CN114495409B - Smoke sensor sensitivity compensation method, device, system and storage medium - Google Patents
Smoke sensor sensitivity compensation method, device, system and storage medium Download PDFInfo
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- CN114495409B CN114495409B CN202111565993.3A CN202111565993A CN114495409B CN 114495409 B CN114495409 B CN 114495409B CN 202111565993 A CN202111565993 A CN 202111565993A CN 114495409 B CN114495409 B CN 114495409B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
- G08B29/26—Self-calibration, e.g. compensating for environmental drift or ageing of components by updating and storing reference thresholds
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Abstract
The invention relates to a smoke sensor sensitivity compensation method, a device, a system and a storage medium, which are used for judging whether a smoke sensor is in a smokeless environment or not by acquiring an output sampling value in real time, and when the smoke sensor is in the smokeless environment, if the output sampling value is larger than an operation background value, the operation background value is adjusted to obtain a new operation background value; the technical problems that in the prior art, the output sampling value of the detector becomes larger due to dust pollution of the detector maze, so that the smoke detector becomes excessively sensitive gradually, and when the output sampling value reaches a smoke alarm threshold value, the detector can generate false alarm are solved; the dynamic adjustment of the sensitivity of the smoke sensor is realized, and the measurement precision and the application range of the smoke sensor are greatly improved.
Description
Technical Field
The present invention relates to the field of smoke detection technologies, and in particular, to a method, an apparatus, a system, and a storage medium for compensating sensitivity of a smoke sensor.
Background
The smoke alarm can be divided into an ion smoke alarm, a photoelectric smoke alarm and the like from the angle of a used sensor, wherein an optical labyrinth is arranged in the photoelectric smoke alarm, and the optical labyrinth consists of a transmitting tube, a receiving tube and a labyrinth chamber. The labyrinth chamber structure is composed of relatively complex light reflection, refraction surfaces or ribs, and after the smoke enters the special structural cavity, the smoke concentration can be reflected. When no smoke exists, the infrared receiving tube cannot receive infrared light emitted by the infrared emitting tube, when smoke dust enters the optical maze, the infrared light is received by the receiving tube through refraction and reflection, the intelligent alarm circuit judges whether the collected smoke concentration exceeds an alarm threshold value, and if so, an alarm is given.
However, after a period of operation, the smoke detector based on the photoelectric principle usually increases the output sampling value of the detector due to dust pollution of the detector maze, if the smoke detector is not processed, the smoke detector becomes too sensitive gradually, and when the output sampling value reaches the smoke alarm threshold, the detector will generate false alarm.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a smoke sensor sensitivity compensation method, apparatus, system, and storage medium that can perform sensitivity compensation adjustment in real time.
An embodiment of the present invention provides a method for compensating sensitivity of a smoke sensor, the method comprising:
acquiring an output sampling value in real time;
judging whether the smoke sensor is in a smokeless environment;
And when the smoke sensor is in the smokeless environment, if the output sampling value is larger than the operation background value, adjusting the operation background value to obtain a new operation background value.
In one embodiment, if the output sampling value is greater than the operation background value, adjusting the operation background value to obtain a new operation background value, including:
Calculating the difference value between the output sampling value obtained each time and the operation background value;
Summing the difference values obtained by each calculation to obtain an accumulated value;
and when the accumulated value is larger than a preset value, adjusting the operation background value to obtain a new operation background value.
In one embodiment, when the accumulated value is greater than a predetermined value, the adjusting the operation background value to obtain a new operation background value includes:
when the accumulated value is larger than a preset value, increasing the operation background value by a preset step length, and updating the operation background value to a value after the preset step length is increased;
Obtaining a difference value between a current output sampling value and an updated operation background value;
If the difference value between the current output sampling value and the updated running background value is larger than the preset step length, continuing to execute the steps of increasing the running background value by the preset step length and updating the running background value to be the value after the preset step length is increased;
And if the difference value between the current output sampling value and the updated operation background value is smaller than or equal to the preset step length, stopping adjusting the operation background value, and taking the updated operation background value as a new operation background value.
In one embodiment, the determining whether the smoke sensor is in a smokeless environment comprises:
Judging whether the output sampling value acquired in a preset time period is smaller than an operation alarm value or not;
If yes, judging that the smoke sensor is in the smokeless environment;
if not, judging that the smoke sensor is in a smoke environment.
In one embodiment, the magnitude of the operational alarm value is the sum of the operational background value and an alarm reference value.
