Integrated intelligent alarm system

Abstract

The utility model discloses an integrated intelligent alarm system. The system comprises a network switch, a touch screen, a wireless router, a PLC (Programmable Logic Controller), a first transformer, an intermediate relay, two expansion modules and a digital input / output expansion module, the power supply ends of the two expansion modules and the digital input and output expansion module are connected to the first transformer, the output end of the PLC is connected to the intermediate relay, the intermediate relay is connected to alternating current, and the two expansion modules are respectively connected with a temperature and humidity sensor, a smoke sensor, a carbon dioxide sensor and an air quality sensor. The utility model has the advantages of simple design, high integration level, easy comprehensive control, very easy control, simple and clear circuit, high control reliability, operation and signal feedback only when it is confirmed that a fire is really generated, and the reliability of operation is further improved.

Description

Technical Field

[0001] This utility model relates to the field of alarm systems, and in particular to an integrated intelligent alarm system. Background Technology

[0002] In highly intelligent and comfortable buildings, especially industrial clean buildings with high requirements for environmental temperature, humidity, and air quality, real-time monitoring and alarms of the surrounding environment are crucial to ensuring product quality and production process safety. The "Code for Design of Cleanrooms" (GB 50073) mandates that fire alarm detectors be installed in the production floor, technical mezzanine, machine room, and station room of cleanrooms, and the control and display functions of the control equipment should comply with the relevant provisions of the current "Code for Design of Automatic Fire Alarm Systems" (GB 50116).

[0003] In addition to automatic control, a manual direct control device should be installed in the fire control room. This device should be able to stop the corresponding air conditioning circulating fans, exhaust fans, and fresh air fans, and control the illumination of backup emergency lighting and evacuation sign lights. Furthermore, given the requirements of the product manufacturing process in cleanrooms and the need to maintain a necessary cleanliness level, manual verification and control should be performed after a fire detector alarm is triggered in the cleanroom to avoid significant losses. Simultaneously, the alarm response time of devices equipped with self-igniting, combustible, and toxic gas detection devices should meet relevant regulations. Therefore, the requirements for alarm control systems are quite complex and the wiring is cumbersome. Currently, traditional alarm system designs can only operate individually and cannot achieve comprehensive integrated control. Moreover, the designs of various systems on the market either lack a visually appealing user interface or have a simple interface that is overly cumbersome and difficult to understand, making them inconvenient to operate and potentially delaying appropriate actions. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an integrated intelligent alarm system that can realize integrated system control, improve the reliability and intelligence of the system, and make it easy to operate.

[0005] To solve the above technical problems, the integrated intelligent alarm system of the present utility model includes a network switch, a touch screen, a wireless router, and a PLC programmable logic controller that are respectively connected to the network switch. It also includes a first transformer for voltage transformation, and intermediate relays (KA0 to KA10), a first expansion module, a second expansion module, and a digital input / output expansion module that are supporting the PLC programmable logic controller. The input common terminal 1M and the output common terminal 1L of the PLC programmable logic controller and the digital input / output expansion module are connected to the positive pole of 24V of the first transformer. The power supply terminals of the first expansion module, the second expansion module, and the digital input / output expansion module are connected to the positive and negative poles of 24V of the first transformer. The output terminals of the PLC programmable logic controller are sequentially connected to the 13 ports of the intermediate relays (KA0 to KA10). The 14 ports of the intermediate relays (KA0 to KA10) are connected to the negative pole of 24V of the first transformer. The 5 ports and 8 ports of the intermediate relays (KA0 to KA3, KA5 to KA10) are respectively connected to the positive and negative poles of 24V of the first transformer. The 5 ports and 8 ports of the intermediate relay (KA4) are connected to 220V alternating current. The first expansion module is connected with a temperature and humidity sensor, a smoke sensor, and a carbon dioxide sensor. The second expansion module is connected with an air quality sensor. [[ID=​1]] [[ID=​2]]

