Wireless temperature measuring fire extinguishing alarm device

Abstract

The utility model belongs to fire prevention and control technical field, disclose a wireless temperature measurement fire extinguishing alarm device, including wireless temperature measurement host computer, wireless temperature measurement module and fire extinguishing alarm module, each wireless temperature measurement module is interactively connected through wireless communication mode with wireless temperature measurement host computer, each fire extinguishing alarm module is connected with the signal input port of wireless temperature measurement host computer through wireless communication mode, the beneficial effects of the utility model are as follows: 1, wireless temperature measurement module and fire extinguishing alarm module all are interacted with wireless temperature measurement host computer through wireless communication mode, have solved the inconvenient problem of existing alarm device wiring. 2, wireless temperature measurement host computer is in the form of polling and alternately wakes up each wireless temperature measurement module, and the fire extinguishing alarm module is in the whole open type state, only when the fire occurs, can carry out fire extinguishing and send fire alarm signal, thereby can keep the power of fire extinguishing alarm lithium battery for a long time, and reduce the risk of short circuit fire itself.

Description

Technical Field

[0001] This utility model relates to the field of fire prevention and control technology, specifically to a wireless temperature measurement and fire extinguishing alarm device. Background Technology

[0002] Currently, the automatic temperature alarm devices on the market mainly use the following technologies:

[0003] 1. Constant Temperature Alarm Technology: This technology presets an alarm temperature threshold. When the ambient temperature reaches or exceeds this set value, the device immediately triggers an alarm. Its working principle is simple and intuitive, and its operation is stable and reliable. It is widely used in scenarios where temperature monitoring accuracy requirements are not particularly stringent.

[0004] 2. Differential Temperature Alarm Technology: This technology focuses on monitoring the rate of temperature change. By analyzing the magnitude of temperature rise per unit time, it quickly issues an alarm once the rate of temperature rise exceeds a preset standard. Compared to fixed temperature alarms, this technology can detect early signs of fire development, making it particularly suitable for locations where fires spread rapidly.

[0005] 3. Differential and Fixed Temperature Combined Alarm Technology: This technology organically combines fixed temperature and differential temperature alarm methods. An alarm can be triggered when the ambient temperature reaches a set temperature threshold or when the rate of temperature rise exceeds a specified range. This dual monitoring mechanism significantly improves the accuracy and reliability of the alarm, effectively reducing the risk of missed and false alarms.

[0006] However, in existing technologies, wires are generally used to connect the alarm device and the trigger. For application scenarios where wires cannot be used, existing technologies cannot solve the problem well. Furthermore, existing alarm devices are generally kept powered on for extended periods to detect fires promptly. However, this normally open power connection means that the internal power supply is in operation for a long time, resulting in rapid power consumption. Moreover, as the instrument is powered on, the risk of short circuits increases with the duration of use, which can easily cause unnecessary fires. Utility Model Content

[0007] To solve the above problems, this utility model provides a wireless temperature measurement and fire extinguishing alarm device, which is achieved through the following technical solution.

[0008] A wireless temperature measurement and fire extinguishing alarm device includes a wireless temperature measurement host, a wireless temperature measurement module, and a fire extinguishing alarm module. Several wireless temperature measurement modules and fire extinguishing alarm modules are installed and deployed in different fire-fighting locations. Each wireless temperature measurement module is wirelessly connected to the wireless temperature measurement host. Each wireless temperature measurement module sends a temperature reading command to each wireless temperature measurement host. Upon receiving the command, the wireless temperature measurement host is activated and sends the read temperature data back to the host. Each fire extinguishing alarm module is wirelessly connected to the signal input port of the wireless temperature measurement host. The fire extinguishing alarm module is used to extinguish fires and send alarm signals to the wireless temperature measurement host during a fire.

[0009] As a further embodiment of this utility model, the wireless temperature measurement host includes a main control IC, a power module, a human-machine interface, a status display IC, and a host radio frequency unit. The power module converts 220V AC mains power to 12V DC power to supply power to the main control IC. The human-machine interface is connected to the main control IC through the status display IC. The human-machine interface is used to display the temperature data transmitted by the wireless temperature measurement module, the fire alarm signal transmitted by the fire extinguishing alarm module, the setting information of the main control IC, historical data, and the location information of each wireless temperature measurement module and the fire extinguishing alarm module. The status display IC is used to control the human-machine interface to display the overall power status, communication status, and alarm status of the wireless temperature measurement host using LED beads of different colors. The host radio frequency unit is electrically connected to the main control IC and is used to send temperature reading commands to the wireless temperature measurement modules, receive the temperature data read by the wireless temperature measurement modules, and receive the fire alarm signal from the fire extinguishing alarm module. The main control IC is used to set the location information of each wireless temperature measurement module and the fire extinguishing alarm module, the communication address of the wireless temperature measurement host, and the channel number, synchronization number, and baud rate of the host radio frequency unit.

