CN219042006U

CN219042006U - Low-cost poultry heat preservation lamp control circuit and controlling means

Info

Publication number: CN219042006U
Application number: CN202223262855.0U
Authority: CN
Inventors: 牟新焱
Original assignee: Hunan Hengkong Zhisheng Technology Co ltd
Current assignee: Hunan Hengkong Zhisheng Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-16
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to the technical field of livestock breeding temperature control, and particularly discloses a low-cost livestock heat preservation lamp control circuit and a control device. The control circuit is fixedly connected to the inside of the control box in a screw connection mode. Three windows are arranged on the front face of the control box, and each window is respectively fixed with a two-bit nixie tube of the control circuit. The utility model aims to provide a low-cost livestock heat preservation lamp control circuit and a control device, which are used for solving the technical problem of high electricity consumption cost of temperature control.

Description

Low-cost poultry heat preservation lamp control circuit and controlling means

Technical Field

The utility model relates to the technical field of temperature control of livestock breeding, and particularly discloses a low-cost livestock heat preservation lamp control circuit and a control device.

Background

The livestock breeding industry is an important component of agricultural production, can increase income of farmers, provides meat food for people living and provides raw materials for food industry, and is a very important industry.

However, due to the poor cold resistance and growth at high temperatures of the general livestock, a suitable temperature is very important for the growth of pigs.

Aiming at the situation, a temperature control system is generally adopted in the prior art, so that the function of temperature regulation on the environment where livestock is located is realized. For example, chinese patent (publication No. CN 105588174A) discloses a coal-electricity matched heat supply system for livestock breeding, which is provided with a boiler body for providing a heat source for a breeding shed and a radiator connected with the boiler body, wherein an electric heating water tank is arranged between the radiator and the boiler body; a flue connected with the boiler body penetrates through a wall at one side of the cultivation shed and enters the cultivation shed, and the flue is fixedly arranged around the inner wall of the cultivation shed and protrudes out of the wall at the other side of the cultivation shed after forming a plurality of bends; the boiler body is equipped with temperature control case I, and electric water heater is equipped with temperature control case II, and temperature control case I links to each other with the temperature probe I that the return water end was equipped with, and temperature control case II links to each other with the temperature probe II that the output was equipped with.

Although the above-mentioned technical scheme can realize the function of breeding temperature regulation, the judgment standard of temperature regulation is only judged according to the setting value, and the judgment mode is comparatively single. For example, when the actual environmental temperature facing the livestock breeding is higher than the set temperature, the continuous heating of the control system causes additional power consumption, so that the power cost is high.

Disclosure of Invention

The utility model aims to provide a low-cost livestock heat preservation lamp control circuit and a control device, which are used for solving the technical problem of high electricity consumption cost of temperature control.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: the control circuit of the low-cost livestock heat preservation lamp comprises a control power switch circuit, wherein the control power switch circuit is connected with a twenty-pin MCU (micro control Unit) singlechip, and the MCU singlechip is respectively connected with a two-bit nixie tube, a heating lamp, a tact switch and an NTC (negative temperature coefficient) thermistor;

ten pins are arranged on the nixie tube, wherein the tenth pin and the fifth pin are the COM ends of the position selection interface, and the rest pins of the nixie tube are used for controlling the nixie tube to be turned on or turned off;

the first pin, the second pin and the third pin of the MCU singlechip are connected with a port J1; the port J1 is four pins, wherein the fourth pin of the port J1 is connected with a power supply voltage; the first pin of the MCU singlechip is grounded through a port J1; the second pin is connected with a zero-setting end in the zero-setting circuit through a port J1; the third pin is connected with the HEAT1 end through a port J1; the fourth pin is connected with the end of the LED_COM1; the fifth pin, the eighth pin, the ninth pin, the fifteenth pin, the sixteenth pin and the eighteenth pin are connected with the COM end of the nixie tube; a sixth stitch, a seventh stitch, a tenth stitch, an eleventh stitch, a twelfth stitch, a thirteenth stitch, a fourteenth stitch, a seventeenth stitch are connected with the remaining stitches of the nixie tube; the nineteenth pin is connected with the NTC/BUZ end; the twenty-second pin power supply voltage is connected with a capacitor C5, and the other end of the capacitor C5 is grounded;