[0006] [[ID=​3]]Different input terminals of the PLC programmable logic controller are respectively connected with a fire reset button, a combustible detector, a smoke detector, a temperature detector, an emergency button, an infrared pair emitter receiver, the NO control terminal of an environmental monitoring switch, a fire pump button, a ventilation opening button, and a ventilation closing button. [[ID=​4]] [[ID=​5]]

[0007] [[ID=​6]]The first transformer and the PLC programmable logic controller are connected to 220V alternating current through a first air switch. [[ID=​7]] [[ID=​8]]

[0008] <​ / ​> [[ID=​9]]It also includes a second air switch and a second transformer connected to the second air switch. The second air switch is connected to 220V alternating current and supplies power to the second transformer. The combustible detector, the smoke detector, the temperature detector, and the infrared pair emitter receiver are all connected to the second transformer. [[ID=​10]] [[ID=​11]]

[0009] [[ID=​12]]The output terminals 3 and 4 of the digital input / output expansion module are respectively connected to a green indicator light and a red indicator light. [[ID=​13]] [[ID=​14]]

[0010] [[ID=​15]]The 9 ports and 12 ports of the intermediate relays (KA0, KA1) are respectively connected with a fire sound and light alarm and a fire pump. The 9 ports and 12 ports of the intermediate relay (KA4) are respectively connected to the L and N terminals of a air shower. The 9 ports and 12 ports of the intermediate relays (KA5 to KA10) are respectively connected with an environmental sound and light alarm, corridor lighting, emergency lighting, intelligent lighting A, intelligent lighting B, and intelligent lighting C. [[ID=​16]] [[ID=​17]]

[0011] The DC24+ of the ventilation and smoke exhaust integrated machine is connected to port 9 of the intermediate relay (KA2) and port 12 of the intermediate relay (KA3), and the DC- of the ventilation and smoke exhaust integrated machine is connected to port 12 of the intermediate relay (KA2) and port 9 of the intermediate relay (KA3).

[0012] The wireless router connects to host computer number one and host computer number two via a local area network.

[0013] The advantages of this utility model are:

[0014] This integrated intelligent alarm system combines fire protection, smoke control and exhaust, environmental monitoring, air shower dust removal, and temperature and humidity monitoring into a single unit, employing a rational control strategy. It also features a visual control interface and connects to the integrated system via programming. This makes the entire control system simple to set up, highly integrated, easy to control comprehensively, and with simple and clear wiring, ensuring high reliability. Furthermore, the system incorporates specific fire alarm mechanisms, allowing operation and feedback signals only after a confirmed fire, further enhancing operational reliability. Attached Figure Description

[0015] Figure 1 This is a communication principle diagram of the integrated intelligent alarm system of this utility model;

[0016] Figure 2 This is a wiring diagram of the PLC programmable logic controller and three expansion modules in this utility model, along with the power supply, intermediate relays, and environmental monitoring sensors.

[0017] Figure 3 This is a wiring diagram of the input device and the PLC (Programmable Logic Controller) in this utility model;

[0018] Figure 4 This is a wiring diagram of the intermediate relay and the output device in this utility model;

[0019] Figure 5 This is a schematic diagram of the control panel of the touch screen in this utility model. Detailed Implementation

