Digital controller of fire extinguisher

Abstract

The invention relates to a fire extinguisher digital controller which comprises a shell and a control assembly arranged in the shell. The control assembly comprises a power supply circuit, a pressure sensing circuit, a temperature sensing circuit, an inclination sensing circuit and a data processing chip U1, wherein the pressure sensing circuit, the temperature sensing circuit, the inclination sensing circuit and the data processing chip U1 are electrically connected with the power supply circuit. The data processing chip U1 and the mobile inspection tour terminal are in communication connection with the data processing chip U1 through a transmission circuit. And detection data acquired by the pressure sensing circuit, the temperature sensing circuit and the inclination sensing circuit are uniformly processed by the data processing chip U1 and then are transmitted to the mobile inspection terminal by the transmission circuit. According to the technical scheme, the fire extinguisher digital controller can monitor key parameters such as the pressure, the temperature and the inclination angle of the fire extinguisher in real time, and comprehensive control over the state of the fire extinguisher is achieved.

Description

Technical Field

[0001] The invention relates to the field of fire fighting equipment, and in particular to a digital controller for a fire extinguisher. Background Art

[0002] Currently, substation fire extinguishers need to be regularly sent to designated units for inspection and maintenance. Regardless of whether they have been used, all fire extinguishers must be uniformly inspected within a specified period (usually one year). This practice leads to unnecessary waste of resources, increased maintenance costs and manpower investment, and it is difficult to ensure the real-time availability of fire extinguishers.

[0003] The traditional fire extinguisher maintenance method relies on a fixed inspection cycle, and regular inspections are required regardless of whether the fire extinguisher is used. Although this approach can ensure the basic safety of fire extinguishers, there are many shortcomings in actual operation, such as:

[0004] Fixed maintenance cycle: The current inspection system has a fixed cycle, and the inspection cycle cannot be adjusted according to the actual use of the fire extinguisher, which easily leads to over-maintenance or under-maintenance.

[0005] The usage status cannot be monitored: Traditional fire extinguishers lack status monitoring functions and cannot obtain key information such as the real-time pressure, temperature, and tilt angle of the fire extinguisher, making it difficult to detect potential safety hazards in advance.

[0006] High maintenance costs: Fire extinguishers must be inspected and maintained at specified intervals, regardless of their usage status, resulting in a large number of unused fire extinguishers also needing inspection, increasing maintenance costs.

[0007] Therefore, there is an urgent need for a solution that can monitor the status of fire extinguishers in real time to dynamically adjust the detection cycle and improve safety. Summary of the invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0009] To this end, an object of the present invention is to provide a digital controller for a fire extinguisher, which can reduce the workload of daily maintenance and improve the reliability of the use of the fire extinguisher.

[0010] To achieve the above-mentioned purpose, the technical solution of the present invention provides a digital controller for a fire extinguisher, including a shell and a control component arranged in the shell, the control component including a power supply circuit, a pressure sensing circuit, a temperature sensing circuit, a tilt sensing circuit, a data processing chip U1, which are electrically connected to the power supply circuit respectively, the data processing chip U1, and a mobile inspection terminal which is communicatively connected to the data processing chip U1 through a transmission circuit, the detection data collected by the pressure sensing circuit, the temperature sensing circuit and the tilt sensing circuit are uniformly processed by the data processing chip U1 and transmitted to the mobile inspection terminal by the transmission circuit, the mobile inspection terminal makes a logical judgment based on the received detection data, and when the fire extinguisher is in an abnormal state, the system will automatically alarm and notify the staff to conduct inspection and maintenance.

