JP7659405B2 - Sensor Test Equipment - Google Patents

Description

The present invention relates to a detector testing device that tests detectors placed in a monitoring area.

Traditionally, fire alarm systems have been installed in buildings such as offices, and in the event of a fire, sensors detect the smoke, heat, CO, and other substances generated by the fire and send an alarm signal to a receiver to output a fire alarm, allowing firefighting, evacuation, and firefighting activities to be carried out.

After being installed in a building, fire alarm systems are regularly inspected using detector testing equipment. For example, in the case of smoke detectors, the smoke detector installed on the ceiling is removed and a sensitivity test is carried out using a sensitivity tester brought in during the inspection to check that it will alert a fire at a specified smoke concentration. After the smoke detector that has passed the sensitivity test is attached to the ceiling, an operational test is carried out using a portable smoke tester to check that it will alert a fire.

In addition, for heat detectors, operational tests are conducted in which heat is applied to the detector using a heating tester while the detector is installed on the ceiling surface to confirm that it will trigger a fire alarm, and for CO detectors, operational tests are conducted in which CO gas is applied using a CO tester to confirm that it will detect and trigger an alarm.

In addition, conventional detector testing equipment is known that can be used as both a smoke tester and a heat tester, and by switching between smoke testing and heat testing, it is easy to perform operation tests on different types of detectors.

When inspecting disaster prevention equipment, in addition to testing the operation of the detector, a visual inspection is also conducted to check for any abnormalities in the detector's appearance. However, because visual inspection of detectors installed at high altitudes is difficult, a system is also known in which a camera is mounted on a drone, known as an unmanned aerial vehicle, to photograph and inspect the appearance of detectors installed at high altitudes.

Japanese Patent Application Publication No. 2013-127766 Japanese Patent Application Publication No. 2013-127765 Japanese Patent Application Publication No. 2019-074781

However, detectors in fire alarm systems are classified according to the type of detector they use to detect, such as smoke or heat, and even if they are the same smoke or heat detectors, there are differences in the smoke concentration and temperature at which they are judged to indicate a fire, and there are differences in sensitivity types such as type 1 sensitivity, type 2 sensitivity, and type 3 sensitivity, and so test operations that take into account the differences in sensitivity types are required according to the detector type.

However, in conventional detector testing, inspectors check the type of detector (whether it is a heat detector or a smoke detector) from the appearance of the detector being tested, and then check the type of detector, including the sensitivity type, from the letters, symbols, figures, colors, etc. printed on the outside of the detector to select the detector testing equipment to use. They then set appropriate test conditions, such as the concentration of smoke and the temperature of heat generated according to the sensitivity type, to conduct an operation test. This takes time and effort to check the detector type and sensitivity type, and because detectors are installed in high positions such as on ceilings, it can be difficult to distinguish the sensitivity type indicated by letters, symbols, figures, colors, etc., and if this is misread, there is a risk that the operation test will not be performed properly.

In addition, in conventional detector testing equipment that can be used as both a smoke tester and a heat tester, the smoke test section and heat test section are located on the main body of the equipment, which is attached to the tip of a support rod. Switching between the smoke test and the heat test requires lowering the main body of the equipment to the operator's vicinity and switching between the two tests, which is a cumbersome and time-consuming process.

The present invention aims to provide a detector testing device that quickly and appropriately performs operational tests according to the type of detector, improving workability and reliability.

(Sensor test device 1)
The present invention provides a detector testing apparatus for testing a detector disposed in a surveillance area, the apparatus comprising:
A feature of the present invention is that a test is carried out according to the type of detector identified based on the appearance of the detector shown in the image captured by the imaging unit.

(Sensor test device 2)
The present invention provides a detector testing apparatus for testing a detector disposed in a surveillance area, the apparatus comprising:
a device body that is aligned with the detector during testing;
A test source is provided in the device body and generates a predetermined detection target to be detected by the detector in the event of a fire;
An imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the detector based on an appearance of the detector shown in an image captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using a test generation source;
The present invention is characterized by comprising:

Here, the term "detection target" refers to an object that is generated by the physical and chemical phenomenon of a fire and can be detected by a detector. Specific examples of this concept include smoke, heat, and combustion gases such as CO that are generated as a result of a fire.

(Detector sensitivity type identification and test operation)
The test source generates at least one of smoke or heat as a predetermined detection target;
The identification unit, when the detector is a smoke detector or a heat detector, identifies the sensitivity type of the smoke detector or the heat detector based on a sensitivity type display unit of the smoke detector or the heat detector shown in the image captured by the imaging unit;
The test processing section causes a test source to generate smoke of a concentration or heat of a temperature corresponding to the sensitivity type identified by the identification section.

(Detector type identification using machine learning)
The identification unit generates a learning model that learns the correspondence between the image of the sensor to be tested and the sensor type, and inputs the image of the sensor captured by the imaging unit during testing into the learning model to identify the corresponding sensor type.

(Control of occurrence of detection target)
Further, a monitor unit is provided for detecting a predetermined detection target generated by the test source during testing,
The test processing unit controls the generation of a predetermined detection target so that the detected value becomes a predetermined value according to the identified sensor type.

(Generation of detection targets according to test volume)
The test processing section generates a predetermined detection target according to a predetermined test volume that is formed when the device body is aligned with the sensor during testing.

(Identifying and cleaning dirt)
The device body further includes:
A first blowing unit that blows a predetermined detection target generated from a test source to a sensor side during a test;
A second blower that exhausts air from within the device body to the outside;
was established,
The identification unit further identifies dirt on the sensor based on the image captured by the imaging unit,
The test processing unit further includes:
When testing a detector, the first blower is driven.
When the test of the detector is completed or when the detector detects contamination, the first blower and the second blower are driven.

(Dust retention filter)
A filter section for trapping dust is provided at the outlet of the second blower section to the outside.

(Directing airflow toward dirty detector)
The blowing direction of the first blower is variable,
The test processing section directs the blowing direction of the first blowing section toward the dirt on the sensor identified by the identification section.

(Basic Effects)
With the detector testing device of the present invention, when the detector testing device is aligned with a detector installed in the monitored area, the detector type, for example smoke detector, heat detector or CO detector, is identified from the image of the detector captured by the imaging unit, and the test operation is carried out by emitting smoke, heat, CO, etc. according to the detector type, eliminating the need for test personnel to check the detector type of a detector installed on the ceiling surface and set the test conditions. By simply aligning the detector testing device with the detector without being aware of the detector type, an appropriate test suitable for the detector type is automatically performed, thereby improving the efficiency of inspection work.

