85 results about "Light Cell" patented technology

The invention discloses a photovoltaic power generation support with an angle adaptive adjustment function, and belongs to the technical field of solar photovoltaic power generation. Comprising a support, a mounting frame and a photovoltaic panel, a rotating frame and a fixing rod are arranged at the top end of the support, and double-shaft adjustment is achieved through an electric scissor jack on the support frame and a turnover adjusting mechanism between a T-shaped adjusting frame and the mounting frame. Four groups of silicon photocells are arranged at the top end of the photovoltaic panel up, down, left and right to serve as photosensitive sensor assemblies, and after signals are transmitted to a controller, first and second servo motors (integrated speed reducers) are driven to control overturning and pitching actions respectively. During working, the silicon photocell collects light intensity difference in real time, the controller calculates solar azimuth deviation, the adjusting mechanism adjusts the pitch angle and the azimuth angle of the photovoltaic panel in a linkage mode, and a'detection-adjustment-feedback 'closed loop is formed. Through double-shaft self-adaptive adjustment, the light energy receiving efficiency is improved, and the silicon photocell array is high in anti-interference capacity, high in driving precision, compact in mechanical structure, low in cost and suitable for photovoltaic systems of different scales.

The invention discloses a hollow glass thermoelectric integrated device for a photovoltaic curtain wall, and belongs to the technical field of photovoltaic equipment. The photovoltaic thermoelectric assembly is mounted in the outer frame; and the sealing sliding frame is connected to the interior of the outer frame in a sealed and sliding mode, a glass plate is installed in the sealing sliding frame in a sealed mode, a sealed hollow cavity is defined by the sealing sliding frame, the glass plate, the photovoltaic thermoelectric assembly and the outer frame, and a plurality of telescopic rod installation sleeve frames are fixedly connected to the interior of the outer frame. The micro electric telescopic rod and the sealing sliding frame are arranged to drive the hollow cavity to stretch out and draw back, the hollow cavity expands at high temperature, the heat insulation layer is formed while the volume is increased and the pressure is reduced, the influence of external high temperature on the efficiency of the silicon photocell is reduced, and the heat conduction is enhanced and the waste heat utilization rate is improved while the volume is shrunk at low temperature to prevent negative pressure; meanwhile, when the drying agent is regenerated, the hollow cavity is firstly driven to expand and depressurize, so that nitrogen in the drying box can be reduced.

The utility model provides an automatic calibration detection device for a servo encoder, which belongs to the technical field of encoder calibration and comprises a bearing platform and a control module, a calibration platform is arranged above the bearing platform, and a driving mechanism and a calibrated motor mounting mechanism are arranged between the bearing platform and the calibration platform. The control module comprises an FPGA (Field Programmable Gate Array) microprocessor, a power supply module and a driver control module, and the FPGA microprocessor is connected with an encoder of a motor to be calibrated through a signal interface of the encoder to be calibrated; and the driving module is respectively connected with a rotary driver and a high-precision encoder of the driving mechanism through a driver UVW interface and a driver encoder interface of the servo driver. According to the device, MTA and MTB code channel signals are acquired through electric signals, whether a code disc code channel is aligned with a photocell or not is judged, and the reliability and the consistency of the servo motor are improved.

The invention provides an energy-information collaborative optimization system and optimization method.The optimization system comprises a reverse communication module, a collaborative control unit, a pump laser and an optical phase conjugation module which are connected in sequence, and the reverse communication module is connected with a receiving end of an optical fiber energy-information co-transmission system; the optical phase conjugation module is used for acquiring output electric power of a receiving end photocell and a communication performance index for representing communication quality, and is arranged at a midpoint position of an optical fiber link; the cooperative control unit is used for reading the output electric power of the photocell and the communication performance index acquired by the reverse communication module and dynamically adjusting the output of the pump laser based on the output electric power of the photocell and the communication performance index, so that the phase conjugation efficiency of the optical phase conjugation module is changed; therefore, the value of the comprehensive performance function is maximized. According to the energy-information collaborative optimization system and optimization method, collaborative optimization of communication quality and energy transmission efficiency can be realized.

The invention discloses a high-voltage 1064nm InGaAs laser battery, an epitaxial structure of the laser battery comprises a substrate, and a GaAs buffer layer, an AlGaAs tunneling junction, an AlGaInAs gradient layer, an (N-1)-junction GaInAs sub battery, an (N-1)-th GaInP window layer, an Nth-junction GaInAs sub battery, an Nth GaInP window layer and a GaInAs cap layer which are arranged on the substrate in sequence, and the GaAs buffer layer, the AlGaAs tunneling junction, the AlGaInAs gradient layer, the (N-1)-th GaInAs sub battery, the Nth GaInP window layer, the Nth GaInP window layer and the GaInAs cap layer are arranged between the first GaInAs sub battery and the (N-1)-th GaInAs sub battery. A GaInP window layer and an AlGaInAs tunnel junction are arranged between two adjacent GaInAs sub-cells from bottom to top, and when N is greater than or equal to 9, the open-circuit voltage of the laser cell can reach more than 7V. According to the invention, the AlGaInAs buffer layer with the gradient In component is adopted, and the 1064nm laser cell with the GaInAs material grown on the GaAs substrate is superior to a multi-junction 808nm laser cell.