[0011] In the above technical solution, preferably, the power supply circuit includes a power supply unit, a reference voltage unit, a step-down unit, and a reset unit, and the power supply unit is at least composed of capacitors C11 and C113 connected in parallel with the LED1 and the resistor R70 connected in series, and the power supply unit is connected to the Vcc / AVcc terminal and the Gnd / AGnd terminal of the data processing chip U1;

[0012] The reference voltage unit includes a voltage chip U8, a capacitor C116, and a voltage chip U9, wherein the capacitor C116 is connected in parallel with the voltage chip U8 and then grounded, the voltage chip U9 is connected to the R terminal of the voltage chip U8, the K terminal of the voltage chip U8 is connected to the REF terminal of the data processing chip U1, and the voltage chip U9 is connected to the P1.1 terminal of the data processing chip U1;

[0013] The buck unit includes a buck chip U2 and capacitors C105-C108, wherein the capacitor C105 and the capacitor C106 are connected in parallel and connected to the VIN terminal of the buck chip U2, and the capacitor C107 and the capacitor C108 are connected in parallel and connected to the VOUT terminal of the buck chip U2;

[0014] The reset unit includes a capacitor C109, a resistor R71 and a switch SW2. The switch SW2 is connected to the capacitor C109 in parallel and then connected to the resistor R71 to control the on / off of the capacitor C109.

[0015] In any of the above technical solutions, preferably, the pressure sensing circuit is a pressure sensor H1, pin 2 of the pressure sensor H1 is connected to the P1.6 terminal of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the P1.7 terminal of the data processing chip U1.

[0016] In any of the above technical solutions, preferably, the tilt sensing circuit is a tilt sensor H3, pin 2 of the pressure sensor H1 is connected to the CH340_TX end of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the CH340_RX end of the data processing chip U1.

[0017] In any of the above technical solutions, preferably, the temperature sensing circuit includes a temperature sensing chip U33 and a resistor R80, the two ends of the resistor R are respectively connected to the DQ end and the VDD end of the temperature sensing chip U33 and then grounded, and the DQ end of the temperature sensing chip U33 is connected to the P1.2 end of the data processing chip U1.

[0018] In any of the above technical solutions, preferably, it also includes a download interface J4, pin 1 of the download interface J4 is connected to the CH340_TX end of the data processing chip U1, pin 2 of the download interface J4 is connected to the CH340_RX end of the data processing chip U1, and the communication circuit is a wireless communication module H2.

[0019] In any of the above technical solutions, preferably, it also includes a USB-to-serial port circuit composed of at least a USB-to-serial port chip U3, a capacitor C103 and a capacitor C104, the capacitor C103 is connected to the VCC terminal of the USB-to-serial port chip U3 and then grounded, the capacitor C104 is connected to the V3 terminal of the USB-to-serial port chip U3 and then grounded, the RXD terminal of the USB-to-serial port chip U3 is connected to the CH340_RX terminal of the data processing chip U1, and the TXD terminal of the USB-to-serial port chip U3 is connected to the CH340_TX terminal of the data processing chip U1.

[0020] In any of the above technical solutions, preferably, it also includes a Type-C interface circuit consisting of at least a Type-C interface chip USB2, a resistor R68 and a resistor R69, wherein the resistor R68 is connected to the CC2 end of the Type-C interface chip USB2, and the resistor R69 is connected to the CC1 end of the Type-C interface chip USB2.

[0021] In any of the above technical solutions, preferably, it further includes an analog circuit consisting of at least a capacitor C1 and a diode D1, and the capacitor C1 and the diode D1 are connected in parallel and connected to the P1.0 terminal of the data processing chip U1.

[0022] In any of the above technical solutions, preferably, a connection port is provided on the shell, and the connection port is connected to the pressure sensing circuit.

[0023] Compared with the prior art, the advantages of the fire extinguisher digital controller provided by the present invention are:

[0024] 1. Real-time monitoring: The fire extinguisher digital controller can monitor the key parameters of the fire extinguisher such as pressure, temperature, tilt angle, etc. in real time to achieve comprehensive control of the fire extinguisher status.

[0025] 2. Reduce maintenance workload: Dynamically adjust the inspection cycle through monitoring data to avoid unnecessary maintenance and reduce daily workload and costs.

