Multi-sensor joint verification system and method for fire extinguishing system

Abstract

The invention belongs to the technical field of fire-fighting sensors, and particularly relates to a multi-sensor joint verification system and method for a fire-fighting system. The system comprises a fire scene simulation device, a fault switching device and an upper computer. The method comprises the following steps: constructing a multi-sensor joint verification platform of the fire fighting system; the fire-fighting monitoring host monitors an analysis result of the type and the position of the fire-fighting scene event; the fire-fighting monitoring man-machine interaction device is used for displaying fire-fighting simulation scene events and over-limit alarm signals in a grading manner; setting a cut-off fault signal and / or an interference fault signal of the fire-fighting sensor through a fault switching device, and carrying out test analysis based on a grading display result; and comparing, analyzing and judging whether the graded display result is matched with the cut-off fault signal and / or the interference fault signal, and if so, passing verification. According to the invention, the fault handling capability of the fire-fighting system can be detected, so that the reliability and convenience of the fire-fighting system are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire protection sensors, and in particular relates to a multi-sensor joint calibration system and method for a fire protection system. Background Art

[0002] Fire protection systems are critical for protecting the safety of people and property, playing a vital role in production and daily life. As power equipment increasingly moves toward unmanned management, fire safety issues within these systems warrant even greater attention. Power fire protection systems utilize a variety of sensors to monitor abnormal conditions. Because power equipment often operates in harsh and complex environments, and because maintenance personnel perform regular maintenance only at long intervals, inaccuracies are inevitable. Therefore, testing and calibration of sensors within fire protection systems are essential.

[0003] Existing sensor calibration devices typically test and calibrate sensors individually, requiring individual sensors to be placed in relevant calibration equipment for processing. However, today's fire protection systems utilize a multi-sensor collaborative monitoring mechanism, and currently lack a technology that can efficiently and conveniently perform joint calibration of these multiple sensors. Furthermore, existing sensor calibration systems fail to account for the impact of sensor failures. In practice, electrical equipment can generate sensor fault signals due to vibration, high temperatures, and electromagnetic interference. Therefore, it is necessary to test the fire protection system's monitoring capabilities in the event of partial sensor failure.

[0004] In the existing technology, fire monitoring methods based on machine learning models usually rely on the accuracy of the data source. However, the environment of power equipment is complex and harsh, and sensors are prone to failure. When the sensor fails, the input data judged by the model is unreliable, so the accuracy of fire monitoring is low.

[0005] In the prior art, invention patent application CN115346330A proposes a fire smoke sensor calibration device, comprising an annular flue, the annular flue consisting of an inner annular shell and an outer annular shell, secured between the inner and outer annular shells by multiple guide grilles. A central controller controls the smoke generator's smoke emission rate, with smoke generated by the smoke generator entering the annular flue through a smoke inlet. Air then enters the annular flue through an air intake assembly, filling the entire annular flue with the help of a circulating air assembly. A smoke exhaust port and exhaust assembly are provided on the inner annular shell. An optical densitometer is installed in the annular flue to detect real-time smoke concentration. A test object mounting plate is provided above the annular flue, corresponding to an observation window, for mounting and fixing the fire smoke sensor. The optical densitometer is connected to the central controller via a cable, and the fire smoke sensor is connected to the central controller via wiring terminals below the mounting plate. However, this invention does not address the problem of multi-sensor joint calibration, nor does it consider sensor failure during the calibration process. Summary of the Invention

[0006] In view of the above shortcomings in the prior art, the present invention provides a multi-sensor joint calibration system and method for a fire protection system. The purpose is to achieve the purpose of the invention.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0008] A multi-sensor joint calibration system for a fire protection system includes a fire protection scenario simulation device, a fault switching device, and a host computer; wherein the fire protection scenario simulation device is connected to the fire protection system under test, the fault switching device is in communication connection with the fire protection system under test, and the fire protection system under test is in communication connection with the host computer;

[0009] Fire scene simulation device, used to set up fault switching devices in different locations to communicate with each fire sensor, simulate different types of fire scene events, monitor the analysis results of the type and location of fire scene events, and display the fire simulation scene events and over-limit alarm signals in a hierarchical manner;

[0010] The fault switching device is in communication with the fire sensors and is used to set and switch the fault signals of each fire sensor. The fire monitoring host generates analysis results based on the over-limit alarm signals generated by the fire sensors and performs test analysis based on the graded display results.

[0011] The host computer is used to determine whether the graded display results match the fault signal through comparative analysis. If they match, it determines whether the tested fire protection system has passed the sensor joint verification.

