CN117580231A - Fault detection system of centralized control type fire emergency lamp - Google Patents
Fault detection system of centralized control type fire emergency lamp Download PDFInfo
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- CN117580231A CN117580231A CN202311533067.7A CN202311533067A CN117580231A CN 117580231 A CN117580231 A CN 117580231A CN 202311533067 A CN202311533067 A CN 202311533067A CN 117580231 A CN117580231 A CN 117580231A
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- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 claims abstract description 47
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000005286 illumination Methods 0.000 claims abstract description 18
- 241001465382 Physalis alkekengi Species 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/28—Circuit arrangements for protecting against abnormal temperature
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a fault detection system of a centralized control type fire emergency lamp, which comprises a fire emergency lamp, a circuit detection module, a temperature monitoring module, an illumination detection module, a microprocessor, a wireless module, a central processing unit and an alarm module, wherein the fire emergency lamp comprises a driving circuit and a lamp, the output end of the driving circuit is electrically connected with the input end of the lamp, the driving circuit is used for providing electric energy for the lamp, and the lamp is used for converting the electric energy into light energy; the input end of the circuit detection module is electrically connected with the output end of the driving circuit. The fault detection system of the centralized control type fire emergency lamp realizes the investigation of various indexes such as abnormal current, abnormal voltage, abnormal resistance, abnormal light source, abnormal temperature and the like of the fire emergency lamp, can facilitate the accurate and rapid judgment of the fault position of a worker, does not need to detach the fire emergency lamp in a large area, effectively lightens the workload and greatly improves the maintenance efficiency of the fire emergency lamp.
Description
Technical Field
The invention relates to the technical field of fire emergency lamps, in particular to a fault detection system of a centralized control type fire emergency lamp.
Background
The fire safety of the building is more and more paid attention at present, the fire protection standard prescribes that the public building with new construction, reconstruction, extension or interior decoration change is necessarily provided with a safety evacuation system, a fire emergency lamp is used as a part of the whole evacuation system, the whole evacuation system can be operated, the fire emergency lamp is related to hospital medical treatment, stadiums, rail subways, high-speed tunnels, hotels, airport stations, market supermarkets and the like, when emergency situations such as fire, earthquake, air defense and the like occur, a normal power supply is powered off or manually powered off due to faults, the fire emergency lamp is used as a safety measure for guaranteeing personal safety and reducing property loss, and if sudden disaster accidents in the building are accompanied by power interruption, the fire emergency lamp is operated normally, and has extremely important roles in personnel evacuation, fire rescue, important production or necessary operation and treatment.
The fault detection of the traditional lamp is realized by a current detection device, when the current flowing through the LED lamp beads is detected to be abnormal, the address of the fault lamp is fed back to a host of a lighting control system through a system bus, the host is processed and then warned, for example, a Chinese patent CN107041043A discloses a fault detection system of a centralized control type fire emergency lamp, the fault detection system comprises a microprocessor chip, an optocoupler chip 1, an optocoupler chip 2 and a fire emergency lamp, the optocoupler chip 1 and the optocoupler chip 2 both comprise a phototube and a light emitting diode, the signal output end of the microprocessor chip is connected with the input end of the optocoupler chip 1, the output end of the optocoupler chip 1 is connected with the input end of the fire emergency lamp, and the signal input end of the microprocessor chip is connected with the output end of the optocoupler chip 2; the detection circuit can effectively eliminate interference, accurately detect lamp faults and is beneficial to the fire emergency lamp controller to make correct treatment in time.
