CN215730128U - Smoke sensor with booster circuit - Google Patents
Smoke sensor with booster circuit Download PDFInfo
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- CN215730128U CN215730128U CN202121849453.3U CN202121849453U CN215730128U CN 215730128 U CN215730128 U CN 215730128U CN 202121849453 U CN202121849453 U CN 202121849453U CN 215730128 U CN215730128 U CN 215730128U
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- chip
- booster circuit
- control chip
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- 239000000779 smoke Substances 0.000 title claims abstract 18
- 238000001514 detection method Methods 0.000 claims abstract 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract 8
- 229910052744 lithium Inorganic materials 0.000 claims abstract 8
- 238000012544 monitoring process Methods 0.000 abstract 1
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Abstract
The utility model relates to a smoke sensor with a booster circuit, which comprises a control chip, a lithium battery, the booster circuit and a smoke detection module, wherein the lithium battery is connected with the control chip through a protection circuit, the input end of the booster circuit is connected with the lithium battery, the output end of the booster circuit is connected with the smoke detection module, and the output end of the smoke detection module is connected with the control chip. According to the utility model, the booster circuit is additionally arranged on the basis of the original system, and the 5V output voltage is transmitted to the smoke detection module after being boosted by the booster chip, so that the use reliability is further improved. The whole smoke detection system is low in voltage and current, power consumption is greatly reduced, and the smoke detection system is more suitable for monitoring low-voltage power stations.
Description
Technical Field
The utility model relates to the technical field of power station house monitoring equipment, in particular to a smoke sensor with a booster circuit.
Background
In recent years, with the increasing use of electric power equipment, the frequency of fire disasters is also increasing, and huge casualties and economic losses are caused each year due to fire safety accidents. When the reason of fire accidents is found out afterwards, many fires start from small-sized fire points which are often difficult to notice, and the problems can be effectively solved by installing smoke sensors.
Smoke sensors achieve fire protection by monitoring the concentration of smoke. At present, most fire fighting scenes adopt an ion type smoke sensor, the ion type smoke sensor can respond to various kinds of smoke in a balanced mode, the ion type smoke sensor is suitable for large-scale open places, but the production cost is high, and the detection capability of the ion type smoke sensor to small indoor smoldering is far inferior to that of a photoelectric smoke sensor.
The utility model considers the use scene, selects the photoelectric smoke sensor, has low price and can be more suitable for places such as power station houses and the like which are easy to generate heavy smoke smoldering. However, the photoelectric smoke sensor on the market at present adopts a high-voltage detection module, so that the photoelectric smoke sensor is high in power consumption and small in applicability, and needs to be provided with a large-capacity battery or a direct power supply for supplying power.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a smoke sensor with a voltage boost circuit to solve the above-mentioned problems encountered in the background art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a smoke sensor with a booster circuit comprises a control chip, a lithium battery, the booster circuit and a smoke detection module, wherein the lithium battery is connected with the control chip through a protection circuit, the input end of the booster circuit is connected with the lithium battery, the output end of the booster circuit is connected with the smoke detection module, and the output end of the smoke detection module is connected with the control chip;
boost circuit includes 3.3V input voltage, the chip that steps up, 5V output voltage, resistance R1 and resistance R2, 3.3V input voltage's input and lithium cell are connected, 3.3V input voltage's output is connected with the input of the chip that steps up, it is connected with inductance L1 to step up between the input of chip and the selection pin, the output and the 5V output voltage of the chip that steps up are connected, 5V output voltage is connected with smog detection module, resistance R1 and resistance R2 establish ties, resistance R1's end connection is at the output of the chip that steps up, resistance R2's end ground, the input of the chip that steps up still is connected with 1.212V reference voltage.
In the above scheme, the controller further comprises a restart key, and the input end of the control chip is connected with the restart key.
In the above scheme, the controller further comprises a wireless communication module, and the output end of the control chip is connected with the wireless communication module.
