CN215264419U - Automatic detection control circuit and device are felt to cigarette based on digital time sequence control - Google Patents

Abstract

The utility model discloses an automatic detection control circuit and device are felt to cigarette based on digital time sequence control, an automatic detection control circuit is felt to cigarette based on digital time sequence control includes: the smoke detection automatic detection digital sub-circuit and the smoke detection automatic detection analog sub-circuit are connected with the smoke detection automatic detection analog sub-circuit; the smoke detection automatic digital sub-circuit comprises a smoke detection controller, a CPU unit, a timer unit, a counter unit and a threshold judgment unit; the CPU unit, the timer unit, the counter unit and the threshold judging unit are respectively electrically connected with the smoke detection controller; the smoke detection automatic detection analog sub-circuit is electrically connected with the smoke detection controller. The utility model discloses a digital circuit control smoke feels's work chronogenesis has low power dissipation, control accuracy, efficient and the high advantage of reliability.

Description

Automatic detection control circuit and device are felt to cigarette based on digital time sequence control

Technical Field

The utility model relates to a fire control technical field especially relates to an automatic detection control circuit and device are felt to cigarette based on digital time sequence control.

Background

Because of rapid development of photoelectronic technology, lower and lower manufacturing cost and convenient production and installation, the market share of the photoelectric induction type smoke detector is larger and larger, and the photoelectric induction type smoke detector is basically adopted in the market. As an important device for fire protection, the photoelectric sensing detector has the characteristics of high precision, long service life due to low power consumption and the like.

The main realization principle of the photoelectric induction detector is as follows: photoelectric sensing detector master control MCU is through controlling infrared LED transmitted light to the optics maze, then if there is smog to exist in the maze, photodiode will have weak current, and weak current passes through behind the photodiode sensor and converts through inside ADC, and MCU obtains inside ADC conversion data, judges through data processing whether the smog detected value exceeds the alarm threshold value, and then sends audible alarm through bee calling organ. In the prior art, a main control MCU (microprogrammed control unit) mainly starts a power supply and a boosting enable required by smoke detection through a software program, a step needs special time sequence operation, then controls the length of the infrared LED starting enable, performs ADC (analog to digital converter) sampling conversion at the highest point of a waveform output by a PDSNESOR (PDSENSOR) detection module, similarly starts ADC sampling by the MCU software program, waits for the completion of ADC conversion, finally judges whether ADC conversion data exceeds a set threshold value to realize smoke alarm, and waits for the next detection when the power supply required by the detection is closed by the software program. The smoke detection mode of the hardware ADC matched by the software program has low efficiency and low reliability, and meanwhile, the control of power supply starting, the starting of the boosting module, the starting of the infrared LED and the starting of the ADC are realized by the software program, so that the configuration is complicated; meanwhile, the smoke detection needs a special time sequence to be realized, so that the power consumption of the whole smoke detection system is larger due to inaccuracy, and the photoelectric smoke detection system is extremely sensitive to the power consumption of a photoelectric smoke detection product using a battery. Therefore, the invention provides a smoke detection automatic control circuit based on digital time sequence control, which has low power consumption and is accurate and reliable, and the problem to be solved by technical personnel in the field is urgently solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide an automatic detection control circuit is felt to cigarette based on digital sequential control.

In a first aspect, the utility model discloses a smoke detection automation control circuit based on digital time sequence control, which comprises a smoke detection automation digital sub-circuit and a smoke detection automation analog sub-circuit; the smoke detection automatic digital sub-circuit comprises a smoke detection controller, a CPU unit, a timer unit, a counter unit and a threshold judgment unit; the CPU unit, the timer unit, the counter unit and the threshold judging unit are respectively electrically connected with the smoke detection controller; the smoke detection automatic detection analog sub-circuit is electrically connected with the smoke detection controller.

Preferably, the smoke detection automation detection analog sub-circuit comprises a power module, a boosting module, an infrared LED module, a photoelectric sensor and a digital-to-analog conversion module; the power module, the boosting module, the infrared LED module, the photoelectric sensor and the digital-to-analog conversion module are respectively and electrically connected with the smoke detection controller.