[0026] 3. Improve safety and reliability: Real-time monitoring and alarm functions can help staff detect potential problems and deal with them in time, ensuring the availability and reliability of fire extinguishers in emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 The structure diagram of the digital controller of the fire extinguisher involved in the embodiment of the present invention is shown;

[0029] Figure 2 A structural block diagram of a control component involved in an embodiment of the present invention is shown;

[0030] Figure 3 A circuit diagram showing the connection between the data processing chip, the power supply unit and the analog circuit involved in the embodiment of the present invention is shown;

[0031] Figure 4 A circuit diagram of a reference voltage unit according to an embodiment of the present invention is shown;

[0032] Figure 5 A circuit diagram of a voltage reduction unit according to an embodiment of the present invention is shown;

[0033] Figure 6 A circuit diagram of a reset unit according to an embodiment of the present invention is shown;

[0034] Figure 7 A circuit diagram of a pressure sensing circuit according to an embodiment of the present invention is shown;

[0035] Figure 8 A circuit diagram of a tilt sensing circuit according to an embodiment of the present invention is shown;

[0036] Fig. 9 A circuit diagram of a temperature sensing circuit according to an embodiment of the present invention is shown;

[0037] Fig.10 A circuit diagram of a download interface according to an embodiment of the present invention is shown;

[0038] Fig.11A circuit diagram of a USB to serial port circuit according to an embodiment of the present invention is shown;

[0039] Fig.12 A circuit diagram of a Type-C interface circuit according to an embodiment of the present invention is shown; DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] like Figures 1 to 12 As shown, according to an embodiment of the present invention, a digital controller for a fire extinguisher includes a shell 1 and a control component arranged in the shell 1, wherein the control component includes a power supply circuit, a pressure sensing circuit, a temperature sensing circuit, a tilt sensing circuit, and a data processing chip U1 electrically connected to the power supply circuit respectively; the data processing chip U1 and a mobile inspection terminal communicatively connected to the data processing chip U1 through a transmission circuit, the detection data collected by the pressure sensing circuit, the temperature sensing circuit and the tilt sensing circuit are uniformly processed by the data processing chip U1 and then transmitted to the mobile inspection terminal by the transmission circuit, the mobile inspection terminal makes a logical judgment based on the received detection data, and when the fire extinguisher is in an abnormal state, the system will automatically alarm and notify the staff to conduct inspection and maintenance.

[0043] It should be noted that the mobile inspection terminal has a pre-set threshold for judging the abnormal state of the fire extinguisher, and the operator can customize the threshold in the background. When the monitoring data of the fire extinguisher exceeds the threshold, the fire extinguisher state is abnormal.

[0044] In this embodiment, the pressure sensing circuit is used to measure the pressure of the fire extinguisher and send the data to the inspection terminal. The data collected by the pressure sensing circuit is an analog signal, which is converted into AD (digital to analog) by a transmitter, and then the converted digital signal is transmitted to the inspection terminal. When it is detected that the pressure of the fire extinguisher is lower than the preset value, the system can send an alarm signal; the tilt sensing circuit is used to monitor the tilt angle of the fire extinguisher in real time to ensure that the fire extinguisher is in a normal placement state. If an abnormal tilt is found, the system can automatically alarm to remind the staff to adjust the position; the temperature sensing circuit is used to detect the temperature of the medium inside the fire extinguisher and the battery power of the controller to ensure the stable operation of the system. When the temperature or battery power exceeds the normal range, it can automatically remind you to handle it.

[0045] The mobile inspection terminal is mainly used for displaying data, logical judgment and other application expansion. The inspection terminal can make logical judgments based on the received detection data. When the fire extinguisher is in an abnormal state, the system will automatically alarm and notify the staff to conduct inspection and maintenance; Communication module: NB-IoT COAP protocol and LoRaWan protocol are used to realize wireless data transmission and remote monitoring. This module supports uploading monitoring data to the cloud platform for centralized management and analysis.

[0046] The controller structure is designed with full consideration of the diversity of fire extinguishers, and is suitable for the application of different types of fire extinguishers such as gas fire extinguishers, dry powder fire extinguishers, water-based fire extinguishers and high-pressure gas cylinders.