the LED lamp also comprises a silicon controlled bidirectional thyristor BTA1, wherein the anode of the bidirectional thyristor BTA1 is connected with a load circuit, and the load circuit comprises 2 heating lamps; the cathode of the bidirectional thyristor BTA1 is also connected with a resistor RX1, the other end of the resistor RX1 is connected with a capacitor CX1, and the other end of the capacitor CX1 is connected with the anode of the bidirectional thyristor BTA 1; the control G end of the bidirectional thyristor BTA1 is respectively connected with a resistor R4 and a resistor R5, the other end of the resistor R4 is connected with the anode of the bidirectional thyristor BTA1, and the other end of the resistor R5 is connected with the first pin HEAT1 end of the port J1.

The beneficial effect of this basic scheme lies in: the technical scheme utilizes the control power switch circuit for providing stable and continuous power supply voltage. And the MCU singlechip is utilized to realize the dynamic control of the heating value of the heating lamp according to the environmental temperature measured by the NTC temperature probe. According to the technical scheme, the three groups of two-bit nixie tubes are dynamically displayed according to the preset program setting by utilizing the high and low level matching of the MCU singlechip. According to the technical scheme, the dynamic heating value control of the heating lamp is realized by using the silicon controlled rectifier bidirectional thyristor, and the MCU singlechip can perform environmental constant temperature control by using the return parameter of the NTC temperature probe, so that the dynamic control of temperature is effectively improved. The specific control mode is that the dynamic heating value of the heating lamp is realized through a silicon controlled rectifier bidirectional thyristor according to the feedback parameter of the NTC temperature probe, and finally the dynamic display function of the temperature is realized by utilizing a nixie tube.

Compared with the constant temperature control in the prior art, the technical scheme utilizes the NTC temperature probe to realize the dynamic control of the heating value of the heating lamp according to the ambient temperature. The temperature control device has the advantages that the temperature control is more reasonable, the power source is more efficient in use, the utilization rate of a control circuit is improved, the use cost of temperature control is effectively reduced, and the use requirement of livestock breeding is effectively met.

Further, the control power switch circuit comprises a fuse F1, an anode of the fuse F1 is connected with a live wire, and a cathode of the fuse F1 is respectively connected with a piezoresistor ZNR1 anode, a capacitor CX2 anode and a resistor R3 anode; the cathode of the resistor R3 is connected with the anode of the resistor R2; the cathode of the piezoresistor ZNR1, the cathode of the capacitor CX2 and the cathode of the resistor R2 are respectively connected with the zero line N1;

the power supply also comprises a seven-pin pwm control power switch, wherein a first pin of the pwm control power switch is connected with the anode of the thermistor RT1, and the cathode of the thermistor RT1 is connected with the zero line N1; the second pin is respectively connected with the cathodes of the capacitor C1, the resistor R8 and the inductor L3; the third pin is connected to the other end of the capacitor C1; the fourth pin is connected to the other end of the resistor R8 and the resistor R9; the fifth pin is connected with the cathode of the capacitor C2, the cathode of the capacitor EC2, the cathode of the resistor R10 and the ground; the capacitor C2 cathode, the capacitor EC2 anode, the resistor R10 anode and the inductor L3 anode are connected to the live wire; the sixth pin is connected with the anode of the inductor L2 and the cathode of the capacitor EC 1; the anode of the capacitor EC1 is connected with the live wire; the seventh pin is connected to the cathode of the inductor L2; and the anode of the resistor R10 is a power supply voltage end.

Further, the zero crossing circuit comprises a diode D1, a resistor R6 and a resistor R7 which are sequentially connected; the other end of the resistor R7 is respectively connected with a resistor R11 and an NPN triode Q1 base stage; the other end of the resistor R11 is grounded; the collector of the triode Q1 is respectively connected with a resistor R12 and a resistor R13; the other end of the resistor R12 is a +5v voltage end; the other end of the resistor R13 is respectively connected with a resistor R14 and a zeroing end; the other end of the resistor R14 is connected with the emitter of the triode Q1 and grounded; the diode D1 is also connected to the zero line N2 and the zero line N1.