(Effect of the arrangement of the imaging unit and test source)
Also, because the portion aligned with the detector is opened, for example, when the device main body is aligned from below with a detector installed on the ceiling surface side, an image of the detector viewed from directly below is captured by the imaging unit, and even if the detector to be tested is changed, it is possible to always capture an image of the detector viewed from a fixed direction without depending on the installation location of the detector, making it possible to stably improve the accuracy of the detector type based on the image. Also, because the imaging unit is arranged inside the housing of the device main body with the imaging direction facing the opening direction where the detector is located, and the test source is arranged so as not to obstruct the field of view of the imaging unit, it is possible to clearly capture an overall image of the detector viewed from a fixed direction almost directly below, making it possible to identify the detector type with high accuracy based on the detector image.

(Detector type identification and effect of test operation)
In addition, by generating smoke when a smoke detector is identified, generating heat when a heat detector is identified, and generating CO when a CO detector is identified, it is possible to automatically perform operational tests of the detector in accordance with the detector type identification result.

(Identification of detector sensitivity type and effect of test operation)
Furthermore, by identifying the detector type, including the sensitivity type of smoke detector or heat detector, based on the image captured by the imaging unit, the tester does not need to be aware of not only the detector type but also the sensitivity type. By simply aligning the detector testing device with the detector, smoke of a concentration or heat of a temperature corresponding to the sensitivity type, such as type 1, type 2, or type 3, can be generated, making it possible to conduct an appropriate test corresponding to the sensitivity type.

(Effect of identification based on the correspondence between detector images and detector types)
In addition, the correspondence between the image of the detector to be tested and the detector type is registered, and the image of the detector captured during the test is recognized as a matching or similar registered image to identify the corresponding detector type, making it possible to reliably identify the detector type through image pattern recognition.

(Effect of discrimination based on the correspondence between detector feature images and detector types)
In addition, since detectors are marked with information indicating the detector type (letters, symbols, figures, colors, etc.), the correspondence between the characteristic image including this type indication and the detector type is registered, and by recognizing the characteristic image of the detector captured during testing as a matching or similar registered characteristic image, it is possible to reliably identify the corresponding detector type.

(Effect of identifying detector types using machine learning)
In addition, a learning model is generated that learns the correspondence between detector images and detector types, and by inputting detector images taken during testing into the learning model to identify the corresponding detector type, it is possible to accurately identify the relevant detector type from a wide variety of detector types using machine learning.

(Effect of controlling occurrence of detection targets)
In addition, the monitor unit detects a specified detection target generated by the test source, such as smoke, heat, or CO, and the test processing unit controls the detection value detected by the monitor unit to a specified value of the test conditions according to the identified detector type, making it possible to more reliably perform testing under appropriate test conditions according to the detector type.

(Effect of generation of detection targets according to test volume)
In addition, by generating a specified detection target, such as smoke, heat, or CO, in accordance with a specified test volume formed when the device body is aligned with the detector during testing, it is possible to prevent the generation of more smoke, heat, or CO than necessary, and reduce the amount of smoke, heat, and CO used as a generating source during operational testing.

(Recognizing dirt and the effect of cleaning)
In addition, by blowing predetermined detection targets generated during testing, such as smoke, heat, or CO, into the detector, an operation test can be performed efficiently in a short time, and when the test is completed, the smoke, heat, or CO that has flowed into the detector is quickly removed by exhausting the air inside the device body, speeding up the recovery of the detector and shortening the waiting time until moving on to the next detector test, thereby improving work efficiency. Furthermore, when dirt is identified from an image of the detector, dirt such as dust adhering to the detector can be removed by blowing air into the detector and from inside the device body to the outside.

(Effect of dust retention filter)
In addition, by providing a filter section at the outlet to the outside to trap dust, it is possible to prevent dust and other particles removed from the sensor by the blowing air from being discharged and damaging the indoor environment.

(Effect of directing the airflow toward the dirty detector)
In addition, by directing the airflow direction toward the dirt on a sensor that has been identified from an image of the sensor, it is possible to reliably remove dirt caused by the adhesion of dust and the like.

(Effect of detector test equipment mounted on a moving object)
In addition, the detector test device is mounted on a moving body, for example, an unmanned aerial vehicle known as a drone, and aligned with a detector installed in a monitoring area, so that when a detector is installed at a high place such as a large space structure, the detector device mounted by the unmanned aerial vehicle can be aligned, thereby enabling a detector test to be performed safely and reliably without the need for dangerous work at height. Even for vehicles that are not flying bodies such as unmanned aerial vehicles but run on floors, robots, and the like, a detector test device can be provided on the tip of a telescopic support rod or a crane with three-dimensional degrees of freedom, enabling a detector test to be performed safely and reliably without the need for dangerous work at height.

(Effect of aligning sensors on moving objects by using the same imaging unit)
In addition, by aligning the sensor testing device with the sensor based on the image captured by the imaging unit, the imaging unit of the sensor testing device can be combined into one imaging unit that serves as both the imaging unit required for the operation of the mobile body, simplifying the device configuration and reducing the amount of equipment required to be carried on the mobile body.

(Effect of starting and stopping detector testing)
In addition, the test processing unit begins the test operation when it receives an instruction to start a test, and ends the test operation when it receives an instruction to end the test or when it recognizes the operation of the alarm indicator light from the detector image captured by the imaging unit, making it easy to start and end the test by manual operation, and the test can be ended automatically by recognizing the operation of the detector's alarm indicator light from the detector image, making operation easier.

FIG. 1 is an explanatory diagram showing an embodiment of a sensor testing device. FIG. 2 is an explanatory diagram showing an embodiment of a control unit provided in the sensitivity test apparatus of FIG. 1 is an explanatory diagram showing a list of detector specifications and test conditions corresponding to detector types. FIG. 1 is an explanatory diagram showing the appearance of an exposed type photoelectric smoke detector. FIG. 1 is an explanatory diagram showing the appearance of an embedded photoelectric smoke detector. FIG. 2 is an explanatory diagram showing the appearance of an exposed type constant temperature heat detector. FIG. 2 is an explanatory diagram showing the appearance of an embedded constant temperature heat detector. FIG. 2 is an explanatory diagram showing the appearance of an actuated heat detector. 3 is a flowchart showing a test process performed by the control unit of FIG. 2 . 1 is an illustration showing an embodiment of a sensor test device mounted on a drone. FIG. 13 is an explanatory diagram showing another embodiment of the sensor testing device.

Below, an embodiment of a sensor testing device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment.

[Basic Concept of the Embodiment]
The present embodiment generally relates to a detector testing device. The term "detector testing device" refers to a portable device that tests detectors installed in a monitoring area, and is a concept that includes, for example, a tester, a test jig, and the like.

Here, a "detector" is a device that detects fires or gas leaks in a monitored area and is electrically connected to a receiver, and is a concept that includes, for example, smoke detectors, heat detectors, fire detectors, and gas detectors.

The term "monitoring area" refers to an area that is monitored by a sensor, and is an outdoor or indoor space with a certain extent, and is a concept that includes spaces such as rooms, hallways, and staircases in a building.

