Control device of smoke alarm
By using a controller and switches to output different signals in the smoke alarm control device, the circuit structure is simplified, solving the problem of high cost caused by complex circuits in the prior art, and realizing functional control and cost reduction.
Patent Information
- Application Number
- CN202423225144.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The control circuits of existing smoke alarm management systems are complex and require multiple electronic components, resulting in high manufacturing and maintenance costs.
The smoke alarm's testing, silencing, and location functions are controlled by a controller, a first switch, a second switch, and a third switch, which output different pulse signals and level signals, simplifying the circuit structure.
It enables functional control of smoke detectors, reducing manufacturing and maintenance costs.
Smart Images
Figure CN223638020U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to smoke alarm technology field more specifically relates to a control device of smoke alarm. BACKGROUND
[0002] The smoke alarm control system is composed of a control device and a plurality of smoke alarms, which can detect smoke concentration through the smoke alarm, thereby discovering fire in time and alarming, effectively avoiding fire occurrence and expansion, and is widely used in public places, residential areas and commercial centers and various places, and is an important measure to protect people's life and property safety.
[0003] In the prior art smoke alarm control system, the control device generally controls a plurality of smoke alarms through the output of a direct current voltage by a cable line, and the smoke alarm samples the direct current voltage and performs corresponding tests, silences or positioning operations according to the size of the sampling value. However, this control method requires the control device to adjust the voltage, so the circuit of the control device is complex, more electronic components are required, and the manufacturing and maintenance costs are high. SUMMARY
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a control device of smoke alarm, which can control the smoke alarm to realize test, silence and positioning functions, has a simple circuit structure and low manufacturing and maintenance costs.
[0005] The technical scheme adopted by the utility model to solve its technical problems is: a control device of smoke alarm, comprising a controller, a first switch, a second switch and a third switch; the controller is connected with the first switch, the second switch, the third switch and a communication bus port respectively, and the communication bus port is used for connecting at least one smoke alarm; when the first switch is triggered, the controller outputs a first pulse signal to the communication bus port, and the first pulse signal is used for controlling the smoke alarm to perform a test operation; when the second switch is triggered, the controller outputs a second pulse signal to the communication bus port, and the second pulse signal is used for controlling the smoke alarm to perform a silence operation; when the third switch is triggered, the controller outputs a preset level signal to the communication bus port, and the preset level signal is used for controlling the smoke alarm to perform a positioning operation.
[0006] In a preferred technical scheme, the controller comprises a control chip U1, a triode Q1 and a MOS tube Q2; the seventh pin of the control chip U1 is connected with the first switch, and the fifth pin of the control chip U1 is connected with the communication bus port through the triode Q1 and the MOS tube Q2; when the first switch is triggered, the fifth pin of the control chip U1 outputs the first pulse signal.
[0007] In a preferred technical solution, the fourth pin of the control chip U1 is connected with the second switch; when the second switch is triggered, the fifth pin of the control chip U1 outputs a second pulse signal.
[0008] In a preferred technical solution, the controller further comprises a transistor Q3, a transistor Q4 and a MOS tube Q5; the second pin of the control chip U1 is connected with the third switch, and the sixth pin of the control chip U1 is connected with the communication bus port through the transistor Q3, the transistor Q4 and the MOS tube Q5; when the third switch is triggered, the sixth pin of the control chip U1 outputs a preset level signal.
[0009] In a preferred technical solution, the first switch, the second switch and the third switch are both connected with a capacitor in parallel.
[0010] In a preferred technical solution, the control device of the smoke alarm further comprises a shell and a control panel arranged on the shell, and the controller is arranged in the shell, and the first switch, the second switch and the third switch are arranged on the control panel.
[0011] In a preferred technical solution, the transistor Q1, the transistor Q3 and the transistor Q4 are all NPN type transistors.
[0012] In a preferred technical solution, the MOS tube Q2 is a P-channel MOS tube, and the MOS tube Q5 is an N-channel MOS tube.
[0013] According to the above technical solution, compared with the prior art, the control device of the smoke alarm can output different pulse signals to the communication bus port through the controller, so that the interconnected smoke alarms can realize the functions of testing, muting, positioning and the like, the circuit structure is simple, and the manufacturing and maintenance costs can be effectively reduced.
[0014] In addition, other advantages of the present application will be given in the following description, some of which will become apparent from the following description, or will be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.
[0016] Figure 1 The structure block diagram of the control device of the smoke alarm;
[0017] Figure 2A circuit diagram for a control device of a smoke alarm. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0019] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0020] Referring to Figures 1-2 A control device of a smoke alarm according to an embodiment of the present application is described.
[0021] In one embodiment, as Figure 1 shown, a control device of a smoke alarm includes a controller 100, a first switch SW1, a second switch SW2 and a third switch SW3; the controller 100 is connected to the first switch SW1, the second switch SW2, the third switch SW3 and a communication bus port respectively, and the communication bus port is used to connect at least one smoke alarm.