In one embodiment, the method further comprises:
and when the output sampling value is greater than or equal to the operation alarm value, an alarm is sent out.
In one embodiment, the acquired output sample value is used as an initial operating background value when the smoke sensor is first activated.
An embodiment of the present invention provides a smoke sensor sensitivity compensation apparatus, the apparatus comprising:
The sampling module is used for acquiring an output sampling value in real time;
the environment judging module is used for judging whether the smoke sensor is in a smokeless environment or not;
and the adjusting module is used for adjusting the operation background value to obtain a new operation background value if the output sampling value is larger than the operation background value when the smoke sensor is in the smokeless environment.
An embodiment of the present invention provides a computer-readable storage medium having stored thereon computer instructions,
The instructions, when executed by the processor, implement the steps of the smoke sensor sensitivity compensation method described above.
An embodiment of the present invention provides a smoke sensor sensitivity compensation system, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the smoke sensor sensitivity compensation method described above when executing the program.
According to the smoke sensor sensitivity compensation method, device and system and the storage medium, whether the smoke sensor is in a smokeless environment is judged by acquiring the output sampling value in real time, and when the smoke sensor is in the smokeless environment, if the output sampling value is larger than the operation background value, the operation background value is adjusted to obtain a new operation background value; the technical problems that in the prior art, the output sampling value of the detector becomes larger due to dust pollution of the detector maze, so that the smoke detector becomes excessively sensitive gradually, and when the output sampling value reaches a smoke alarm threshold value, the detector can generate false alarm are solved; the dynamic adjustment of the sensitivity of the smoke sensor is realized, and the measurement precision and the application range of the smoke sensor are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present invention, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a flow chart of a method of smoke sensor sensitivity compensation in accordance with one embodiment of the present invention;
FIG. 2 is a flow chart of a method for compensating sensitivity of a smoke sensor according to another embodiment of the invention;
FIG. 3 is a flow chart of a method of smoke sensor sensitivity compensation according to yet another embodiment of the invention;
FIG. 4 is a flow chart of a method of smoke sensor sensitivity compensation according to yet another embodiment of the invention;
FIG. 5 is a schematic diagram of a smoke sensor sensitivity compensation apparatus according to an embodiment of the present invention;
fig. 6 is a hardware schematic of a smoke sensor sensitivity compensation system according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Smoke sensors are commonly used to detect the concentration of smoke in an environment to determine if the environment is at risk of fire, which is desirable to ensure that the smoke sensor is able to accurately detect the concentration of smoke in the environment. In the actual use process, the use scene of the smoke sensor cannot be determined, namely the smoke sensor can be arranged in a clean and tidy dust-free workshop or in a place with more dust. If the smoke sensor is arranged in a place with more dust or the service time of the smoke sensor is too long, dust particles in the environment can enter a labyrinth of the smoke sensor, so that the detection result of the smoke sensor is affected, the detection result is too high, and false alarm of the smoke sensor is caused. In order to solve the problems, embodiments of the present invention provide a method, an apparatus, a system, and a storage medium for compensating sensitivity of a smoke sensor, so that the smoke sensor can be applied to various scenes, and the service time of the smoke sensor is prolonged, and the application range of the smoke sensor is also improved while the detection precision of the smoke sensor is improved.
Example 1
Referring to fig. 1, an embodiment of the present invention provides a method for compensating sensitivity of a smoke sensor, the method including:
S100, obtaining an output sampling value in real time.
The smoke sensor acquires an output sampling value in real time, the output sampling value is used for indicating the smoke concentration detected by the smoke sensor, and the smoke sensor determines the smoke concentration of the current environment according to the output sampling value. Theoretically, for a completely new smoke sensor that has just been put into use, there is no dust in the smoke sensor's maze, and the output sample value obtained will be a relatively low value, even 0. However, when dust enters the labyrinth of the smoke sensor, the output sampling value obtained by the smoke sensor is raised, the dust in the labyrinth is used as the dust in the environment, and if more dust is accumulated, the smoke sensor can alarm even if no smoke exists in the environment. The magnitude of the output sample value thus determines whether the smoke sensor is alarming.
In the embodiment of the invention, the smoke sensor can acquire the output sampling value in real time, or acquire the output sampling value at regular intervals, for example, every 1s, and the invention is not limited herein.
S200, judging whether the smoke sensor is in a smokeless environment.