The beneficial effects are that: according to the technical scheme, the zero crossing circuit is additionally arranged to control the power output, so that the stability of the power output is effectively improved.

Further, the touch switch K1, the touch switch K2, the touch switch K3, the touch switch K4, the touch switch K5 and the touch switch K6 are also included; the anode of the tact switch K1 is connected with a resistor RK1, and the other end of the resistor RK1 is connected with an eleventh pin SEG1 of the MCU singlechip; the anode of the tact switch K2 is connected with a resistor RK2, and the other end of the resistor RK2 is connected with a sixth pin SEG2 of the MCU; the anode of the tact switch K3 is connected with a resistor RK3, and the other end of the resistor RK3 is connected with a fourteenth pin SEG3 of the MCU; the anode of the tact switch K4 is connected with a resistor RK4, and the other end of the resistor RK4 is connected with a twelfth pin SEG4 of the MCU; the anode of the tact switch K5 is connected with a resistor RK5, and the other end of the resistor RK5 is connected with a thirteenth pin SEG5 of the MCU singlechip; the anode of the tact switch K6 is connected with a resistor RK6, and the other end of the resistor RK6 is connected with a seventeenth pin SEG6 of the MCU singlechip; the cathodes of the tact switch K1, the tact switch K2, the tact switch K3, the tact switch K4, the tact switch K5 and the tact switch K6 are grounded.

Further, the anode of the NTC thermistor is connected with a power supply voltage, the cathode of the NTC thermistor is respectively connected with a capacitor C3 anode, a resistor R16 anode and a resistor R15 anode, wherein the capacitor C3 cathode and the resistor R16 cathode are grounded, and the resistor R15 cathode is connected with the nineteenth pin NTC/BUZ end of the MCU singlechip.

The beneficial effects are that: according to the technical scheme, the MCU is utilized to carry out environmental constant temperature control according to the thermistor NTC1 feedback parameters.

Further, the electric bell BUZ1 is further included, the anode of the electric bell BUZ1 is connected with a power supply voltage, the cathode of the electric bell BUZ1 is connected with a capacitor C4, and the cathode of the capacitor C4 is connected with the nineteenth pin NTC/BUZ end of the MCU singlechip.

Further, the LED lamp also comprises a light emitting diode LED1, a light emitting diode LED2 and a light emitting diode LED3; the anode of the light emitting diode LED1 is connected with an eleventh pin SEG1 of the MCU, the anode of the light emitting diode LED2 is connected with a sixth pin SEG2 of the MCU, and the anode of the light emitting diode LED3 is connected with a fourteenth pin SEG3 of the MCU; the cathodes of the light emitting diode LED1, the light emitting diode LED2 and the light emitting diode LED3 are connected with the fourth pin of the MCU and connected with the end of the LED_COM1.

Further, the control device comprises a control box, and the control circuit is fixedly connected to the inside of the control box in a screw connection mode; three windows are arranged on the front face of the control box, and each window is respectively fixed with a two-bit nixie tube of the control circuit.

The beneficial effects are that: according to the technical scheme, the nixie tubes with three windows are respectively used for displaying the measured temperature index of the thermistor NTC1, the working temperature index of the heating lamp and the day index.

Further, the control box is further provided with three openings, and each opening is used for fixing the Light Emitting Diode (LED) 1, the Light Emitting Diode (LED) 2 and the Light Emitting Diode (LED) 3 of the control circuit.

The beneficial effects are that: the technical scheme is that three light emitting diodes are used for displaying constant temperature, delivery and conservation information respectively.

Further, six keys are provided on the control box, and the six keys are respectively and sequentially fixed on a touch switch K1, a touch switch K2, a touch switch K3, a touch switch K4, a touch switch K5 and a touch switch K6 of the control circuit.

The beneficial effects are that: according to the technical scheme, the switch is controlled by the touch switch K1, the touch switch K2 is used for controlling digital display digital increase of the nixie tube, the touch switch K3 is used for controlling digital display digital decrease of the nixie tube, and the touch switches K4, K5 and K6 are used for controlling MCU singlechip control modes and settings.

