CN114383651A - Monitoring device and monitoring method - Google Patents
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Abstract
The present application relates to a monitoring device and a monitoring method. The device is applied to a fire extinguishing agent storage device, wherein a liquid fire extinguishing agent is stored in the fire extinguishing agent storage device and is used for releasing the liquid fire extinguishing agent when the ambient temperature exceeds a first temperature threshold; the temperature detection module is used for detecting the ambient temperature and sending out a first detection signal when the ambient temperature exceeds a second temperature threshold; the controller is connected with the temperature detection module; the pressure detection module is connected with the controller, arranged in the fire extinguishing agent storage device and used for detecting a pressure value in the fire extinguishing agent storage device and sending the pressure value in the fire extinguishing agent storage device to the controller; the controller is also used for determining whether the pressure value in the fire extinguishing agent storage device is lower than a pressure threshold value, and if the pressure value in the fire extinguishing agent storage device is lower than the pressure threshold value, an alarm signal is sent out through the communication module. Therefore, whether open fire occurs or not can be judged sensitively and accurately, an alarm is given out in time, and the monitoring accuracy and safety are improved.
Description
Technical Field
The application relates to the technical field of fire fighting equipment, in particular to a monitoring device and a monitoring method.
Background
With the development of power system technology, urban power systems are more and more complex, and are distributed in various places of cities as key devices for ensuring normal operation of the urban power systems, such as cable channels, distribution boxes, ring main units, storage battery packs and the like. However, because of a large number of electrical connection points in the equipment, a fire easily occurs due to electric leakage, overload or process quality, and the like, and the self-starting fire extinguisher can be started when the fire occurs. Therefore, how to automatically monitor whether the self-starting fire extinguisher is started without manual inspection is a problem to be solved at present.
In the conventional technology, a temperature sensor is arranged at each device of a power system, and whether a fire disaster occurs or not is judged by monitoring the temperature of the environment, so that whether an alarm signal needs to be sent or not is determined.
However, since the current at each equipment of the actual power system is not stable, when the power consumption of the city is large, the temperature at each equipment of the power system is also increased due to the short-term load current, so as to trigger a fire alarm, but a fire does not occur actually. Therefore, the mode using the conventional technology is easy to generate the phenomenon of false alarm.
Disclosure of Invention
Accordingly, in order to solve the above technical problems, it is necessary to provide a monitoring device and a monitoring method capable of avoiding false alarm caused by temperature rise, thereby improving alarm accuracy.
A monitoring device for use in a fire suppressant storage device having stored therein a liquid fire suppressant for release thereof when the ambient temperature exceeds a first temperature threshold; the device comprises a temperature detection module, a pressure detection module, a controller and a communication module, wherein,
the temperature detection module is used for detecting the ambient temperature and sending out a first detection signal when the ambient temperature exceeds a second temperature threshold, wherein the first temperature threshold is higher than the second temperature threshold;
the controller is connected with the temperature detection module and used for sending a first control signal after receiving the first detection signal;
the pressure detection module is connected with the controller, arranged in the fire extinguishing agent storage device and used for detecting a pressure value in the fire extinguishing agent storage device after receiving the first control signal and sending the pressure value in the fire extinguishing agent storage device to the controller;
the controller is further used for determining whether the pressure value in the fire extinguishing agent storage device is lower than a pressure threshold value, and if the pressure value in the fire extinguishing agent storage device is lower than the pressure threshold value, sending a second control signal;
and the communication module is connected with the controller and used for sending out an alarm signal after receiving the second control signal.
In one embodiment, the apparatus further comprises: and the power supply module is connected with the temperature detection module and used for supplying power to the temperature detection module when the ambient temperature exceeds the second temperature threshold value.
In one embodiment, the controller is further configured to stop sending the first control signal to the pressure detection module after receiving the pressure value sent by the pressure detection module, and control the pressure detection module to stop detecting the pressure in the fire extinguishing agent storage device.