In embodiments of the present invention, the sensitivity compensation of the smoke sensor needs to be performed in a smokeless environment to ensure the accuracy of the sensitivity compensation. If the smoke sensor is used in a smoke environment, the magnitude of an output sampling value obtained by the smoke sensor can be influenced by smoke with a certain concentration, so that an inaccurate compensation result is caused. In addition, the output sampling value is large in the case of smoke, and sensitivity compensation cannot be performed.
Referring to fig. 2 in combination, in an embodiment of the present invention, step S200 includes:
s210, judging whether the output sampling value acquired in the preset time period is smaller than the operation alarm value.
Because the smoke sensor acquires the output sampling value in real time, if the acquired output sampling value is smaller than the operation alarm value in a preset time period, the smoke concentration in the environment is low, and the smoke sensor is in a smokeless environment. The operation alarm value is used for limiting the upper limit of an output sampling value acquired by the smoke sensor under normal conditions, and when the output sampling value acquired by the smoke sensor is larger than the operation alarm value, the current smoke concentration is too high, and the smoke sensor is in a smoke environment. The predetermined time period may be set according to actual requirements, which is not limited in the present invention.
And S220, if yes, judging that the smoke sensor is in the smokeless environment.
And S230, if not, the smoke breaking sensor is in a smoke environment.
And S300, when the smoke sensor is in the smokeless environment, if the output sampling value is larger than the operation background value, adjusting the operation background value to obtain a new operation background value.
When the smoke sensor is in a smokeless environment, the smoke sensor can perform sensitivity compensation to avoid the influence of dust in the smoke sensor maze on the detection result of the smoke sensor. In the embodiment of the invention, an operation background value can be set, and the operation background value is used for compensating the influence of external factors on the sensor. For a completely new smoke sensor, no dust exists in the maze, and the detection result of the smoke sensor is theoretically 0 in a smokeless environment. However, due to the error of the circuit or the influence of dust particles in the maze, the output sampling value acquired by the brand new smoke sensor is not zero, and if the alarm is still carried out according to the operation alarm value, false alarm can be caused. For example, the smoke sensor sets the operation alarm value to 50, and theoretically, the range of output sampling values obtained by the smoke sensor should be 0-50, and the alarm is given when the output sampling values increase to 50. In some cases, dust or other causes within the smoke sensor labyrinth result in an output sample value of 30 in a smokeless environment, and not 0; if the alarm is given by the operation alarm value of 50, the output sampling value is increased by 20, and no thick smoke is generated at the moment, so that the false alarm of the smoke sensor is caused.
In order to solve the problem of false alarm of the smoke sensor caused by the fact that the smoke sensor acquires an increased output sampling value in a smokeless environment due to external factors such as dust entering the smoke sensor labyrinth, the smoke sensor can be solved by adjusting an operation background value and correspondingly adjusting an operation alarm value by combining the operation background value. For example, the output sampling value is set to 0 in a smokeless environment, and the operation alarm value is set to 50. And the output sampling value is 30 under the smokeless environment due to external reasons, the operation background value is 30, and the corresponding operation alarm value is increased by 30, so that the value is changed into 80, and false alarm is avoided.
In practical use, the magnitude of the operational alarm value is typically set to the sum of the operational background value and the alarm reference value. The alarm reference value is an increase upper limit of an output sampling value set according to actual demands, and if the output sampling value exceeds the upper limit, the smoke concentration is excessively large, so that the risk of fire is caused. For example, setting an alarm reference value as 50, when the operation background value is 0, operating the alarm value as 50, and alarming when the output sampling value reaches 50; if the operation background value is 30, the operation alarm value is 80, and the alarm is given when the output sampling value reaches 80.
In the embodiment of the invention, when the smoke sensor is in a smokeless environment, if the output sampling value is larger than the operation background value, the dust in the maze of the smoke sensor is increased, so that the output reference value acquired in the smokeless environment is enlarged, and if the operation background value and the operation alarm value are not adjusted, the smoke sensor is misreported. Therefore, if the output sampling value is larger than the operation background value, the operation background value is adjusted to obtain a new operation background value, and the old operation background value is replaced by the new operation background value.
Referring to fig. 3 in combination, in one embodiment, step S300 includes:
S310, calculating the difference value between the output sampling value obtained each time and the operation background value.
After the output sampling value is larger than the operation background value, the dust in the maze is increased, and the operation background value needs to be adjusted. At this time, the smoke sensor still acquires the output sampling value in real time, and performs subtraction with the current operation background value after acquiring the output sampling value, so as to obtain a difference value between the output sampling value acquired each time and the operation background value.