Drawings

FIG. 1 is a diagram of a pwm control power switch circuit and zero crossing circuit of a low cost animal heat preservation lamp control circuit according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a bi-directional thyristor of a low cost animal holding lamp control circuit according to one embodiment of the utility model;

FIG. 3 is a circuit diagram of a low cost animal heat preservation lamp control circuit tact switch according to the first embodiment of the present utility model;

fig. 4 is a circuit diagram of an MCU singlechip of a low-cost heat preservation lamp control circuit for livestock according to an embodiment of the present utility model;

fig. 5 is a circuit diagram of a nixie tube LEM1 of a low-cost control circuit for a heat preservation lamp for livestock according to an embodiment of the present utility model;

fig. 6 is a circuit diagram of a nixie tube LEM2 of a low-cost control circuit for a heat preservation lamp for livestock according to the first embodiment of the present utility model;

fig. 7 is a circuit diagram of a nixie tube LEM3 of a low-cost control circuit for a heat preservation lamp for livestock according to the first embodiment of the present utility model;

fig. 8 is a circuit diagram of an electric bell BUZ1 of a low-cost stockbreeding heat preservation lamp control circuit according to the first embodiment of the utility model;

FIG. 9 is a circuit diagram of a light emitting diode of a low cost animal heat preservation lamp control circuit according to an embodiment of the present utility model;

fig. 10 is a circuit diagram of a thermistor NTC1 of a low-cost animal heat preservation lamp control circuit according to the first embodiment of the present utility model;

FIG. 11 is a diagram of a control circuit for a low cost animal holding lamp according to a first embodiment of the present utility model;

fig. 12 is a block diagram of a control device for a low-cost heat preservation lamp for livestock according to a first embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: a heat generating lamp 101 and a control box 202.

Example 1

A low-cost livestock heat preservation lamp control circuit is shown in figure 11, and comprises a pwm control power switch circuit shown in figure 1, wherein the pwm control power switch circuit comprises a fuse F1, an anode of the fuse F1 is connected with a live wire, and a cathode of the fuse F1 is respectively connected with an anode of a piezoresistor ZNR1, an anode of a capacitor CX2 and an anode of a resistor R3; the cathode of the resistor R3 is connected with the anode of the resistor R2; the voltage dependent resistor ZNR1 cathode, the capacitor CX2 cathode and the resistor R2 cathode are respectively connected with the zero line N1.

The power switch is controlled by pwm, and the pwm control power switch adopts a KP3114WPA model control chip with double rows of seven array pins. The pwm control power switch includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, and a seventh pin.

The first pin of the pwm control power switch is connected to the anode of a thermistor RT1, and the cathode of the thermistor RT1 is connected to a zero line N1; the second pin is respectively connected with the cathodes of the capacitor C1, the resistor R8 and the inductor L3; the third pin is connected to the other end of the capacitor C1; the fourth pin is connected to the other end of the resistor R8 and the resistor R9; the fifth pin is connected to the cathode of the capacitor C2, the cathode of the capacitor EC2, the cathode of the resistor R10 and the ground. The C2 cathode, the capacitor EC2 anode, the resistor R10 anode and the inductor L3 anode are connected to the live wire. The anode of the resistor R10 is provided with a stable direct current supply voltage end of +5V/250 mA. The sixth pin inductance L2 anode and the cathode of the capacitor EC 1. The anode of the capacitor EC1 is connected to the hot line. The seventh pin is connected to the cathode of the inductor L2.

The zero-crossing circuit comprises a diode D1, a resistor R6 and a resistor R7 which are sequentially connected. The other end of the resistor R7 is respectively connected with a resistor R11 and the end B of the NPN triode Q1. The other end of the resistor R11 is grounded. The C terminal of the triode Q1 is respectively connected with a resistor R12 and a resistor R13. The other end of the resistor R12 is a +5v voltage end. The other end of the resistor R13 is respectively connected with a resistor R14 and a zeroing end. The other end of the resistor R14 is connected to the E terminal of the transistor Q1 and to ground. The diode D1 in the zero crossing circuit is connected to the zero line N2 and the zero line N1.