In one embodiment, the controller is further configured to enter a sleep state if a pressure value within the fire suppressant storage device is above a pressure threshold.
In one embodiment, the communication module is further configured to enter a sleep state after the alarm signal is issued.
In one embodiment, the communication module is further configured to send a feedback signal to the controller between sending the alarm signal and entering the sleep state; the controller is further configured to enter a sleep state after receiving the feedback signal.
In one embodiment, the temperature detection module comprises a self-recovery temperature control switch and a circuit protection device, the self-recovery temperature control switch is connected with the power supply module, and the circuit protection device is connected with the self-recovery temperature control switch; the self-recovery temperature control switch is used for being closed when the ambient temperature exceeds the second temperature threshold value and being opened when the ambient temperature is lower than the second temperature threshold value; the circuit protection device is used for restraining spike voltage.
In one embodiment, the pressure detection module includes a pressure sensor coupled to the controller and the circuit protection device.
In one embodiment, the communication module comprises a communication chip, and the communication chip is connected with the controller and the self-recovery temperature control switch.
A monitoring method for use with a fire suppressant storage device having a liquid fire suppressant stored therein for release when the ambient temperature exceeds a first temperature threshold, the method comprising:
acquiring an ambient temperature;
if the ambient temperature exceeds a second temperature threshold, acquiring a pressure value in the fire extinguishing agent storage device, wherein the first temperature threshold is higher than the second temperature threshold;
and if the pressure value in the fire extinguishing agent storage device is lower than the pressure threshold value, sending an alarm signal.
The monitoring device and the monitoring method are applied to a fire extinguishing agent storage device, and the fire extinguishing agent storage device stores liquid fire extinguishing agent and is used for releasing the liquid fire extinguishing agent when the ambient temperature exceeds a first temperature threshold. The environment temperature is detected through the temperature detection module, and a first detection signal is sent out when the environment temperature exceeds a second temperature threshold value, so that whether a fire disaster occurs or not can be judged in a temperature monitoring mode. Detect the pressure value in the fire extinguishing agent storage device through the pressure detection module of installing in the fire extinguishing agent storage device, thereby can real time monitoring fire extinguishing agent storage device in the pressure value, thereby can judge whether the fire extinguishing agent has been released away through the pressure value, because when taking place the conflagration, the conflagration is less to the pressure influence of environment, so monitor whether the conflagration takes place for the unable sensitive affirmation of pressure of whole environment, and detect whether the fire extinguishing agent is released in the monitoring that pressure in the fire extinguishing agent storage device just can be sensitive, thereby whether the conflagration takes place for indirect monitoring. Come according to the pressure in ambient temperature and the fire extinguishing agent storage device through the controller, whether comprehensive judgement has taken place the conflagration, can improve the accurate judgement to whether the extinguishing device starts to whether to carry out accurate judgement to having naked light. Through setting up communication module, can confirm that extinguishing device starts at the controller, when confirming promptly that open fire conflagration has taken place, can send alarm signal and inform the staff in time to handle. Therefore, whether open fire occurs or not can be judged sensitively and accurately, workers are informed to process the open fire in time, and the monitoring accuracy and the environmental safety are improved.
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In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the monitoring device in one embodiment;
FIG. 2 is a circuit diagram of a monitoring device in one embodiment;
FIG. 3 is a flow diagram of a monitoring method in one embodiment.
Description of reference numerals: 10-a fire extinguishing agent storage device, 20-a temperature detection module, 30-a pressure detection module, 40-a controller, 50-a communication module and 60-a power supply module.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
As described in the background art, the prior art method of determining whether an open fire has occurred and determining whether a fire extinguishing apparatus is activated has a problem in that false alarms are easily generated. The inventor researches and finds that the problem is caused by that in the prior art, the temperature of the environment is monitored by a temperature sensor, whether a fire disaster occurs or not is judged according to the environment temperature, and because the current at each device of the actual power system is unstable, when the electricity consumption of a city is large, the temperature of each device of the power system is increased due to the short-time load current, so that a fire disaster alarm is triggered, but the fire disaster does not occur actually.
