Induction module of microwave motion sensor

The invention discloses an induction module of a microwave motion sensor, which detects the displacement of a human body or an object by the microwave Doppler Effect. A circuit module consists of a microwave motion sensor and an induction signal amplifying circuit; a modular circuit comprises the microwave motion sensor, a signal amplifying IC, a signal processing single chip, a positioning screw hole, power input and signal output ports, a 16-grade sensitivity selector, four-triggering-mode selector, a photo-resistance selector, a power stabilizer and the like. A microwave motion sensor circuit board (1) inputs the induction signals which are generated by the displacement of the human body or the object into an induction signal amplifying circuit board (11) and the induction signals are output as the 5 V high-level control signals under the control of an A/D converting single chip (19). The induction module of the microwave motion sensor operates with a direct-current power supply with ...

Microwave inductive switch

The invention relates to a microwave inductive switch using a microwave moving sensor to detect the movement of a human body. The switch comprises a switch power supply circuit, a voltage regulator circuit, a microwave moving sensor, a signal amplifying circuit, a singlechip control circuit, a relay output circuit and the like. The switch works by using the 110v or 220v alternating current power supply or using 6 to 20v direct current supply. A standard power bottom box of 86 * 86 mm is used, thereby other switches can be conveniently installed and replaced. The microwave moving sensor has the working frequency of 10 to 12 Ghz, has the characters of reliable performance, low power consumption, convenient installation and wide voltage range and uses the alternating and the direct current power supplies. The switch can be used in the fields of security protection, electric appliance, passageway electricity saving illumination, automatic induction electricity saving illumination of underground ...

Microwave sensor

The invention discloses a microwave sensor for detecting movement of human bodies or objects by utilizing Doppler Effect. A microwave oscillator, a frequency mixer, a microstrip line, a microwave sending antenna and a receiving antenna are designed on a circuit board of 45*37mm, and microwave frequency is 10-12Ghz. The microwave sensor has the characteristics of simple structure, strong interference resistance and high detection sensitivity, and can be widely used in the controlling fields such as security protection, industrial equipment and the like.

Preparation method of ultra-pure cadmium

The invention relates to the field of high-purity metal materials, in particular to a preparation method of ultra-high-purity cadmium. The preparation method of the ultra-pure cadmium comprises the following steps: S1) carrying out vacuum heating on a cleaned graphite mold to obtain a pretreated graphite mold; s2) in a hydrogen atmosphere, heating a cadmium ingot in the graphite mold obtained in the step S1) to obtain a cadmium material; and S3) carrying out directional condensation on the cadmium material obtained in the step S2) to obtain ultra-high-purity cadmium. Experiments show that the ultra-pure cadmium block prepared by the method disclosed by the invention is bright in surface, free from oxidation and defects, free from oxidation and foreign matters on the surface after vacuum melting, less than 100ppbw in internal oxygen content, less than 2ppbw in sulfur content and less than 1ppbw in phosphorus content, can meet the requirements of synthesizing CZT and MCT crystals, does not ...

Microwave motion sensor

The invention discloses a microwave motion sensor, which detects the displacement of a human body or an object by the microwave Doppler Effect. On a double-faced circuit board with an area of 45x37 mm or 46.5x40 mm, a circuit module which consists of a microwave oscillator, a mixer, a microwave emitting antenna (10) and a receiving antenna (11) is used for detecting the displacement of the human body and the object and outputting induction signals. The circuit of the microwave motion sensor adopts micro-strip line structure design, the microwave oscillator generates microwave signals with frequencies of between 10 and 12 GHz, the emitting antenna (10) sends signals outward, when people or the object moves in a detecting scope, the receiving antenna (11) inputs the induction signals into the microwave mixer and the microwave mixer outputs a low-frequency Doppler induction signal, and thus, the aim of detecting the displacement of the human body and the object is realized. The microwave motion ...

Human body induction module

The invention discloses a human body induction module designed by a PIR pyroelectric sensor, which comprises electron components positioned on the same circuit board, such as a low-power consumption voltage stabilizer (9), a pyroelectric sensor (7), a Fresnel lens, a special IC (2) for the pyroelectric sensor and the like. A 4.5-20 V direct-current power supply is stabilized and filtered by the low-power consumption voltage stabilizer (9) to provide the power supply for the module; a human body movement induction signal is transmitted to a signal amplification processing IC (2) by the PIR pyroelectric sensor (7) through a signal low-pass filter; and a high level control signal is output by two pins of BISS0001. The circuit board of the module is provided with a light dependent resistor (LDR) option; the control module operates in day or night and is provided with a trigger way option to complete repeated or non-repeated trigger option function of the human body induction signal. The modular ...