However, due to the singleness of the detection device, the failure except the current of the lamp cannot be detected in time, so that whether the lamp fails or the lamp driving circuit fails cannot be judged accurately, and the failure is not judged accurately, so that large-area disassembly and inspection are needed, the overhaul workload is greatly increased, the failure detection efficiency is low, and the maintenance difficulty is increased, and therefore, the failure detection system of the centralized control type fire emergency lamp is provided to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a fault detection system of a centralized control type fire emergency lamp, which has the advantages of multiple fault detection and the like, and solves the problems that the fault except the current of the lamp cannot be detected in time in the prior art, so that the lamp is inconvenient to judge correctly whether the lamp is faulty or a lamp driving circuit is faulty, and the fault position cannot be accurately judged, so that the fault detection system needs to be detached and checked in a large area, the overhaul workload is greatly increased, the fault detection efficiency is low, and the maintenance difficulty is increased.
In order to achieve the above purpose, the present invention provides the following technical solutions: the fault detection system of the centralized control type fire emergency lamp comprises a fire emergency lamp, a circuit detection module, a temperature monitoring module, an illumination detection module, a microprocessor, a wireless module, a central processing unit and an alarm module,
the fire emergency lamp comprises a driving circuit and a lamp, wherein the output end of the driving circuit is electrically connected with the input end of the lamp, the driving circuit is used for providing electric energy for the lamp, and the lamp is used for converting the electric energy into light energy;
the input end of the circuit detection module is electrically connected with the output end of the driving circuit, the output end of the circuit detection module is electrically connected with the input end of the microprocessor, and the circuit detection module comprises a current acquisition module, a voltage acquisition module and a resistance acquisition module;
the temperature monitoring module comprises a first temperature monitoring module and a second temperature monitoring module, wherein the input end of the first temperature monitoring module is electrically connected with the output end of the lamp, the output end of the first temperature monitoring module is electrically connected with the input end of the microprocessor, the input end of the second temperature monitoring module is electrically connected with the output end of the driving motor, and the output end of the second temperature monitoring module is electrically connected with the input end of the microprocessor;
the input end of the illumination detection module is electrically connected with the output end of the lamp, and the output end of the illumination detection module is electrically connected with the input end of the microprocessor.
Further, the wireless module is in bidirectional electrical connection with the microprocessor, and a receiving module and a transmitting module are arranged between the wireless module and the central processing unit.
Further, the input end of the receiving module is electrically connected with the output end of the wireless module, the output end of the receiving module is electrically connected with the input end of the central processing unit, the input end of the transmitting module is electrically connected with the output end of the central processing unit, and the output end of the transmitting module is electrically connected with the input end of the wireless module.
Further, the input end of the alarm module is electrically connected with the output end of the microprocessor, and the alarm module is a fault indicator lamp and is used for indicating corresponding faults of the fire emergency lamp.
Further, the central processing unit is used for receiving detection data of the microprocessor, and comprises an operation unit, an execution unit, a storage unit, a display module and a key set.
Further, the operation unit is used for executing arithmetic operation and logical operation, the storage unit is used for storing data to be processed and the processed data, the execution unit is used for receiving commands generated after operation to act, the display module is used for displaying required interface information and data in the form of images, and the key set is used for executing manual operation.
Further, the current acquisition module is used for collecting current information in the driving circuit, the voltage acquisition module is used for collecting voltage information in the driving circuit, and the resistance acquisition module is used for collecting resistance information in the driving circuit.
Further, the illumination detection module is used for collecting the light power, the light flux, the light intensity, the illumination and the brightness of the light source generated by the lamp.
Further, the first temperature monitoring module is used for monitoring the temperature of the lamp after the light source is generated in real time, and the second temperature monitoring module is used for monitoring the temperature of the driving circuit in operation in real time.
Further, the first temperature monitoring module and the second temperature monitoring module are both temperature sensors.