Here, the "sensor testing device" performs tests according to the type of sensor identified based on an image of the sensor captured by the imaging unit, and as an example, is composed of a device main body, a test source, an imaging unit, an identification unit, and a test processing unit.

The "device body" is the part that is aligned with the sensor during testing, and as an example, is a housing with an opening at the part that is aligned with the sensor.

In addition, a "test source" is a source that is provided in the device body and generates a specified detection target that can be detected by a detector. Here, the "specified detection target that can be detected by a detector" includes smoke, heat, and combustion gases such as CO that are generated in conjunction with a fire. Therefore, the concept of a test source includes anything that generates smoke, heat, or combustion gases such as CO during testing.

The "imaging unit" is provided in the device body and captures images of sensors installed in the monitoring area. As an example, it is placed in approximately the center of the housing that constitutes the device body, with the imaging direction facing the opening, and at the same time, the "test source" is placed in a position that does not obstruct the imaging area of the imaging unit.

The "identification unit" distinguishes the type of detector based on the image of the detector captured by the imaging unit. Here, "detector type" is a concept that takes into account differences in the operating methods of detectors that detect smoke, heat, CO, and other substances that occur in association with a fire, including types such as smoke detectors (photoelectric type, etc.), heat detectors (constant temperature type, differential type, etc.), and CO detectors. In addition, in cases where there are sensitivity types that detect different smoke concentrations or temperatures, such as smoke detectors and heat detectors, the detector type in this embodiment includes the sensitivity type.

In the case of smoke detectors, there are three types of sensitivity, in descending order of sensitivity: Type 1 sensitivity, Type 2 sensitivity, and Type 3 sensitivity. In the case of heat detectors, there are fixed temperature and activated detection methods, with fixed temperature heat detectors having special sensitivity, Type 1 sensitivity, and Type 2 sensitivity, in descending order of sensitivity, while activated heat detectors have Type 1 sensitivity and Type 2 sensitivity, in descending order of sensitivity. Here, a "fixed temperature" detector detects a fire when the detected temperature reaches a specified temperature, and a "differential" detector detects a fire when the temperature difference between the room temperature and the detected temperature reaches a specified value.

Furthermore, the identification of detector types by the identification unit involves registering the correspondence between the image of the detector to be tested and the detector type, and recognizing the image of the detector captured by the imaging unit during testing as a matching or similar registered image, for example by pattern recognition, to identify the corresponding detector type. Here, the "detector image" is based on the appearance of the detector captured by the imaging unit, for example an image of a detector placed on the ceiling surface viewed from almost directly below, and since the detector is provided with information indicating the detector type, for example a sensitivity type mark displayed as letters, figures, symbols, colors, etc., an image including this information is recognized as a characteristic image as a matching or similar registered characteristic image, for example by pattern recognition to identify the detector type.

In addition, in the case of detectors that have sensitivity types, such as smoke detectors and heat detectors, the detector type including the sensitivity type can be determined from the information indicating the detector type, and therefore the identification of the detector type by the identification unit identifies the detector type including the sensitivity type.

Furthermore, there is nothing to prevent the type of detector from being identified using multiple images based on the appearance of the detector and a characteristic image that contains information indicating the type of detector.

The identification unit also identifies the type of detector based on the results of learning through machine learning. As an example, it generates a learning model that learns the correspondence between the image of the detector to be tested and the detector type, inputs the image of the detector captured by the imaging unit during testing into the learning model, and identifies (outputs) the corresponding detector type.

The "test processing unit" tests the detector by using a test source to generate a specified detection target according to the detector type identified by the identification unit. As an example, if the test processing unit identifies a smoke detector, it tests the detector by generating smoke; if it identifies a heat detector, it tests the detector by generating heat; and if it identifies a CO detector, it tests the detector by generating CO.

In addition, when the identification unit identifies a smoke detector or a heat detector and its respective sensitivity type, the test processing unit generates smoke of a concentration or heat of a temperature corresponding to the sensitivity type and performs a test according to the type sensitivity.

The test processing unit also controls the specified detection target (smoke, heat, CO, etc.) generated by the test source so that the value detected by the monitor unit, which detects the specified detection target, becomes a specified value according to the identified detector type.

The test processing section also generates a specified detection target (smoke, heat, CO, etc.) according to a specified test volume that is formed when the device body is aligned with the detector. Here, the "test volume" refers to the volume of the space that is formed between the periphery of the detector and the inside of the device body when the device body is aligned by pressing it from below against a detector installed on a ceiling surface, for example, and is a concept that roughly includes the value obtained by subtracting the volume of the detector from the internal volume of the device body.

The test processing unit starts the test operation when it receives a test start instruction, and ends the test operation when it receives a test end instruction or identifies the activation of the alarm indicator light from the image of the sensor in the imaging unit. The test start (end) instruction is a concept that includes, for example, instructions that are based on conditions that allow the start and end of the test to be determined, such as when an operation is performed by the operation unit provided in the sensor testing device, or when alignment with the sensor and release of alignment are detected.

In addition, in this embodiment, the device main body is provided with a first blower that blows the specified detection target (smoke, heat, CO, etc.) generated from the test source to the detector side, and a second blower that exhausts the air inside the device main body to the outside. In accordance with this, the test processing unit further drives the first blower to efficiently send the specified detection target (smoke, heat, CO, etc.) to the detector side when testing the detector, and drives the first and second blowers to exhaust to the outside when the test is completed, thereby quickly removing the specified detection target (smoke, heat, CO, etc.) from the detector operating during the test and shortening the time until test recovery.

The identification unit of this embodiment further identifies dirt from the image of the sensor captured by the imaging unit. Accordingly, when the test processing unit identifies dirt on the sensor, it drives the first air blowing unit and the second air blowing unit, and enables the dirt, such as dust, adhering to the sensor to be removed by blowing air.

In addition, when dirt is removed from the detector, a filter section is provided at the outlet of the second blower section to the outside, so that dust removed from the detector is trapped and not blown out to the outside.

In addition, the first air blowing unit can change the air blowing direction, and directs the air blowing direction toward the identified dirt on the sensor to remove dirt such as dust that has adhered to the sensor.

The detector testing device is mounted on a moving object and is aligned with the detector by the movement of the moving object. Examples of moving objects include unmanned aerial vehicles known as drones that align the device body with the detector instead of the tester to carry out the test, as well as moving objects and robots that run on the floor. The "moving object" aligns the detector testing device with the detector based on the image captured by the imaging unit.

In the following explanation, the "detector" is a "smoke detector, heat detector, or CO detector," the "specified detection target" is smoke, heat, or CO, the "test source" emits smoke, heat, or CO depending on the identification result of the detector type, and the "mobile object" is a drone.