Preferably, the TIMER unit includes a first register, a TIMER, and a first comparator; the first end of the TIMER TIMER and the first end of the first register are electrically connected with the smoke detection controller, the second end of the TIMER TIMER is electrically connected with the first end of the first comparator, the second end of the first register is electrically connected with the second end of the first comparator, and the third end of the first comparator is electrically connected with the counter unit.

Preferably, the counter unit comprises a counter, a power module starting sub-unit, a boosting module starting sub-unit, an infrared LED module starting sub-unit, a photoelectric sensor starting sub-unit, a digital-to-analog conversion module starting sub-unit and an ADC numerical value latching sub-unit; the power module promoter unit, the boosting module promoter unit, the infrared LED module promoter unit, the photoelectric sensor promoter unit, the digital-to-analog conversion module promoter unit and the ADC numerical value latch subunit are respectively electrically connected with the counter, and the power module promoter unit, the boosting module promoter unit, the infrared LED module promoter unit, the photoelectric sensor promoter unit, the digital-to-analog conversion module promoter unit and the ADC numerical value latch subunit are respectively electrically connected with the smoke detection automatic detection analog sub-circuit.

Preferably, the threshold value judging unit includes a register unit, an accumulation averager, a second comparator, a logic device, a second register and a third register; the register unit is electrically connected with the smoke detection automatic simulation sub-circuit, the register unit is electrically connected with a first end of the accumulation averager, a second end of the accumulation averager is electrically connected with a first end of the second comparator, a second end of the second comparator is electrically connected with a first end of the third register, a second end of the third register is electrically connected with the smoke detection controller, a third end of the second comparator is electrically connected with a first end of the logic device, a second end of the logic device is electrically connected with a first end of the second register, and a second end of the second register is electrically connected with the smoke detection controller.

Preferably, the power module starting subunit comprises a third comparator and a fourth register; the first end of the third comparator is electrically connected with the counter, the second end of the third comparator is electrically connected with the first end of the fourth register, and the second end of the fourth register is electrically connected with the power supply module.

Preferably, the boost module starting subunit comprises a fourth comparator and a fifth register; the first end of the fourth comparator is electrically connected with the counter, the second end of the fourth comparator is electrically connected with the first end of the fifth register, and the second end of the fifth register is electrically connected with the boosting module.

Preferably, the photosensor sub-subunit includes a fifth comparator and a sixth register; the first end of the fifth comparator is electrically connected with the counter, the second end of the fifth comparator is electrically connected with the first end of the sixth register, and the second end of the sixth register is electrically connected with the photoelectric sensor.

Preferably, the ADC numerical value latch subunit includes a sixth comparator and a seventh register; a first end of the sixth comparator is electrically connected to the counter, a second end of the sixth comparator is electrically connected to a first end of the seventh register, and a second end of the seventh register is electrically connected to the threshold determination unit.

The second aspect, the utility model also discloses an automatic detection device is felt to cigarette based on digital time sequence control, including the first aspect an automatic detection circuitry is felt to cigarette based on digital time sequence control.