Compared with the prior art, the invention provides a fault detection system of a centralized control type fire emergency lamp, which has the following beneficial effects:
this fault detection system of centralized control formula fire control emergency light fitting can gather drive circuit's current information, voltage information and resistance information through the circuit detection module that sets up, can collect the information such as the light power of the produced light source of lamps and lanterns, luminous flux, light intensity, illuminance and luminance through the illumination detection module that sets up, can monitor the temperature when lamps and lanterns produce the light source through the first temperature monitoring module that sets up, can monitor the temperature when drive circuit operates through the second temperature monitoring module that sets up, realized carrying out the investigation of each index such as electric current anomaly, voltage anomaly, resistance anomaly, light source anomaly and temperature anomaly to the fire control emergency light, can make things convenient for the staff to accurately judge out the fault location fast, need not to dismantle the fire control emergency light in a large scale, effectively alleviateed the work load, the maintenance degree of difficulty has been reduced, the maintenance efficiency to the fire control emergency light has been improved greatly.
Drawings
FIG. 1 is a system block diagram of a fault detection system for a centralized control fire emergency light of the present invention.
Fig. 2 is a flow chart of the working principle of the control system of the centralized control type fire emergency lamp.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1, in this embodiment, a fault detection system of a centralized control type fire emergency lamp includes a fire emergency lamp, a circuit detection module, a temperature monitoring module, an illumination detection module, a microprocessor, a wireless module, a central processing unit and an alarm module.
The wireless module is in bidirectional electric connection with the microprocessor, a receiving module and a transmitting module are arranged between the wireless module and the central processing unit, the input end of the receiving module is electrically connected with the output end of the wireless module, the output end of the receiving module is electrically connected with the input end of the central processing unit, the input end of the transmitting module is electrically connected with the output end of the central processing unit, and the output end of the transmitting module is electrically connected with the input end of the wireless module.
It should be noted that, the central processing unit is used for receiving the detection data of the microprocessor, the central processing unit includes an operation unit, an execution unit, a storage unit, a display module and a key set, wherein, the operation unit is used for executing arithmetic operation and logic operation, the storage unit is used for storing the data to be processed and the processed data, the execution unit is used for receiving the command generated after operation to act, the display module is used for displaying the required interface information and data in the form of images, and the key set is used for executing manual operation.
In this embodiment, the central processing unit is an upper processing system, the microprocessor is a lower processing system, where the upper processing system adopts Labview control software, is friendly in computer interface and convenient to operate, and the software can automatically control equipment operation, automatically detect, automatically collect and display test curves and automatically complete tests, and can also automatically generate test results, automatically generate detection reports, automatically store data and automatically display data, export and print the data, store the data in a picture form, and the like, and the program can be compatible with Wi n xp/Wi n2000/Wi n8/Wi n10, and the lower processing system adopts a siemens programmable controller, so that equipment interference can be effectively reduced, equipment stability can be improved, and a flow chart of the working principle of the system is shown in fig. 2.
In this embodiment, the fire emergency lamp includes drive circuit and lamps and lanterns, and drive circuit's output is connected with the input electricity of lamps and lanterns, and drive circuit is used for providing the electric energy for lamps and lanterns, and lamps and lanterns are used for converting the electric energy into light energy.
In this embodiment, the input end of the circuit detection module is electrically connected with the output end of the driving circuit, the output end of the circuit detection module is electrically connected with the input end of the microprocessor, and the circuit detection module comprises a current acquisition module, a voltage acquisition module and a resistance acquisition module.
The current acquisition module is used for collecting current information in the driving circuit, the voltage acquisition module is used for collecting voltage information in the driving circuit, and the resistance acquisition module is used for collecting resistance information in the driving circuit.
In the process of circuit detection, if the battery discharge end voltage obtained by the test is not less than 80% of the rated voltage (when a lead-acid battery is used, the battery discharge end voltage is not less than 85% of the rated voltage), after the discharge is ended, even if the battery voltage is recovered under the condition of no recharging, the lamp is not restarted, and the static discharge current is not greater than C5A (the acid battery is A), the lamp meets the standard requirement.