And S320, summing the difference values obtained by calculation each time to obtain an accumulated value.
The smoke sensor sums the difference values obtained by each calculation to obtain an accumulated value. The accumulated value is used to define the frequency of adjustment of the operating background value.
S330, when the accumulated value is larger than a preset value, the operation background value is adjusted, and a new operation background value is obtained.
And when the accumulated value is larger than a preset value, the smoke sensor adjusts the operation background value to obtain a new operation background value. In the embodiment of the invention, the accumulated value is used for limiting the adjustment frequency of the operation background value, so that the preset value is not suitable to be too small, and the accumulated value can reach the preset value quickly due to the too small set value, so that the compensation is too fast, and when the actual smoke occurs, the sensitivity of the smoke detector is reduced due to the too fast compensation. The preset value can be set according to actual requirements, and is not limited by the fact that the preset value is not too small.
Specifically, referring to fig. 4, in the embodiment of the present invention, step S330 includes:
And S331, when the accumulated value is larger than a preset value, increasing the operation background value by a preset step length, and updating the operation background value to be a value after the preset step length is increased.
According to the embodiment of the invention, the operation background value is adjusted by adding the preset step length, so that the adjustment of the operation background value is more accurate.
S332, obtaining the difference value between the current output sampling value and the updated operation background value.
In the process, the smoke sensor acquires an output sampling value in real time, and the first output sampling value after the updated operation background value is obtained and the updated operation background value are subjected to difference.
S333, judging whether the difference value between the current output sampling value and the updated operation background value is larger than a preset step length. If yes, repeating steps S331 to S333; if not, go to step S334.
In the embodiment of the invention, the output sampling value obtained each time may be different, and the operation background value needs to be close to the output sampling value in the smokeless environment as much as possible. Then, by calculating the difference between the current output sampling value and the updated operation background value, it can be judged whether the adjusted operation background value is appropriate. In order to realize accurate adjustment of the operation background value, the preset step length can be set to be relatively smaller, so that the operation background value can be ensured to be slowly increased, the finally obtained difference value is smaller than the smaller preset step length, the finally obtained operation background value can be ensured to be very close to the output sampling value, and the finally obtained detection result is more accurate.
S334, stopping the adjustment of the operation background value, and taking the updated operation background value as a new operation background value.
In the embodiment of the invention, the operation background value is continuously updated with the amplitude of a preset step length until the difference between the updated operation background value and the output sampling value is smaller than the preset step length, and the compensation is stopped. At this time, the running background value basically follows the change of the output sampling value, and the error is smaller than a preset step length, so that the drift compensation of the sensitivity of the smoke detector is realized. The preset step length can be set according to actual requirements, and the invention is not limited herein.
For example, the current operating background value is 40, the output sample value stabilizes at 50, the operating background value is updated with 3 as a preset step until it stops when it increases to an operating background value of 49, and 49 is determined as the final operating background value.
Further, in the embodiment of the invention, when the output sampling value is greater than or equal to the operation alarm value, an alarm is sent out to prompt that the fire risk exists.
It should be noted that, for a completely new smoke sensor, the smoke sensor does not have an operation background value stored therein, which requires active acquisition of the operation background value after the smoke sensor is operated. In one embodiment, when the smoke sensor is first activated, an output sample value is obtained, and the obtained output sample value is used as an initial operating background value. Alternatively, an average value of a plurality of output sampling values obtained within a period of time during startup may be used as the running background value.
In addition, in the embodiment of the invention, after the operation background value is updated, the operation alarm value is required to be correspondingly updated, and the adjustment amplitude of the operation alarm value is the same as that of the operation background value.
In summary, according to the method for compensating the sensitivity of the smoke sensor provided by the invention, the output sampling value is obtained in real time, so as to judge whether the smoke sensor is in a smokeless environment, and when the smoke sensor is in the smokeless environment, if the output sampling value is greater than the operation background value, the operation background value is adjusted, so that a new operation background value is obtained; the technical problems that in the prior art, the output sampling value of the detector becomes larger due to dust pollution of the detector maze, so that the smoke detector becomes excessively sensitive gradually, and when the output sampling value reaches a smoke alarm threshold value, the detector can generate false alarm are solved; the dynamic adjustment of the sensitivity of the smoke sensor is realized, and the measurement precision and the application range of the smoke sensor are greatly improved.
Example two
Referring to fig. 5, an embodiment of the present invention provides a smoke sensor sensitivity compensation apparatus, which includes: the system comprises a sampling module 10, an environment judging module 20 and an adjusting module 30.