[0022] When the first switch SW1 is triggered, the controller 100 outputs a first pulse signal to the communication bus port, and the first pulse signal is used to control the smoke alarm to perform a test operation;
[0023] When the second switch SW2 is triggered, the controller 100 outputs a second pulse signal to the communication bus port, and the second pulse signal is used to control the smoke alarm to perform a mute operation;
[0024] When the third switch SW3 is triggered, the controller 100 outputs a preset level signal to the communication bus port, and the preset level signal is used to control the smoke alarm to perform a positioning operation.
[0025] The communication bus port is used for connecting an IC bus (Inter-Integrated Circuit Bus) to transmit a pulse signal, and the communication bus port is an IC port shown in Figure 2
[0026] In actual application, the control device can be installed on a wall or other position which is convenient for a user to control; the first switch SW1, the second switch SW2 and the third switch SW3 can be a button, a knob or a touch key.
[0027] The control device of the smoke alarm provided by the above embodiment can output different pulse signals to the communication bus port through the controller 100 when the first switch SW1, the second switch SW2 or the third switch SW3 is triggered, so as to control the interconnected smoke alarms to realize the functions of testing, muting, positioning and the like, and the circuit structure is simple, which can effectively reduce the manufacturing and maintenance costs.
[0028] In the embodiment, as shown in Figure 2 The controller 100 includes a control chip U1, a transistor Q1 and a MOS tube Q2; the seventh pin of the control chip U1 is connected with the first switch SW1, and the fifth pin of the control chip U1 is connected with the communication bus port through the transistor Q1 and the MOS tube Q2.
[0029] When the first switch SW1 is triggered, the fifth pin of the control chip U1 outputs a first pulse signal.
[0030] The seventh pin of the control chip U1 is connected with one end of the first switch SW1, and the other end of the first switch SW1 is grounded; the fifth pin of the control chip U1 is connected with the base of the transistor Q1 through the resistor R7, and the base of the transistor Q1 is grounded through the resistor R8; the emitter of the transistor Q1 is grounded; the collector of the transistor Q1 is connected with one end of the resistor R9 and the gate of the MOS tube Q2, the source of the MOS tube Q2 is connected with the other end of the resistor R9 and connected with a 12V voltage terminal through the resistor R1, and the drain of the MOS tube Q2 is connected with the IC port through the resistor R10, and the IC port is grounded through the resistor R11.
[0031] The working process of the control device to realize the testing function of the smoke alarm is as follows: when the first switch SW1 is triggered, the fifth pin of the control chip U1 outputs a first pulse signal, and the first pulse signal can be a continuous pulse signal, for example, a continuous pulse signal with a high level of 300 ms and a low level of 300 ms; the first pulse signal passes through the transistor Q1 and the MOS tube Q2 to the IC port, and when the first pulse signal is received by the smoke alarm connected with the IC port, the smoke alarm starts to perform a testing operation until the first switch SW1 is turned off.
[0032] In the embodiment, the fourth pin of the control chip U1 is connected with the second switch SW2;
[0033] When the second switch SW2 is triggered, the fifth pin of the control chip U1 outputs a second pulse signal.
[0034] The fourth pin of the control chip U1 is connected with one end of the second switch SW2, and the other end of the second switch SW2 is grounded.
[0035] The working process of the control device to realize the mute function of the smoke alarm is as follows: when the second switch SW2 is triggered, the fifth pin of the control chip U1 outputs a second pulse signal, which can be a pulse signal with a preset time length, for example, the fifth pin of the control chip U1 outputs a continuous pulse signal with a high level of 16s, a low level of 1s and a low level of 1s. The second pulse signal passes through the triode Q1, the MOS tube Q2 to the IC port. When the smoke alarm connected with the IC port receives the second pulse signal, it starts to execute the mute, thereby realizing the mute function of the smoke alarm.
[0036] In the embodiment, the controller 100 further comprises a triode Q3, a triode Q4 and a MOS tube Q5;
[0037] The second pin of the control chip U1 is connected with the third switch SW3, and the sixth pin of the control chip U1 is connected with the communication bus port through the triode Q3, the triode Q4 and the MOS tube Q5.
[0038] When the third switch SW3 is triggered, the sixth pin of the control chip U1 outputs a preset level signal.
[0039] The second pin of the control chip U1 is connected with one end of the third switch SW3, and the other end of the third switch SW3 is grounded. The sixth pin of the control chip U1 is connected with the base of the triode Q3 through the resistor R12, and the base of the triode Q3 is grounded through the resistor R13. The collector of the triode Q3 is connected with the base of the triode Q4, and the collector of the triode Q3 is connected with the 12V voltage end through the resistor R14. The collector of the triode Q4 is connected with the 12V voltage end through the resistor R15, and the collector of the triode Q4 is also connected with the gate of the MOS tube Q5. The drain of the MOS tube Q2 is connected with the IC port through the resistor R16. The emitter of the triode Q3, the emitter of the triode Q4 and the source of the MOS tube Q5 are all grounded.