Meanwhile, in the test process, a test button is pressed down, a test lamp indicator is lightened to enable the test lamp indicator to be in a main power state, the test is started, a test device is regulated to enable an output voltage to be slowly reduced, namely a voltage display value is slowly reduced, the working state of the test lamp is carefully observed until the test lamp is switched into an emergency state, the rotation voltage regulating device is stopped, software automatically records the output voltage, a system automatically calculates the percentage of the current voltage to the rated voltage, the voltage regulating device is slowly rotated again to enable the output voltage to be slowly increased, namely the voltage display value is slowly increased, the working state of the test lamp is carefully observed until the test is restored to the main power state, the rotation voltage regulating device is stopped, the software automatically records the output voltage, and the system automatically calculates the percentage of the current voltage to the rated voltage; the pressure regulating device is rotated to enable the sample lamp to slowly change within the range of 60% -85%, and the working state of the sample lamp is carefully observed.
If the main power voltage of the sample lamp from the main power state to the emergency state is within 60% -85% of the main power voltage, the main power voltage is not more than 85% of the main power voltage when the main power state is restored from the emergency state to the main power state; when the system voltage is within any voltage within the range of 60% -85%, the phenomena of repeated jumping of the status indicator lamp and the relay and the like do not occur, and the fact that the sample lamp meets the standard requirements is indicated.
In this embodiment, the temperature monitoring module includes a first temperature monitoring module and a second temperature monitoring module, the input end of the first temperature monitoring module is electrically connected with the output end of the lamp, the output end of the first temperature monitoring module is electrically connected with the input end of the microprocessor, the input end of the second temperature monitoring module is electrically connected with the output end of the driving motor, and the output end of the second temperature monitoring module is electrically connected with the input end of the microprocessor.
The first temperature monitoring module is used for monitoring the temperature of the lamp after the light source is generated in real time, and the second temperature monitoring module is used for monitoring the temperature of the driving circuit in operation in real time.
It should be noted that, the first temperature monitoring module and the second temperature monitoring module are both temperature sensors.
In the temperature detection process, a thermocouple temperature measuring sheet is arranged on the surface of an internal element of the sample lamp so as to collect the surface temperature of the sample lamp; if the thermocouple temperature measuring strip is not in place, the surface temperature in the main interface is displayed inaccurately.
The test time setting numerical frame is provided with the test lamp charging time, and the charging time is set to be 24 hours according to the test requirement.
When testing, the test button is pressed, the test is started, the test time is started, the state of the fault indicator lamp is checked, and the display value of the surface temperature of the computer interface is observed after 24 hours, namely the temperature value of the surface temperature of the component for 24 hours. Reinstalling a battery and checking the working condition of the sample lamp; if the surface temperature of the internal components in the time charging loop short circuit test does not exceed 90 ℃, the test piece can still work normally after the battery is reinstalled, and the test piece is qualified.
In this embodiment, the input end of the illumination detection module is electrically connected with the output end of the lamp, and the output end of the illumination detection module is electrically connected with the input end of the microprocessor.
The illumination detection module is used for collecting the light power, the light flux, the light intensity, the illumination and the brightness of a light source generated by the lamp.
In this embodiment, the input end of the alarm module is electrically connected to the output end of the microprocessor.
The alarm module is a fault indicator lamp and is used for indicating corresponding faults of the fire emergency lamp.