The utility model discloses an automatic detection control circuit is felt to cigarette based on digital time sequence control has following beneficial effect, the utility model discloses an automatic detection control circuit is felt to cigarette based on digital time sequence control includes: the smoke detection automatic detection digital sub-circuit and the smoke detection automatic detection analog sub-circuit are connected with the smoke detection automatic detection analog sub-circuit; the smoke detection automatic digital sub-circuit comprises a smoke detection controller, a CPU unit, a timer unit, a counter unit and a threshold judgment unit; the CPU unit, the timer unit, the counter unit and the threshold judging unit are respectively electrically connected with the smoke detection controller; the smoke detection automatic detection analog sub-circuit is electrically connected with the smoke detection controller. The timer unit is used for providing automatic starting enable, and generating pulses when reaching a preset value according to a timing value configured in the timer unit so as to start an automatic smoke detection program; the timer unit is used for providing accurate time sequence control for the smoke detection controller and the CPU unit, and the time sequence control is accurate to the minimum period of a system clock; after the timer unit is started by giving a pulse, the functional modules of the smoke sensation automatic detection analog sub-circuit are sequentially started according to a specific state jump, and digital signals of the functional modules of the smoke sensation automatic detection analog sub-circuit are received; the threshold value judging unit is used for carrying out averaging processing on the digital signals, judging whether the averaged digital signal smoke value exceeds an alarm value or not, awakening the system when the averaged digital signal smoke value exceeds the alarm value, exiting from a low power consumption mode, and carrying out subsequent alarm operation. Therefore, the utility model discloses can feel the work chronogenesis through the accurate control cigarette of digital circuit, rate of accuracy and stability are high for software code control chronogenesis, have low power dissipation, control accuracy, efficient and the high advantage of reliability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:

fig. 1 is a schematic block diagram of an automatic smoke detection control circuit based on digital time sequence control according to a preferred embodiment of the present invention;

fig. 2 is a schematic block diagram of a switch control module of the smoke detection automatic detection control circuit based on digital time sequence control according to another preferred embodiment of the present invention;

fig. 3 is a schematic circuit diagram of an automatic smoke detection control circuit based on digital time sequence control according to a preferred embodiment of the present invention;

fig. 4 is a pulse logic diagram of an automatic smoke detection control circuit based on digital time sequence control according to a preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

Fig. 1 shows a preferred embodiment of the present invention, which includes a digital sub-circuit 1 for automatically detecting smoke sensation and an analog sub-circuit 2 for automatically detecting smoke sensation; the digital sub-circuit 1 for automatically detecting the smoke sensation comprises a smoke sensation detection controller 11, a CPU unit 12, a timer unit 13, a counter unit 14 and a threshold value judging unit 15; the CPU unit 12, the timer unit 13, the counter unit 14, and the threshold value determination unit 15 are electrically connected to the smoke detection controller 11 unit, respectively; the smoke detection automation detection simulation sub-circuit 2 is electrically connected with the smoke detection controller 11. Therefore, the utility model discloses a digital circuit control smoke feels's work chronogenesis has low power dissipation, control accuracy, efficient and the high advantage of reliability.

Preferably, in this embodiment, the timer unit 13 is configured to provide an automatic start enable, and generate a pulse when a preset value is reached according to an internally configured timing value, so as to start an automatic smoke detection procedure; the timer unit 13 is used for providing accurate time sequence control for the smoke detection controller and the CPU unit, and the time sequence control is accurate to the minimum period of a system clock; after the timer unit 13 is started by giving a pulse, the functional modules of the analog sub-circuit 2 for automatically detecting smoke sensation are sequentially started according to a specific state jump, and digital signals of the functional modules of the analog sub-circuit 2 for automatically detecting smoke sensation are received; the threshold value judging unit 15 is configured to average the digital signal, judge whether the averaged digital signal smoke value exceeds an alarm value, wake up the system when the averaged digital signal smoke value exceeds the alarm value, exit from the low power consumption mode, and perform a subsequent alarm operation. Therefore, the utility model discloses can feel the work chronogenesis through the accurate control cigarette of digital circuit, rate of accuracy and stability are high for software code control chronogenesis, have low power dissipation, control accuracy, efficient and the high advantage of reliability.

Preferably, referring to fig. 2, the analog sub-circuit 2 for automatic smoke detection includes a power module 21, a voltage boosting module 22, an infrared LED module 23, a photoelectric sensor 24, and a digital-to-analog conversion module 25; the power module 21, the boosting module 22, the infrared LED module 23, the photoelectric sensor 24 and the digital-to-analog conversion module 25 are electrically connected to the smoke detection controller 11, respectively.

