip processing chip; the WiFi signal processing The PB11 port of the chip is connected with the P65 port of the single-chip microcomputer processing chip; the PA15 port of the WiFi signal processing chip is connected with the P61 port of the single-chip microcomputer processing chip.

The above-mentioned base has a rectangular shell wall with rounded corners, inside the rectangular shell wall there is a cavity for fixing the power supply module and the circuit board; an installation body is made at the four corners of the cavity, and the installation body has a circular jack; the upper cover The four corners have cylindrical plugs matched with the jacks, and the outer walls of the cylindrical plugs are integrated with limiting side plates.

The upper surface of the above-mentioned upper cover is formed with a groove surface, and an indicator light installation hole is processed in the groove surface, and an LED indicator light connected with the circuit board line for displaying the working state of the repeater is embedded in the indicator light installation hole. The groove surface is embedded with a transparent decorative panel that matches the shape of the groove surface. The surface of the decorative panel is made with concentric circular grooves that can improve the decorative beauty; the upper cover is also made with a raised console. The console is formed with a round through hole, the button is slidably installed in the round through hole and matched with the pressing contact of the function switch, and the circuit board is provided with a buzzer block that provides a warning sound in the form of sound.

The method for memory registration of the fire alarm by the above-mentioned single-chip control module is: press and hold the button and release it when the LED indicator lights up, and the LED indicator flickers at a frequency of 1Hz to indicate that the repeater enters the learning state of the fire alarm. Press the test button on the fire alarm to make it send a contact signal, and the RF receiving module of the repeater will output to the single-chip control module after receiving the contact signal, and the single-chip control module will store the fire alarm according to the storage location, and control The LED indicator light flashes 3 times quickly and at the same time, the buzzer block emits a sound of "Bi", indicating that the registration is successful.

A battery compartment is formed in the above cavity, and the battery compartment has a battery compartment wall integrally connected with the base. The battery compartment is formed with a battery compartment door at the bottom of the base, and a battery cover that matches the battery compartment door is provided at the bottom of the base ; One side of the wall of the battery compartment is fixedly installed with a battery stamping piece.

The top of the above-mentioned battery compartment wall is formed with at least two supports that match the bottom of the upper cover; the side wall of the battery compartment wall is integrally formed with a mounting column, and the mounting column is formed with a threaded inner hole; the function switch is fixed on the mounting column ( 71b) above; a plurality of first circuit board supports are formed around the wall of the battery compartment, and a plurality of second circuit support bodies are formed on the inner wall of the base, and the heights of the first circuit board support bodies and the second circuit support bodies are all mounting columns Half of the circuit board is fixed on the first circuit board support body and the second circuit support body.

There are openings at the joints of the above-mentioned base and the upper cover respectively, and the openings have side sliding walls, and the sliding switch is slid in the side sliding walls. During the power-on operation, the LED indicator flashes once and the buzzer emits a "Bi", indicating that the power-on operation is completed.

The wireless frequency of the above-mentioned RF receiving module is 433.92Mhz, the WiFi frequency of the WiFi module (32) is 2.4GHz, and the WiFi module is responsible for communicating with the cloud server through the WiFi router; the repeater can be configured and associated with the mobile phone, and the cloud server is receiving After receiving the alarm information from the repeater, it will be sent to the mobile phone associated with the repeater in the form of SMS.

Compared with the prior art, the WiFi fire alarm repeater of the present invention is responsible for receiving 433MHz fire alarm signals through a single-chip microcomputer processing chip and an RF receiving module. The single-chip processing chip is also responsible for sending the received fire alarm signal to the WiFi module. The WiFi module processes the fire alarm signal data obtained by communicating with the single-chip processing chip and sends it to the server in the cloud, thus completing the 433MHz fire alarm signal data online function of the fire alarm. The MCU control module, the WiFi module and the RF receiving module work together to complete the fire alarm signal relay function. The cloud server transmits the data to the mobile app associated with the WiFi fire alarm repeater, and prompts the user for the corresponding information of the alarm.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the embodiment of the present invention;

Figure 2 is a schematic diagram of assembly and disassembly of an embodiment of the present invention;

Fig. 3 is a functional block diagram of an embodiment of the present invention;

Fig. 4 is a schematic circuit diagram of an RF receiving module according to an embodiment of the present invention;

Fig. 5 is the circuit schematic diagram of the single-chip microcomputer control module of the embodiment of the present invention;

FIG. 6 is a schematic diagram of a WiFi module circuit according to an embodiment of the present invention.

detailed description

Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

1 to 6 are schematic structural views of the present invention.