Based on the reasons, the invention provides the monitoring device and the monitoring method which can avoid false alarm caused by temperature rise so as to improve the alarm accuracy.
In one embodiment, as shown in fig. 1, a monitoring device is provided for use with a fire suppressant storage device 10, the fire suppressant storage device 10 storing a liquid fire suppressant for release of the liquid fire suppressant when the ambient temperature exceeds a first temperature threshold; the device comprises a temperature detection module 20, a pressure detection module 30, a controller 40 and a communication module 50, wherein,
the temperature detection module 20 is configured to detect an ambient temperature and send a first detection signal when the ambient temperature exceeds a second temperature threshold, where the first temperature threshold is higher than the second temperature threshold.
And the controller 40 is connected with the temperature detection module 20 and is used for sending out a first control signal after receiving the first detection signal.
And the pressure detection module 30 is connected with the controller 40, is arranged in the fire extinguishing agent storage device 10, and is used for detecting the pressure value in the fire extinguishing agent storage device 10 after receiving the first control signal, and sending the pressure value in the fire extinguishing agent storage device 10 to the controller 40.
The controller 40 is further configured to determine whether the pressure value in the fire-extinguishing agent storage device 10 is below a pressure threshold value, and to issue a second control signal if the pressure value in the fire-extinguishing agent storage device 10 is below the pressure threshold value.
And the communication module 50 is connected with the controller 40 and is used for sending out an alarm signal after receiving the second control signal.
In this embodiment, the ambient temperature is detected by the temperature detection module, and the first detection signal is sent out when the ambient temperature exceeds the second temperature threshold, so that whether a fire disaster occurs or not can be judged by monitoring the temperature. Detect the pressure value in the fire extinguishing agent storage device through the pressure detection module of installing in the fire extinguishing agent storage device, thereby can real time monitoring fire extinguishing agent storage device in the pressure value, thereby can judge whether the fire extinguishing agent has been released away through the pressure value, because when taking place the conflagration, the conflagration is less to the pressure influence of environment, so monitor whether the conflagration takes place for the unable sensitive affirmation of pressure of whole environment, and detect whether the fire extinguishing agent is released in the monitoring that pressure in the fire extinguishing agent storage device just can be sensitive, thereby whether the conflagration takes place for indirect monitoring. Come according to the pressure in ambient temperature and the fire extinguishing agent storage device through the controller, whether comprehensive judgement has taken place the conflagration, can improve the accurate judgement to whether the extinguishing device starts to whether to carry out accurate judgement to having naked light. Through setting up communication module, can confirm that extinguishing device starts at the controller, when confirming promptly that open fire conflagration has taken place, can send alarm signal and inform the staff in time to handle. Therefore, whether open fire occurs or not can be judged sensitively and accurately, workers are informed to process the open fire in time, and the monitoring accuracy and the environmental safety are improved.
In one embodiment, the monitoring device further includes a power module 60.
And the power supply module 60 is connected with the temperature detection module 20 and is used for supplying power to the temperature detection module 20 when the ambient temperature exceeds the second temperature threshold.
In this embodiment, through setting up power module, can supply power for temperature detection module to will supply power through temperature detection module and transmit to other parts of monitoring devices, thereby realize supplying power to each part of monitoring devices.
In one embodiment, the controller 40 is further configured to stop sending the first control signal to the pressure detection module 30 after receiving the pressure value sent by the pressure detection module 30, and control the pressure detection module 30 to stop detecting the pressure in the fire extinguishing agent storage device 10.
In this embodiment, after receiving the pressure value sent by the pressure detection module, the controller controls the pressure detection module to stop detecting the pressure in the fire extinguishing agent storage device, so that unnecessary electric energy consumption caused by the fact that the pressure detection device always detects the pressure is avoided, and the consumption of the electric energy is reduced.
In one embodiment, the controller 40 is further configured to enter a sleep state if the pressure value within the fire suppressant storage device 10 is above a pressure threshold.