Preferably, referring to fig. 2 and fig. 4, the timing control logic of the present invention is: the CPU unit 12 configures the timer unit 13 through the smoke detection controller 11, sets the pulse generation time of the timer unit 13, and realizes the timed starting of the smoke detection automatic detection digital sub-circuit 1; after the timer unit 13 starts the smoke detection automatic digital sub-circuit 1, the smoke detection controller 11 jumps to the on state of the power module 21, and the digital circuit automatically turns on the enable of the power module 21 to supply power to the boost module 22, the photoelectric sensor 24, the digital-to-analog converter module 25 and the infrared LED module 23; the smoke detection controller 11 jumps to a state to wait for the power module 21 to finish starting; the smoke detection controller 11 jumps to a state, and the boosting module 22 is started, wherein the boosting module 22 is used for providing high voltage of more than 8V for the infrared LED module 23; the smoke detection controller 11 jumps to a state to wait for the boosting module 22 to finish starting; the smoke detection controller 11 switches to the state, and the photoelectric sensor 24 is turned on to convert the optical signal of the infrared LED module 23 into a voltage value for quantization; the smoke detector controller 11 switches to a state, and the digital-to-analog conversion module 25 is turned on to convert the analog voltage signal of the photoelectric sensor 24 into a quantized digital signal, and then outputs the quantized digital signal to the smoke detector automatic detection digital sub-circuit 1 for threshold comparison; the smoke detection controller 11 jumps to a state and waits for the completion of the start of the ADC; the smoke detection controller 11 is in a skipping state, the infrared LED module 23 is started to emit infrared light, the infrared light passes through the optical maze, if smoke exists, the light is refracted, the photodiode generates current, and the photoelectric detection module generates waveforms; the ADC conversion value reflects the representative value of the current smoke concentration; the smoke detection controller 11 jumps to a state and starts ADC conversion; the smoke detection controller 11 jumps to a state, waits for the completion of ADC conversion, locks the current ADC conversion value, and latches data that infrared LED emitted light is refracted to a photodiode through an optical labyrinth to generate current, and then is converted into a voltage signal through the photoelectric sensor module, and analog signal voltage is converted into a digital signal through a digital-to-analog converter ADC; the smoke detection controller 11 jumps to a state: the ADC conversion value is transmitted to the threshold value judging unit, the threshold value judging unit averages the ADC conversion values which are continuously obtained for multiple times, and then the ADC conversion values are judged according to a preset threshold value; if the average value of the ADC conversion values exceeds a preset threshold value, an overflow pulse is generated; when the smoke detection controller 11 detects the overflow pulse delivered by the threshold judger, an overflow interrupt signal is generated, then the low-power-consumption working mode of the chip is awakened, and further the CPU software program starts the subsequent operation of alarming.

Preferably, referring to fig. 3, the TIMER unit 13 includes a first register 131, a TIMER 132 and a first comparator 133; a first end of the TIMER 132 and a first end of the first register 131 are electrically connected to the smoke detection controller 11, a second end of the TIMER 132 is electrically connected to a first end of the first comparator 133, a second end of the first register 131 is electrically connected to a second end of the first comparator 133, and a third end of the first comparator 133 is electrically connected to the counter unit 14.

Preferably, the counter unit 14 includes a counter 141, a power module starting subunit 142, a boost module starting subunit 143, an infrared LED module starting subunit 145, a photosensor starting subunit 144, a digital-to-analog conversion module starting subunit 146, and an ADC numerical value latch subunit 147; the power module promoter unit 142, the boost module promoter unit 143, the infrared LED module promoter unit 145, the photosensor promoter unit 144, the digital-to-analog conversion module promoter unit 146, and the ADC numerical value latch subunit 147 are electrically connected to the counter 141, respectively, and the power module promoter unit 142, the boost module promoter unit 143, the infrared LED module promoter unit 145, the photosensor promoter unit 144, the digital-to-analog conversion module promoter unit 146, and the ADC numerical value latch subunit 147 are electrically connected to the smoke sensation automated detection analog sub-circuit 2, respectively.