[0012] Furthermore, the fire protection system under test includes: a fire protection sensor, a fire protection monitoring host and a fire protection monitoring human-computer interaction device; wherein the fire protection sensor is communicatively connected to the fire protection monitoring host, and the fire protection monitoring host is communicatively connected to the fire protection monitoring human-computer interaction device;

[0013] The fire protection sensors include: temperature sensors, smoke sensors and light sensors;

[0014] The fire monitoring host includes: a high temperature event analysis module, a smoke event analysis module and an open fire event analysis module. The fire monitoring host is used to monitor fire sensors and analyze and determine the type and location of fire scene events;

[0015] The fire monitoring human-computer interaction device includes: a first display module and a second display module; the first display module is used to display the main event corresponding to the over-limit alarm signal in the first area of ​​the main interface when n is less than or equal to the first quantity threshold, and display the plane position coordinates of the sensor that generates the over-limit alarm signal in the second area of ​​the main interface; the second display module is used to display the type and location of the fire scenario event on the main interface when n is greater than the first quantity threshold; and display the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scenario event on the secondary interface.

[0016] Furthermore, the high temperature event analysis module: determines the type of the high temperature event and the estimated location of the high temperature event according to the alarm threshold, monitoring value and plane position coordinates of the temperature sensor;

[0017] The smoke event analysis module determines the type of smoke event and the estimated location of the smoke event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor and the plane coordinate position of the smoke sensor;

[0018] The open fire event analysis module determines the type of open fire event and the estimated position of the open fire event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor, the plane coordinate position of the light sensor, and the plane coordinate position of the smoke sensor.

[0019] Furthermore, the fault switching device includes: multiple input ports, output ports, a first electrically controlled switch, a second electrically controlled switch and an interference signal source; wherein each input port is respectively connected to a first electrically controlled switch, and each first electrically controlled switch connected to an input port is also respectively connected to an output port; and the interference signal source is connected to the output port through the second electrically controlled switch; the fault signal includes: a cut-off fault signal and / or an interference fault signal.

[0020] A multi-sensor joint calibration method for a fire protection system, comprising:

[0021] Build a multi-sensor joint verification platform for fire protection systems;

[0022] The fire monitoring host monitors the analysis results of the type and location of fire scenario events generated by the over-limit alarm signals generated by the fire sensors;

[0023] The fire monitoring human-computer interaction device displays fire simulation scenario events and over-limit alarm signals in a graded manner based on the analysis results;

[0024] Setting the fire sensor's cut-off fault signal and / or interference fault signal through the fault switching device, and conducting test analysis based on the hierarchical display results;

[0025] Comparative analysis is performed to determine whether the graded display results match the cut-off fault signal and / or interference fault signal. If they match, multi-sensor joint verification is performed.

[0026] Furthermore, the multi-sensor joint verification platform for building a fire protection system includes: arranging fire scenario simulation devices at different locations in the fire monitoring environment, and providing a fault switching device that is communicatively connected to each sensor;

[0027] The fire scene simulation device is activated, and a preset fire simulation scene and simulation location are selected to simulate a high temperature event, a smoke event and / or an open flame event. The fire scene simulation device is a device for simulating fire events, and it simulates a high temperature event by arranging heating devices at different locations, simulating a smoke event by arranging smoke devices, and simulating an open flame event by arranging fire devices at different locations.

[0028] The fire monitoring host monitors the fire sensor's over-limit alarm signal, generating a result of analyzing the type and location of a fire scenario event. The fire simulation scenario device selects a preset fire simulation scenario, and the sensors in the fire protection system monitor a high temperature event, a smoke event, and / or an open flame event to generate an over-limit alarm signal. The over-limit alarm signal is sent to the fire monitoring host for analyzing the over-limit alarm signal and the type and location of the fire scenario event.

[0029] The comparative analysis determines whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, a multi-sensor joint verification is performed, including: determining whether the type and location of the fire scene event and / or main event displayed by the fire monitoring human-computer interaction device match the fire simulation scene and simulation location simulated by the fire scene simulation device. If they match, the joint verification is passed, otherwise the joint verification is not passed.

[0030] Furthermore, the fire monitoring host monitors the analysis results of the type and location of the fire scenario event generated by the over-limit alarm signal generated by the fire sensor, including:

[0031] S31. The fire monitoring host obtains the sensor device number, alarm threshold, monitoring value, and plane position coordinates corresponding to the over-limit alarm signal;

[0032] S32 fire monitoring host determines the number of sensors n that generate an over-limit alarm signal based on the device number, and determines whether n is greater than the first number threshold. If so, it enters S33, otherwise it enters S4;

[0033] S33 determines the type of sensor that generates the over-limit alarm signal. If it includes only a temperature sensor, proceed to S34. If it includes a light sensor or a smoke sensor, proceed to S35.

[0034] S34. Determine that the fire scenario event is a high temperature event and calculate the estimated location of the high temperature event:

[0035] S35. Determine whether there are both light sensors and smoke sensors that generate an over-limit alarm signal. If not, proceed to S36. If so, determine whether the distance between the light sensor and the smoke sensor is less than the first distance threshold. If so, determine that an open fire event has occurred. Otherwise, proceed to S36.

[0036] S36. Determine the occurrence of independent events, including: independent open flame events or independent smoke events.