[0010] As a further embodiment of this utility model, the host radio frequency unit uses the 433MHz ISM band to communicate wirelessly with the wireless temperature measurement module and the fire alarm module.

[0011] As a further embodiment of this invention, the wireless temperature measurement host sends temperature reading commands to each wireless temperature measurement module in a polling manner, and the main control IC is used to set the polling interval.

[0012] As a further embodiment of this utility model, the wireless temperature measurement module includes a temperature measurement IC, a local display LCD, and a temperature measurement radio frequency unit. The temperature measurement IC is powered by a 3.6V temperature measurement lithium battery. The wireless temperature measurement module measures the temperature data of three columns through an infrared temperature measurement probe. The temperature measurement IC processes the measured temperature data and displays the highest value of the three columns on the local display LCD. The temperature measurement radio frequency unit is electrically connected to the temperature measurement IC and is used to receive the temperature reading command sent by the host radio frequency unit and wake up the temperature measurement IC. The temperature measurement radio frequency unit is also used to send the highest value of the measured temperature data of the three columns to the host radio frequency unit. The temperature measurement IC is also used to set the channel number, synchronization number, and baud rate of the temperature measurement radio frequency unit, as well as the communication address of the wireless temperature measurement module.

[0013] As a further embodiment of this utility model, the fire extinguishing alarm module includes a fire extinguishing alarm IC, a fire extinguishing device, and an alarm radio frequency unit. The fire extinguishing alarm IC and the fire extinguishing device are powered by a 3.6V fire extinguishing alarm lithium battery connected in series. The fire extinguishing device has a normally open node and a constant-temperature explosive element. When the constant-temperature explosive element reaches a preset temperature, it explodes, thereby spraying the fire extinguishing material onto the fire surface. At the same time, the normally open node is turned on. The fire extinguishing alarm IC operates when the normally open node is turned on. The alarm radio frequency unit is electrically connected to the fire extinguishing alarm IC and is used to send an alarm signal to the host radio frequency unit when the fire extinguishing alarm IC is working. The fire extinguishing alarm IC is also used to set the communication address of the fire extinguishing alarm module and the channel number, synchronization number, and baud rate of the alarm radio frequency unit.

[0014] As a further embodiment of this invention, the constant-temperature explosive element explodes at 170°C.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. It includes a wireless temperature measurement host, a wireless temperature measurement module, and a fire alarm module. Both the wireless temperature measurement module and the fire alarm module interact with the wireless temperature measurement host via wireless communication, which solves the problem of inconvenient wiring in existing alarm devices.

[0017] 2. The wireless temperature measurement host in this application wakes up each wireless temperature measurement module alternately in a polling manner. The fire extinguishing alarm module is in a normally open state. It will only extinguish the fire and send a fire alarm signal when a fire occurs. This can maintain the power of the fire extinguishing alarm lithium battery for a long time and reduce the risk of fire caused by short circuit. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 : A schematic diagram of the structure of a wireless temperature measurement and fire extinguishing alarm device according to this utility model;

[0020] Figure 2 : A schematic diagram of the structure of the wireless temperature measurement host described in this utility model;

[0021] Figure 3 : A schematic diagram of the structure of the wireless temperature measurement module described in this utility model;

[0022] Figure 4 : A schematic diagram of the structure of the fire extinguishing alarm module described in this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Wireless temperature measurement host, 101-Main control IC, 102-Power supply module, 103-Human machine interface, 104-Status display IC, 105-Host radio frequency unit, 2-Wireless temperature measurement module, 201-Temperature measurement IC, 202-Local display LCD, 203-Temperature measurement radio frequency unit, 204-Temperature measurement lithium battery, 205-Infrared temperature measurement probe, 3-Fire extinguishing alarm module, 301-Fire extinguishing alarm IC, 302-Fire extinguishing device, 303-Alarm radio frequency unit, 304-Fire extinguishing alarm lithium battery. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-4 As shown, the present invention has the following specific embodiments.