[0020] The integrated intelligent alarm system of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0021] like Figure 1As shown in the figure, the integrated intelligent alarm system of the present utility model includes a network switch 5, a touch screen 1, a wireless router 2, and a PLC programmable logic controller 6 that are respectively connected to the network switch 5. Among them, the touch screen 1 is connected to a 24V power line and connected to the network switch 5 through a network cable. The network switch 5 is connected to the wireless router 2 and the PLC programmable logic controller 6 through network cables. The wireless router 2 is connected to a first host computer 3 and a second host computer 4 through a local area network. It further includes a first transformer (24V transformer) 38 for voltage transformation, and intermediate relays (KA0 to KA10), a first expansion module 7, a second expansion module 8, and a digital input / output expansion module (16-channel digital input / output expansion module) 9 that are supporting the PLC programmable logic controller 6. Figure 2 The figure shows the wiring schematic diagram of the PLC programmable logic controller 6 and three expansion modules with power supplies, intermediate relays, and environmental monitoring sensors. Specifically, as Figure 2 shown, it includes a PLC (programmable logic controller) 6, a first expansion module (4-channel analog input module) 7, a second expansion module (4-channel analog input module) 8, a 16-channel digital input / output expansion module 9, a temperature and humidity sensor 10, an air quality sensor 11, a smoke sensor 12, a carbon dioxide sensor 13, a green indicator light 14, a red indicator light 15, an air switch 37, a 24V transformer 38, and intermediate relays (KA0 to KA10); Figure 3 The figure shows the wiring schematic diagram of input-end devices and the PLC (programmable logic controller), including a PLC (programmable logic controller) 6, a combustible gas detector 16, a smoke detector 17, a heat detector 18, a fire reset button 19, an emergency button 20, an environmental monitoring switch 21, a fire pump button 22, a ventilation start button 23, a ventilation stop button 24, an infrared pair receiver 25, an infrared pair transmitter 26, an air switch 39, and a 24V transformer 40; Figure 4 The figure shows the wiring schematic diagram between the intermediate relays and output devices, including intermediate relays (KA0 to KA10), corridor lighting 27, an emergency lighting system 28, intelligent lighting A 29, intelligent lighting B 30, intelligent lighting C 31, a fire sound and light alarm 32, a fire pump 33, a smoke exhaust and ventilation integrated machine 34, an environmental sound and light alarm 35, and a dust removal air shower 36;

[0022] Among them, Figure 2Air switch 37 is connected to 220V AC power, which powers transformer 38 and PLC 6. Transformer 38 outputs 24VDC power, connecting the common input terminal 1M and common output terminal 1L of PLC 6 and 16-channel digital input / output expansion module 9 to the positive 24V terminal of transformer 38. The power terminals of expansion module 7, expansion module 8, and digital input / output expansion module 9 are connected to the positive and negative 24V terminals of the transformer. The output terminals of PLC 6 are sequentially connected to port 13 of intermediate relays (KA0-KA10), port 14d of intermediate relays (KA0-KA10) is connected to the negative 24V terminal of transformer 38, ports 5 and 8 of intermediate relays (KA0-KA3, KA5-KA10) are connected to the positive and negative 24V terminals of transformer 38, and ports 5 and 8 of intermediate relays (KA0-KA3, KA5-KA10) are connected to the positive and negative 24V terminals of transformer 1, respectively. Ports 5 and 8 of intermediate relay (KA4) are connected to 220V AC power. The circuit consists of an expansion module 7 connected to a temperature and humidity sensor 10, a smoke sensor 12, and a carbon dioxide sensor 13; an expansion module 8 connected to an air quality sensor 11; and an expansion module 9 connected to output terminals 3 and 4 of the 16-channel digital input / output expansion module 9, respectively connected to indicator lights 3 and 4. The brown and black wires of the temperature and humidity sensor 10 are connected to the power supply, and the blue and green wires are connected to the four analog inputs (0+ and 0-) respectively. The yellow and white wires are connected to the four analog input modules (1+ and 1-) respectively. The brown and black wires of the smoke sensor 12 are connected to a 24V power supply, and the blue and green wires are connected to the four analog input modules (2+ and 2-) respectively. The brown and black wires of the carbon dioxide sensor 13 are connected to a 24V power supply, and the blue and green wires are connected to the four analog input modules (3+ and 3-) respectively. The brown and black wires of the air quality sensor 11 are connected to a 24V power supply, and the blue and green wires are connected to the four analog input modules (0+ and 0-) respectively. The yellow and white wires are connected to the four analog input modules (1+ and 1-) respectively.