[Specific Contents of the Embodiment]
The specific contents of the embodiment of the sensor test device will be described in more detail below. The contents will be described separately as follows.

a. Configuration of detector device a1. Overall structure a2. Device body a3. Imaging section a4. Test source a5. First air blowing section a6. Second air blowing section a7. Monitor section b. Control unit c. Identification section c1. Details of detector type c2. Appearance of different types of detectors c3. Types of smoke detector c4. Types of heat detector c5. Surface-type photoelectric smoke detector c6. Built-in photoelectric smoke detector c7. Surface-type fixed temperature heat detector c8. Built-in fixed temperature heat detector c9. Differential heat detector c10. Type recognition using learning model d. Test processing section d1. Test processing according to detector type d2. Test processing procedure d3. Smoke detector test processing d4. Heat detector test processing d5. CO detector test process d6. Dirt identification and dirt removal process d7. Detector test process e. Detector test device mounted on a drone f. Other embodiment of the detector test device g. Modification of the present invention

[a. Configuration of the detector device]
(a1. Overall structure)
As shown in Fig. 1, a sensor testing device 10 of this embodiment tests a sensor 100 installed in a monitored area, for example, on a ceiling surface 15. The height direction is defined as the up-down direction. The sensor testing device 10 may have any configuration or structure, but for example, a device body 12 of the sensor testing device 10 is fixed to the tip of a support rod 14 equipped with a grip 16. The grip 16 is provided with an operation unit 18 equipped with a start switch 18a and an end switch 18b.

The device body 12 houses the components and equipment necessary for the detector test, and may have any configuration, structure, or shape, but may, for example, have a cylindrical housing 20 with an opening 22 formed at the top. The cylindrical housing 20 is formed, for example, from a transparent synthetic resin, and allows the state of the aligned detector 100 and the state during testing to be visually observed from the outside.

(a2. Device body)
Inside the device main body 12 using the cylindrical housing 20, an imaging section 24, a smoke generating section 26, a heat generating section 28, a CO generating section 30, a monitor section 34, a control unit 36, a first blowing section 38, and a blowing direction driving section 40 are provided. In addition, an exhaust tube 42 is provided downward from the upper part of the side of the cylindrical housing 20. A second blowing section 44 is provided in the exhaust tube 42, and a bag-shaped dust filter 46 is provided in front of it so as to be freely attached and detached. In addition, a battery power source (not shown) is provided in the device main body 12, which supplies operating power to each section. The battery power source may be provided on the grip 16 side at the lower end of the support rod 14.

(a3. Imaging unit)
The imaging unit 24 captures images of the detector 100 arranged on the ceiling surface 15, and may have any function, configuration, or type, but as an example, a known CCD camera that captures video color images is used, and image data (video data) captured at a predetermined frame rate is output during inspection. The imaging unit 24 is disposed at the center of the cylindrical housing 20 through which the central axis 25 in the vertical direction passes, with the imaging direction facing the opening 22, for example, at a position where the aligned detector 100 is imaged from directly below. The imaging unit 24 is disposed so that the smoke generating unit 26, the heat generating unit 28, and the CO generating unit 30 do not fall within the imaging range (imaging field of view) of the imaging unit 24.

(a4. Test Source)
The test source generates a specified detection target that can be detected by a detector in the event of a fire. In this embodiment, the test targets are a smoke detector, a heat detector, and a CO detector, so a smoke generating unit 26, a heat generating unit 28, and a CO generating unit 30 are provided.

The smoke generating unit 26 generates smoke particles or particles equivalent to smoke that can be detected by a smoke detector, and may be of any configuration, structure, or type. Examples include a smoke generating unit provided in a known smoke tester, a device that generates oily smoke by heating a penetrating material that has been permeated with test oil using an electric heater, and a device that impregnates a core material with a water-soluble smoke generating agent and heats it with an electric heater to generate water vapor that mimics smoke.

The heat generating unit 28 generates heat that can be detected by a heat detector, and may be of any configuration, structure, or type, but an example would be an electric heater or the heat generating unit of a known heating tester. The CO generating unit 30 generates CO gas that can be detected by a CO detector, and may be of any configuration, structure, or type, but an example would be a small cylinder filled with CO gas.

(a5. 1st ventilation section)
The first blower 38 blows smoke, heat or CO generated by any of the smoke generating unit 26, heat generating unit 28 and CO generating unit 30 provided as test generation sources into the test space on the opening 22 side of the cylindrical housing 20 on the detector side, and may have any configuration or structure, but as an example, it is a motor-driven blower fan that supplies wind from the blower fan upward from the underside of the smoke generating unit 26, heat generating unit 28 and CO generating unit 30 through a duct, and blows the generated smoke, heat or CO into the test space on the detector side. In addition, the wind from the first blower 38 hits the imaging unit 24, thereby achieving an anti-fogging effect that removes fogging from the lens.

The first blower 38 is also provided with a blowing direction drive unit 40. The blowing direction drive unit 40 is capable of changing the direction in which air is blown out from the blower fan provided in the first blower 38, and blows air onto dirty parts of the sensor that have dust or other particles adhering thereto to remove them. The structure and mechanism of the blowing direction drive unit 40 are arbitrary, and as one example, a swing mechanism that rotates the air outlet with three degrees of freedom is used.

(a6. 2nd ventilation section)
The second blower 44 exhausts the air in the device body 12, i.e., the air in the test space in the cylindrical housing 20, to the outside, and may have any structure or type. As an example, an exhaust pipe 42 is provided downward from the side wall of the opening 22 side of the cylindrical housing 20, and a motor-driven blower fan is provided on the opening side of the exhaust pipe 42. A dust filter 46 is provided on the cylindrical housing 20 side of the second blower 44. The dust filter 46 is provided in the exhaust pipe 42 and retains and removes dust contained in the air to be exhausted to the outside. The structure and type of the dust filter 46 are arbitrary, but a bag-shaped filter with a mesh structure that does not allow dust to pass through is used, and the filter is provided on the exhaust pipe 42 by a known detachable structure or the like, and is replaceable.

(a7. Monitor section)
The monitor unit 34 detects smoke, temperature or CO generated by the smoke generating unit 26, heat generating unit 28 and CO generating unit 30 and outputs the detected value so that the smoke generating unit 26, heat generating unit 28 and CO generating unit 30, which are the test generation sources, can be controlled to generate smoke, temperature or CO under test conditions corresponding to the detector type identified by the identification unit 48.

[b. Control Unit]
As shown in Fig. 1, a control unit 36 is incorporated in the bottom side of the device main body 12. As shown in Fig. 2, the control unit 36 includes an identification unit 48 and a test processing unit 50. The control unit 36 performs control processing required for the detector test, and may have any configuration, function, or type. As an example, a computer circuit including a CPU, memory, various input/output ports, etc. is used, and the functions of the identification unit 48 and the test processing unit 50 are realized by executing a program. The image capturing unit 24 is connected to the identification unit 48. The monitor unit 34 and the operation unit 18 are connected to the test processing unit 50. The monitor unit 34 is provided with a smoke sensor 52, a temperature sensor 54, and a CO sensor 56, each of which is connected to the test processing unit 50.