[0047] like Figures 3 to 6 As shown, in the above embodiment, preferably, the power supply circuit includes a power supply unit, a reference voltage unit, a step-down unit, and a reset unit, and the power supply unit is at least composed of capacitors C11 and C113 connected in parallel with the LED1 and the resistor R70 connected in series, and the power supply unit is connected to the Vcc / AVcc terminal and the Gnd / AGnd terminal of the data processing chip U1;

[0048] The reference voltage unit includes a voltage chip U8, a capacitor C116, and a voltage chip U9, wherein the capacitor C116 is connected in parallel with the voltage chip U8 and then grounded, the voltage chip U9 is connected to the R terminal of the voltage chip U8, the K terminal of the voltage chip U8 is connected to the REF terminal of the data processing chip U1, and the voltage chip U9 is connected to the P1.1 terminal of the data processing chip U1;

[0049] The buck unit includes a buck chip U2 and capacitors C105-C108, wherein the capacitor C105 and the capacitor C106 are connected in parallel and connected to the VIN terminal of the buck chip U2, and the capacitor C107 and the capacitor C108 are connected in parallel and connected to the VOUT terminal of the buck chip U2;

[0050] The reset unit includes a capacitor C109, a resistor R71 and a switch SW2. The switch SW2 is connected to the capacitor C109 in parallel and then connected to the resistor R71 to control the on / off of the capacitor C109.

[0051] like Figure 7 As shown, in any of the above embodiments, preferably, the pressure sensing circuit is a pressure sensor H1, pin 2 of the pressure sensor H1 is connected to the P1.6 terminal of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the P1.7 terminal of the data processing chip U1.

[0052] like Figure 8 As shown, in any of the above embodiments, preferably, the tilt sensing circuit is a tilt sensor H3, pin 2 of the pressure sensor H1 is connected to the CH340_TX end of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the CH340_RX end of the data processing chip U1.

[0053] like Fig. 9 As shown, in any of the above embodiments, preferably, the temperature sensing circuit includes a temperature sensing chip U33 and a resistor R80, the two ends of the resistor R are respectively connected to the DQ end and the VDD end of the temperature sensing chip U33 and then grounded, and the DQ end of the temperature sensing chip U33 is connected to the P1.2 end of the data processing chip U1.

[0054] like Fig.10 As shown, in any of the above embodiments, preferably, it also includes a download interface J4, pin 1 of the download interface J4 is connected to the CH340_TX end of the data processing chip U1, pin 2 of the download interface J4 is connected to the CH340_RX end of the data processing chip U1, and the communication circuit is a wireless communication module H2.

[0055] like Fig.11 As shown, in any of the above embodiments, preferably, it also includes a USB-to-serial port circuit composed of at least a USB-to-serial port chip U3, a capacitor C103 and a capacitor C104, the capacitor C103 is connected to the VCC terminal of the USB-to-serial port chip U3 and then grounded, the capacitor C104 is connected to the V3 terminal of the USB-to-serial port chip U3 and then grounded, the RXD terminal of the USB-to-serial port chip U3 is connected to the CH340_RX terminal of the data processing chip U1, and the TXD terminal of the USB-to-serial port chip U3 is connected to the CH340_TX terminal of the data processing chip U1.

[0056] like Fig.12As shown, in any of the above embodiments, preferably, it also includes a Type-C interface circuit consisting of at least a Type-C interface chip USB2, a resistor R68 and a resistor R69, wherein the resistor R68 is connected to the CC2 end of the Type-C interface chip USB2, and the resistor R69 is connected to the CC1 end of the Type-C interface chip USB2.

[0057] like Figure 3 As shown, in any of the above embodiments, preferably, it also includes an analog circuit consisting of at least a capacitor C1 and a diode D1, and the capacitor C1 and the diode D1 are connected in parallel and connected to the P1.0 terminal of the data processing chip U1.

[0058] like Figure 2 As shown, in any of the above embodiments, preferably, a connection port 2 is provided on the housing 1, and the connection port 2 is connected to the pressure sensing circuit.

[0059] In this embodiment, the connection port is connected to the pressure sensor H1.