[0037] Furthermore, the fire monitoring human-computer interaction device displays fire simulation scenario events and over-limit alarm signals in a hierarchical manner according to the analysis results; including:

[0038] If n is less than or equal to the first quantity threshold, the main event corresponding to the over-limit alarm signal is displayed in the first area of ​​the main interface, where the main event corresponding to the temperature over-limit alarm event is a high temperature event, the main event corresponding to the smoke over-limit alarm event is a smoke event, and the main event corresponding to the light over-limit alarm event is an open flame event; the plane position coordinates of the sensor that generated the over-limit alarm signal are displayed in the second area of ​​the main interface;

[0039] If n is greater than the first quantity threshold, the type and location of the fire scenario event are displayed on the main interface; the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scenario event are displayed on the secondary interface.

[0040] Furthermore, the setting of the cut-off fault signal and / or interference fault signal of the fire sensor by the fault switching device and the test analysis based on the graded display results include:

[0041] S51. Select the main sensor associated with the fire scene event within a first preset distance of the fire scene simulation device as the fault sensor;

[0042] S52. Select an auxiliary sensor associated with a fire scene event within a first preset distance from the location of the fire scene simulation device as a fault sensor;

[0043] S53. Select the main sensor associated with the fire scene event within the second preset distance of the fire scene simulation device as the fault sensor; the second preset distance is greater than the first preset distance;

[0044] S54. Select the auxiliary sensor associated with the fire scene event within a second preset distance from the location of the fire scene simulation device as the fault sensor;

[0045] S55. After each fault sensor is set, return to S3 for testing.

[0046] A multi-sensor joint calibration device for a fire protection system, used to implement any one of the multi-sensor joint calibration methods for a fire protection system, comprising:

[0047] Building modules for constructing a multi-sensor joint verification platform for fire protection systems;

[0048] A monitoring module is used for the fire monitoring host to monitor the analysis results of the type and location of fire scenario events generated by the over-limit alarm signals generated by the fire sensors;

[0049] A hierarchical display module is used for the fire monitoring human-computer interaction device to display fire simulation scenario events and over-limit alarm signals in a hierarchical manner according to the analysis results;

[0050] The test analysis module is used to set the cut-off fault signal and / or interference fault signal of the fire sensor through the fault switching device, and perform test analysis based on the graded display results.

[0051] The comparison and analysis module is used to compare and analyze whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, multi-sensor joint verification is performed.

[0052] Furthermore, the multi-sensor joint verification platform for the fire protection system is constructed, including: arranging fire scenario simulation devices at different locations in the fire monitoring environment, and providing a fault switching device that is communicatively connected to each sensor;

[0053] The fire scene simulation device is activated, and a preset fire simulation scene and simulation location are selected to simulate a high temperature event, a smoke event and / or an open flame event. The fire scene simulation device is a device for simulating fire events, and it simulates a high temperature event by arranging heating devices at different locations, simulating a smoke event by arranging smoke devices, and simulating an open flame event by arranging fire devices at different locations.

[0054] The fire monitoring host monitors the fire sensor's over-limit alarm signal, generating a result of analyzing the type and location of a fire scenario event. The fire simulation scenario device selects a preset fire simulation scenario, and the sensors in the fire protection system monitor a high temperature event, a smoke event, and / or an open flame event to generate an over-limit alarm signal. The over-limit alarm signal is sent to the fire monitoring host for analyzing the over-limit alarm signal and the type and location of the fire scenario event.

[0055] The comparative analysis determines whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, a multi-sensor joint verification is performed, including: determining whether the type and location of the fire scene event and / or main event displayed by the fire monitoring human-computer interaction device match the fire simulation scene and simulation location simulated by the fire scene simulation device. If they match, the joint verification is passed, otherwise the joint verification is not passed.

[0056] A computer device comprises a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein when the processor executes the computer program, the processor implements any one of the steps of a multi-sensor joint calibration method for a fire protection system.

[0057] A computer storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements any one of the steps of a multi-sensor joint calibration method for a fire protection system.

[0058] The present invention has the following beneficial effects and advantages:

[0059] The present invention can realize the joint verification test of multiple sensors of the fire protection system, can test the monitoring function of the fire protection system as a whole, and can determine whether the type and location of the fire incident analyzed by the fire protection system are correct. Compared with the existing single sensor verification device, it is more efficient and convenient.

[0060] The present invention can simulate a variety of firefighting scenarios through the firefighting simulation device, which can be set in different locations to make the test and verification environment closer to reality.

[0061] The present invention provides a fault switching device and communicates with each sensor, and can apply a cut-off fault signal and an interference fault signal to each sensor. Therefore, the present invention can detect the ability of the fire protection system to cope with faults, thereby significantly improving the reliability and convenience of the fire protection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0063] Figure 1It is a schematic diagram of the structure of the verification system of the present invention;

[0064] Figure 2 is a schematic structural diagram of a fault switching device according to an embodiment of the present invention;

[0065] Figure 3 This is a flow chart of a multi-sensor joint calibration method for a fire protection system provided by an embodiment of the present invention.