Multichannel array signal generating method and device

The invention discloses a multichannel array signal generating method and a device. The device comprises a signal parameter setting module, a shift register, a phase inverter network module, a switch matrix, a low pass filter and a level switch circuit, wherein the signal parameter setting module is used for realizing the selection of signal frequency/ pulse width/ array element position/ wave beam forming direction; the shift register and the phase inverter network module are used for generating multiple paths of delayed/ initial phase equidifferent square signals of which the frequency is f=fclk/2N, wherein fclk is clock signal frequency, and N is the number of the shift register; the switch matrix is used for selecting the square signal with corresponding delay/ initial phase from a square signal assembly according to the needed signal parameter; the low pass filter is used for shaping multiple paths of square signals to obtain multiple paths of sine wave signals; and the level switch ...

Disc type laminated flywheel motor

The invention discloses a disc type laminated flywheel motor, which is characterized by comprising a motor stator (1), a rotor (2), motor end covers (31) and (32), stator magnetic assemblies (11) and (12), a rotor magnetic assembly (24), a stator sensor assembly (13), a rotor sensor assembly (23) and a power supply control unit (4), magnetic coil assemblies are arranged on the energy storage flywheel and the edge, the energy storage flywheel, a motor stator (1) and motor end covers (31) and (32) form laminations, and the disc type laminated flywheel motor is formed.

Coal yard bucket wheel machine automatic transformation technology based on 5G private network

The invention relates to the technical field of bucket wheel machines, and discloses a 5G private network-based coal yard bucket wheel machine automation reconstruction technology, which comprises a central control board, the output end of the central control board is in signal connection with a connection unit, a networking unit and a control unit, and the connection unit comprises a signal sending module. The output end of the signal sending module is in signal connection with a signal receiving module. According to the coal yard bucket wheel machine automatic transformation technology based on the 5G private network, a central control board is arranged, signals produced in the central control board are transmitted into a bucket wheel machine through a signal sending module, and the bucket wheel machine unpacks and interprets the signals sent by the signal sending module through a signal receiving module; and then the bucket wheel machine sends feedback information to the central control ...

Microwave sensor

The invention discloses a microwave sensor which can detect movement of a human body or an object at long range by using a microwave Doppler effect and an array type antenna structure. A two-sided circuit board with a area of 85x85mm consisting of a microwave oscillator, a mixer, a microwave transmitting antenna (10) and a receiving antenna (11) is used for detecting the translocation of the human body or the object and outputting an inductive signal; and the microwave oscillator generates a microwave signal with a frequency of 10.525 Ghz, the transmitting antenna (10) directionally transmits the signal; a person or an object moves in the inductive range, the receiving antenna (11) inputs the inductive signal to the microwave mixer, and the mixer outputs the Doppler signal with low frequency. The microwave sensor transmits and receives the antenna, and uses a double 4x2 array type structure with a circuit board plane form, thereby obtaining greater signal gain and narrower covered beam; ...

Nail polisher

Microwave sensing module

The invention discloses a microwave sensing module. The microwave sensing module is a microwave circuit module with a function of sensing a moving human body and a moving object. Two antenna panels 1 and two microwave signal bottom boards 2 are independent double-faced circuit boards, are vertically superposed together by four claws of a signal shielding aluminum shell 3, and are fixed in the front of the shielding aluminum shell. A double-faced control circuit board 4 is arranged behind the signal shielding aluminum shell 3 and is provided with a power input circuit, a signal output circuit and a microwave sensing signal amplifying and processing circuit, and the antenna panels 1 and the microwave signal bottom boards 2 are in circuit connection with each other through four groups of straight positioning pins at the corners of the circuit board. The microwave sensing module works with a 3.7-24V direct current power supply, and outputs a sensing control signal when the moving human body ...

Hydrocarbon solvent extraction device for preparing plant essential oil

The invention relates to the technical field of plant essential oil preparation, in particular to a hydrocarbon solvent extraction device for plant essential oil preparation. According to the hydrocarbon solvent extraction device for preparing the plant essential oil, the water flow speed can be increased to clean plant raw materials, the plant raw materials are prevented from being damaged, and meanwhile the plant raw materials are cut and smashed to improve the sufficient reaction degree. A hydrocarbon solvent extraction device for preparing plant essential oil comprises a base, an extraction tank, an upper cover and the like, the middle position of the top of the base is connected with the extraction tank, and the top of the extraction tank is slidably connected with the upper cover. An output shaft of a first servo motor drives stirring blades to accelerate the water flow speed, so that plant raw materials are cleaned, the situation that plants are directly stirred and cleaned, and ...