The reference signs therein are: base 1, cavity 11, installation body 12, second line support body 13, side sliding wall 14, upper cover 2, groove surface 2a, console 2b, round through hole 2c, indicator light installation Hole 2e, cylindrical plug 21, limiting side plate 21a, circuit board 3, single-chip microcomputer control module 31, WiFi module 32, RF receiving module 33, WiFi antenna 34, receiving antenna 35, fire alarm signal processing chip 36, single-chip microcomputer processing chip 37, WiFi signal processing chip 38, buzzer block 39, decorative panel 4, concentric circular groove 41, function switch 5, button 51, LED indicator 6, battery cover 7, battery compartment wall 71, support body 71a, mounting column 71b , a first circuit board support body 71c, a battery punch 72, a slide switch 8, and a power module 9.

A WiFi fire alarm repeater of the present invention is a repeater used in a WiFi fire alarm system. The repeater includes a housing composed of a base 1 and an upper cover 2, and a circuit is installed in the base 1. Board 3 and the power module 9 required to provide power to all power consumers in the repeater. The circuit board 3 is integrated with an RF receiving module 33 for receiving fire alarm signals sent by each registered fire alarm in the outside world, and a single-chip microcomputer control module 31 and a single-chip microcomputer control module 31 for outputting alarm information after internal calculation and processing of the fire alarm signals received by the RF receiving module 33. The alarm information output by the single-chip control module 31 is reported to the WiFi module 32 of the cloud server through the wireless network; the base 1 is also provided with a device for the single-chip control module 31 to recognize, learn and remember the contact signals sent by each fire alarm. The function switch 5 is equipped with a button 51 for pressing and controlling the function switch 5 on the upper cover 2; a sliding switch 8 for controlling the power supply of the power supply module 9 is installed on the side of the housing. There is also a WiFi router between the WiFi module 32 and the cloud server, and the WiFi module 32 is responsible for communicating with the cloud server through the WiFi router to realize reporting and transmission of alarm information; After receiving the fire alarm signal of the repeater, the information is transmitted to the cloud server through the WiFi module. After receiving the alarm information of the repeater, the cloud server transmits it to the mobile app associated with the repeater in the form of a text message, prompting the user to fire the alarm the corresponding information. The single-chip microcomputer control module 31 is the main functional module of the present invention, which stores a WiFi fire alarm control program inside and can configure associated memory for a mobile phone and store and register multiple fire alarms. The WiFi fire alarm repeater adopts the intermittent working mode that can save power to the greatest extent under the normal state of the fire alarm without fire alarm signal input. The so-called intermittent working mode means that the repeater wakes up from the sleep state every 5 minutes for a self-test. mode, the content of the self-test of the repeater includes whether the wireless communication with each registered fire alarm and the cloud server is normal and the detection of its own power. When the repeater detects the fire alarm signal sent by the fire alarm, it will be woken up immediately to complete the corresponding reporting function.

In the embodiment, as shown in FIG. 3 , the RF receiving module 33 has a receiving antenna 35 and a fire alarm signal processing chip 36 that processes and amplifies the received signal and sends it to the single-chip microcomputer control module 31 . The single-chip microcomputer control module 31 has a single-chip microcomputer processing chip 37 . The CE port of the fire alarm signal processing chip 36 is connected with the P53 port of the single-chip microcomputer processing chip 37. The DO port of the fire alarm signal processing chip 36 is connected with the P60 port of the single-chip microcomputer processing chip 37.

In the present embodiment, the wireless frequency of the RF receiving module 33 of the present invention is 433.92Mhz, the WiFi frequency of the WiFi module 32 is 2.4GHz, the receiving antenna 35 can receive the 433.92Mhz fire alarm signal sent by the fire alarm, and the fire alarm signal processing chip 36 is BQ3123 chip. The single-chip processing chip 37 is an EM78P156 chip. The single-chip microcomputer processing chip 37 and the RF receiving module 33 are responsible for receiving the 433.92Mhz fire alarm signal. The single-chip processing chip 37 is also responsible for sending the received fire alarm signal to the WiFi module 32 after internal calculation and processing.