In this embodiment, when the controller receives a signal from the temperature detection module and starts to operate, if the pressure value detected by the pressure detection module is higher than the pressure threshold, it represents that the temperature of the environment reaches the threshold, but no open fire occurs, and the fire extinguishing agent storage device does not release the fire extinguishing agent, thus representing a false alarm. Therefore, the controller does not need to work continuously at the moment, and enters a dormant state to save electric energy.
In one embodiment, the communication module 50 is further configured to enter a sleep state after the alarm signal is issued.
In this embodiment, after the communication module sends the alarm signal, the communication module already notifies the staff that there is an open fire, and at this time, the communication module does not need to continue to work, so that the communication module enters a sleep state to save electric energy.
In one embodiment, the communication module 50 is further configured to send a feedback signal to the controller 40 between sending the alarm signal and entering the sleep state.
The controller 40 is further configured to enter a sleep state upon receiving the feedback signal.
In this embodiment, before entering the sleep state, the communication module sends a signal to the controller to prompt the controller that the whole alarm process is finished and the alarm signal is sent, so that the communication module does not need to continue working. Therefore, the controller also enters the dormant state after receiving the signal to save the electric energy.
In one embodiment, the temperature detection module 20 includes a self-recovery temperature controlled switch connected to the power module 60 and a circuit protection device connected to the self-recovery temperature controlled switch.
And the self-recovery temperature control switch is used for being switched on when the ambient temperature exceeds a second temperature threshold value and being switched off when the ambient temperature is lower than the second temperature threshold value.
Illustratively, a self-restoring temperature controlled switch is composed of two layers of alloys having different coefficients of thermal expansion.
And the circuit protection device is used for inhibiting the spike voltage.
The pressure detection module 30 includes a pressure sensor that is connected to the controller 40 and the circuit protection device.
The communication module 50 includes a communication chip, which is connected to the controller 40 and the self-recovery temperature control switch.
Illustratively, as shown in fig. 2, a circuit diagram of a monitoring device is provided, which includes a battery BTR, a self-recovery temperature control switch T _ SW1, a bipolar Transient Voltage suppression protection tube transmission Voltage super) D1, a capacitor C2, a high-precision pressure sensor S1, a resistor R4, a controller chip STM32L010F4P6, a communication chip LSD4RF-2F717N30, and an antenna E1. The negative pole of the battery BTR is connected with the first end of D1, the first end of C2 and the pin 3 of the high-precision pressure sensor S1 and grounded, the positive pole of the battery BTR is connected with the first end of the self-recovery temperature control switch, the second end of the self-recovery temperature control switch is connected with the second end of D1, the second end of C2 and the pin 5 of the controller chip and connected with a power supply in parallel, the pins 1 and 2 of the high-precision pressure sensor S1 are respectively connected with the pins 6 and 8 of the controller chip, the first end of the resistor R4 is grounded, the second end of the resistor R4 is connected with the pin 1 of the controller chip, and the pins 9, 10, 17 and 16 of the controller chip, 14. pins 13 and 12 of the communication chip are connected to pins 12, 11, 1, 8, 2, 10 and 9, respectively, pin 16 of the controller chip is connected to the power supply, pin 15 of the controller chip is grounded, pins 7 and 13 of the communication chip are grounded, and pin 14 of the communication chip is connected to antenna E1 and grounded.
In this embodiment, a specific circuit of the monitoring device is provided, so that the function of the monitoring device can be realized.
In one embodiment, as shown in fig. 3, there is provided a monitoring method for use with a fire suppressant storage device having stored therein a liquid fire suppressant for release of the liquid fire suppressant when an ambient temperature exceeds a first temperature threshold, the method comprising:
step S100, acquiring the ambient temperature.
And step S120, if the ambient temperature exceeds a second temperature threshold, acquiring a pressure value in the fire extinguishing agent storage device, wherein the first temperature threshold is higher than the second temperature threshold.