[0023] Figure 3 Connect circuit breaker 39 (No. 2) to 220V and power transformer 40 (No. 2). Connect the NO pins of fire reset button 19, combustible detector 16, smoke detector 17, heat detector 18, emergency button 20, infrared beam receiver 25, and environmental monitoring switch 21 to inputs 0, 1, 2, 3, 4, 5, and 6 of PLC programmable logic controller 6, respectively. Connect fire pump button 22, ventilation start button 23, and ventilation stop button 24 to inputs 0, 2, and 3 of input 7 of PLC programmable logic controller 6, respectively. Figure 2Except for the PLC programmable logic controller 6 and the infrared beam transmitter 26, the COM terminals of all electrical components are connected to the 24V negative terminal of transformer 38. The DC24V+ and DC24V- terminals of the combustible detector 16, smoke detector 17, heat detector 18, infrared beam transmitter 26, and infrared beam receiver 25 are connected to transformer 40.

[0024] Figure 4 In this system, the DC24+ and DC24- terminals of the fire alarm 32 and fire pump 33 are connected to ports 9 and 12 of intermediate relays (KA0 and KA1), respectively. The L and N terminals of the air shower 36 are connected to ports 9 and 12 of intermediate relay (KA4), respectively. The environmental alarm 35, corridor lighting 27, emergency lighting 28, intelligent lighting A29, intelligent lighting B30, and intelligent lighting C31 are connected to ports 9 and 12 of intermediate relays (KA5~KA10), respectively. The DC24+ terminal of the ventilation and smoke exhaust unit 34 is connected to port 9 of intermediate relay (KA2) and port 12 of intermediate relay (KA3). The DC- terminal of the ventilation and smoke exhaust unit is connected to port 12 of intermediate relay (KA2) and port 9 of intermediate relay (KA3). Fourteen program segments are compiled by the PLC and uploaded to the PLC programmable logic controller 6 to realize the functions of the fire alarm system, environmental monitoring system, and local intelligent lighting system.

[0025] Its working principle is as follows:

[0026] The fire alarm method is as follows: In automatic control mode, when the combustible detector 16, smoke detector 17, and heat detector 18 are triggered, after 5 seconds or upon human intervention, pressing the emergency button 20 will trigger the fire alarm 32 and activate the emergency lighting 28. If it is a false alarm, pressing the fire reset button 19 will resolve the issue. When the smoke detector 17 is triggered or the emergency button 20 is pressed, the ventilation system 34 will automatically shut down and the smoke exhaust system 34 will activate. When the fire alarm 32 is triggered, pressing the emergency button 20 and the fire pump button 22 will activate the fire pump 33, requiring double confirmation to prevent erroneous activation. If the fire is over, pressing the fire pump button 22 again will stop the fire pump from starting. In manual control mode, the fire alarm 32, smoke exhaust system 34, emergency lighting 28, and fire pump 33 can also be manually activated.

[0027] The environmental monitoring method is as follows: Press the ventilation start button 23 to start the ventilation system 34, and press the ventilation pipe close button 24 to close the ventilation system 34; trigger the infrared beam transmitter 25 and infrared beam receiver 26 to start the air shower 36 for dust removal, and turn it off after 5 seconds; use the analog input module (7) (8) of the PLC to convert the current analog quantity of the temperature and humidity sensor 10, smoke sensor 12 and carbon dioxide sensor 13 into the PLC range, and then convert it into the effective value of the PLC internal byte address according to the sensor range; set the upper and lower limits of the environmental value control, and when the environmental monitoring switch 21 is pressed, when the value exceeds the range, the environmental sound and light alarm 35 will be triggered. When the value returns to normal or the environmental monitoring switch 21 is turned off, the environmental sound and light alarm 35 will stop.

[0028] The intelligent lighting method is as follows: A real-time clock module is set up, converting it into VB bytes, and VB0 to VB7 are designated as clock modules, which cannot be used by other programming segments. The PC clock is read for time unification, and VB and VW are converted into valid values. Under automatic control, the corridor lighting 27 can be set to automatically start and turn off at specific times and days of the week, according to requirements. It can also be manually turned on and off. An intelligent lighting button is set on touchscreen 1. Pressing the intelligent lighting button on touchscreen 1 activates intelligent lighting A29 the first time, B30 the second time, and C31 the third time. Pressing it a fourth time turns off intelligent lighting A29, B30, and C31.