The WiFi module 32 has a WiFi signal processing chip 38 and a WiFi antenna 34 . The WiFi signal processing chip 38 is an EMW3162 chip. The PA11 port of the WiFi signal processing chip 38 is connected with the P62 port of the single-chip microcomputer processing chip 37 . The PA12 port of the WiFi signal processing chip 38 is connected with the P66 port of the single-chip microcomputer processing chip 37 . The PB11 port of the WiFi signal processing chip 38 is connected with the P65 port of the single-chip microcomputer processing chip 37 . The PA15 port of the WiFi signal processing chip 38 is connected with the P61 port of the single-chip microcomputer processing chip 37 .

In the embodiment, as shown in Figure 2, the base 1 has a rectangular shell wall with rounded corners, and a cavity 11 for fixing the power module 9 and the circuit board 3 is provided inside the rectangular shell wall; mounting bodies 12 are formed at the four corners of the cavity 11 , The mounting body 12 has a circular socket; the four corners of the upper cover 2 have a cylindrical plug 21 that matches the socket, and the outer wall of the cylindrical plug 21 is integrally formed with a limiting side plate 21a.

In the embodiment, please continue to refer to Fig. 2, the upper surface of the upper cover 2 is formed with a grooved surface 2a, the grooved surface 2a is processed with an indicator light installation hole 2e, and the indicator light installation hole 2e is embedded with a circuit board 3 circuit Connect the LED indicator light 6 used to display the working state of the repeater, and the groove surface 2a is embedded with a transparent decorative panel 4 that matches the shape of the groove surface 2a. The surface of the decorative panel 4 is shaped to improve the decoration. Aesthetically concentric circular grooves 41; the upper cover 2 is also shaped on a raised console 2b, and the console 2b is shaped on a round through hole 2c, and the button 51 is slidably installed in the round through hole 2c and is pressed into contact with the function switch 5. In cooperation, the circuit board 3 is provided with a buzzer block 39 that provides a warning sound in the form of sound.

A battery compartment is formed in the cavity 11 of the present invention, and the battery compartment has a battery compartment wall 71 integrally connected with the base 1. The battery compartment is formed with a battery compartment door at the bottom of the base 1. The matching battery cover plate 7; a battery punching part 72 is fixedly installed on one side of the battery compartment wall 71.

The top of the battery compartment wall 71 is formed with at least two supports 71a that match the bottom of the upper cover 2; the side wall of the battery compartment wall 71 is integrally formed with a mounting column 71b, and the mounting column 71b is formed with a threaded inner hole; the function switch 5 passes Screws are fixed on the mounting column 71b; a plurality of first circuit board supports 71c are formed around the battery compartment wall 71, and a plurality of second circuit supports 13 are formed on the inner wall of the base 1, the first circuit board supports 71c and the second The height of the circuit support body 13 is half of the height of the mounting column 71b, and the circuit board 3 is fixed on the first circuit board support body 71c and the second circuit support body 13 . As can be seen from FIG. 1 , there is a switch column on the function switch 5 , which is connected to the button 51 .

The base 1 and the upper cover 2 are respectively formed with openings, the openings have a side sliding wall 14, and the sliding switch 8 is slid in the side sliding wall 14. The sliding switch 8 has an OFF gear and an ON gear, and when the sliding switch 8 is turned to When the ON gear is used for power-on operation, the buzzer block 39 emits a sound of "Bi" when the LED indicator light 6 flickers once, indicating that the power-on operation is completed.

The repeater of the present invention can register 25 fire alarms, and can be associated with 5 mobile phone APPs. All functions of the repeater are realized through the control of the single-chip microcomputer control module 31, and the repeater stores fire alarms. The registration method is that the single-chip control module 31 performs memory registration on the fire alarm as follows: press and hold the button 51 on the repeater, release it when the LED indicator 6 is on, and the LED indicator 6 flickers at a frequency of 1 Hz to indicate that the relay The device enters the learning state to the fire alarm, and now presses the test key on the fire alarm to make it send a contact signal, and the RF receiving module 33 of the repeater outputs to the single-chip control module 31 after receiving the contact signal, and the single-chip control module 31 After the fire alarm is stored in memory according to the storage location, the control LED indicator light 6 flashes 3 times quickly and the buzzer block 39 is controlled to emit a sound of "Bi", indicating that the fire alarm has been successfully registered. The repeater can register 25 fire alarms in sequence. If the repeater does not receive the contact signal after 60s, the repeater will automatically exit the learning state. If in the learning state, short press the button 51, the repeater will exit the learning state and enter the sleep state. If it is in the learning state, the repeater will sound "Bi" every 3s to indicate that it has received repeated learning fire alarms.