Preferably, the threshold judging unit 15 includes a register unit 151, an accumulation averager 152, a second comparator 153, a logic 154, a second register 155 and a third register 156; the register unit 151 is electrically connected to the smoke detection automation detection analog sub-circuit 2, the register unit 151 is electrically connected to a first end of the cumulative averager 152, a second end of the cumulative averager 152 is electrically connected to a first end of the second comparator 153, a second end of the second comparator 153 is electrically connected to a first end of the third register 156, a second end of the third register 156 is electrically connected to the smoke detection controller 11, a third end of the second comparator 153 is electrically connected to a first end of the logic device 154, a second end of the logic device 154 is electrically connected to a first end of the second register 155, and a second end of the second register 155 is electrically connected to the smoke detection controller 11.

Preferably, the power module starting subunit 142 includes a third comparator 142a and a fourth register 142 b; a first terminal of the third comparator 142a is electrically connected to the counter 141, a second terminal of the third comparator 142a is electrically connected to a first terminal of the fourth register 142b, and a second terminal of the fourth register 142b is electrically connected to the power module 21.

Preferably, the boosting module sub-unit 143 includes a fourth comparator 143a and a fifth register b; a first end of the fourth comparator 143a is electrically connected to the counter 141, a second end of the fourth comparator 143a is electrically connected to a first end of the fifth register b, and a second end of the fifth register b is electrically connected to the boost module 22.

Preferably, the photosensor sub-unit 144 includes a fifth comparator 144a and a sixth register 144 b; a first terminal of the fifth comparator 144a is electrically connected to the counter 141, a second terminal of the fifth comparator 144a is electrically connected to a first terminal of the sixth register 144b, and a second terminal of the sixth register 144b is electrically connected to the photosensor 24.

Preferably, the ADC numerical value latch sub-unit 147 includes a sixth comparator 147a and a seventh register 147 b; a first end of the sixth comparator 147a is electrically connected to the counter 141, a second end of the sixth comparator 147a is electrically connected to a first end of the seventh register 147b, and a second end of the seventh register 147b is electrically connected to the threshold value determining unit 15.

Preferably, in this embodiment, the TIMER is used to implement a timed triggered smoke detection function; the smoke detection controller 11 starts the TIMER 132, and the TIMER 132 operates; when the TIMER TIMER 132 works to a set time, generating a pulse to trigger the smoke detection automation function; the smoke detection controller 11 constructs a time sequence control under the action of the counter 141, and the time sequence control is obtained by comparing a plurality of comparators with counting values; then, the corresponding enabling of a plurality of modules in the smoke detection automatic detection analog sub-circuit is latched in each register, and signals in the registers are directly sent to the smoke detection automatic detection analog sub-circuit 2 to control the smoke detection automatic detection analog sub-circuit to start the corresponding modules; under the time sequence control, after the enable of the digital-to-analog conversion module 25 is triggered, counting to a certain value, and skipping to the time sequence of latching the ADC numerical value; at this time, adc _ data fed back by the analog sub-circuit 2 for automatic detection of smoke sensation is latched in the data register of the register unit 151 under latch enable. The smoke detection controller 11 continuously shifts and locks the adc _ data in the corresponding data register according to the sampling times; the accumulating averager 152 accumulates adc _ data to obtain an average value, and then the third register compares the average value to obtain whether the data detected by the smoke sensation exceeds a threshold value; the threshold determination signals of the second comparator 153 and the logic device 154 are fed back to the smoke detection controller 11, and the smoke detection controller 11 latches the threshold determination signals, outputs a low power consumption mode wake-up signal, and feeds back the low power consumption mode wake-up signal to the CPU unit 12 for performing corresponding operations; the CPU unit 12 wakes up according to the low power mode signal and then operates the subsequent alarm in the software program.