[0066] In the figure: a first sensor 1, a second sensor 2, a third sensor 3, an nth sensor 4, input ports In1...Inn, output ports Out1...Outn, first electronically controlled switches S11...S11n, and second electronically controlled switches S21...S2n. DETAILED DESCRIPTION

[0067] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0068] 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 scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0069] Refer to the following Figure 1-Figure 3 Describe the technical solutions of some embodiments of the present invention.

[0070] Example 1

[0071] The present invention provides an embodiment, which is a multi-sensor joint calibration system and method for a fire protection system. Figure 1 As shown, Figure 1 : This is a schematic diagram of the structure of a multi-sensor joint verification system for a fire protection system provided by an embodiment of the present invention. The system includes:

[0072] A multi-sensor joint calibration system for a fire protection system, comprising a fire protection system to be tested, a fire protection scenario simulation device, a fault switching device, and a host computer;

[0073] Preferably, the fire protection system under test includes multiple types of fire protection sensors, fire protection monitoring hosts, and fire protection monitoring human-computer interaction devices; the fire protection sensors are communicatively connected to the fire protection monitoring hosts; and the fire protection monitoring hosts are communicatively connected to the fire protection monitoring human-computer interaction devices.

[0074] The fire protection sensors include temperature sensors, smoke sensors, and light sensors;

[0075] The fire monitoring host is used to analyze and determine the type and location of fire scene events based on the number, type and plane coordinate position of the fire sensors that generate the over-limit alarm signal;

[0076] The fire scene simulation device is used to set up a fault switching device in different locations that is in communication with each fire sensor, simulate different types of fire scene events, monitor the analysis results of the type and location of the fire scene events, and display the fire simulation scene events and over-limit alarm signals in a hierarchical manner;

[0077] The fault switching device is communicatively connected to each fire sensor, and is used to set and switch the fault signal of each fire sensor. The fire monitoring host generates an analysis result based on the over-limit alarm signal generated by the fire sensor, and performs test analysis based on the graded display result;

[0078] The fault signal includes a cut-off fault signal and / or an interference fault signal;

[0079] The host computer determines whether the graded display result matches the fault signal through comparative analysis, and if so, determines whether the tested fire protection system passes the multi-sensor joint verification.

[0080] Preferably, the fault switching device includes a plurality of input ports, a plurality of output ports, a plurality of first electrically controlled switches, a plurality of second electrically controlled switches, and an interference signal source;

[0081] Each input port is connected to a first electrically controlled switch, and each first electrically controlled switch connected to an input port is also connected to an output port.

[0082] And the interference signal source is connected to the output port through a plurality of second electrically controlled switches.

[0083] like Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a fault switching device provided by an embodiment of the present invention. In particular, the first sensor 1 is communicatively connected to the fault switching device via the input port In1, which is connected to the first electrically controlled switch S11 and the output port Out1, respectively. The interference signal source is connected to the output port Out1 via the second electrically controlled switch S21. The second sensor 2, the third sensor 3, ..., and the nth sensor 4 are also connected in the same manner. In this way, a cutoff fault signal and an interference fault signal can be introduced through the first and second electrically controlled switches. For example, when both the first and second electrically controlled switches S11 and S21 are disconnected, the signal from the first sensor 1 is a cutoff fault signal; when the first electrically controlled switch S11 is disconnected and the second electrically controlled switch S21 is closed, the signal from the first sensor 1 is an interference fault signal.

[0084] The fire monitoring host includes: a high temperature event analysis module, a smoke event analysis module and an open fire event analysis module; wherein the main event corresponding to the temperature over-limit alarm event is a high temperature event, the main event corresponding to the smoke over-limit alarm event is a smoke event, and the main event corresponding to the light over-limit alarm event is an open fire event;

[0085] The high temperature event analysis module determines the type of high temperature event and the estimated location of the high temperature event based on the alarm threshold, monitoring value and plane position coordinates of the temperature sensor;

[0086] The smoke event analysis module determines the type of smoke event and the estimated location of the smoke event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor and the plane coordinate position of the smoke sensor;

[0087] The open fire event analysis module determines the type of open fire event and the estimated position of the open fire event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor, the plane coordinate position of the light sensor, and the plane coordinate position of the smoke sensor.

[0088] The fire monitoring human-computer interaction device includes: a first display module and a second display module; wherein, the first display module is used to display the main event corresponding to the over-limit alarm signal in the first area of ​​the main interface when n is less than or equal to the first quantity threshold, and display the plane position coordinates of the sensor that generates the over-limit alarm signal in the second area of ​​the main interface; the second display module is used to display the type and location of the fire scenario event on the main interface when n is greater than the first quantity threshold.

[0089] The secondary interface displays the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scenario event.

[0090] Example 2

[0091] The present invention further provides an embodiment, which is a multi-sensor joint calibration method for a fire protection system. Figure 3 As shown, Figure 3 This is a flow chart of a multi-sensor joint calibration method for a fire protection system provided by an embodiment of the present invention.