[0029] As can be seen from the above working principle, for the fire alarm module: when the emergency button 20 is pressed or the detector delay timer is triggered, the fire audible and visual alarm 32 is activated and self-locked; when the fire alarm reset button 19 is pressed, the fire audible and visual alarm 32 is stopped; when the automatic control button of the touch screen 1 is pressed, the manual mode is changed to automatic mode, so that the touch screen 1 can directly control the audible and visual alarm 32.

[0030] For the detector delay module, triggering the combustible detector 16, smoke detector 17, or heat detector 18 for five seconds will activate the audible and visual alarm 32. Pressing the fire alarm reset button 19 will stop the fire audible and visual alarm 32 and reset the timer.

[0031] For the smoke exhaust fan delay module, triggering the smoke detector 17 or pressing the emergency button 20 will stop the ventilation system of the smoke exhaust fan 34, and after a 4-second delay, start the smoke exhaust system of the smoke exhaust fan 34. Press the fire alarm reset button 19 to reset the timer.

[0032] For the smoke exhaust module, in automatic control mode, the smoke exhaust delay conversion timer is triggered to start the smoke exhaust system 34 and lock it. Smoke exhaust and ventilation cannot be carried out at the same time. In manual control mode, the smoke exhaust system 34 can be directly controlled through the touch screen 1.

[0033] For fire alarm-linked emergency lighting, in automatic control mode, the fire alarm 32 is triggered to start the emergency lighting 28. In manual control mode, the emergency lighting 28 can be directly controlled via the touch screen 1.

[0034] For fire alarm-linked fire pumps, in automatic control mode, triggering the fire alarm 32 and pressing the emergency stop button 20 and the fire pump button 22 will start the fire pump 33. Regardless of whether it is in automatic or manual control mode, the touch screen 1 can directly start and stop the fire pump 33.

[0035] For the environmental monitoring module, the functions are as follows: In automatic control mode, pressing the ventilation system on button 23 starts the ventilation system 34; pressing the ventilation system off button 24 either triggers a smoke exhaust delay or starts / stops the smoke exhaust system. In manual control mode, the ventilation system 34 can be directly controlled via the touchscreen.

[0036] For the sensor module, the analog input program is used to convert the analog current of temperature and humidity sensor 10, smoke sensor 11, carbon dioxide sensor 12, and air quality sensor 13 into PLC ranges, and then converts them into valid values ​​of PLC internal byte addresses according to the sensor ranges.

[0037] For the environmental alarm module, in automatic control mode, when the environmental switch button 21 is pressed, the environmental sound and light alarm 35 will be activated when the temperature or humidity value is greater than or less than the set range. In automatic control mode, the environmental sound and light alarm 35 can be directly controlled through the touch screen 1.

[0038] For the air shower module, in automatic control mode, when the infrared transmitter 26 and the infrared receiver 25 are triggered to start the air shower 36, it will turn off after 5 seconds. In manual control mode, the air shower 36 can be directly controlled via the touch screen 1.

[0039] For the real-time clock module, we write the module, convert it to VB bytes, and designate VB0 through VB7 as dedicated code for the clock module, preventing its use by other code segments. We read the PC clock for time synchronization and convert the VB and VW bytes into valid values.

[0040] For the corridor lighting module, in automatic control mode, the hour, minute, and day of the week can be set via touchscreen 1 to turn the corridor lighting 27 on or off. The corridor lighting 27 can also be turned on and off directly via touchscreen 1.

[0041] For the green running status light, the running status light 14 will automatically light up when the PLC programmable logic controller 6 is started.

[0042] For the stop status light 15, when the PLC programmable logic controller 6 is started, the stop status light 15 is turned off. It is not started by default. The stop status light 15 is only started when the PLC program is stopped.