Drilling device for machine manufacturing

The utility model discloses a drilling device for machine manufacturing. Including a base, a fixing frame and a lifting rod fixing plate are arranged at the top of the base; a fixing rod penetrates through the side surface of the fixing frame; a screw and a lifting rod are respectively arranged at the top of the lifting rod fixing plate; a lifting plate is arranged at the top of the lifting rod; afixed plate is fixedly arranged at the top of the lifting plate; a fixing bolt and a connecting column are respectively arranged at the top of the moving plate; a movable disc is arranged at the topof the connecting column; a hydraulic electric box is arranged at the top of the movable disc; an adjusting groove and a hydraulic telescopic rod are arranged on the inner side of the hydraulic electric box; a sliding rail is mounted at the top of the hydraulic electric box; the hydraulic electric box is connected with a sliding plate through a sliding rail; according to the drilling device, the problems ...

Urban rail transit mobile terminal based on double offline modes

The invention provides an urban rail transit mobile terminal based on a double-offline mode, and configures a data uploading and downloading method based on the double-offline mode, and the method comprises the steps: marking an area without a network or with a poor network in an urban rail transit network; positioning the position of the user in real time; when finding that the user is about to enter a network-free or poor-network area, downloading service data to a local offline library; when a service data downloading request is carried out, whether a network exists or not is automatically judged, if yes, a server is requested, and if not, a local offline library is requested; when service data is filled, whether a network exists or not is automatically judged, if yes, the service data is submitted to a server, and if not, the service data is submitted to a local offline library; the network is detected in real time, when a network signal is normal, data is automatically retrieved from ...

Human body infrared induction module

The invention discloses a human body infrared ray induction module, which comprises a stabilizer (6) with low power consumption arranged in a same circuit board, a pyroelectric sensor (1), a Fresnel lens (2), a processing IC (7) and a lowpass filter; wherein the Fresnel lens (2) is arranged in the pyroelectric sensor (1); direct current power supply is stabilized and filtered by the stabilizer (6) with low power consumption to supply power to the pyroelectric sensor (1) and the processing IC (7); the signal inducted by the pyroelectric sensor (1) is input to the processing IC (7) through the lowpass filter; the signal is amplified and undergoes signal comparison and logic control to realize the conversion from sensor signal voltage to logic level; and eventually, the control signal level is output. After being modularly designed by the invention, the pyroelectric sensor can work with direction power application and facilitate the secondary development of users. The module can be applied ...

Disclosed is stainless steel blanking hopper of vacuum dewatering belt conveyor

Disclosed is a stainless steel blanking hopper of a vacuum dewatering belt conveyor. Due to the fact that the gypsum conveying belt conveyor is unstable in gypsum dewatering effect, high in water content in the gypsum initial section and the like, the adhesive belt is difficult to clean, and burdens of on-site maintenance personnel are greatly increased. The device comprises a trapezoid cylinder (2), a horizontally arranged flow guide shaft (4) is arranged at the bottom of the trapezoid cylinder in a penetrating mode, a flow guide plate (5) is welded to the flow guide shaft, the two ends of the flow guide shaft are connected with bearing end covers (8) on the cylinder through bearings, and a redirection positioning disc (9) is fixed to the end portion of the flow guide shaft. And a guide plate adjusting screw rod (3) is welded on the side surface of the cylinder body, is inserted into the arc hole (6) of the redirection positioning disc and is in threaded connection with a nut. The utility ...

Process for single time mining for whole height using 3.15m single hydraulic supporting

This invention discloses a technological process with technical measures for full-height cut of inclined coal layer about 3.15m with a medium thickness in one run realized by using single hydraulic props. It overcomes disadvantages brought about by existing technique for slice stoping of inclined coal layer about 3 m with medium thickness, and realizes safe production and effective mining by taking such measures as adjusting stoping process and labour organization, erecting special bracing frane and preventing props from tilting, changing arrangement of blastholes, implementing full load and overall space managing of work face, and rationally adjusting advancing direction of work face.

Smoke sensing module

The invention relates to a circuit module for detecting smoke concentration in air environment by utilizing a smoke sensor. When the smoke concentration in the air environment exceeds a set alarm concentration of a sensing module, the sensing module outputs a high-level alarm control signal, and at the same time, a light emitting diode twinkles. The smoke sensing module components comprise the smoke sensor, the light emitting diode, a signal processing singlechip, a power source input and signal output port, a power source voltage stabilizer, circuit board positioning screw holes, and the like, and use a 9-20V DC power source to work. The smoke sensing module has the characteristics of high detection sensitivity, wide use voltage range and simple use, and can be used for fireproof/safe detection and control systems of families, factories and commercial places.

