A smoke threshold calibration test production apparatus
By combining a ring-shaped structure with a smoke AI acquisition algorithm, the problems of threshold inconsistency and high false alarm rate in the production of smoke detectors have been solved, realizing efficient and automated production of smoke detectors that meet national standards and market demands.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SENAN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-07-07
AI Technical Summary
Existing smoke detectors suffer from poor consistency in alarm thresholds and high false alarm rates during the production process, making it difficult to meet national standards. Furthermore, traditional equipment has low production efficiency and cannot achieve large-scale, standardized production.
It adopts a ring-shaped structure and a smoke AI acquisition algorithm, combined with a PLC control system, to achieve constant control of smoke concentration and dual-station threshold calibration. It is equipped with a leapfrog false alarm detection, supports dual-channel parallel calibration, and realizes automated process.
It achieved a smoke alarm threshold consistency of 99.99%, reduced the false alarm rate to 0.1%, and achieved a single-hour output of 720 units, meeting the GB20517-2006 standard, thus improving production efficiency and product qualification rate.
Smart Images
Figure CN224472088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection equipment testing technology, and in particular to a smoke detector threshold calibration test production equipment. Background Technology
[0002] Currently, smoke detectors face problems such as poor consistency in alarm thresholds and high false alarm rates during production. Traditional equipment struggles to meet the stringent requirements of national standards like GB20517-2006 for threshold accuracy and false alarm control. Existing technologies often employ single-station manual operation for threshold calibration and false alarm detection, resulting in low production efficiency and insufficient detection consistency, hindering the improvement of product qualification rates and preventing large-scale, standardized production. Therefore, a new type of equipment capable of accurate threshold calibration and automated false alarm detection is urgently needed. Utility Model Content
[0003] In view of this, the present invention aims to provide a smoke detection threshold calibration test production equipment to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.
[0004] The technical solution of this utility model embodiment is implemented as follows:
[0005] A smoke detection threshold calibration test production equipment includes a loop and a detection component;
[0006] The loop is located at the front of the entire device and is used for smoke circulation and threshold calibration;
[0007] The detection component is located behind the loop and is used to perform false alarm detection and product screening.
[0008] The loop is symmetrically equipped with workstations A and B. Workstations A and B are controlled by corresponding cylinder buttons to push and pull the smoke detector to be calibrated into the loop. A threshold calibration touch device is installed above the loop to set the smoke calibration threshold. Optical lenses are arranged in pairs on the front and back of the loop to detect the smoke concentration value and feed it back to the threshold calibration touch device.
[0009] Preferably, the ring channel adopts a counterclockwise circulating ring channel structure. A smoke generator is provided on the outside of the ring channel, and the smoke generator is connected to the ring channel to provide a stable smoke source. A fan is provided inside the ring channel to evenly disperse the smoke in the ring channel. A second fan is provided at the back of the ring channel, and the second fan is connected to the ring channel through a smoke exhaust pipe to discharge residual smoke when not in operation.
[0010] Preferably, the threshold calibration touch device has a built-in smoke AI acquisition algorithm. Through the detection data of the optical lens, it calibrates the smoke concentration in the loop in real time, so that the smoke concentration is kept constant at the set calibration value, thereby realizing the consistent learning of the alarm threshold of the smoke detector.
[0011] Preferably, the detection component includes a conveyor belt located behind the loop, and further includes a cross-type ambient light false alarm detection device and a cross-type smoke alarm testing device sequentially arranged on the conveyor belt path.
[0012] Preferably, the cross-type ambient light false alarm detection device is installed at the front end of the conveyor belt to detect whether the smoke detector is falsely alarmed due to environmental factors such as light leakage. If a false alarm is detected, the product is screened into the defective area.
[0013] Preferably, the cross-type smoke alarm testing equipment is located at the rear end of the conveyor belt and is used to detect whether the smoke detector triggers an alarm in a standard smoke environment. If it does not trigger an alarm, it is filtered into the unqualified area.
[0014] Preferably, both station A and station B can simultaneously accommodate three smoke detectors, and the detector to be calibrated can be precisely connected to the loop by pushing and pulling the cylinder button.
[0015] Preferably, the equipment uses a PLC control system to link cylinder buttons, smoke generators, fans, fan II, threshold calibration touch devices, conveyor belts, cross-type ambient light false alarm detection devices, and cross-type smoke alarm testing devices to achieve threshold calibration and false alarm detection. It also supports dual-channel parallel calibration and has a production capacity of 720 units / hour.
[0016] The present invention has the following advantages due to the adoption of the above technical solution:
[0017] 1. High-precision threshold consistency: Through dual-station ring enclosure and smoke AI acquisition algorithm, the alarm threshold consistency reaches 99.99%, with an actual ratio of 1.2 times, which is better than the national standard requirement of 1.6 times, ensuring that the detector performance meets the GB20517-2006 standard.
[0018] II. Low false alarm rate control: Through a leapfrog two-stage false alarm detection (ambient light interference detection + smoke trigger detection), the false alarm detectors are automatically screened, effectively reducing the false alarm rate and improving the product qualification rate.