[c. Identification unit]
As shown in Figure 2, a signal line from the imaging unit 24 provided in the device main body 12 in Figure 1 is connected to the identification unit 48, and image data (video data) of the sensor captured by the imaging unit 24 during a sensor test is input, and the sensor type is identified based on the sensor image in the input image data.

(c1. Details of detector type)
The detector type identified by the identification unit 48 is arbitrary, but in this embodiment, smoke detectors, heat detectors, and CO detectors are identified. The method by which the identification unit 48 identifies the detector type from the detector image is arbitrary, but as an example, a known pattern recognition method is used. For this reason, the identification unit 48 stores (registers) in advance in a memory the correspondence between all detector images to be tested and the detector types. The detector image to be registered is an image of the detector viewed from directly below, captured by the imaging unit 24 after aligning the device main body 12 shown in FIG. 1 with the detector 100 installed on the ceiling surface 15, or an image equivalent thereto.

The identification unit 48 reads image data of the detector captured by the imaging unit 24 during testing, specifically the frame image of the detector, and recognizes registered detector images that match or are similar (with a degree of similarity equal to or greater than a predetermined value) to the frame image that has been read using a known pattern recognition technique, thereby identifying the corresponding detector type.

(c2. Appearance of different types of detectors)
Here, the detectors that are the subject of detector type identification by the identification unit 48 are, as described above, smoke detectors, heat detectors, and CO detectors, but smoke detectors and heat detectors have various appearances due to the manufacturing rod, operation method, detection structure, etc. Also, smoke detectors and heat detectors have sensitivity types that differ according to their operation method and that differ in the smoke concentration and temperature they detect, and the identification unit 48 identifies the detector type, including the operation method and sensitivity type, as the detector type.

In addition to differences in appearance, smoke detectors and heat detectors have a sensitivity type mark indicating the sensitivity type provided at a specified external position. Therefore, the identification unit 48 identifies the detector type including the sensitivity type based on a characteristic image including the sensitivity type mark provided on the detector in a manner similar to pattern recognition based on an external image of the detector.

Figure 3 shows a list of detector types, including the operating method and sensitivity type, identified by the identification unit 48, and also shows an example of test conditions and judgment conditions for each identification result. As shown in Figure 3, detector types are classified into smoke detectors, heat detectors, and CO detectors.

(c3. Type of smoke detector)
Smoke detectors operate using a photoelectric system, which detects smoke concentration by shining light onto the smoke detector in the detector and receiving the scattered light. Photoelectric smoke detectors are classified into three types of sensitivity: Class 1, Class 2, and Class 3.

For example, a "type 2 sensitivity smoke detector" is a detector with a legally stipulated nominal activation concentration K of 10 (%/m), which, when subjected to an activation test in an air current with a wind speed of 20 cm to 40 cm/sec containing smoke with a concentration of (nominal activation concentration K) x 1.5 = 10 (%/m) x 1.5 = 15 (%/m), activates within 30 seconds, and, when subjected to a non-activation test in an air current with a wind speed of 20 cm to 40 cm/sec containing smoke with a concentration of (nominal activation concentration K) x 0.5 = 10 (%/m) x 0.5 = 5 (%/m), for example, does not activate within five minutes in the case of a non-accumulation type. In addition to these type 2 sensitivity detectors with K = 10 (%/m), there are also "type 1 sensitivity smoke detectors" with a nominal activation concentration K of K = 5 (%/m), and "type 3 sensitivity smoke detectors" with a nominal activation sensitivity K of K = 15 (%/m).

The smoke concentration generated by the smoke generating unit 26 as a test condition based on the sensitivity type is arbitrary, but as an example, the operation test conditions are 7.5%/m for type 1 sensitivity, 15.0%/m for type 2 sensitivity, and 22.5%/m for type 3 sensitivity. The criteria for determining whether the test is normal in this case are arbitrary, but as an example, the time until the smoke detector issues a fire alarm (test alarm) is within 30 seconds in all cases.

(c4. Type of heat detector)
As shown in Figure 3, heat detectors are classified into constant temperature type and differential type according to the difference in the driving method. Constant temperature type detects a fire when the detected temperature reaches a specified temperature. Differential type detects a fire when the temperature difference between the room temperature and the detected temperature reaches a specified value.

The sensitivity types of constant temperature heat detectors are classified into special sensitivity, type 1 sensitivity, and type 2 sensitivity, and the conditions are determined by law. As a test condition based on this sensitivity type, the temperature of the heat generated by the heat generating unit 28 is arbitrary, but for a constant temperature heat detector, if the nominal detection temperature is, for example, 45°C to 85°C, then the test temperature is set to, for example, 65°C, which is within that range. The conditions for determining that the test is normal in this case are arbitrary, but as an example, the time until the detector issues a fire alarm (test alarm) is set to within 40 seconds for special sensitivity, within 60 seconds for type 1 sensitivity, and within 120 seconds for type 2 sensitivity.

Differential heat detectors are classified into type 1 and type 2 sensitivity, with the conditions for each being set by law. The test conditions based on this sensitivity type are arbitrary, but as an example, for type 1 sensitivity, the temperature is changed in steps by (room temperature + 20°C), and for type 2 sensitivity, the temperature is changed in steps by (room temperature + 30°C). The conditions for determining whether the test is normal in this case are arbitrary, but as an example, both are within 30 seconds.

Furthermore, for CO detectors, the test conditions are arbitrary, but as an example, CO with a concentration of 50 ppm is generated, and the judgment condition is that the time until a CO alarm is issued is within 30 seconds.

Figures 4 to 8 show examples of sensors that can be identified by the identification unit 48.

(c5. Surface-mounted photoelectric smoke detector)
Fig. 4 shows an exposed type photoelectric smoke detector 102a, with Fig. 4(A) showing a side view and Fig. 4(B) showing a plan view seen from below, and Fig. 4(B) showing a detector image of image data captured by the imaging unit 24. The photoelectric smoke detector 102a is detachably mounted on a detector base 103. One of the external features of the photoelectric smoke detector 102a is that it is provided with a smoke inlet 104, and if the smoke inlet 104 is recognized from the detector image, it can be identified as a smoke detector.

In addition, a sensitivity type mark 108 is provided on the bottom surface of the photoelectric smoke detector 102a. The sensitivity type mark 108 is a character, symbol, figure, color, or combination of these that indicates either type 1 sensitivity, type 2 sensitivity, or type 3 sensitivity. The photoelectric smoke detector and its sensitivity type can be identified from the characteristic image including the sensitivity type mark 108. Furthermore, an operation indicator light 106 is provided on the detector base 103.