The sampling module 10 is used for acquiring an output sampling value in real time;
An environment determination module 20 for determining whether the smoke sensor is in a smokeless environment;
The adjusting module 30 is configured to adjust the operation background value to obtain a new operation background value if the output sampling value is greater than the operation background value when the smoke sensor is in the smokeless environment.
In one embodiment, the adjustment module 30 is configured to: calculating the difference value between the output sampling value obtained each time and the operation background value; summing the difference values obtained by each calculation to obtain an accumulated value; and when the accumulated value is larger than a preset value, adjusting the operation background value to obtain a new operation background value.
In one embodiment, the adjustment module 30 is configured to: when the accumulated value is larger than a preset value, increasing the operation background value by a preset step length, and updating the operation background value to be a value after the preset step length is increased; obtaining a difference value between a current output sampling value and an updated operation background value; if the difference value between the current output sampling value and the updated operation background value is larger than a preset step length, continuing to execute the steps of increasing the operation background value by the preset step length and updating the operation background value to be the value after the preset step length is increased; if the difference value between the current output sampling value and the updated operation background value is smaller than or equal to the preset step length, the adjustment of the operation background value is stopped, and the updated operation background value is used as a new operation background value.
In one embodiment, the environment determination module 20 is configured to:
Judging whether the output sampling value obtained in a preset time period is smaller than an operation alarm value or not; if yes, judging that the smoke sensor is in a smokeless environment; if not, judging that the smoke sensor is in a smoke environment.
In one embodiment, the magnitude of the operational alarm value is the sum of the operational background value and the alarm reference value.
In one embodiment, the apparatus further comprises: an alarm module (not shown) for sending out an alarm when the output sampling value is greater than or equal to the operation alarm value.
In one embodiment, the adjustment module 30 is configured to take the acquired output sample value as the initial operation background value when the smoke sensor is first activated.
Example III
An embodiment of the present invention provides a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of embodiment one. The storage medium also has information stored thereon. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a hard disk (HARD DISK DRIVE, abbreviated as HDD), a Solid state disk (Solid-STATE DRIVE, SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It will be appreciated by those skilled in the art that implementing all or part of the above-described methods in the embodiments may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the steps of the embodiments of the above-described methods when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
Example IV
The present embodiment provides a smoke sensor sensitivity compensation system, as shown in fig. 6, including a memory 620, a processor 610, and a computer program stored in the memory 620 and executable on the processor 610, wherein the processor 610 implements the steps of the method of the first embodiment when executing the program.
Fig. 6 is a schematic diagram of a hardware structure of a smoke sensor sensitivity compensation system for performing the smoke sensor sensitivity compensation method according to an embodiment of the present invention, as shown in fig. 6, where the system includes one or more processors 610 and a memory 620, and one processor 610 is illustrated in fig. 6.
The system for performing the smoke sensor sensitivity compensation method may further include: an input device 630 and an output device 640.
The processor 610, memory 620, input devices 630, and output devices 640 may be connected by a bus or other means, for example in fig. 6.
The processor 610 may be a central processing unit (Central Processing Unit, CPU). The Processor 610 may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application SPECIFIC INTEGRATED Circuits (ASICs), field-Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means 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, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A method of smoke sensor sensitivity compensation, the method comprising:
acquiring an output sampling value in real time;
judging whether the smoke sensor is in a smokeless environment;
When the smoke sensor is in the smokeless environment, if the output sampling value is larger than an operation background value, calculating a difference value between the output sampling value obtained each time and the operation background value;
Summing the difference values obtained by each calculation to obtain an accumulated value;
when the accumulated value is larger than a preset value, increasing the operation background value by a preset step length, and updating the operation background value to a value after the preset step length is increased;
Obtaining a difference value between a current output sampling value and an updated operation background value;
If the difference value between the current output sampling value and the updated running background value is larger than the preset step length, continuing to execute the steps of increasing the running background value by the preset step length and updating the running background value to be the value after the preset step length is increased;
And if the difference value between the current output sampling value and the updated operation background value is smaller than or equal to the preset step length, stopping adjusting the operation background value, and taking the updated operation background value as a new operation background value.
2. The smoke sensor sensitivity compensation method of claim 1 wherein said determining whether the smoke sensor is in a smokeless environment comprises:
Judging whether the output sampling value acquired in a preset time period is smaller than an operation alarm value or not;
If yes, judging that the smoke sensor is in the smokeless environment;
if not, judging that the smoke sensor is in a smoke environment.