[0019] 3. High-efficiency mass production: Supports dual-channel parallel calibration, with a single-hour output of 720 units. Combined with a fully automated process, it significantly improves production efficiency and reduces labor costs.
[0020] IV. Applicability and Market Prospects: Compatible with GB20517-2006 standard products, meeting the needs of smart city fire protection IoT construction, providing enterprises with a standardized and large-scale production model, and enhancing market competitiveness.
[0021] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a structural diagram of the present invention;
[0024] Figure 2 This is a structural diagram from another perspective of the present invention;
[0025] Figure 3 This is a structural diagram from a third perspective of the present invention;
[0026] Figure 4 This is a cross-sectional structural diagram of the lifting component of this utility model.
[0027] Reference numerals: 1. Loop; 2. Detection component; 3. Station A; 4. Station B; 5. Cylinder button; 6. Threshold calibration touch device; 7. Optical lens; 9. Smoke generator; 10. Fan; 11. Fan II; 12. Conveyor belt; 13. Cross-type ambient light false alarm detection device; 14. Cross-type smoke alarm testing device. Detailed Implementation
[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0029] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.
[0030] In this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the accompanying drawings and specific circumstances.
[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0032] like Figure 1-4 The present invention provides a smoke detection threshold calibration test production equipment, including a loop 1 and a detection component 2.
[0033] Loop 1 is located directly in front of the entire device and is used for smoke circulation and threshold calibration;
[0034] The detection component 2 is located behind the loop and is used to perform false alarm detection and product screening;
[0035] A station 3 and B station 4 are symmetrically arranged at the front of the loop 1. Stations A and B are controlled by corresponding cylinder buttons 5 to push and pull, sending the smoke detector to be calibrated into the loop. A threshold calibration touch device 6 is installed above the loop to set the smoke calibration threshold. Optical lenses 7 are arranged in pairs on the front and back of the loop 1 to detect the smoke concentration value and feed it back to the threshold calibration touch device 6. The loop 1 adopts a counterclockwise circular loop structure. A smoke generator 9 is provided outside the loop 1 and is connected to the loop 1 to provide a stable smoke source. A fan 10 is provided inside the loop 1 to evenly disperse the smoke in the loop 1. A second fan 11 is provided at the back of the loop and is connected to the loop 1 through a smoke exhaust pipe to discharge residual smoke when not in operation.
[0036] In this embodiment, specifically, the threshold calibration touch device 6 has a built-in smoke AI collection algorithm. Through the detection data of the optical lens 7, it calibrates the smoke concentration in the loop in real time, so that the smoke concentration is kept constant at the set calibration value, thereby realizing the consistent learning of the alarm threshold of the smoke detector.
[0037] In this embodiment, specifically, the detection component 2 includes a conveyor belt 12 located behind the loop 1, and also includes a cross-type ambient light false alarm detection device 13 and a cross-type smoke alarm testing device 14 sequentially arranged on the path of the conveyor belt 12. The cross-type ambient light false alarm detection device 13 is located at the front end of the conveyor belt 12 and is used to detect whether the smoke detector is falsely alarmed due to environmental factors such as light leakage. If a false alarm is detected, the product is screened into the defective area. The cross-type smoke alarm testing device 14 is located at the rear end of the conveyor belt 12 and is used to detect whether the smoke detector triggers an alarm in a standard smoke environment. If it is not triggered, it is screened into the unqualified area.
[0038] In this embodiment, specifically, both station A 3 and station B 4 can simultaneously place three smoke detectors. By pushing and pulling the cylinder button 5, the detector to be calibrated can be precisely docked with the loop 1.
[0039] In this embodiment, the equipment specifically uses a PLC control system to link cylinder button 5, smoke generator 9, fan 10, fan 2 11, threshold calibration touch device 6, conveyor belt 12, cross-type ambient light false alarm detection device 13 and cross-type smoke alarm testing device 14 to achieve threshold calibration and false alarm detection, and supports dual-channel parallel calibration, with a production capacity of 720 units / hour.
[0040] When this utility model is in operation:
[0041] 1. Threshold calibration stage operation
[0042] Workstation push and smoke preparation
[0043] The operator controls the push and pull of stations A 3 and B 4 via cylinder button 5, pushing three detectors to be calibrated into loop 1 at each station. The smoke generator 9 starts, releasing smoke into the loop, and the fan 10 operates synchronously to evenly disperse the smoke, ensuring uniform concentration.
[0044] Concentration calibration and threshold learning
[0045] Optical lens 7 detects the smoke concentration in the loop in real time, and the data is fed back to the threshold calibration touch device 6. The device dynamically adjusts the smoke output through a smoke AI acquisition algorithm to keep the concentration constant at a set value, such as 0.11 dB / m³. The detector cycles counterclockwise in the loop for 20 seconds to complete the threshold consistency learning with a consistency of ≥99.99%. After calibration, fan 11 starts to discharge residual smoke.