In the above scheme, the controller further comprises an indicator light and a ferroelectric memory, the control chip is connected with the indicator light, and the ferroelectric memory is in communication connection with the control chip.
In the above scheme, smoke detection module includes infrared transmitting tube, infrared receiving tube and detector, infrared transmitting tube and infrared receiving tube signal connection, the detector respectively with infrared transmitting tube and infrared receiving tube signal connection, the detector is connected with control chip, lithium cell and boost circuit are connected with infrared transmitting tube, infrared receiving tube, detector electricity respectively.
Compared with the prior art, the utility model has the beneficial effects that: through add on original system basis and establish boost circuit, carry 5V output voltage for smog detection module after stepping up through the chip that steps up, use the reliability further to improve. The whole smoke detection system is low in voltage and current, power consumption is greatly reduced, and the smoke detection system is more suitable for monitoring low-voltage power stations. In addition, a wireless communication module is added, so that the wireless communication module has a wireless communication function, can be accessed to an application end of a service platform, and can report the field smoke condition more quickly.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic diagram of the working principle of the present invention;
FIG. 2 is a schematic diagram of the operation of the boost circuit of the present invention;
fig. 3 is a schematic diagram of the working principle of the smoke detection module of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.
According to the technical scheme of the utility model, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the utility model. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, a take smoke sensor of boost circuit, including control chip, lithium cell, boost circuit and smog detection module, the lithium cell passes through protection circuit and is connected with control chip, and control chip adopts the model commonly used on the present sensor to be STM32F 030's control chip, and boost circuit's input is connected with the lithium cell, and boost circuit's output is connected with smog detection module, and smog detection module's output and control chip are connected.
Referring to fig. 2, the Boost circuit includes a 3.3V input voltage, a Boost chip, a 5V output voltage, a resistor R1, and a resistor R2, the Boost chip is a commonly used Boost chip, an input terminal of the 3.3V input voltage is connected to the lithium battery, an output terminal of the 3.3V input voltage is connected to an input terminal of the Boost chip, and an inductor L1 is connected between the input terminal of the Boost chip and the selection pin. In the scheme, the 3.3V input voltage is connected with the input end of the Boost chip and is used as Vin. An inductor L1 is connected between Vin and the select pin to reduce EMI and voltage overshoot, while storing power to smooth the output voltage curve.
The output end of the boosting chip is connected with the 5V output voltage, the 5V output voltage is connected with the smoke detection module, and the 5V output voltage is transmitted to the smoke detection module after being boosted by the boosting chip. The boosting process generated in the boosting chip can be divided into two processes of charging and discharging, in the charging process, a triode in the boosting chip is conducted, the input current flows through an inductor in the chip, the current on the inductor is linearly increased at a certain ratio, and energy is stored; in the discharging process, when the triode in the boost chip is cut off, the current flowing through the inductor is slowly reduced to 0 due to the existence of the inductor in the chip, the output part of the boost chip is charged, the output voltage Vout of the chip is increased, and the boost is finished.
The resistor R1 is connected in series with the resistor R2, the end of the resistor R1 is connected to the output end of the boost chip, the end of the resistor R2 is grounded, and the input end of the boost chip is also connected with a 1.212V reference voltage. Two external resistors R1 and R2 are connected to a boost chip as a feedback part of the whole circuit, and Vout can be regulated to 5V according to the formula Vout being 1.212V [1+ (R1/R2) ].
As a preferable scheme, in the above scheme, the controller further includes a restart key, and the input end of the control chip is connected to the restart key. After the restart key is pressed down, smoke can be detected immediately, and the reliability in use is enhanced.
As a preferable scheme, in the above scheme, the wireless communication module is further included, the output end of the control chip is connected with the wireless communication module through USART protocol transmission, and the wireless communication module is a lora2.4g wireless communication module. Therefore, the smoke sensor has a wireless communication function, when no smoke exists, the smoke sensor can send monitoring data in a wireless communication mode at regular time, and once the smoke is detected, the abnormal condition can be immediately reported to an application terminal.