The working principle of the embodiment is as follows:
when the fire emergency lamp operates, current information, voltage information and resistance information of the driving circuit are acquired through the circuit detection module, information such as light power, light flux, light intensity, illuminance and brightness of a light source generated by the lamp is collected through the illumination detection module, temperature of the light source generated by the lamp is monitored through the first temperature monitoring module, temperature of the driving circuit during operation is monitored through the second temperature monitoring module, the microprocessor receives the detection data and then sends the detection data to the central processing unit through the wireless module and the receiving module, so that the central processing unit performs investigation on various indexes such as current abnormality, voltage abnormality, resistance abnormality, light source abnormality and temperature abnormality on the fire emergency lamp, if no fault exists, the alarm module does not respond, an instruction is sent to the microprocessor through the sending module and the wireless module, the alarm module is controlled to respond, and meanwhile, the specific fault information is displayed in an image mode so as to remind workers to overhaul.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a fault detection system of centralized control formula fire emergency lamps and lanterns which characterized in that: comprises a fire emergency lamp, a circuit detection module, a temperature monitoring module, an illumination detection module, a microprocessor, a wireless module, a central processing unit and an alarm module,
the fire emergency lamp comprises a driving circuit and a lamp, wherein the output end of the driving circuit is electrically connected with the input end of the lamp, the driving circuit is used for providing electric energy for the lamp, and the lamp is used for converting the electric energy into light energy;
the input end of the circuit detection module is electrically connected with the output end of the driving circuit, the output end of the circuit detection module is electrically connected with the input end of the microprocessor, and the circuit detection module comprises a current acquisition module, a voltage acquisition module and a resistance acquisition module;
the temperature monitoring module comprises a first temperature monitoring module and a second temperature monitoring module, wherein the input end of the first temperature monitoring module is electrically connected with the output end of the lamp, the output end of the first temperature monitoring module is electrically connected with the input end of the microprocessor, the input end of the second temperature monitoring module is electrically connected with the output end of the driving motor, and the output end of the second temperature monitoring module is electrically connected with the input end of the microprocessor;
the input end of the illumination detection module is electrically connected with the output end of the lamp, and the output end of the illumination detection module is electrically connected with the input end of the microprocessor.
2. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the wireless module is in bidirectional electrical connection with the microprocessor, and a receiving module and a transmitting module are arranged between the wireless module and the central processing unit.
3. The fault detection system of a centralized control fire emergency light as claimed in claim 2, wherein: the input end of the receiving module is electrically connected with the output end of the wireless module, the output end of the receiving module is electrically connected with the input end of the central processing unit, the input end of the transmitting module is electrically connected with the output end of the central processing unit, and the output end of the transmitting module is electrically connected with the input end of the wireless module.
4. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the input end of the alarm module is electrically connected with the output end of the microprocessor, and the alarm module is a fault indicator lamp and is used for indicating corresponding faults of the fire emergency lamp.
5. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the central processing unit is used for receiving detection data of the microprocessor, and comprises an operation unit, an execution unit, a storage unit, a display module and a key set.
6. The fault detection system of a centralized control fire emergency light of claim 5, wherein: the operation unit is used for executing arithmetic operation and logical operation, the storage unit is used for storing data to be processed and the processed data, the execution unit is used for receiving commands generated after operation to act, the display module is used for displaying required interface information and data in the form of images, and the key set is used for executing manual operation.
7. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the current acquisition module is used for collecting current information in the driving circuit, the voltage acquisition module is used for collecting voltage information in the driving circuit, and the resistance acquisition module is used for collecting resistance information in the driving circuit.
8. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the illumination detection module is used for collecting the light power, luminous flux, light intensity, illumination and brightness of a light source generated by the lamp.
9. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the first temperature monitoring module is used for monitoring the temperature of the lamp after the light source is generated in real time, and the second temperature monitoring module is used for monitoring the temperature of the driving circuit in operation in real time.
10. The fault detection system of a centralized control fire emergency light as claimed in claim 1, wherein: the first temperature monitoring module and the second temperature monitoring module are both temperature sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311533067.7A CN117580231A (en) | 2023-11-17 | 2023-11-17 | Fault detection system of centralized control type fire emergency lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311533067.7A CN117580231A (en) | 2023-11-17 | 2023-11-17 | Fault detection system of centralized control type fire emergency lamp |
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| Publication Number | Publication Date |
|---|---|
| CN117580231A true CN117580231A (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311533067.7A Pending CN117580231A (en) | 2023-11-17 | 2023-11-17 | Fault detection system of centralized control type fire emergency lamp |
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| CN (1) | CN117580231A (en) |
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2023
- 2023-11-17 CN CN202311533067.7A patent/CN117580231A/en active Pending
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