(c6. Built-in photoelectric smoke detector)
Fig. 5 shows a built-in photoelectric smoke detector 102b, with Fig. 5(A) showing a side view and Fig. 5(B) showing a plan view seen from below, and Fig. 5(B) showing a detector image of image data captured by the imaging unit 24. The built-in photoelectric smoke detector 102b is embedded in a mounting hole 105 in the ceiling, and is provided with a smoke inlet 104 as one of its external features, and also has a sensitivity type mark 108 in the center of the bottom surface and an operation indicator light 106 in a position off-center. The photoelectric smoke detector and its sensitivity type can be identified from the feature image including the sensitivity type mark 108.

(c7. Exposed constant temperature heat detector)
Fig. 6 shows an exposed type constant temperature heat detector 110a, with Fig. 6(A) showing a side view and Fig. 6(B) showing a plan view seen from below, and the detector image of the image data captured by the imaging unit 24 is Fig. 6(B). The constant temperature heat detector 110a is provided with a heat collecting plate 112 and its supporting structure as one of its external features, and can be identified as a constant temperature heat detector by recognizing the heat collecting plate 112 and/or the supporting structure from the detector image. In addition, a sensitivity type mark 118 and an operation indicator light 116 are provided on the surface of the bottom of the constant temperature heat detector 110a near the outer periphery. The constant temperature heat detector and its sensitivity type can be identified from the feature image including the sensitivity type mark 118.

(c8. Built-in constant temperature heat detector)
Fig. 7 shows a built-in constant temperature heat detector 110b, with Fig. 7(A) showing a side view and Fig. 7(B) showing a plan view from below, and Fig. 7(B) shows the detector image of the image data captured by the imaging unit 24. The built-in constant temperature heat detector 110b is embedded in a mounting hole 105 in the ceiling surface, and one of the external features is a heat collecting plate 112 and its support structure, and if the heat collecting plate 112 and/or the support structure are recognized from the detector image, it can be identified as a constant temperature heat detector. In addition, a sensitivity type mark 118 is provided on the surface near the bottom outer periphery of the constant temperature heat detector 110b , and an operation indicator light 116 is provided on the outer periphery. From the feature image including the sensitivity type mark 118, the constant temperature heat detector and its sensitivity type can be identified.

(c9. Differential heat sensor)
8 shows a differential heat detector 120, with FIG. 8(A) showing a side view and FIG. 8(B) showing a plan view from below, and the detector image of the image data captured by the imaging unit 24 is shown in FIG. 8(B). The differential heat detector 120 is an exposed type that is detachably attached to the detector base 103 on the ceiling surface, and one of its external features is that it does not have a heat collecting plate like a constant temperature heat detector, but instead has a dish-shaped chamber cover 122, and can be identified as a differential heat detector by recognizing its overall shape. In addition, a sensitivity type mark 128 is provided on the surface of the bottom of the operation type heat detector 120 near the outer periphery, and an operation indicator light 126 is provided protruding from the outer periphery. From the characteristic image including the sensitivity type mark 128, the differential heat detector and its sensitivity type can be identified.

CO detectors are not shown in the illustrations because they do not have a sensing type mark, but they have a different appearance from smoke detectors and heat detectors and are equipped with an operation indicator light.

(c10. Type Recognition Using Learning Model)
2, the type of detector can be identified from image data captured by the imaging unit 24 based on the learning results of machine learning. For this purpose, the identification unit 48 generates a learning model that has previously learned the correspondence between images of the various detectors to be tested, for example, those shown in FIGS. 4 to 8, and the detector types.

The learning model is arbitrary, but for example, it may be a multi-layer convolutional neural network, in which supervised learning data is prepared with the sensor image as input and the sensor type as output, and the learning model is trained, for example, by the backpropagation method. During sensor testing, the sensor image captured by the imaging unit 24 is input to the trained learning model, and the corresponding sensor type is output as a prediction result, thereby identifying the sensor type.

[d. Test Processing Section]
(d1. Test process according to sensor type)
The test processing unit 50 tests the detector by generating a detection target from a test generation source according to the detector type identified by the identification unit 48, and although its structure, configuration and function are arbitrary, in this embodiment, if a smoke detector is identified, test smoke is generated from the smoke generation unit 26 for testing, and if a heat detector is identified, heat is generated by the heat generation unit 28 for testing, and further, if a CO detector is identified, CO is generated from the CO generation unit 30 for testing, and a more detailed explanation is as follows.

(d2. Test Processing Procedure)
The processing procedure from the start to the end of the test by the test processing unit 50 is arbitrary, but one example is as follows: First, the test processing unit 50 aligns the device main body 12 with the detector to be tested, and starts the test operation upon receiving a start instruction based on, for example, the operation of the start switch 18a provided on the operation unit 18. This test operation is started by operating a test generation source corresponding to the detector type to generate smoke, heat, or CO, and by operating the first blower unit 38 to generate wind to send the generated smoke, heat, or CO into the test space in which the detector is located.

Furthermore, when the test processing unit 50 starts testing the detector, it monitors the detector's test alert, and when it identifies the test alert, it stops the test operation and performs processing to restore the test. Monitoring of the test alert by the test processing unit 50 is optional, but as an example, it identifies the operation (illumination) of the operation indicator light provided on the detector associated with the test alert. Specifically, when the identification unit 48 identifies the illumination of the operation indicator light from the detector image captured by the imaging unit 24 obtained during the test, it performs a predetermined test restoration processing based on this.

The test recovery process by the test processing unit 50 is optional, but as an example, it stops the generation of smoke, heat, or CO by the test source, then operates the second air blowing unit 44, continues blowing air into the test space by the first air blowing unit 38, and exhausts air from the test space to the outside, removing the smoke, heat, or CO that was added to the detector during the test, and recovering the detector that issued the test alarm. Furthermore, as with the test alarm, if the identification unit 48 identifies from the detector image that the operation indicator light that was activated (lit) has stopped operating (turned off) due to the test recovery, the test processing unit 50 stops the operation of the first air blowing unit 38 and the second air blowing unit 44 as a predetermined test end process.

It is desirable to provide a test display unit in the operation unit 18, for example, to display the progress of the test so that the inspector can recognize the processing operations of starting the test, identifying the test notification, restoring the test, and stopping the test, which are performed by the test processing unit 50.

Next, we will explain in detail the testing process of the smoke detector, heat detector, and CO detector by the test processing unit 50.