In the embodiment, only the mobile phone APP associated with the repeater, the cloud server can send data to the mobile phone APP after receiving the alarm information of the repeater, and the steps for associating and configuring the mobile phone APP and the repeater are as follows:

1. Press the button 51 on the repeater, and release the button 51 when the LED indicator 6 is on;

2. The LED indicator 6 flickers at a frequency of 1Hz, indicating that the repeater is in the learning state;

3. Press the button 51 again until the LED indicator light 6 goes out and then release the button 51;

4. When the sound of "Bi" is heard, the LED indicator 6 flashes at a frequency of 1Hz, indicating that the repeater enters the configuration state;

5. Open the mobile App, enter the configuration mode, fill in the password of the WiFi router in the App, and start the configuration;

6. When the repeater receives the configuration information of the mobile App, the LED indicator 6 will flash 3 times at the same time with a sound of "Bi", indicating that the mobile App configuration is successful.

7. After the configuration is successful, the repeater will connect to the WiFi wireless router to send information;

8. After receiving the information, the mobile App will display the information of the repeater and fire alarm.

Note: If the repeater does not receive the configuration information within 60s, the LED indicator 6 goes off and exits the configuration state;

If the repeater is in the configuration state, press the button 51 for a short time, the LED indicator 6 will go out, and exit the configuration state.

When the repeater of the present invention needs to return to the factory state and clear the registered fire alarm and associated mobile phone App, the method is as follows:

1. Press the button 51 on the repeater for 5 seconds, and then release the button 51 after the LED indicator 6 lights up and goes out;

2. Release the button 51 and sound "Bi" at the same time, indicating that the clearing is successful.

The preferred embodiment of the present invention has been illustrated, and various changes or modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims (10)