[0060] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A digital controller for a fire extinguisher, comprising a housing and a control component arranged in the housing, characterized in that: The control component includes a power supply circuit, a pressure sensing circuit, a temperature sensing circuit, a tilt sensing circuit, a data processing chip U1, which are electrically connected to the power supply circuit respectively, and a mobile inspection terminal which is communicatively connected to the data processing chip U1 through a transmission circuit. The detection data collected by the pressure sensing circuit, the temperature sensing circuit and the tilt sensing circuit are uniformly processed by the data processing chip U1 and transmitted to the mobile inspection terminal by the transmission circuit. The mobile inspection terminal makes a logical judgment based on the received detection data. When the fire extinguisher is in an abnormal state, the system will automatically alarm and notify the staff to conduct inspection and maintenance.

2. The digital controller for fire extinguisher according to claim 1, characterized in that: The power supply circuit includes a power supply unit, a reference voltage unit, a voltage reduction unit, and a reset unit. The power supply unit is at least composed of capacitors C11 and C113 connected in parallel with the LED1 and the resistor R70 connected in series. The power supply unit is connected to the Vcc / AVcc terminal and the Gnd / AGnd terminal of the data processing chip U1. The reference voltage unit includes a voltage chip U8, a capacitor C116, and a voltage chip U9, wherein the capacitor C116 is connected in parallel with the voltage chip U8 and then grounded, the voltage chip U9 is connected to the R terminal of the voltage chip U8, the K terminal of the voltage chip U8 is connected to the REF terminal of the data processing chip U1, and the voltage chip U9 is connected to the P1.1 terminal of the data processing chip U1; The buck unit includes a buck chip U2 and capacitors C105-C108, wherein the capacitor C105 and the capacitor C106 are connected in parallel and connected to the VIN terminal of the buck chip U2, and the capacitor C107 and the capacitor C108 are connected in parallel and connected to the VOUT terminal of the buck chip U2; The reset unit includes a capacitor C109, a resistor R71 and a switch SW2. The switch SW2 is connected to the capacitor C109 in parallel and then connected to the resistor R71 to control the on / off of the capacitor C109.

3. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: The pressure sensing circuit is a pressure sensor H1, pin 2 of the pressure sensor H1 is connected to the P1.6 terminal of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the P1.7 terminal of the data processing chip U1.

4. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: The tilt sensing circuit is a tilt sensor H3, pin 2 of the pressure sensor H1 is connected to the CH340_TX end of the data processing chip U1, and pin 3 of the pressure sensor H1 is connected to the CH340_RX end of the data processing chip U1.

5. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: The temperature sensing circuit includes a temperature sensing chip U33 and a resistor R80. The two ends of the resistor R are respectively connected to the DQ end and the VDD end of the temperature sensing chip U33 and then grounded. The DQ end of the temperature sensing chip U33 is connected to the P1.2 end of the data processing chip U1.

6. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: It also includes a download interface J4, wherein pin 1 of the download interface J4 is connected to the CH340_TX end of the data processing chip U1, and pin 2 of the download interface J4 is connected to the CH340_RX end of the data processing chip U1, and the communication circuit is a wireless communication module H2.

7. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: It also includes a USB-to-serial port circuit consisting of at least a USB-to-serial port chip U3, a capacitor C103 and a capacitor C104, wherein the capacitor C103 is connected to the VCC terminal of the USB-to-serial port chip U3 and then grounded, the capacitor C104 is connected to the V3 terminal of the USB-to-serial port chip U3 and then grounded, the RXD terminal of the USB-to-serial port chip U3 is connected to the CH340_RX terminal of the data processing chip U1, and the TXD terminal of the USB-to-serial port chip U3 is connected to the CH340_TX terminal of the data processing chip U1.

8. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: It also includes a Type-C interface circuit consisting of at least a Type-C interface chip USB2, a resistor R68 and a resistor R69, wherein the resistor R68 is connected to the CC2 end of the Type-C interface chip USB2, and the resistor R69 is connected to the CC1 end of the Type-C interface chip USB2.

9. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: It also includes an analog circuit composed of at least a capacitor C1 and a diode D1. The capacitor C1 and the diode D1 are connected in parallel and then connected to the P1.0 terminal of the data processing chip U1.

10. The digital controller for fire extinguisher according to claim 1 or 2, characterized in that: The shell is provided with a connection port, and the connection port is connected to the pressure sensing circuit.

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