Microwave sensor

The invention discloses a microwave sensor which is used for detecting people or object translocation by using a microwave Doppler effect. The microwave sensor is arranged on a 46.5*40mm double-faced circuit board, and the circuit board comprises a microwave oscillator, a mixer, a microwave sending antenna (10) and a receiving antenna (11). The microwave sensor produces a 10.525GHz microwave signal which is used for detecting people or object translocation, and outputting a Doppler induction signal with low frequency. The sending antenna (10) and the receiving antenna (11) of the microwave sensor are made of copper materials and in hemisphere symmetrical structures and welded on the circuit board to ensure that the coverage area of the sensor microwave single is similar to a circle, thus the induction dead zone of the microwave sensor is reduced, and the operation reliability and the response sensitivity of the microwave sensor are greatly improved.

Sensing system and sensing method

The invention provides a sensing system and a sensing method. By sensing first and second temperature sensing values, the sensing system calculates whether the temperature difference of the first and second temperature sensing values is larger than or equal to a preset temperature difference critical value, and whether the progression time is longer or shorter than the preset buffering time. When the above two conditions are satisfied, an analysis signal is generated to a remote system so that monitoring for present working states of all controlled end is carried out, so an energy-saving and comfortable objective is achieved.

Flywheel motor

The invention discloses a flywheel motor which is characterized in that a motor stator (1), a flywheel rotor (2), a motor end cover (3), magnetic coils (1-1) and (2-1), a control circuit unit (4) and sensor detection units (1-2) and (2-2) are included, the magnetic coils (2-1) are arranged on the edge of the energy storage flywheel rotor, and the control circuit unit (4) is connected with the sensor detection units (1-2) and (2-2) through the sensor detection units (1-2) and (2-2). The position of the rotor magnetic coil (2-1) is detected, a magnetic field interacting with the stator magnetic coil (1-1) is generated, the flywheel rotor is prized to rotate, and the flywheel motor is formed.

Ultrasonic sensing module

The invention discloses an ultrasonic sensing module, which is a circuit board using an ultrasonic sensor to detect the movement of a human body and an object. The module comprises such electronic components as a low power consumption regulator (7), an ultrasonic emitting head (8), an ultrasonic receiving head (9), a signal amplifying IC (3), and a signal processing single chip machine (5); 6-20V DC power supply which is regulated and filtered by the low power consumption regulator (7) is provided to the whole module for working; the ultrasonic emitting head (8) sends ultrasonic waves with frequency of 40Khz to outside periodically under the control of the single chip machine; when shielded by the human body or object within the predetermined detection range, the ultrasonic waves will return; and the ultrasonic receiving head (9) will receive the returned ultrasonic waves. The distance from the detected human body and object to the module is obtained by calculating the time taken by the ...

Ambient air quality monitoring system

The invention relates to the technical field of ambient monitoring, in particular to an ambient air quality monitoring system which can rapidly make monitoring analysis on site and comprises a detection base station, a detection master station, a monitoring base station and a monitoring master station, wherein the detection base station comprises one or more electrochemical gas sensors and is used for acquiring polluted gas information, generating corresponding electric signals and outputting the electrical signals; the detection master station is used for receiving the signals sent by the detection base station; the monitoring base station is used for carrying out secondary acquisition on the signals received by the detection master station and analyzing the signals; and the monitoring master station is used for storing and querying analysis results of the monitoring base station. For the ambient air quality monitoring when a pollution incident occurs, specific polluted gas of a polluting ...

Multichannel array signal generating method and device

The invention discloses a multichannel array signal generating method and a device. The device comprises a signal parameter setting module, a shift register, a phase inverter network module, a switch matrix, a low pass filter and a level switch circuit, wherein the signal parameter setting module is used for realizing the selection of signal frequency/ pulse width/ array element position/ wave beam forming direction; the shift register and the phase inverter network module are used for generating multiple paths of delayed/ initial phase equidifferent square signals of which the frequency is f=fclk/2N, wherein fclk is clock signal frequency, and N is the number of the shift register; the switch matrix is used for selecting the square signal with corresponding delay/ initial phase from a square signal assembly according to the needed signal parameter; the low pass filter is used for shaping multiple paths of square signals to obtain multiple paths of sine wave signals; and the level switch ...