[0092] A multi-sensor joint calibration method for a fire protection system comprises the following steps:

[0093] S1. Build a multi-sensor joint verification platform for fire protection systems;

[0094] It includes: arranging fire scenario simulation devices at different locations in the fire monitoring environment, and setting up a fault switching device that is communicatively connected to each sensor;

[0095] S2. Start the fire scene simulation device and select the preset fire simulation scene and simulation location;

[0096] The fire simulation scenario device is used to simulate high temperature events, smoke events and / or open fire events;

[0097] Among them, the fire simulation scenario device is a device used to simulate fire incidents. It can simulate high temperature incidents by setting heating devices at different locations, simulate smoke incidents by setting smoke-generating equipment at different locations, and simulate open flame incidents by setting fire devices at different locations.

[0098] S3 fire monitoring host generates an analysis result based on the over-limit alarm signal generated by the fire sensor, the analysis results include the type and location of the fire scenario event;

[0099] Among them, after selecting the preset fire simulation scenario through the fire simulation scenario device, the sensors in the fire protection system will generate an over-limit alarm signal after detecting high temperature events, smoke events and / or open flame events; the over-limit alarm signal will be sent to the fire monitoring host for analyzing the type and location of the over-limit alarm signal and the fire scenario event.

[0100] S31. The fire monitoring host obtains the sensor device number, alarm threshold, monitoring value, and plane position coordinates corresponding to the over-limit alarm signal;

[0101] S32 fire monitoring host determines the number of sensors n that generate an over-limit alarm signal based on the device number, and determines whether n is greater than the first number threshold. If so, it enters S33, otherwise it enters S4;

[0102] S33 determines the type of sensor that generates the over-limit alarm signal. If it includes only a temperature sensor, proceed to S34. If it includes a light sensor or a smoke sensor, proceed to S35.

[0103] S34. Determine that the fire scene event is a high temperature event and calculate the estimated location (x1, y1) of the high temperature event:

[0104] Get the alarm threshold T of the i-th temperature sensor that generates the over-limit alarm signal 0i , monitoring value T i , plane position coordinates (x i ,y i );

[0105]

[0106]

[0107] Where α is the correction coefficient;

[0108] S35. Determine whether there are both light sensors and smoke sensors that generate an over-limit alarm signal. If not, proceed to S36. If so, determine whether the distance between the light sensor and the smoke sensor is less than the first distance threshold. If so, determine that an open fire event has occurred. Otherwise, proceed to S36.

[0109] Calculate the estimated location (x2, y2) of the open fire event;

[0110]

[0111]

[0112] β1+β2+β3=1;

[0113] Among them, (x f ,y f ) is the coordinate of the photosensor, (x m ,y m ) is the smoke sensor coordinate, β1, β2, β3 are weight coefficients;

[0114] In actual applications, both smoke events and open flame events are accompanied by high temperature events, but the dominant event at this time is smoke or open flame, and the importance of smoke and open flame is far higher than that of high temperature events, requiring the staff's special attention; in addition, when open flames are naturally caused by high temperature, burning objects will produce smoke, so in this case, when open flame events occur, smoke events will usually also occur.

[0115] S36. Determine the occurrence of an independent event, wherein the independent event includes an independent fire event or an independent smoke event;

[0116] Calculate the estimated position (x3, y3) of the independent event:

[0117] Including the estimated location of independent fire events (x 31 ,y 31 ) and the estimated location of independent smoke events (x 32 ,y 32 );

[0118]

[0119]

[0120] γ1+γ2=1;

[0121]

[0122]

[0123] ε1+ε2=1;

[0124] Among them, γ1, γ2, ε1, ε2 are weight coefficients;

[0125] In some cases, an open flame incident is caused by someone illegally lighting a fire. In this case, because no rubber products such as cables are burning, no smoke is generated, resulting in an independent open flame incident. In addition, in the early stages of combustion caused by high temperatures, only smoke is generated without an open flame, resulting in an independent smoke incident.

[0126] S4. The fire monitoring human-computer interaction device displays fire simulation scenario events and over-limit alarm signals in a graded manner based on the analysis results; the graded display is a graded display of fire simulation scenario events and over-limit alarm signals of different degrees, which enables monitoring personnel to pay attention to important information more quickly and improve monitoring efficiency.

[0127] S41. If n is less than or equal to the first threshold, the primary event corresponding to the over-limit alarm signal is displayed in the first area of ​​the main interface. The primary event corresponding to the temperature over-limit alarm signal is a high temperature event, the primary event corresponding to the smoke over-limit alarm signal is a smoke event, and the primary event corresponding to the light over-limit alarm signal is a flame event. The planar position coordinates of the sensor that generated the over-limit alarm signal are displayed in the second area of ​​the main interface.

[0128] S42. If n is greater than the first number threshold, the type and location of the fire scene event are displayed on the main interface; the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scene event are displayed on the secondary interface;

[0129] S5. Set the fire sensor fault signal by the fault switching device; the fault signal includes a cut-off fault signal and / or interference fault signal, based on the graded display results, test analysis;

[0130] S51. Select the main sensor associated with the fire scene event within a first preset distance of the fire scene simulation device as the fault sensor;

[0131] Specifically, fire scenario events include high temperature events, smoke events and open fire events; the main sensor associated with high temperature events is a temperature sensor, the main sensor associated with smoke events is a smoke sensor, and the main sensor associated with open fire events is a light sensor.