(d3. Smoke detector test process)
When the identification unit 48 identifies a smoke detector as the detector type, the smoke detector identification result includes a sensitivity type indicating a type 1 sensitivity, a type 2 sensitivity, or a type 3 sensitivity, as shown in the list in Fig. 3, for example, and further includes target smoke densities (predetermined values) for performing the test, such as 7.5%/m, 15.0%/m, and 22.5%/m, as test conditions corresponding to the sensitivity types. For example, if the identification unit 48 identifies a type 2 smoke detector, the test processing unit 50 performs processing to generate smoke from the smoke generating unit 26 so that the smoke density (detection value) in the test space detected by the smoke sensor 52 provided in the monitor unit 34 becomes the target smoke density (predetermined value) of 15.0%/m acquired as the test condition.

(d4. Heat detector test process)
When the identification unit 48 identifies the detector type as a heat detector, the heat detector identification result includes the detector type, either a constant temperature heat detector or an actuated heat detector, as well as the respective sensitivity types, as shown in the list in Figure 3, and also obtains the test conditions for the heat detector corresponding to the sensitivity type.

For example, if the identification unit 48 identifies a constant temperature heat detector with a first sensitivity, the test processing unit 50 performs a process to generate heat from the heat generating unit 28 so that the temperature in the test space detected by the temperature sensor 54 provided in the monitor unit 34 becomes the target temperature (predetermined value) of 65°C acquired as a test condition.

For example, if the identification unit 48 identifies a dual-sensitivity differential heat detector, the test processing unit 50 performs a process to generate heat from the heat generating unit 28 so that the temperature (detection value) in the test space detected by the temperature sensor 54 provided in the monitor unit 34 rises stepwise (in steps) to the current room temperature acquired as a test condition plus 30°C (room temperature + 30°C). Note that the room temperature in this case is the temperature detected by the temperature sensor 54 before the start of the test.

(d5. CO Sensor Test Processing)
When the identification unit 48 identifies a CO sensor as the sensor type, the identification result of the CO sensor includes the sensor type indicating a CO sensor, as well as the test conditions of the CO sensor, as shown in the list in Fig. 3. For this reason, the test processing unit 50 performs a process of generating CO from the CO generating unit 30 so that the CO concentration (detected value) in the test space detected by the CO sensor 56 provided in the monitor unit 34 becomes the target value (predetermined value) of 50 ppm acquired as the test conditions.

(d6. Dirt Identification and Dirt Removal Treatment)
Furthermore, following the detector test, the test processing unit 50 performs a dirt removal process to identify and remove dirt from the detector. The dirt removal process performed by the test processing unit 50 is optional, but as an example, when dirt such as dust adhesion is identified by the identification unit 48 from the detector image of the image data captured by the imaging unit 24, the test processing unit 50 operates the first blower unit 38 and the second blower unit 44, blows air from the first blower unit 38 directly against the detector to remove the dust, and exhausts the removed dust to the outside by blowing air from the second blower unit.

Here, a blowing direction drive unit 40 is provided at one of the outlets of the first blowing unit 38, and the test processing unit 50 operates the blowing direction drive unit 40 so that the blowing direction is directed toward the dirty position of the detector identified by the identification unit 48, thereby making it possible to direct the air from the first blowing unit 38 to the dirty part of the detector and reliably remove it.

(d7. Processing operation of sensor test)
Next, the detector test process by the test processing unit in Fig. 2 will be described with reference to the flow chart in Fig. 9. As shown in Fig. 9, when the test processing unit 50 determines a test start instruction based on a test start operation or the like in step S1, it proceeds to step S2, instructs the identification unit 48 to read the detector image captured by the imaging unit 24 and identify the detector type, then acquires test conditions according to the detector type in step S3, generates smoke, heat or CO corresponding to the detector type, for example, a smoke detector (photoelectric type), a heat detector (constant temperature type, differential type) or a CO detector in step S4, and also operates the first blower unit 38 to send air into the test space, and controls the generation of smoke, heat or CO so that the monitor values (detection values) of smoke, heat and CO detected in step S5 become target values (predetermined values) indicated by the acquired test conditions.

Next, when the test processing unit 50 determines in step S6 that the detector has issued a test notification, for example, by the illumination of the operation indicator light in the detector image by the identification unit 48, it stops the generation of smoke, heat, or CO in step S7 and exhausts air from the test space to the outside. Next, when the test processing unit 50 determines in step S8 that the test has been restored by, for example, turning off the operation indicator light, it proceeds to step S9 and executes a detector dirt removal process. As part of this dirt removal process, the test processing unit 50 operates the second blower 44 and directs the blowing direction from the first blower 38 by the blowing direction drive unit 40 to the dirty part of the detector, thereby executing the detector dirt removal process. Next, when the test processing unit 50 determines in step S10 that a stop command has been issued based on the operation of the tester, it proceeds to step S11 and stops the operation of the first blower 38 and the second blower 44, thereby completing the series of detector test processes.

[e. Drone-mounted detector test equipment]
Fig. 10 is an explanation showing an embodiment of a sensor test device mounted on a drone. As shown in Fig. 10, the drone 60 is, for example, intended for an unmanned aerial vehicle with a legally required payload of 200g or more, and as is well known, has at least four rotors that rotate horizontally and rotate in opposite directions between adjacent rotors. For example, an inspector can freely take off, land, and fly up, down, left, right, and stop by operating a well-known controller 62. The sensor test device 10 having the structure shown in Fig. 1 is mounted on the upper side of the drone 60.

The sensor test device 10 is provided with an imaging unit 24 in the same manner as shown in FIG. 1, and the imaging direction is set to face upward along the central axis 25 to enable imaging of the sensor 100. Image data (video data) captured by the imaging unit 24 is sent to the controller 62 and displayed on the screen, allowing for simple and reliable piloting to align the mounted sensor test device 10 with the sensor 100 installed at a high altitude. The power source for driving the mounted sensor test device 10 is a power source mounted on the drone 60.

When testing a sensor 100 installed at a high altitude, the sensor test device 10 mounted on the drone 60 needs to be operated to align with the sensor 100 from below, but it is desirable to provide a docking mechanism that docks when aligned with the sensor 100. By providing a docking mechanism, the sensor test device 10 can be aligned with the sensor 100 by the drone 60 and docked, so that the drone 60 will not fall even if it is stopped, and the problem of performing a sensor test while hovering to maintain the flying state of the drone 60 is solved. The structure and type of this docking mechanism are arbitrary, but examples include a mechanism that engages with and releases the engagement from a hook provided on the sensor 100, a mechanism that magnetically attracts and releases the magnetic attraction, and a known docking mechanism.

[f. Other embodiments of the sensor test device]
FIG. 11 is an explanatory diagram showing another embodiment of a sensor testing device. This embodiment is characterized in that the sensor testing device is fixed to a specific test type.

Figure 11 (A) shows a detector testing device 10a dedicated to smoke detectors, in which only a smoke generating unit 26 is provided as the test source for the device main body 12, only a smoke sensor 52 is provided in the monitor unit, and the test processing unit 50 of the control unit 36 performs test processing based on the identification results of the smoke detector of the embodiment described above.