Combustible gas sensing module

The invention relates to a circuit module for detecting the concentration of combustible gas in an air environment by using a combustible gas sensor. When the concentration of the combustible gas in the air environment exceeds the stated warning concentration of a sensing module, the circuit module outputs a high-level alarm control signal, and a light emitting diode glitters and a buzzer makes noises simultaneously. The components of the combustible gas sensing module comprise a combustible gas sensor, the buzzer, the light emitting diode, a signal processing single-chip, an electric supply input-output port, an electric supply voltage stabilizer, circuit board positioning screw holes, and the like. The combustible gas sensing module works with a 6-20 V direct current electric supply and is characterized in high detection sensitivity, low power consumption, wide voltage range and simple usage. The combustible gas sensing module can be applied to the sensing control fields of coal mine ...

Timed multi-point automatic irrigation machine system

The invention discloses a timed multi-point automatic irrigation machine system. The timed multi-point automatic irrigation machine system comprises a humidity sensor, an amplifying circuit module, a single chip, a relay, an electromagnetic valve and a power supply. The timed multi-point automatic irrigation machine system uses the single chip to measure and control to gather and process flower growing environment factor information data in real time, and then the processed flower growing environment factor information data is output to control an executing mechanism to control the environment humidity, the water, energy, time and labor are saved, the irrigation is performed according to need, the irrigation system is turned on or turned off according to the requirements of flowers, the structure is simple, the cost is low, and the operation is facilitated; the flower growing soil humidity is detected through the humidity sensor, and the single chip controls the electromagnetic valve to ...

Flywheel rotor motor

The invention discloses a flywheel rotor motor which is characterized by comprising a motor shell (1), a motor stator (2), a rotor magnetic coil base (3), a flywheel rotor (4), a stator magnetic coil assembly (5), a rotor magnetic coil assembly (6), an arc-shaped magnetic field iron core, a Hall sensor assembly 5/6, an induction magnetic column, a control circuit unit (7), a rotor coil slip ring carbon brush device (8) and drive circuits (5-12). The control unit (7) detects signals through the Hall sensor assembly (5/6), controls the conduction and cut-off of the magnetic coils through the drive circuit (5-12), and converts the magnetic field polarities of the magnetic coils of the stator and the rotor, so that the rotor of the motor rotates.

Microwave sensor sensing module

A circuit board which detects the movement of a human body and an object by microwave Doppler effect, is composed of a microwave sensor and a signal amplifying processing circuit and capable of using 6-20V DC power supply for working. Module circuit components comprise: a microwave sensor, a signal amplifying IC, a signal processing single chip machine, a positioning screw hole, a power input and signal output port, a 16-level sensitivity option, 4 kinds of touch manner options, a photosensitive resistance option, a power regulator and the like. The module is characterized by low power consumption, wide voltage range, easy operation, availability for such fields as security protection, electric appliance, and indoor and outdoor equipment sending control.

Production technology of purslane polysaccharide

The invention relates to a production technology of purslane polysaccharide. The production technology comprises the following steps that: impurities in purslane are removed; purslane is washed, cut into segments, and dried; processed purslane is immersed in water for 30 minutes, and is extracted 3 times through microwave auxiliary extraction; in a vacuum heating condition, pressure reduction concentration is carried out on the purslane extract, such that a condensed purslane extract is obtained; a small amount of ethanol is added to the condensed purslane extract, and the mixture is stirred and well-mixed; the mixture is then stood for 24 hours, and a precipitate is obtained; the precipitate is diluted with a proper amount of water; chloroform and n-butanol are added to the diluted precipitate, and the mixture is mixed and oscillated for 30 minutes. Obtained protein-removed crude purslane polysaccharide is diluted with a small amount of water, and the diluted crude purslane polysaccharide ...

Human body infrared induction module

The invention discloses a human body infrared ray induction module, which comprises a stabilizer (6) with low power consumption arranged in a same circuit board, a pyroelectric sensor (1), a Fresnel lens (2), a processing IC (7) and a lowpass filter; wherein the Fresnel lens (2) is arranged in the pyroelectric sensor (1); direct current power supply is stabilized and filtered by the stabilizer (6) with low power consumption to supply power to the pyroelectric sensor (1) and the processing IC (7); the signal inducted by the pyroelectric sensor (1) is input to the processing IC (7) through the lowpass filter; the signal is amplified and undergoes signal comparison and logic control to realize the conversion from sensor signal voltage to logic level; and eventually, the control signal level is output. After being modularly designed by the invention, the pyroelectric sensor can work with direction power application and facilitate the secondary development of users. The module can be applied ...