Preferably, the digital sub-circuit 1 for automatically detecting smoke sensation of the present embodiment comprises a 16bits timer, a 10bits counter, a plurality of registers, a plurality of mux selectors and combinational logic. The smoke detector automatically detects the state of the digital sub-circuit control time sequence, and the clock strictly controls the time sequence driving, so that the method is convenient and accurate, the accuracy is high, and the overall power consumption of the system is low; meanwhile, threshold comparison is carried out by sampling and averaging for multiple times through a digital circuit and then automatic comparison is carried out, data processing is fast, data processing and judgment reliability is high, a mechanism that the smoke detection system can work in a low power consumption mode is realized, and only judgment threshold overflow can be awakened.

Preferably, the utility model discloses open according to accurate chronogenesis, digital circuit can judge whether the value of the photodiode sensor of ADC conversion exceeds the threshold value of establishing simultaneously, and then whether the selection arouses CPU unit 12 withdraws from the low power consumption mode, if do not exceed the threshold value, smoke and feel automatic detection digital sub-circuit 1 basis timer unit 13 whether reaches the time of establishing and then triggers automatic smoke again and feels the detection flow, constantly repeats this step, and excessive until really taking place smog concentration, the photodiode sensor data that the ADC gathered surpass the threshold value of establishing, just can arouse CPU and withdraw from the low power consumption mode, carry out subsequent alarm system operation.

Example two

The utility model also discloses an automatic detection device is felt to cigarette based on digital time sequence control, including embodiment one an automatic detection control circuit is felt to cigarette based on digital time sequence control.

To sum up, the automatic detection control circuit for smoke detection based on digital time sequence control provided by the utility model comprises a digital sub-circuit 1 for automatic detection of smoke detection and an analog sub-circuit 2 for automatic detection of smoke detection; the digital sub-circuit 1 for automatically detecting the smoke sensation comprises a smoke sensation detection controller 11, a CPU unit 12, a timer unit 13, a counter unit 14 and a threshold value judging unit 15; the CPU unit 12, the timer unit 13, the counter unit 14, and the threshold value determination unit 15 are electrically connected to the smoke detection controller 11 unit, respectively; the smoke detection automation detection simulation sub-circuit 2 is electrically connected with the smoke detection controller 11. The timer unit 13 is used for providing automatic start-up enabling, and generating pulses when reaching a preset value according to an internally configured timing value so as to start an automatic smoke detection program; the timer unit 13 is used for providing accurate time sequence control for the smoke detection controller and the CPU unit, and the time sequence control is accurate to the minimum period of a system clock; after the timer unit 13 is started by giving a pulse, the functional modules of the analog sub-circuit 2 for automatically detecting smoke sensation are sequentially started according to a specific state jump, and digital signals of the functional modules of the analog sub-circuit 2 for automatically detecting smoke sensation are received; the threshold value judging unit 15 is configured to average the digital signal, judge whether the averaged digital signal smoke value exceeds an alarm value, wake up the system when the averaged digital signal smoke value exceeds the alarm value, exit from the low power consumption mode, and perform a subsequent alarm operation. Therefore, the utility model discloses can feel the work chronogenesis through the accurate control cigarette of digital circuit, rate of accuracy and stability are high for software code control chronogenesis, have low power dissipation, control accuracy, efficient and the high advantage of reliability.

The above detailed description is made on the smoke detection automatic control circuit based on digital time sequence control, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, to the general technical personnel in this field, according to the utility model discloses an idea, all can have the change part on concrete implementation and application scope, to sum up, this description content only is the utility model discloses an embodiment, does not consequently restrict the utility model discloses a patent scope, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing did, or directly or indirectly use in other relevant technical fields, all the same reason is included in the utility model discloses a patent protection scope. And should not be construed as limiting the invention.

Claims (10)

1. A smoke detection automatic control circuit based on digital time sequence control is characterized by comprising a smoke detection automatic digital sub-circuit and a smoke detection automatic analog sub-circuit; the smoke detection automatic digital sub-circuit comprises a smoke detection controller, a CPU unit, a timer unit, a counter unit and a threshold judgment unit; the CPU unit, the timer unit, the counter unit and the threshold judging unit are respectively electrically connected with the smoke detection controller; the smoke detection automatic detection analog sub-circuit is electrically connected with the smoke detection controller.