[0132] S52. Select an auxiliary sensor associated with a fire scene event within a first preset distance from the location of the fire scene simulation device as a fault sensor;

[0133] Specifically, fire scenario events include high temperature events, smoke events, and open fire events; the auxiliary sensors associated with smoke events are temperature sensors, and the auxiliary sensors associated with open fire events are light sensors and temperature sensors.

[0134] S53. Select the main sensor associated with the fire scene event within the second preset distance of the fire scene simulation device as the fault sensor; the second preset distance is greater than the first preset distance;

[0135] S54. Select the auxiliary sensor associated with the fire scene event within a second preset distance from the location of the fire scene simulation device as the fault sensor;

[0136] S55. After each fault sensor is set, return to S3 for testing; after executing the step of setting the fault signal in S5, return to S3 to execute the operation steps and perform test analysis. The analysis result is the test result.

[0137] In response to the problem of low accuracy of fire monitoring in the existing technology, the present invention selectively controls the fault signals of sensor signals to input fault interference into the fire system, and tests whether the fire system can detect fire incidents when individual sensor signals fail. Compared with the existing technology, the accuracy of fire monitoring is significantly improved.

[0138] Moreover, in actual work, the equipment is usually repaired and replaced in a short time after the failure occurs, so the situation of two sensor failures basically does not occur. Therefore, the present invention only sets one single point failure when setting the fault.

[0139] The fault switching device can generate a cut-off fault signal and an interference fault signal; the cut-off fault signal is achieved through an electric control switch, and the interference fault signal is achieved through an interference signal source.

[0140] S6. Determine whether the fire protection system has passed the multi-sensor joint verification through comparative analysis;

[0141] It includes: judging whether the type and position of the fire scenario events and / or main events displayed by the fire monitoring human-computer interaction device match the fire simulation scenario and simulation position simulated by the fire scenario simulation device. If they match, the joint verification is passed; otherwise, the joint verification is not passed.

[0142] Example 3

[0143] The present invention further provides an embodiment of a multi-sensor joint calibration device for a fire protection system, which is used to implement the multi-sensor joint calibration method for a fire protection system described in Example 2, comprising:

[0144] Building modules for constructing a multi-sensor joint verification platform for fire protection systems;

[0145] Monitoring module, used for fire monitoring host to monitor the analysis results of the type and location of fire scenario events generated by the over-limit alarm signal generated by the fire sensor;

[0146] A hierarchical display module is used for the fire monitoring human-computer interaction device to display fire simulation scenario events and over-limit alarm signals in a hierarchical manner according to the analysis results;

[0147] A test and analysis module, configured to set a cut-off fault signal and / or an interference fault signal of a fire sensor through a fault switching device, and perform test analysis based on hierarchical display results;

[0148] The comparison and analysis module is used to compare and analyze whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, multi-sensor joint verification is performed.

[0149] The fault signal of the fire sensor is set by the fault switching device, wherein the fault signal includes a cut-off fault signal and / or an interference fault signal, and a test analysis is performed based on the graded display results;

[0150] S51. Select the main sensor associated with the fire scene event within a first preset distance of the fire scene simulation device as the fault sensor;

[0151] Specifically, fire scenario events include high temperature events, smoke events and open fire events; the main sensor associated with high temperature events is a temperature sensor, the main sensor associated with smoke events is a smoke sensor, and the main sensor associated with open fire events is a light sensor.

[0152] S52. Select an auxiliary sensor associated with a fire scene event within a first preset distance from the location of the fire scene simulation device as a fault sensor;

[0153] Specifically, fire scenario events include high temperature events, smoke events, and open fire events; the auxiliary sensors associated with smoke events are temperature sensors, and the auxiliary sensors associated with open fire events are light sensors and temperature sensors.

[0154] S53. Select the main sensor associated with the fire scene event within the second preset distance of the fire scene simulation device as the fault sensor; the second preset distance is greater than the first preset distance;

[0155] S54. Select the auxiliary sensor associated with the fire scene event within a second preset distance from the location of the fire scene simulation device as the fault sensor;

[0156] S55. After each fault sensor is set, return to S3 for testing; after executing the step of setting the fault signal in S5, return to S3 to execute the operation steps and perform test analysis. The analysis result is the test result.

[0157] Example 4

[0158] Based on the same inventive concept, an embodiment of the present invention further provides a computer device comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor. When the processor executes the computer program, it implements the steps of the multi-sensor joint calibration method for a fire protection system described in Example 2.

[0159] Example 5

[0160] Based on the same inventive concept, an embodiment of the present invention further provides a computer storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of a multi-sensor joint calibration method for a fire protection system described in Example 2 are implemented.