[0046] 2. False Alarm Detection Phase Operation
[0047] Ambient light interference detection
[0048] The calibrated detectors flow via conveyor belt 12 into the front end of the cross-type ambient light false alarm detection equipment 13. The equipment simulates strong light ≥5000 lux; products that trigger false alarms are removed and placed in the defective area; qualified products continue to be transmitted.
[0049] Smoke Trigger Detection
[0050] The detector enters the rear end of the cross-type smoke alarm testing equipment 14 and is injected with standard smoke at 0.15 dB / m. Detectors that do not trigger an alarm are pushed to the non-alarm zone, while those that trigger an alarm are considered qualified products and flow into the finished product area.
[0051] 3. Automation control and production efficiency
[0052] End-to-end linkage
[0053] The PLC control system links all components, including cylinders, smoke generators, fans, and testing equipment, to achieve full automation of "feeding, calibration, and testing." It supports dual-channel parallel calibration and has a single-hour output of 720 units, meeting the needs of large-scale production.
[0054] Technical effects and advantages
[0055] Threshold consistency: The actual ratio ≤ 1.2 times is better than the national standard of 1.6 times, and the consistency is ≥ 99.99%, which complies with the GB20517-2006 standard.
[0056] False alarm rate: The two-stage detection reduces the false alarm rate to ≤0.1%, far exceeding the >5% of traditional equipment.
[0057] Flexibility: The bottom can be equipped with heavy-duty casters, and the built-in system supports environments without power supply, adapting to various operating scenarios.
[0058] This equipment achieves high precision, low false alarms, and high-efficiency production through constant smoke control in a circular channel, dual-detection across a straddle mechanism, and fully automated linkage. The collaborative operation of all components ensures product quality and optimized production processes, providing a standardized solution for smoke detector manufacturing and enhancing enterprise competitiveness and market adaptability.
[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A smoke detection threshold calibration test production equipment, comprising a ring track (1), characterized in that, It also includes a detection component (2); The loop (1) is located directly in front of the entire device and is used for smoke circulation and threshold calibration; The detection component (2) is located behind the loop and is used to perform false alarm detection and product screening; The loop (1) is symmetrically provided with station A (3) and station B (4) in front. Stations A and B are controlled by corresponding cylinder buttons (5) to push and pull, sending the smoke detector to be calibrated into the loop. A threshold calibration touch device (6) is installed above the loop to set the smoke calibration threshold. Optical lenses (7) are provided in pairs on the front and back of the loop to detect the smoke concentration value and feed it back to the threshold calibration touch device (6).
2. The smoke detection threshold calibration test production equipment according to claim 1, characterized in that: The ring channel (1) adopts a counterclockwise circular ring structure. A smoke generator (9) is provided outside the ring channel (1). The smoke generator (9) is connected to the ring channel (1) to provide a stable smoke source. A fan (10) is provided inside the ring channel (1) to evenly disperse the smoke in the ring channel (1). A second fan (11) is provided at the back of the ring channel. The second fan (11) is connected to the ring channel (1) through a smoke exhaust pipe to discharge residual smoke when not in operation.
3. The smoke detection threshold calibration test production equipment according to claim 2, characterized in that: The threshold calibration touch device (6) has a built-in smoke AI acquisition algorithm. Through the detection data of the optical lens (7), it calibrates the smoke concentration in the loop in real time, so that the smoke concentration is kept constant to the set calibration value, thereby realizing the consistent learning of the alarm threshold of the smoke detector.
4. The smoke detection threshold calibration test production equipment according to claim 1, characterized in that: The detection component (2) includes a conveyor belt (12) located behind the loop (1), and also includes a cross-type ambient light false alarm detection device (13) and a cross-type smoke alarm test device (14) sequentially arranged on the path of the conveyor belt (12).
5. The smoke detection threshold calibration test production equipment according to claim 4, characterized in that: The cross-type ambient light false alarm detection device (13) is set at the front end of the conveyor belt (12) to detect whether the smoke detector is falsely alarmed due to light leakage environmental factors. If a false alarm is detected, the product will be screened into the defective area.
6. The smoke detection threshold calibration test production equipment according to claim 4, characterized in that: The cross-type smoke alarm testing device (14) is located at the rear end of the conveyor belt (12) and is used to detect whether the smoke detector triggers an alarm in a standard smoke environment. If it does not trigger an alarm, it is filtered into the unqualified area.
7. The smoke detection threshold calibration test production equipment according to claim 1, characterized in that: Both station A (3) and station B (4) can simultaneously place three smoke detectors. By pushing and pulling the cylinder button (5), the detector to be calibrated can be accurately docked with the loop (1).
8. The smoke detection threshold calibration test production equipment according to any one of claims 1-7, characterized in that: The device uses a PLC control system to link the cylinder button (5), smoke generator (9), fan (10), fan two (11), threshold calibration touch device (6), conveyor belt (12), cross-type ambient light false alarm detection device (13) and cross-type smoke alarm test device (14) to realize threshold calibration and false alarm detection, and supports dual-channel parallel calibration.