As shown in fig. 5, 6 and 7, the two-bit nixie tube LEM1, LEM2 and LEM3 are also included. The two digit nixie tubes are respectively provided with a first stitch SEG5, a second stitch SEG4, a third stitch SEG3, a fourth stitch SEG7, a sixth stitch SEG6, a seventh stitch SEG1, an eighth stitch SEG2 and a ninth stitch SEG8 for controlling the nixie tube. The circuit also comprises a tenth pin serving as a bit selection interface dig1 and a fifth pin serving as a bit selection interface dig2. The dig1 bit selection interface of the LEM3 is connected with the COM1 end, and the dig2 bit selection interface of the LEM3 is connected with the COM2 end; the dig1 bit selection interface of the LEM1 is connected with the COM3 end, and the dig2 bit selection interface of the LEM1 is connected with the COM4 end; the dig1 bit selection interface of LEM2 is connected with the COM5 end, and the dig2 bit selection interface of LEM2 is connected with the COM6 end.

As shown in figure 4, the device also comprises an MCU singlechip with double rows of 20 pins. The model selected in this example is CMS79F7266. Wherein the first pin, the second pin and the third pin of the singlechip are connected with the port J1. The port J1 is four pins, wherein the fourth pin of the port J1 is connected with the power supply voltage.

Wherein the third pin of the first pin J1 of the MCU is grounded; the second pin of the MCU is connected with the second array pin of the J1 and connected with a zero-setting end in the zero-crossing circuit; the third pin of the MCU is connected with the first pin HEAT1 end of the J1; the fourth pin of the MCU is connected with the end of the LED_COM1; the fifth pin of the MCU is connected with a dig2 bit selection interface of the LEM3 and is connected with a COM2 end; the sixth pin of the MCU is connected with an eighth pin SEG2 of the two-bit nixie tube; the seventh pin of the MCU is connected with a ninth pin SEG8 of the two-bit nixie tube; the eighth pin of the MCU is connected with the COM1 end of the dig1 bit selection interface of the LEM 3; the ninth pin of the MCU is connected with the COM6 end of the dig2 bit selection interface of the LEM 2; the tenth pin of the MCU is connected with a fourth pin SEG7 of the two-bit nixie tube; an eleventh pin of the MCU is connected with a seventh pin SEG1 of the two-bit nixie tube; the twelfth pin of the MCU is connected with a second pin SEG4 of the two-bit nixie tube; the thirteenth pin of the MCU is connected with a first pin SEG5 of the two-bit nixie tube; the fourteenth pin of the MCU is connected with a third pin SEG3 of the two-bit nixie tube; the fifteenth pin of the MCU is connected with the COM4 end of the dig2 bit selection interface of the LEM 1; the sixteenth pin of the MCU is connected with the COM3 end of the dig1 bit selection interface of the LEM 1; a seventeenth pin of the MCU is connected with a sixth pin SEG6 of the two-bit nixie tube; an eighteenth pin of the MCU is connected with a dig1 bit selection interface COM5 end of the LEM 2; the nineteenth pin of the MCU is respectively connected with the NTC/BUZ end; the twenty-first pin of the MCU supplies power to the capacitor C5, and the other end of the capacitor C5 is grounded.

As shown in fig. 9, the light emitting diode LED1, the light emitting diode LED2, and the light emitting diode LED3 are further included. The anode of the light emitting diode LED1 is connected with the eleventh pin SEG1 of the MCU, the anode of the light emitting diode LED2 is connected with the sixth pin SEG2 of the MCU, and the anode of the light emitting diode LED3 is connected with the fourteenth pin SEG3 of the MCU. The cathodes of the light emitting diode LED1, the light emitting diode LED2 and the light emitting diode LED3 are connected with the fourth pin of the MCU and connected with the end of the LED_COM1.

As shown in fig. 10, the battery pack also comprises a thermistor NTC1, wherein an anode of the thermistor NTC1 is connected with a power supply voltage, a cathode of the thermistor NTC1 is respectively connected with a capacitor C3 anode, a resistor R16 anode and a resistor R15 anode, wherein the cathode of the capacitor C3 and the cathode of the resistor R16 are grounded, and the cathode of the resistor R15 is connected with the nineteenth pin NTC/BUZ end of the MCU. And the MCU performs environmental constant temperature control according to the thermistor NTC1 feedback parameters.