[0161] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0162] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0163] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0164] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A multi-sensor joint calibration system for a fire protection system, characterized by: It includes a fire scene simulation device, a fault switching device and a host computer; wherein the fire scene simulation device is connected to the fire protection system under test, the fault switching device is in communication connection with the fire protection system under test, and the fire protection system under test is in communication connection with the host computer; Fire scene simulation device, used to set up fault switching devices in different locations to communicate with each fire sensor, simulate different types of fire scene events, monitor the analysis results of the type and location of fire scene events, and display the fire simulation scene events and over-limit alarm signals in a hierarchical manner; The fault switching device is in communication with the fire sensors and is used to set and switch the fault signals of each fire sensor. The fire monitoring host generates analysis results based on the over-limit alarm signals generated by the fire sensors and performs test analysis based on the graded display results. The host computer is used to determine whether the graded display results match the fault signal through comparative analysis. If they match, it is determined that the tested fire protection system has passed the multi-sensor joint verification.

2. The multi-sensor joint verification system for a fire protection system according to claim 1, characterized in that: The fire protection system under test includes: a fire protection sensor, a fire protection monitoring host and a fire protection monitoring human-computer interaction device; wherein the fire protection sensor is communicatively connected to the fire protection monitoring host, and the fire protection monitoring host is communicatively connected to the fire protection monitoring human-computer interaction device; The fire protection sensors include: temperature sensors, smoke sensors and light sensors; The fire monitoring host includes: a high temperature event analysis module, a smoke event analysis module and an open fire event analysis module. The fire monitoring host is used to monitor fire sensors and analyze and determine the type and location of fire scene events; The fire monitoring human-computer interaction device includes: a first display module and a second display module; the first display module is used to display the main event corresponding to the over-limit alarm signal in the first area of ​​the main interface when n is less than or equal to the first quantity threshold, and display the plane position coordinates of the sensor that generates the over-limit alarm signal in the second area of ​​the main interface; the second display module is used to display the type and location of the fire scenario event on the main interface when n is greater than the first quantity threshold; and display the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scenario event on the secondary interface.

3. The multi-sensor joint verification system for a fire protection system according to claim 2, characterized in that: The high temperature event analysis module determines the type of high temperature event and the estimated location of the high temperature event based on the alarm threshold, monitoring value and plane position coordinates of the temperature sensor; The smoke event analysis module determines the type of smoke event and the estimated location of the smoke event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor and the plane coordinate position of the smoke sensor; The open fire event analysis module determines the type of open fire event and the estimated position of the open fire event based on the alarm threshold, monitoring value, plane position coordinates of the temperature sensor, the plane coordinate position of the light sensor, and the plane coordinate position of the smoke sensor.

4. The multi-sensor joint verification system for a fire protection system according to claim 1, characterized in that: The fault switching device includes: multiple input ports, output ports, a first electrically controlled switch, a second electrically controlled switch and an interference signal source; wherein each input port is respectively connected to a first electrically controlled switch, and each first electrically controlled switch connected to an input port is also respectively connected to an output port; and the interference signal source is connected to the output port via the second electrically controlled switch; the fault signal includes: a cut-off fault signal and / or an interference fault signal.

5. A multi-sensor joint calibration method for a fire protection system, characterized by: include: Build a multi-sensor joint verification platform for fire protection systems; The fire monitoring host monitors the analysis results of the type and location of fire scenario events generated by the over-limit alarm signals generated by the fire sensors; The fire monitoring human-computer interaction device displays fire simulation scenario events and over-limit alarm signals in a graded manner based on the analysis results; Setting the fire sensor's cut-off fault signal and / or interference fault signal through the fault switching device, and conducting test analysis based on the hierarchical display results; Comparative analysis is performed to determine whether the graded display results match the cut-off fault signal and / or interference fault signal. If they match, multi-sensor joint verification is performed.

6. The multi-sensor joint calibration method for a fire protection system according to claim 5, characterized in that: The multi-sensor joint verification platform for building a fire protection system includes: arranging fire scenario simulation devices at different locations in the fire monitoring environment, and setting up a fault switching device that is communicatively connected to each sensor; The fire scene simulation device is activated, and a preset fire simulation scene and simulation location are selected to simulate a high temperature event, a smoke event and / or an open flame event. The fire scene simulation device is a device for simulating fire events, and it simulates a high temperature event by arranging heating devices at different locations, simulating a smoke event by arranging smoke devices, and simulating an open flame event by arranging fire devices at different locations. The fire monitoring host monitors the fire sensor's over-limit alarm signal, generating a result of analyzing the type and location of a fire scenario event. The fire simulation scenario device selects a preset fire simulation scenario, and the sensors in the fire protection system monitor a high temperature event, a smoke event, and / or an open flame event to generate an over-limit alarm signal. The over-limit alarm signal is sent to the fire monitoring host for analyzing the over-limit alarm signal and the type and location of the fire scenario event. The comparative analysis determines whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, a multi-sensor joint verification is performed, including: determining whether the type and location of the fire scene event and / or main event displayed by the fire monitoring human-computer interaction device match the fire simulation scene and simulation location simulated by the fire scene simulation device. If they match, the joint verification is passed, otherwise the joint verification is not passed.