In the scheme, the intelligent control system further comprises an indicator light and a ferroelectric memory, the control chip is connected with the indicator light, and the ferroelectric memory is in communication connection with the control chip. The working state is displayed through the indicator lamp, and the signal data is transmitted through the ferroelectric memory by adopting an I2C protocol.
In the above scheme, referring to fig. 3, the smoke detection module includes an infrared transmitting tube, an infrared receiving tube and a detector, the infrared transmitting tube is in signal connection with the infrared receiving tube, the detector is in signal connection with the infrared transmitting tube and the infrared receiving tube respectively, the detector is connected with the control chip, and the lithium battery and the voltage boost circuit are electrically connected with the infrared transmitting tube, the infrared receiving tube and the detector respectively. The photoelectric smoke detection principle is that when smoke is sent into a detection window, infrared light flux is influenced by scattering and absorption, an infrared receiving tube senses a strong signal and a weak signal so as to drive a detector, and buzzing alarm is sent out.
In this scheme, through add on original system basis and establish boost circuit, carry 5V output voltage for smog detection module after stepping up through the chip that steps up, use the reliability further to improve. The whole smoke detection system is low in voltage and current, power consumption is greatly reduced, and the smoke detection system is more suitable for monitoring low-voltage power stations. In addition, a wireless communication module is added, so that the wireless communication module has a wireless communication function, can be accessed to an application end of a service platform, and can report the field smoke condition more quickly.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A take boost circuit's smoke transducer which characterized in that: the smoke detection device comprises a control chip, a lithium battery, a booster circuit and a smoke detection module, wherein the lithium battery is connected with the control chip through a protection circuit, the input end of the booster circuit is connected with the lithium battery, the output end of the booster circuit is connected with the smoke detection module, and the output end of the smoke detection module is connected with the control chip;
boost circuit includes 3.3V input voltage, the chip that steps up, 5V output voltage, resistance R1 and resistance R2, 3.3V input voltage's input and lithium cell are connected, 3.3V input voltage's output is connected with the input of the chip that steps up, it is connected with inductance L1 to step up between the input of chip and the selection pin, the output and the 5V output voltage of the chip that steps up are connected, 5V output voltage is connected with smog detection module, resistance R1 and resistance R2 establish ties, resistance R1's end connection is at the output of the chip that steps up, resistance R2's end ground, the input of the chip that steps up still is connected with 1.212V reference voltage.
2. The smoke sensor with booster circuit of claim 1, wherein: the control chip is connected with the input end of the control chip through the reset key.
3. The smoke sensor with booster circuit of claim 1, wherein: the wireless communication control system is characterized by further comprising a wireless communication module, and the output end of the control chip is connected with the wireless communication module.
4. The smoke sensor with booster circuit of claim 1, wherein: the control chip is connected with the indicating lamp, and the ferroelectric memory is in communication connection with the control chip.
5. The smoke sensor with booster circuit of claim 1, wherein: the smoke detection module comprises an infrared transmitting tube, an infrared receiving tube and a detector, the infrared transmitting tube is in signal connection with the infrared receiving tube, the detector is in signal connection with the infrared transmitting tube and the infrared receiving tube respectively, the detector is connected with the control chip, and the lithium battery and the booster circuit are electrically connected with the infrared transmitting tube, the infrared receiving tube and the detector respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121849453.3U CN215730128U (en) | 2021-08-09 | 2021-08-09 | Smoke sensor with booster circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121849453.3U CN215730128U (en) | 2021-08-09 | 2021-08-09 | Smoke sensor with booster circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215730128U true CN215730128U (en) | 2022-02-01 |
Family
ID=79994026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121849453.3U Active CN215730128U (en) | 2021-08-09 | 2021-08-09 | Smoke sensor with booster circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215730128U (en) |
-
2021
- 2021-08-09 CN CN202121849453.3U patent/CN215730128U/en active Active
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