[0027] Example 1

[0028] A wireless temperature measurement and fire extinguishing alarm device includes a wireless temperature measurement host 1, a wireless temperature measurement module 2, and a fire extinguishing alarm module 3. Several wireless temperature measurement modules 2 and fire extinguishing alarm modules 3 are installed and deployed in different fire-fighting locations. Each wireless temperature measurement module 2 is wirelessly connected to the wireless temperature measurement host 1. The wireless temperature measurement module 2 sends a temperature reading command to each wireless temperature measurement host 1. Upon receiving the temperature reading command, the wireless temperature measurement host 1 is activated and sends the read temperature data back to itself. Each fire extinguishing alarm module 3 is wirelessly connected to the signal input port of the wireless temperature measurement host 1. The fire extinguishing alarm module 3 is used to extinguish fires and send alarm signals to the wireless temperature measurement host 1 during a fire.

[0029] like Figure 1 As shown, the wireless temperature measurement host 1 communicates wirelessly with the wireless temperature measurement module 2 to obtain the temperature data of the fire-fighting site measured by the wireless temperature measurement device. The wireless temperature measurement host 1 also communicates wirelessly with the fire extinguishing alarm module 3. When the fire extinguishing alarm module 3 is activated, the wireless temperature measurement host 1 will receive the alarm signal sent by the fire extinguishing alarm module 3.

[0030] Example 2

[0031] The wireless temperature measurement host 1 includes a main control IC 101, a power module 102, a human-machine interface 103, a status display IC 104, and a host radio frequency unit 105. The power module 102 converts 220V AC mains power to 12V DC power to supply power to the main control IC 101. The human-machine interface 103 is connected to the main control IC 101 through the status display IC 104. The human-machine interface 103 is used to display the temperature data transmitted by the wireless temperature measurement module 2, the fire alarm signal transmitted by the fire alarm module 3, the setting information of the main control IC 101, historical data, and the location information of each wireless temperature measurement module 2 and fire alarm module 3. The status display IC104 is used to control the human-machine interface 103 to display the overall power status, communication status, and alarm status of the wireless temperature measurement host 1 using LED beads of different colors. The host radio frequency unit 105 is electrically connected to the main control IC101 and is used to send temperature reading commands to the wireless temperature measurement module 2, receive temperature data read by the wireless temperature measurement module 2, and receive fire alarm signals from the fire extinguishing alarm module 3. The main control IC101 is used to set the location information of each wireless temperature measurement module 2 and fire extinguishing alarm module 3, the communication address of the wireless temperature measurement host 1, and the channel number, synchronization number, and baud rate of the host radio frequency unit 105.

[0032] Preferably, the main unit radio frequency unit 105 uses the 433MHz ISM band to communicate wirelessly with the wireless temperature measurement module 2 and the fire alarm module 3.

[0033] Preferably, the wireless temperature measurement host 1 sends temperature reading commands to each wireless temperature measurement module 2 in a polling manner, and the main control IC 101 is used to set the polling interval.

[0034] In this embodiment, as Figure 2 As shown, this embodiment specifically discloses the technical features of the wireless temperature measurement host 1. The functions of each unit in the wireless temperature measurement host 1 are as follows:

[0035] The main control IC101 sets the location information of each wireless temperature measurement module 2 and fire extinguishing alarm module 3, the communication address of the wireless temperature measurement host 1, and the channel number, synchronization number and baud rate of the host radio frequency unit 105; and sets the polling interval.

[0036] The power module 102 converts 220V AC mains power into 12V DC power to supply power to the main control IC 101.

[0037] The human-machine interface 103 displays the temperature data transmitted by the wireless temperature measurement module 2, the fire alarm signal transmitted by the fire extinguishing alarm module 3, the setting information of the main control IC 101, historical data, and the location information of each wireless temperature measurement module 2 and fire extinguishing alarm module 3.

[0038] The status display IC104 and the human-machine interface 103 use LEDs of different colors to display the overall power status, communication status and alarm status of the wireless temperature measurement host 1.

[0039] The main unit radio frequency unit 105 sends a temperature reading command to the wireless temperature measurement module 2, and receives the temperature data read by the wireless temperature measurement module 2, as well as the fire alarm signal from the fire extinguishing alarm module 3.

[0040] Example 3

[0041] The wireless temperature measurement module 2 includes a temperature measurement IC 201, a local display LCD 202, and a temperature measurement radio frequency unit 203. The temperature measurement IC 201 is powered by a 3.6V temperature measurement lithium battery 204. The wireless temperature measurement module 2 measures the temperature data of three columns through an infrared temperature measurement probe 205. The temperature measurement IC 201 processes the measured temperature data and displays the highest value of the three columns on the local display LCD 202. The temperature measurement radio frequency unit 203 is electrically connected to the temperature measurement IC 201 and is used to receive the temperature reading command sent by the host radio frequency unit 105 and wake up the temperature measurement IC 201. The temperature measurement radio frequency unit 203 is also used to send the highest value of the measured temperature data of the three columns to the host radio frequency unit 105. The temperature measurement IC 201 is also used to set the channel number, synchronization number, baud rate of the temperature measurement radio frequency unit 203, and the communication address of the wireless temperature measurement module 2.