[0043] For the one-button multi-control module, corresponding buttons are set on the touch screen 1. When the smart lighting button 45 of the touch screen 1 is pressed, the first press will turn on smart lighting A29, the second press will turn on smart lighting A29 and smart lighting B30, the third press will turn on smart lighting A29, smart lighting B30 and smart lighting C31, and the fourth press will turn off smart lighting A29, smart lighting B30 and smart lighting C31.

[0044] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An integrated intelligent alarm system, characterized in that: It includes a network switch (5), a touch screen (1), a wireless router (2), and a PLC programmable logic controller (6) that are respectively connected to the network switch (5). It also includes a first transformer (38) for voltage transformation, and intermediate relays KA0 - KA10, a first expansion module (7), a second expansion module (8), and a digital input / output expansion module (9) that are supporting the PLC programmable logic controller (6). The input common terminal 1M and the output common terminal 1L of the PLC programmable logic controller (6) and the digital input / output expansion module (9) are connected to the positive pole of 24V of the first transformer (38). The power supply terminals of the first expansion module (7), the second expansion module (8), and the digital input / output expansion module (9) are connected to the positive and negative poles of 24V of the first transformer. The output terminals of the PLC programmable logic controller (6) are sequentially connected to the 13 ports of the intermediate relays KA0 - KA10. The 14 ports of the intermediate relays KA0 - KA10 are connected to the negative pole of 24V of the first transformer (38). The 5 ports and 8 ports of the intermediate relays KA0 - KA3, KA5 - KA10 are respectively connected to the positive and negative poles of 24V of the first transformer. The 5 ports and 8 ports of the intermediate relay KA4 are connected to 220V alternating current. The first expansion module (7) is connected to a temperature and humidity sensor (10), a smoke sensor (12), and a carbon dioxide sensor (13). The second expansion module (8) is connected to an air quality sensor (11).

2. The integrated intelligent alarm system according to claim 1, characterized in that: On different input terminals of the PLC programmable logic controller (6), there are respectively connected a fire reset button (19), a combustible gas detector (16), a smoke detector (17), a temperature detector (18), an emergency button (20), an infrared pair - beam receiver (25), the NO control terminal of an environmental monitoring switch (21), a fire pump button (22), a ventilation start button (23), and a ventilation stop button (24).

3. The integrated intelligent alarm system according to claim 1 or 2, characterized in that: The first transformer (38) and the PLC programmable logic controller (6) are connected to a 220V alternating current through a first air switch (37).

4. The integrated intelligent alarm system according to claim 2, characterized in that: It also includes a second air switch (39) and a second transformer (40) connected to the second air switch (39). The second air switch (39) is connected to a 220V alternating current and supplies power to the second transformer (40). The combustible gas detector (16), the smoke detector (17), the temperature detector (18), and the infrared pair - beam receiver (25) are all connected to the second transformer (40).

5. The integrated intelligent alarm system according to claim 1, 2 or 4, characterized in that: The output terminals 3 and 4 of the digital input / output expansion module (9) are respectively connected to a green indicator light and a red indicator light.

6. The integrated intelligent alarm system according to claim 5, characterized in that: Fire alarm (32) and fire pump (33) are connected to ports 9 and 12 of intermediate relays KA0 and KA1, respectively. Ports 9 and 12 of intermediate relay KA4 are connected to the L and N terminals of air shower (36), respectively. Ports 9 to 12 of intermediate relays KA5 to KA10 are connected to environmental alarm (35), corridor lighting (27), emergency lighting (28), intelligent lighting A (29), intelligent lighting B (30) and intelligent lighting C (31), respectively.

7. The integrated intelligent alarm system according to claim 6, characterized in that: The DC24+ of the ventilation and smoke exhaust integrated machine (34) is connected to the 9 port of the intermediate relay KA2 and the 12 port of the intermediate relay KA3. The DC- of the ventilation and smoke exhaust integrated machine is connected to the 12 port of the intermediate relay KA2 and the 9 port of the intermediate relay KA3.

8. The integrated intelligent alarm system according to claim 7, characterized in that: The wireless router (2) is connected to the first host computer (3) and the second host computer (4) via a local area network.

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