As shown in figure 8, the electric bell BUZ1 is further arranged, the anode of the electric bell BUZ1 is connected with the power supply voltage, the cathode of the electric bell BUZ1 is connected with a capacitor C4, and the cathode of the capacitor C4 is connected with the nineteenth pin NTC/BUZ end of the MCU.

As shown in fig. 2, the device further comprises a bidirectional thyristor BTA1, wherein an anode of the bidirectional thyristor BTA1 is connected with a load circuit, and the load circuit comprises 2 heating lamps 101. The cathode of the bidirectional thyristor BTA1 is also connected with a resistor RX1, the other end of the resistor RX1 is connected with a capacitor CX1, and the other end of the capacitor CX1 is connected with the anode of the bidirectional thyristor BTA 1. The control G end of the bidirectional thyristor BTA1 is respectively connected with a resistor R4 and a resistor R5, the other end of the resistor R4 is connected with the anode of the bidirectional thyristor BTA1, and the other end of the resistor R5 is connected with the first pin HEAT1 end of J1.

As shown in fig. 3, the touch switch K1, the touch switch K2, the touch switch K3, the touch switch K4, the touch switch K5, and the touch switch K6 are further included. The anode of the tact switch K1 is connected with a resistor RK1, and the other end of the resistor RK1 is connected with an eleventh pin SEG1 of the MCU; the anode of the tact switch K2 is connected with a resistor RK2, and the other end of the resistor RK2 is connected with a sixth pin SEG2 of the MCU; the anode of the tact switch K3 is connected with a resistor RK3, and the other end of the resistor RK3 is connected with a fourteenth pin SEG3 of the MCU; the anode of the tact switch K4 is connected with a resistor RK4, and the other end of the resistor RK4 is connected with a twelfth pin SEG4 of the MCU; the anode of the tact switch K5 is connected with a resistor RK5, and the other end of the resistor RK5 is connected with a thirteenth pin SEG5 of the MCU; the anode of the tact switch K6 is connected with a resistor RK6, and the other end of the resistor RK6 is connected with a seventeenth pin SEG6 of the MCU. The cathodes of the tact switches K1, K2, K3, K4, K5 and K6 are all grounded.

As shown in fig. 12, a control device includes a control box 202, and a control circuit is fixedly connected to the inside of the control box 202 by means of screw connection. Three windows are arranged on the front surface of the control box 202, and each window is fixed with a two-bit nixie tube of a control circuit. The nixie tubes of the three windows are used for displaying the measured temperature index of the thermistor NTC1, the working temperature index of the heating lamp 101 and the day index, respectively.

The control box 202 has three openings in the vertical direction on one side of the adjacent rightmost window, each for fixing the light emitting diode LED1, the light emitting diode LED2, and the light emitting diode LED3 that house the control circuit. The three light emitting diodes are used for displaying constant temperature, delivery and nursing information respectively.

The control box 202 is provided with a row of six keys below the three windows, and the six keys are respectively and sequentially fixed with a touch switch K1, a touch switch K2, a touch switch K3, a touch switch K4, a touch switch K5 and a touch switch K6 corresponding to the control circuit. The touch switch K1 is used for controlling the switch, the touch switch K2 is used for controlling the digital display number of the nixie tube to be increased, the touch switch K3 is used for controlling the digital display number of the nixie tube to be reduced, and the touch switch K4, the touch switch K5 and the touch switch K6 are used for controlling the MCU singlechip control mode and setting.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. A low-cost poultry heat preservation lamp control circuit which characterized in that: the power control circuit is connected with a twenty-pin MCU singlechip, and the MCU singlechip is respectively connected with a two-bit nixie tube, a heating lamp, a tact switch and an NTC thermistor;

2. A low cost animal husbandry heat preservation lamp control circuit according to claim 1, wherein: the control power switch circuit comprises a fuse F1, wherein an anode of the fuse F1 is connected with a live wire, and a cathode of the fuse F1 is respectively connected with an anode of a piezoresistor ZNR1, an anode of a capacitor CX2 and an anode of a resistor R3; the cathode of the resistor R3 is connected with the anode of the resistor R2; the cathode of the piezoresistor ZNR1, the cathode of the capacitor CX2 and the cathode of the resistor R2 are respectively connected with the zero line N1;