2. The automatic detection control circuit of smoke sensation based on digital time sequence control of claim 1, characterized in that, the automatic detection analog sub-circuit of smoke sensation comprises a power module, a boost module, an infrared LED module, a photoelectric sensor and a digital-to-analog conversion module; the power module, the boosting module, the infrared LED module, the photoelectric sensor and the digital-to-analog conversion module are respectively and electrically connected with the smoke detection controller.

3. The automatic smoke detection control circuit based on digital time sequence control is characterized in that the TIMER unit comprises a first register, a TIMER TIMER and a first comparator; the first end of the TIMER TIMER and the first end of the first register are electrically connected with the smoke detection controller, the second end of the TIMER TIMER is electrically connected with the first end of the first comparator, the second end of the first register is electrically connected with the second end of the first comparator, and the third end of the first comparator is electrically connected with the counter unit.

4. The automatic detection control circuit based on digital time sequence control for smoke sensation is characterized in that the counter unit comprises a counter, a power module promoter unit, a boost module promoter unit, an infrared LED module promoter unit, a photoelectric sensor promoter unit, a digital-to-analog conversion module promoter unit and an ADC (analog-to-digital converter) numerical value latch subunit; the power module promoter unit, the boosting module promoter unit, the infrared LED module promoter unit, the photoelectric sensor promoter unit, the digital-to-analog conversion module promoter unit and the ADC numerical value latch subunit are respectively electrically connected with the counter, and the power module promoter unit, the boosting module promoter unit, the infrared LED module promoter unit, the photoelectric sensor promoter unit, the digital-to-analog conversion module promoter unit and the ADC numerical value latch subunit are respectively electrically connected with the smoke detection automatic detection analog sub-circuit.

5. The automatic smoke detection control circuit based on digital time sequence control is characterized in that the threshold judgment unit comprises a register unit, an accumulation averager, a second comparator, a logic device, a second register and a third register; the register unit is electrically connected with the smoke detection automatic simulation sub-circuit, the register unit is electrically connected with a first end of the accumulation averager, a second end of the accumulation averager is electrically connected with a first end of the second comparator, a second end of the second comparator is electrically connected with a first end of the third register, a second end of the third register is electrically connected with the smoke detection controller, a third end of the second comparator is electrically connected with a first end of the logic device, a second end of the logic device is electrically connected with a first end of the second register, and a second end of the second register is electrically connected with the smoke detection controller.

6. The automatic detection control circuit based on digital time sequence control for smoke detection according to claim 4, wherein the power module starting subunit comprises a third comparator and a fourth register; the first end of the third comparator is electrically connected with the counter, the second end of the third comparator is electrically connected with the first end of the fourth register, and the second end of the fourth register is electrically connected with the power supply module.

7. The automatic smoke detection control circuit based on digital time sequence control is characterized in that the boosting module starting subunit comprises a fourth comparator and a fifth register; the first end of the fourth comparator is electrically connected with the counter, the second end of the fourth comparator is electrically connected with the first end of the fifth register, and the second end of the fifth register is electrically connected with the boosting module.

8. The automatic detection control circuit of smoke sensation based on digital time sequence control of claim 4, wherein the photosensor sub-subunit comprises a fifth comparator and a sixth register; the first end of the fifth comparator is electrically connected with the counter, the second end of the fifth comparator is electrically connected with the first end of the sixth register, and the second end of the sixth register is electrically connected with the photoelectric sensor.

9. The automatic smoke detection control circuit based on digital time sequence control is characterized in that the ADC numerical value latch subunit comprises a sixth comparator and a seventh register; a first end of the sixth comparator is electrically connected to the counter, a second end of the sixth comparator is electrically connected to a first end of the seventh register, and a second end of the seventh register is electrically connected to the threshold determination unit.

10. An automatic smoke detection device based on digital time sequence control, which is characterized by comprising the automatic smoke detection control circuit based on digital time sequence control according to any one of claims 1 to 9.

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