[0042] In this embodiment, as Figure 3As shown, this embodiment specifically discloses the technical features of the wireless temperature measurement module 2, and the functions of each unit in the wireless temperature measurement host 1 are as follows:

[0043] The temperature measuring IC201 processes the measured temperature data and displays the highest value from the three columns on the local display LCD202.

[0044] The local LCD202 displays the highest measured temperature data and the communication address.

[0045] The temperature measuring radio frequency unit 203 receives the temperature reading command sent by the host radio frequency unit 105 and wakes up the temperature measuring IC 201; it sends the highest value of the temperature data in the three columns to the host radio frequency unit 105; and it sets the channel number, synchronization number and baud rate of the temperature measuring radio frequency unit 203, as well as the communication address of the wireless temperature measuring module 2.

[0046] Example 4

[0047] The fire extinguishing alarm module 3 includes a fire extinguishing alarm IC 301, a fire extinguishing device 302, and an alarm radio frequency unit 303. The fire extinguishing alarm IC 301 and the fire extinguishing device 302 are powered by a 3.6V fire extinguishing alarm lithium battery 304 connected in series. The fire extinguishing device 302 has a normally open node and a constant-temperature explosive element. When the constant-temperature explosive element reaches the preset temperature, it explodes, thereby spraying the extinguishing material onto the fire surface. At the same time, the normally open node is turned on, and the fire extinguishing alarm IC 301 works when the normally open node is turned on. The alarm radio frequency unit 303 is electrically connected to the fire extinguishing alarm IC 301 and is used to send an alarm signal to the host radio frequency unit 105 when the fire extinguishing alarm IC 301 is working. The fire extinguishing alarm IC 301 is also used to set the communication address of the fire extinguishing alarm module 3 and the channel number, synchronization number, and baud rate of the alarm radio frequency unit 303.

[0048] Preferably, the constant-temperature explosive element detonates at 170°C.

[0049] In this embodiment, as Figure 4 As shown, this embodiment specifically discloses the technical features of the fire extinguishing alarm module 3, and the functions of each unit in the wireless temperature measurement host 1 are as follows:

[0050] When the internal nodes of the fire extinguishing device 302 are disconnected, the fire extinguishing alarm IC301 is de-energized and therefore normally silent; when the internal nodes of the fire extinguishing device 302 are connected, it is energized and controls the radio frequency unit to send an alarm signal; the communication address of the fire extinguishing alarm module 3 and the channel number, synchronization number and baud rate of the alarm radio frequency unit 303 are set.

[0051] When the ambient temperature reaches the preset 170℃, the fire extinguishing device 302 sprays fire extinguishing material and connects the node;

[0052] The alarm radio frequency unit 303 sends an alarm signal to the wireless temperature measurement host 1.

[0053] One specific embodiment of this utility model is as follows:

[0054] The wireless temperature measurement host 1 sends temperature reading commands to each wireless temperature measurement module 2 via a polling method through the 433MHz ISM band. After receiving the command, the temperature measurement radio frequency unit 203 of the wireless temperature measurement module 2 wakes up the temperature measurement IC 201, thereby measuring the temperature data of three columns through the three infrared temperature measurement probes 205. The temperature measurement IC 201 processes the temperature data through its built-in program, displays the highest temperature data on the local display LCD 202, and sends it to the wireless temperature measurement host 1 via the temperature measurement radio frequency unit 203 through the 33MHz ISM band. After receiving the temperature data, the wireless temperature measurement host 1 displays it on the human-machine interface 103.

[0055] The wireless temperature measurement host 1 wakes up each wireless temperature measurement module 2 in turn by polling, so that each wireless temperature measurement module 2 works alternately. Compared with continuous operation, this can save the power of the temperature measurement lithium battery 204.

[0056] When no fire occurs, the nodes in the fire extinguishing device 302 are disconnected, the fire extinguishing alarm module 3 is de-energized, and it ignores external signals. When a fire occurs, the positioning explosive element will explode when the temperature reaches 170°C, thereby spraying the fire extinguishing material onto the fire surface. At the same time, the normally open node is connected, the fire extinguishing alarm IC 301 is powered on, and a fire alarm signal is sent to the wireless temperature measurement host 1 through the alarm radio frequency unit 303.