And step S140, if the pressure value in the fire extinguishing agent storage device is lower than the pressure threshold value, sending an alarm signal.
In this embodiment, whether a fire is likely to occur is determined by acquiring the ambient temperature, whether an open fire is likely to occur is determined by detecting the pressure value, and an alarm is issued only when the open fire is determined to occur. Therefore, whether open fire occurs or not can be judged sensitively and accurately, workers are informed to process the open fire in time, and the monitoring accuracy and the environmental safety are improved.
It should be understood that, although the steps in the flowchart of fig. 3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A monitoring device, characterized in that the device is applied to a fire extinguishing agent storage device (10), a liquid fire extinguishing agent being stored in the fire extinguishing agent storage device (10) for releasing the liquid fire extinguishing agent when the ambient temperature exceeds a first temperature threshold; the device comprises a temperature detection module (20), a pressure detection module (30), a controller (40) and a communication module (50), wherein,
the temperature detection module (20) is used for detecting the ambient temperature and sending out a first detection signal when the ambient temperature exceeds a second temperature threshold, and the first temperature threshold is higher than the second temperature threshold;
the controller (40) is connected with the temperature detection module (20) and is used for sending a first control signal after receiving the first detection signal;
the pressure detection module (30) is connected with the controller (40), arranged in the fire extinguishing agent storage device (10), and used for detecting a pressure value in the fire extinguishing agent storage device (10) after receiving the first control signal and sending the pressure value in the fire extinguishing agent storage device (10) to the controller (40);
the controller (40) is further configured to determine whether a pressure value in the fire suppressant storage device (10) is below a pressure threshold, and to issue a second control signal if the pressure value in the fire suppressant storage device (10) is below the pressure threshold;
and the communication module (50) is connected with the controller (40) and is used for sending out an alarm signal after receiving the second control signal.
2. The apparatus of claim 1, further comprising:
and the power supply module (60) is connected with the temperature detection module (20) and is used for supplying power to the temperature detection module (20) when the ambient temperature exceeds the second temperature threshold value.
3. The device according to claim 1, wherein the controller (40) is further configured to stop sending the first control signal to the pressure detection module (30) after receiving the pressure value sent by the pressure detection module (30), and control the pressure detection module (30) to stop detecting the pressure in the fire extinguishing agent storage device (10).
4. The device of claim 1, wherein the controller (40) is further configured to enter a sleep state if a pressure value within the fire suppressant storage device (10) is above a pressure threshold.
5. The device according to any of claims 1-4, wherein the communication module (50) is further configured to enter a sleep state after issuing the alarm signal.
6. The apparatus of claim 5, wherein said communication module (50) is further configured to send a feedback signal to said controller (40) between sending said alarm signal and entering a sleep state;
the controller (40) is further configured to enter a sleep state upon receiving the feedback signal.
7. The device according to any one of claims 1 to 4, characterized in that the temperature detection module (20) comprises a self-restoring temperature-controlled switch, connected to the power supply module (60), and a circuit protection device connected to the self-restoring temperature-controlled switch;
the self-recovery temperature control switch is used for being closed when the ambient temperature exceeds the second temperature threshold value and being opened when the ambient temperature is lower than the second temperature threshold value;
the circuit protection device is used for restraining spike voltage.
8. The apparatus of claim 8, wherein the pressure detection module (30) includes a pressure sensor connected to the controller (40) and the circuit protection device.
9. The device according to claim 9, characterized in that the communication module (50) comprises a communication chip connected with the controller (40) and the self-healing temperature controlled switch.
10. A method of monitoring, wherein the method is applied to a fire suppressant storage device having stored therein a liquid fire suppressant for release when the ambient temperature exceeds a first temperature threshold, the method comprising:
acquiring an ambient temperature;
if the ambient temperature exceeds a second temperature threshold, acquiring a pressure value in the fire extinguishing agent storage device, wherein the first temperature threshold is higher than the second temperature threshold;
and if the pressure value in the fire extinguishing agent storage device is lower than the pressure threshold value, sending an alarm signal.
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