3. The smoke sensor sensitivity compensation method of claim 2 wherein the magnitude of said operational alarm value is the sum of said operational background value and an alarm reference value.
4. The smoke sensor sensitivity compensation method according to claim 1, wherein said method further comprises:
and when the output sampling value is greater than or equal to the operation alarm value, an alarm is sent out.
5. The smoke sensor sensitivity compensation method according to claim 1, wherein the obtained output sample value is taken as an initial operation background value when the smoke sensor is started for the first time.
6. A smoke sensor sensitivity compensation device, the device comprising:
The sampling module is used for acquiring an output sampling value in real time;
the environment judging module is used for judging whether the smoke sensor is in a smokeless environment or not;
The adjusting module is used for calculating the difference value between the output sampling value obtained each time and the operation background value if the output sampling value is larger than the operation background value when the smoke sensor is in the smokeless environment; summing the difference values obtained by each calculation to obtain an accumulated value; when the accumulated value is larger than a preset value, increasing the operation background value by a preset step length, and updating the operation background value to a value after the preset step length is increased; obtaining a difference value between a current output sampling value and an updated operation background value; if the difference value between the current output sampling value and the updated running background value is larger than the preset step length, continuing to execute the steps of increasing the running background value by the preset step length and updating the running background value to be the value after the preset step length is increased; and if the difference value between the current output sampling value and the updated operation background value is smaller than or equal to the preset step length, stopping adjusting the operation background value, and taking the updated operation background value as a new operation background value.
7. A computer-readable storage medium having stored thereon computer instructions, characterized in that,
The instructions, when executed by a processor, implement the steps of the smoke sensor sensitivity compensation method of any one of claims 1-5.
8. A smoke sensor sensitivity compensation system comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that,
The processor, when executing the program, implements the steps of the smoke sensor sensitivity compensation method of any one of claims 1-5.
Priority Applications (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096978A (en) * | 2009-12-10 | 2011-06-15 | 能美防灾株式会社 | Photoelectric smoke sensor |
| CN109285313A (en) * | 2018-08-27 | 2019-01-29 | 广东九联科技股份有限公司 | A kind of the sensor auto-correction method and system of smoke alarm |
| CN113538837A (en) * | 2021-07-08 | 2021-10-22 | 深圳市豪恩安全科技有限公司 | Photoelectric smoke detection method, photoelectric smoke detection device and computer readable storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3015704B2 (en) * | 1995-03-16 | 2000-03-06 | ホーチキ株式会社 | Correction method for smoke detector |
| JP3113937B2 (en) * | 1995-10-12 | 2000-12-04 | 松下電工株式会社 | Method of setting reference concentration of smoke detector and method of detecting contamination of smoke detector |
| DE102004004098B3 (en) * | 2004-01-27 | 2005-09-01 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method for evaluating a scattered light signal and scattered light detector for carrying out the method |
| US8766807B2 (en) * | 2008-10-03 | 2014-07-01 | Universal Security Instruments, Inc. | Dynamic alarm sensitivity adjustment and auto-calibrating smoke detection |
| US9396637B2 (en) * | 2012-07-13 | 2016-07-19 | Walter Kidde Portable Equipment, Inc | Photoelectric smoke detector with drift compensation |
| EP3489921B1 (en) * | 2017-11-24 | 2020-01-01 | Siemens Schweiz AG | Method and device for configuring a smoke detector |
| CN108053602A (en) * | 2017-12-19 | 2018-05-18 | 深圳市泛海三江电子股份有限公司 | A kind of pollution prediction method of optical detector of fire smoke and its pollution prediction system |
| JP7033980B2 (en) * | 2018-03-28 | 2022-03-11 | 能美防災株式会社 | Smoke detector and smoke detection system |
| CN109448304B (en) * | 2018-12-18 | 2021-05-28 | 上海贝岭股份有限公司 | Method and system for calibrating threshold value of smoke alarm |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096978A (en) * | 2009-12-10 | 2011-06-15 | 能美防灾株式会社 | Photoelectric smoke sensor |
| CN109285313A (en) * | 2018-08-27 | 2019-01-29 | 广东九联科技股份有限公司 | A kind of the sensor auto-correction method and system of smoke alarm |
| CN113538837A (en) * | 2021-07-08 | 2021-10-22 | 深圳市豪恩安全科技有限公司 | Photoelectric smoke detection method, photoelectric smoke detection device and computer readable storage medium |
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