Figure 11 (B) shows a detector testing device 10b dedicated to heat detectors, in which only a heat generating unit 28 is provided as the test source for the device main body 12, only a temperature sensor 54 is provided in the monitor unit, and the test processing unit 50 of the control unit 36 performs test processing based on the identification results of the heat detector of the embodiment described above.

Furthermore, although not shown, it may be a sensor testing device dedicated to CO sensors, in which only the CO generating unit 30 is provided as a test source in the device main body 12, and only the CO sensor 56 is provided in the monitor unit, and the test processing unit 50 of the control unit 36 performs test processing based on the identification results of the CO sensor in the above-mentioned embodiment.

By creating a dedicated detector test device for smoke detectors, heat detectors, or CO detectors in this way, for example, for smoke detectors and heat detectors, it is possible to identify the sensitivity type from the detector image in the image data captured by the imaging unit 24, and easily and reliably perform detector tests according to the sensitivity type.

Furthermore, the test source provided in the device main body 12 may be, for example, any two sources other than one of the smoke, heat, and CO sources, or a test source corresponding to any detector other than smoke, heat, and CO may be provided, and detector testing may be performed in a similar manner.

[g. Modifications of the present invention]
(Imaging unit)
In the above embodiment, the imaging unit is disposed facing directly upward in the center of the main body of the sensor testing device where the central axis passes, but the installation position and imaging direction may be arbitrary as long as the sensor image can be appropriately captured. In addition, multiple imaging units may be provided in the main body of the sensor testing device, and the sensor type may be identified from sensor images captured from different directions.

(Mounting of moving body)
The above embodiment takes as an example a case where the sensor test device is mounted on a drone to test a sensor installed at a high place, but is not limited thereto, and the sensor test device may be mounted on a vehicle or robot that travels on a floor surface by remote control, and the sensor test device may be provided on the tip of a support rod that can be extended and retracted by remote control or a crane that has three-dimensional degrees of freedom, so that the device body can be aligned with the sensor installed on the ceiling surface using an image from the imaging unit to perform a sensor test. Also, when it is possible to test a CO sensor, in addition to the dust filter 46, a CO adsorption layer that adsorbs CO may be provided.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

10, 10a, 10b: Detector testing device 12: Device body 14: Support rod 16: Grip 18: Operation unit 18a: Start switch 18b: Stop switch 20: Cylindrical housing 22: Opening 24: Imaging unit 26: Smoke generating unit 28: Heat generating unit 30: CO generating unit 34: Monitor unit 36: Control unit 38: First blower unit 40: Blowing direction driving unit 42: Exhaust tube 44: Second blower unit 46: Dust filter 48: Identification unit 50: Test processing unit 52: Smoke sensor 54: Temperature sensor 56: CO sensor 100: Detector 102a, 102b: Photoelectric smoke detector 104: Smoke inlet 106, 116, 126: Operation indicator light 108, 118, 128: Sensitivity type mark 110a, 110b: Constant temperature heat detector 112: Heat collecting plate 120: Operation heat detector

Claims (9)

A detector testing device for testing a detector disposed in a surveillance area, comprising:
A detector testing device, characterized in that a test is performed according to a detector type identified based on the appearance of the detector shown in an image captured by an imaging section.
A detector testing device for testing a detector disposed in a surveillance area, comprising:
a device body that is aligned with the sensor during testing;
a test source provided in the device body and generating a predetermined detection target to be detected by the detector in the event of a fire;
an imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the sensor based on an appearance of the sensor shown in an image captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using the test generation source;
A sensor testing device comprising:
A detector testing device for testing a detector disposed in a surveillance area , comprising :
a device body that is aligned with the sensor during testing;
a test source provided in the device body and generating a predetermined detection target to be detected by the detector in the event of a fire;
an imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the sensor based on an image of the sensor captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using the test generation source;
Equipped with
The identification unit of the sensor testing device is characterized in that a learning model is generated that learns the correspondence between the image of the sensor to be tested and the sensor type, and the image of the sensor captured by the imaging unit during testing is input into the learning model to identify the corresponding sensor type.
A detector testing device for testing a detector disposed in a surveillance area , comprising :
a device body that is aligned with the sensor during testing;
a test source provided in the device body and generating a predetermined detection target to be detected by the detector in the event of a fire;
an imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the sensor based on an image of the sensor captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using the test generation source;
a monitor unit that detects the predetermined detection target generated by a test source during a test;
Equipped with
The sensor testing device is characterized in that the test processing unit controls the generation of the specified detection target so that the detected value becomes a specified value corresponding to the identified sensor type.
A detector testing device for testing a detector disposed in a surveillance area , comprising :
a device body that is aligned with the sensor during testing;
a test source provided in the device body and generating a predetermined detection target to be detected by the detector in the event of a fire;
an imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the sensor based on an image of the sensor captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using the test generation source;
Equipped with
The test processing unit generates the predetermined detection target according to a predetermined test volume formed when the device body is aligned with the sensor.
A detector testing device for testing a detector disposed in a surveillance area , comprising :
a device body that is aligned with the sensor during testing;
a test source provided in the device body and generating a predetermined detection target to be detected by the detector in the event of a fire;
an imaging unit provided in the device body for imaging the sensor;
an identification unit that identifies a type of the sensor based on an image of the sensor captured by the imaging unit;
a test processing unit that tests the sensor by generating a predetermined detection target corresponding to the sensor type identified by the identification unit using the test generation source;
Equipped with
The device body further includes:
A first blowing unit that blows the predetermined detection target generated from the test source to a sensor side during a test;
A second blower that exhausts air from within the device body to the outside;
was established,
The identification unit further identifies dirt on the sensor based on the image captured by the imaging unit,
The test processing unit further includes:
When testing the sensor, the first blower is driven,
A sensor testing device characterized in that when the test of the sensor is completed or when the identification unit identifies dirt on the sensor, the first blowing unit and the second blowing unit are driven.
7. The detector testing device according to claim 6 ,
A sensor testing device comprising: a filter section for retaining dust provided at an outlet of the second blowing section to the outside.
The sensor testing device according to claim 6 or 7 ,
The blowing direction of the first blowing section is variable,
The sensor testing device, characterized in that the test processing unit directs the air blowing direction of the first air blowing unit toward the dirt on the sensor identified by the identification unit.
9. A sensor testing device according to claim 2, further comprising :
The test source generates at least one of smoke and heat as the predetermined detection target,
When the detector is a smoke detector or a heat detector, the identification unit identifies the sensitivity type of the smoke detector or the heat detector based on a sensitivity type display unit of the smoke detector or the heat detector shown in the image captured by the imaging unit,
The detector testing device according to claim 1, wherein the test processing unit causes the test source to generate smoke of a concentration or heat of a temperature corresponding to the sensitivity type identified by the identification unit.

Images