1. A WiFi fire alarm repeater, the repeater includes a housing formed by a base (1) and an upper cover (2), and a circuit board (3) is installed in the base (1) ) and a power supply module (9) for providing power; it is characterized in that: the described circuit board (3) is integrated with an RF receiving module (33) for receiving the fire alarm signal sent by each registered fire alarm in the outside world And the single-chip microcomputer control module (31) that outputs the alarm information after the fire alarm signal received by the RF receiving module (33) is internally calculated and processed, and the alarm information output by the single-chip control module (31) is reported to the WiFi module of the cloud server through the wireless network ( 32); said base (1) is also provided with a function switch (5) that enables the single-chip microcomputer control module (31) to identify, learn and register the contact signal sent by each fire alarm, and said upper cover (2) A button (51) for pressing and manipulating the function switch (5) is installed on the top; a slide switch (8) for controlling the power supply of the power supply module (9) is slidably equipped on the side of the housing. 2. A kind of WiFi fire alarm repeater according to claim 1, is characterized in that: described RF receiving module (33) has receiving antenna (35), and after receiving signal processing and amplifying, send to single-chip microcomputer control module The fire alarm signal processing chip (36) of (31); Described single-chip microcomputer control module (31) has single-chip microcomputer processing chip (37); The CE port of described fire alarm signal processing chip (36) and the P53 of single-chip microcomputer processing chip (37) The ports are connected; the DO port of the fire alarm signal processing chip (36) is connected with the P60 port of the single-chip microcomputer processing chip (37). 3. A kind of WiFi fire alarm repeater according to claim 2, is characterized in that: described WiFi module (32) has WiFi signal processing chip (38) and WiFi antenna (34); Described WiFi signal processing The PA11 port of chip (38) is connected with the P62 port of single-chip processing chip (37); the PA12 port of described WiFi signal processing chip (38) is connected with the P66 port of single-chip processing chip (37); The PB11 port of the chip (38) is connected with the P65 port of the single-chip processing chip (37); the PA15 port of the WiFi signal processing chip (38) is connected with the P61 port of the single-chip processing chip (37). 4. A WiFi fire alarm repeater according to any one of claims 1 to 3, characterized in that: the base (1) has a rectangular shell with rounded corners, and inside the rectangular shell there is The cavity (11) for fixing the power supply module (9) and the circuit board (3); an installation body (12) is formed at the four corners of the cavity (11), and the installation body (12) has a circular plug Holes; the four corners of the upper cover (2) have cylindrical plugs (21) that match the sockets, and limit side plates (21a) are integrally formed on the outer walls of the cylindrical plugs (21). 5. A kind of WiFi fire alarm repeater according to claim 4, is characterized in that: the upper surface of described loam cake (2) is shaped on groove surface (2a), and the processing in this groove surface (2a) There is an indicator light installation hole (2e), and an LED indicator light (6) connected to the circuit board (3) for displaying the working state of the repeater is embedded in the indicator light installation hole (2e). The groove surface (2a) is embedded with a transparent decorative panel (4) matching the shape of the groove surface (2a), and the surface of the decorative panel (4) is shaped on concentric circular grooves ( 41); the upper cover (2) is also shaped on a raised console (2b), the console (2b) is shaped on a round through hole (2c), and the button (51) is slidably installed in the round through hole In (2c) and in cooperation with the pressing contact of the function switch (5), the circuit board (3) is provided with a buzzer block (39) that provides warning sounds in the form of sound. 6. A kind of WiFi fire alarm repeater according to claim 5, characterized in that: said single-chip microcomputer control module (31) carries out memory registration method for fire alarm: press and hold button (51) when LED indicates Release the light (6) when it is on, and the LED indicator light (6) will flicker at a frequency of 1Hz to indicate that the repeater is in the learning state of the fire alarm. At this time, press the test button on the fire alarm to make it send a contact signal. The RF receiver module (33) of the repeater outputs to the single-chip control module (31) after receiving the contact signal, and the described single-chip control module (31) controls the LED indicator light after the fire alarm is stored in memory according to the storage position. (6) Control the buzzer block (39) to emit a sound of "Bi" while flashing 3 times rapidly, indicating that the registration is successful. 7. A WiFi fire alarm repeater according to claim 6, characterized in that: said cavity (11) is formed with a battery compartment, and said battery compartment has an integral connection with the base (1) The battery compartment wall (71), the battery compartment is formed with a battery compartment door at the bottom of the base (1), and a battery cover (7) matching the battery compartment door is provided at the bottom of the base (1); One side of the wall (71) is fixedly equipped with a battery punch (72). 8. A WiFi fire alarm repeater according to claim 7, characterized in that: the top of the battery compartment wall (71) is formed with at least two supports ( 71a); the side wall of the battery compartment wall (71) is integrally formed with a mounting column (71b), and the mounting column (71b) is shaped with a threaded inner hole; the functional switch (5) is fixed on the on the above-mentioned installation column (71b); multiple first circuit board supports (71c) are formed around the battery compartment wall (71), and multiple second circuit support bodies are formed on the inner wall of the base (1) (13), the heights of the first circuit board support (71c) and the second circuit support (13) are half of the mounting column (71b), and the circuit board (3) is fixed on the on the first circuit board support (71c) and the second circuit support (13). 9. A WiFi fire alarm repeater according to claim 8, characterized in that: the joints of the base (1) and the upper cover (2) are respectively shaped with openings, and the openings have side sliding walls (14), the slide switch (8) slides and is located in the side sliding wall (14), the slide switch (8) has an OFF gear and an ON gear, and the slide switch (8) is turned to the ON gear to start the machine During the power-on operation, the described LED indicator (6) flashes once and at the same time the buzzer block (39) emits a sound of "Bi", indicating that the power-on operation is completed. 10. A kind of WiFi fire alarm repeater according to claim 9, is characterized in that: the wireless frequency of described RF receiving module (33) is 433.92Mhz, and the WiFi frequency of described WiFi module (32) is 2.4GHz, the WiFi module (32) is responsible for communicating with the cloud server through the WiFi router; the repeater can be configured and associated with the mobile phone, and the cloud server will It is transmitted as a text message to the mobile phone associated with the repeater.