[0040] The working process of the control device for realizing the positioning function of the smoke alarm is as follows: when the third switch SW3 is triggered, the sixth pin of the control chip U1 outputs a preset level signal, which can be a high level signal with a preset time length, for example, a high level signal with a time length of 5 minutes. The high level signal passes through the triode Q3, the triode Q4 and the MOS tube Q5, so that the MOS tube Q5 is in a conducting state, and all signals of the IC port can be short-circuited to the ground, thereby realizing the positioning function of the smoke alarm.
[0041] In the embodiment, the first switch SW1, the second switch SW2 and the third switch SW3 are both connected in parallel with a capacitor.
[0042] The first switch SW1 is connected in parallel with a capacitor C15, the second switch SW2 is connected in parallel with a capacitor C12, and the third switch SW3 is connected in parallel with a capacitor C11. The capacitor C15, the capacitor C12 and the capacitor C11 are respectively used for buffer protection of the first switch SW1, the second switch SW2 and the third switch SW3.
[0043] In the above embodiments, the first pin of the control chip U1 is connected with a 3.3V voltage end and grounded through a capacitor C13, the eighth pin is grounded, and the capacitor C14 is connected between the first pin and the eighth pin; the third pin of the control chip U1 is connected with the anode of the light-emitting diode D5 through a resistor R6, and the cathode of the light-emitting diode D5 is grounded.
[0044] In the embodiment, the control device of the smoke alarm further comprises a shell and a control panel arranged on the shell, and the controller 100 is arranged in the shell, and the first switch SW1, the second switch SW2 and the third switch SW3 are arranged on the control panel.
[0045] In the embodiment, the triode Q1, the triode Q3 and the triode Q4 are all NPN type triodes.
[0046] In the embodiment, the MOS tube Q2 is a P-channel MOS tube, and the MOS tube Q5 is an N-channel MOS tube.
[0047] Other configurations and operations of the control device of the smoke alarm according to the embodiment of the utility model are known to those skilled in the art, and will not be described in detail here.
[0048] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two elements inside the communication.For ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0049] In the description of the present specification, the description of the terms "embodiment", "specific embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model.
[0050] In the present specification, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interfering or contradicting.
Claims
1. A control arrangement for a smoke alarm, characterised in that: The controller, the first switch, the second switch and the third switch are included. The controller is connected with the first switch, the second switch, the third switch and a communication bus port respectively, and the communication bus port is used for connecting at least one smoke alarm. When the first switch is triggered, the controller outputs a first pulse signal to the communication bus port, and the first pulse signal is used for controlling the smoke alarm to perform a test operation. When the second switch is triggered, the controller outputs a second pulse signal to the communication bus port, and the second pulse signal is used for controlling the smoke alarm to perform a mute operation. When the third switch is triggered, the controller outputs a preset level signal to the communication bus port, and the preset level signal is used for controlling the smoke alarm to perform a positioning operation.
2. A control arrangement for a smoke alarm according to claim 1, characterised in that: The controller includes a control chip U1, a transistor Q1 and a MOS tube Q2. The seventh pin of the control chip U1 is connected with the first switch, and the fifth pin of the control chip U1 is connected with the communication bus port through the transistor Q1 and the MOS tube Q2. When the first switch is triggered, the fifth pin of the control chip U1 outputs the first pulse signal.
3. A control arrangement for a smoke alarm according to claim 2, wherein: The fourth pin of the control chip U1 is connected with the second switch. When the second switch is triggered, the fifth pin of the control chip U1 outputs the second pulse signal.
4. A control arrangement for a smoke alarm according to claim 3, wherein: The controller further includes a transistor Q3, a transistor Q4 and a MOS tube Q5. The second pin of the control chip U1 is connected with the third switch, and the sixth pin of the control chip U1 is connected with the communication bus port through the transistor Q3, the transistor Q4 and the MOS tube Q5. When the third switch is triggered, the sixth pin of the control chip U1 outputs the preset level signal.
5. A control arrangement for a smoke alarm according to claim 4, wherein: Capacitors are connected in parallel at both ends of the first switch, the second switch and the third switch.
6. A control arrangement for a smoke alarm according to any one of claims 1 to 5, wherein: A shell and a control panel arranged on the shell are further included, the controller is arranged in the shell, and the first switch, the second switch and the third switch are arranged on the control panel.
7. A control for a smoke alarm according to claim 4 wherein: The transistor Q1, the transistor Q3 and the transistor Q4 are NPN type transistors.
8. A control arrangement for a smoke alarm according to claim 7, wherein: The MOS tube Q2 is a P-channel MOS tube, and the MOS tube Q5 is an N-channel MOS tube.