3. A low cost animal husbandry heat preservation lamp control circuit according to claim 2, wherein: the zero crossing circuit comprises a diode D1, a resistor R6 and a resistor R7 which are sequentially connected; the other end of the resistor R7 is respectively connected with a resistor R11 and an NPN triode Q1 base stage; the other end of the resistor R11 is grounded; the collector of the triode Q1 is respectively connected with a resistor R12 and a resistor R13; the other end of the resistor R12 is a +5v voltage end; the other end of the resistor R13 is respectively connected with a resistor R14 and a zeroing end; the other end of the resistor R14 is connected with the emitter of the triode Q1 and grounded; the diode D1 is also connected to the zero line N2 and the zero line N1.

4. A low cost animal husbandry heat preservation lamp control circuit according to claim 3, wherein: the touch switch K1, the touch switch K2, the touch switch K3, the touch switch K4, the touch switch K5 and the touch switch K6 are further included; the anode of the tact switch K1 is connected with a resistor RK1, and the other end of the resistor RK1 is connected with an eleventh pin SEG1 of the MCU singlechip; the anode of the tact switch K2 is connected with a resistor RK2, and the other end of the resistor RK2 is connected with a sixth pin SEG2 of the MCU; the anode of the tact switch K3 is connected with a resistor RK3, and the other end of the resistor RK3 is connected with a fourteenth pin SEG3 of the MCU; the anode of the tact switch K4 is connected with a resistor RK4, and the other end of the resistor RK4 is connected with a twelfth pin SEG4 of the MCU; the anode of the tact switch K5 is connected with a resistor RK5, and the other end of the resistor RK5 is connected with a thirteenth pin SEG5 of the MCU singlechip; the anode of the tact switch K6 is connected with a resistor RK6, and the other end of the resistor RK6 is connected with a seventeenth pin SEG6 of the MCU singlechip; the cathodes of the tact switch K1, the tact switch K2, the tact switch K3, the tact switch K4, the tact switch K5 and the tact switch K6 are grounded.

5. A low cost animal husbandry heat preservation lamp control circuit according to claim 4, wherein: the anode of the NTC thermistor is connected with a power supply voltage, the cathode of the NTC thermistor is respectively connected with a capacitor C3 anode, a resistor R16 anode and a resistor R15 anode, wherein the capacitor C3 cathode and the resistor R16 cathode are grounded, and the resistor R15 cathode is connected with the nineteenth pin NTC/BUZ end of the MCU singlechip.

6. A low cost animal husbandry heat preservation lamp control circuit according to claim 5, wherein: the electric bell BUZ1 is characterized by further comprising an electric bell BUZ1, wherein the anode of the electric bell BUZ1 is connected with a power supply voltage, the cathode of the electric bell BUZ1 is connected with a capacitor C4, and the cathode of the capacitor C4 is connected with the nineteenth pin NTC/BUZ end of the MCU singlechip.

7. A low cost animal husbandry heat preservation lamp control circuit according to claim 6, wherein: the LED lamp also comprises a light emitting diode LED1, a light emitting diode LED2 and a light emitting diode LED3; the anode of the light emitting diode LED1 is connected with an eleventh pin SEG1 of the MCU, the anode of the light emitting diode LED2 is connected with a sixth pin SEG2 of the MCU, and the anode of the light emitting diode LED3 is connected with a fourteenth pin SEG3 of the MCU; the cathodes of the light emitting diode LED1, the light emitting diode LED2 and the light emitting diode LED3 are connected with the fourth pin of the MCU and connected with the end of the LED_COM1.

8. A control device characterized in that: the control circuit is fixedly connected to the inside of the control box in a screw connection mode; three windows are arranged on the front face of the control box, and each window is respectively fixed with a two-bit nixie tube of the control circuit.

9. A control device according to claim 8, characterized in that: the control box is also provided with three openings, and each opening is used for fixing the Light Emitting Diode (LED) 1, the Light Emitting Diode (LED) 2 and the Light Emitting Diode (LED) 3 of the control circuit.

10. The control device according to claim 9, characterized in that: six keys are arranged on the control box, and the six keys are respectively and sequentially fixed on a touch switch K1, a touch switch K2, a touch switch K3, a touch switch K4, a touch switch K5 and a touch switch K6 of the control circuit.