7. The multi-sensor joint calibration method for a fire protection system according to claim 5, characterized in that: The fire monitoring host monitors the analysis results of the type and location of the fire scenario event generated by the over-limit alarm signal generated by the fire sensor, including: S31. The fire monitoring host obtains the sensor device number, alarm threshold, monitoring value, and plane position coordinates corresponding to the over-limit alarm signal; S32 fire monitoring host determines the number of sensors n that generate an over-limit alarm signal based on the device number, and determines whether n is greater than the first number threshold. If so, it enters S33, otherwise it enters S4; S33 determines the type of sensor that generates the over-limit alarm signal. If it includes only a temperature sensor, proceed to S34. If it includes a light sensor or a smoke sensor, proceed to S35. S34. Determine that the fire scenario event is a high temperature event and calculate the estimated location of the high temperature event: S35. Determine whether there are both light sensors and smoke sensors that generate an over-limit alarm signal. If not, proceed to S36. If so, determine whether the distance between the light sensor and the smoke sensor is less than the first distance threshold. If so, determine that an open fire event has occurred. Otherwise, proceed to S36. S36. Determine the occurrence of independent events, including: independent open flame events or independent smoke events.

8. The multi-sensor joint calibration method for a fire protection system according to claim 5, characterized in that: The fire monitoring human-computer interaction device displays fire simulation scenario events and over-limit alarm signals in a hierarchical manner according to the analysis results; including: If n is less than or equal to the first quantity threshold, the main event corresponding to the over-limit alarm signal is displayed in the first area of ​​the main interface, where the main event corresponding to the temperature over-limit alarm event is a high temperature event, the main event corresponding to the smoke over-limit alarm event is a smoke event, and the main event corresponding to the light over-limit alarm event is an open flame event; the plane position coordinates of the sensor that generated the over-limit alarm signal are displayed in the second area of ​​the main interface; If n is greater than the first quantity threshold, the type and location of the fire scenario event are displayed on the main interface; the alarm threshold, monitoring value, and plane position coordinates of the sensor that generates the over-limit alarm signal associated with the fire scenario event are displayed on the secondary interface.

9. The multi-sensor joint calibration method for a fire protection system according to claim 5, characterized in that: The setting of the fire sensor's cut-off fault signal and / or interference fault signal by the fault switching device, and performing test analysis based on the graded display results, include: S51. Select the main sensor associated with the fire scene event within a first preset distance of the fire scene simulation device as the fault sensor; S52. Select an auxiliary sensor associated with a fire scene event within a first preset distance from the location of the fire scene simulation device as a fault sensor; S53. Select the main sensor associated with the fire scene event within the second preset distance of the fire scene simulation device as the fault sensor; the second preset distance is greater than the first preset distance; S54. Select the auxiliary sensor associated with the fire scene event within a second preset distance from the location of the fire scene simulation device as the fault sensor; S55. After each fault sensor is set, return to S3 for testing.

10. A multi-sensor joint calibration device for a fire protection system, characterized by: A multi-sensor joint calibration method for a fire protection system for implementing any one of claims 5-9, comprising: Building modules for constructing a multi-sensor joint verification platform for fire protection systems; A monitoring module is used for the fire monitoring host to monitor the analysis results of the type and location of fire scenario events generated by the over-limit alarm signals generated by the fire sensors; A hierarchical display module is used for the fire monitoring human-computer interaction device to display fire simulation scenario events and over-limit alarm signals in a hierarchical manner according to the analysis results; A test and analysis module, configured to set a cut-off fault signal and / or an interference fault signal of a fire sensor through a fault switching device, and perform test analysis based on hierarchical display results; The comparison and analysis module is used to compare and analyze whether the graded display results match the cut-off fault signal and / or the interference fault signal. If they match, multi-sensor joint verification is performed.

11. The device according to claim 10, characterized in that: The setting of the fire sensor's cut-off fault signal and / or interference fault signal by the fault switching device, and performing test analysis based on the graded display results, include: S51. Select the main sensor associated with the fire scene event within a first preset distance of the fire scene simulation device as the fault sensor; S52. Select an auxiliary sensor associated with a fire scene event within a first preset distance from the location of the fire scene simulation device as a fault sensor; S53. Select the main sensor associated with the fire scene event within the second preset distance of the fire scene simulation device as the fault sensor; the second preset distance is greater than the first preset distance; S54. Select the auxiliary sensor associated with the fire scene event within a second preset distance from the location of the fire scene simulation device as the fault sensor; S55. After each fault sensor is set, return to S3 for testing.

12. A computer device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, wherein: When the processor executes the computer program, the processor implements the steps of a multi-sensor joint calibration method for a fire protection system as described in any one of claims 5 to 9.

13. A computer storage medium, characterized by: The computer storage medium stores a computer program, which, when executed by a processor, implements the steps of a multi-sensor joint calibration method for a fire protection system as described in any one of claims 5 to 9.

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