[0057] Since the probability of fire is usually low, the fire alarm module 3 in this application is kept open for a long time, which allows the fire alarm lithium battery 304 to maintain the circuit for a long time and reduces the number of replacements.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. The selection and detailed description of these embodiments in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A wireless temperature measurement and fire extinguishing alarm device, characterized in that, The system includes a wireless temperature measurement host, wireless temperature measurement modules, and a fire alarm module. Several wireless temperature measurement modules and fire alarm modules are installed and deployed in different fire-fighting locations. Each wireless temperature measurement module interacts with the wireless temperature measurement host via wireless communication. Each wireless temperature measurement module sends a temperature reading command to each wireless temperature measurement host. Upon receiving the temperature reading command, the wireless temperature measurement host is awakened and sends the read temperature data back to the wireless temperature measurement host. Each fire alarm module connects to the signal input port of the wireless temperature measurement host via wireless communication. The fire alarm module is used to extinguish fires and send alarm signals to the wireless temperature measurement host during a fire.

2. The wireless temperature measurement and fire extinguishing alarm device according to claim 1, characterized in that, The wireless temperature measurement host includes a main control IC, a power module, a human-machine interface (HMI), a status display IC, and a host radio frequency unit. The power module converts 220V AC mains power to 12V DC power to supply the main control IC. The HMI is connected to the main control IC through the status display IC. The HMI displays temperature data transmitted by the wireless temperature measurement modules, fire alarm signals transmitted by the fire extinguishing alarm modules, settings information of the main control IC, historical data, and location information of each wireless temperature measurement module and fire extinguishing alarm module. The status display IC controls the HMI to display the overall power status, communication status, and alarm status of the wireless temperature measurement host using LEDs of different colors. The host radio frequency unit is electrically connected to the main control IC and is used to send temperature reading commands to the wireless temperature measurement modules, receive temperature data read by the wireless temperature measurement modules, and receive fire alarm signals from the fire extinguishing alarm modules. The main control IC is used to set the location information of each wireless temperature measurement module and fire extinguishing alarm module, the communication address of the wireless temperature measurement host, and the channel number, synchronization number, and baud rate of the host radio frequency unit.

3. The wireless temperature measurement and fire extinguishing alarm device according to claim 2, characterized in that, The host radio frequency unit uses the 433MHz ISM band to communicate wirelessly with the wireless temperature measurement module and the fire alarm module.

4. A wireless temperature measurement and fire extinguishing alarm device according to claim 2, characterized in that, The wireless temperature measurement host sends temperature reading commands to each wireless temperature measurement module in a polling manner, and the main control IC is used to set the polling interval.

5. A wireless temperature measurement and fire extinguishing alarm device according to claim 3, characterized in that, The wireless temperature measurement module includes a temperature measurement IC, a local display LCD, and a temperature measurement radio frequency unit. The temperature measurement IC is powered by a 3.6V temperature measurement lithium battery. The wireless temperature measurement module measures the temperature data of three columns using an infrared temperature probe. The temperature measurement IC processes the measured temperature data and displays the highest value of the three columns on the local display LCD. The temperature measurement radio frequency unit is electrically connected to the temperature measurement IC and is used to receive temperature reading commands from the host radio frequency unit and wake up the temperature measurement IC. The temperature measurement radio frequency unit is also used to send the highest value of the measured temperature data of the three columns to the host radio frequency unit. The temperature measurement IC is also used to set the channel number, synchronization number, and baud rate of the temperature measurement radio frequency unit, as well as the communication address of the wireless temperature measurement module.

6. A wireless temperature measurement and fire extinguishing alarm device according to claim 3, characterized in that, The fire extinguishing alarm module includes a fire extinguishing alarm IC, a fire extinguishing device, and an alarm radio frequency unit. The fire extinguishing alarm IC and the fire extinguishing device are powered by a 3.6V fire extinguishing alarm lithium battery connected in series. The fire extinguishing device has a normally open node and a constant-temperature explosive element. When the constant-temperature explosive element reaches a preset temperature, it explodes, thereby spraying the fire extinguishing material onto the fire surface. At the same time, the normally open node is turned on. The fire extinguishing alarm IC operates when the normally open node is turned on. The alarm radio frequency unit is electrically connected to the fire extinguishing alarm IC and is used to send an alarm signal to the host radio frequency unit when the fire extinguishing alarm IC is operating. The fire extinguishing alarm IC is also used to set the communication address of the fire extinguishing alarm module and the channel number, synchronization number, and baud rate of the alarm radio frequency unit.

7. A wireless temperature measurement and fire extinguishing alarm device according to claim 6, characterized in that, The constant-temperature explosive element explodes at 170°C.

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