The invention discloses a laser battery test system, which is used for measuring the photoelectric conversion efficiency of a laser battery under a high-power laser irradiation condition, and comprises a laser power test device and a laser battery test device, the laser power test device comprises a laser light barrier and an optical power meter, and is used for calculating the laser power; the laser battery testing device comprises a laser battery substrate, a first adapter plate, a cooling heat dissipation plate and a battery management system and is used for tracking the maximum output power of a laser battery. And the photoelectric conversion efficiency of the laser battery is the ratio of the maximum output power of the laser battery to the laser power. According to the invention, the problem of high-power laser power measurement is solved, the laminar flow path of the cooling heat dissipation plate is utilized to efficiently cool the temperature, the performance of the laser battery is prevented from being reduced, and the advantages are obvious.

This invention discloses a frustum-shaped flexible photoelectric energy conversion module, comprising an optical fiber connector, a housing, and a photovoltaic cell. The optical fiber connector is fixedly disposed on the top of the housing. A frustum-shaped cavity is formed within the housing, and the photovoltaic cell is fixed within the cavity. The photovoltaic cell is a three-dimensional flexible energy transfer chip comprising multiple sub-cells connected in series. Each sub-cell comprises multiple arrayed nanowires with a radial PIN structure. A wire interface is provided on the housing. The input end of the photovoltaic cell is connected to an external input device via the optical fiber connector, and the output end of the photovoltaic cell passes through the wire interface and is connected to a power-consuming device. In this invention, the use of a nanowire array structure for the sub-cells increases the specific surface area, expands the longitudinal absorption area, saves projected area, reduces volume, and improves heat dissipation. Simultaneously, the nanoarray structure can significantly improve the light-harvesting capability and charge separation efficiency of the cell.

The invention provides a photovoltaic-thermoelectric laminated laser cell based on low-thermal-conductivity nanocrystalline embedding and a preparation method thereof. The laser cell is sequentially provided with a conductive substrate, an electron transport layer, a cesium-lead-bromine-based optical active layer, a carbon electrode layer, heat-conducting glue and a thermoelectric module from top to bottom, and the cesium-lead-bromine-based optical active layer contains modified nanocrystals with low thermal conductivity. According to the photovoltaic-thermoelectric laminated laser cell embedded based on the low-thermal-conductivity nanocrystals, when laser is subjected to high-intensity irradiation, a thermoelectric part in the laminated laser cell enables the photovoltaic cell to work in a better temperature region by reducing the working temperature of the photovoltaic cell; and the embedding of the low-thermal-conductivity nanocrystalline further reduces the working temperature of the photovoltaic module and isolates more heat in the thermoelectric module so as to generate more electric energy, so that the photoelectric conversion efficiency of the whole power generation device is improved, the working stability of the laminated laser battery is enhanced, and the service life of the laminated laser battery is prolonged.

The invention provides an optical fiber energy and signal co-transmission system and method, and the system comprises a dual-wavelength laser source, a co-fiber transmission optical fiber, and a sensor node which comprises a wavelength division multiplexer, a photocell, a super capacitor and a node central processing chip. The dual-wavelength laser source is arranged on a transformer substation side and is used for emitting composite light of energy light and communication light; the composite light is transmitted and separated through the common-fiber transmission optical fiber and the wavelength division multiplexer respectively; the photocell is used for converting energy light into electric energy and storing the electric energy in the super capacitor; and the node central processing chip is used for receiving the separated communication light and responding to a corresponding signal instruction, and is also used for detecting the voltage at the two ends of the super capacitor and adjusting the working mode of the sensor node according to the voltage. According to the optical fiber energy and signal co-transmission system and method, the problems of difficult energy supply and limited communication distance of a remote node of the traditional power Internet of Things are solved, and the integration level and reliability of the system are improved.

The application provides a preparation process of a high-conversion photovoltaic panel, and belongs to the technical field of photovoltaic panel preparation. The process solves the problem that the prior art does not have a process flow for small-scale trial processing of photovoltaic panels to trial-produce high-conversion photovoltaic panels. The preparation process of the high-conversion photovoltaic panel comprises the following steps: selecting a square metal back plate, an insulating plate and a photovoltaic cell plate, pasting the insulating plate on the metal back plate and pasting the photovoltaic cell plate on the insulating plate, and then pressing and fixing to form a photovoltaic panel base material, and then sequentially applying a polyvinyl butyral layer, a polyolefin layer, a polystyrene and polycarbonate polymer layer and an oxide layer on the surface of the photovoltaic panel base material. Compared with the prior art, the process adopted in the application is convenient to schedule, and the trial production can be more conveniently carried out during the processing process to obtain the trial production effect.

The invention provides a visible light communication, position awareness and energy collection integrated method based on OFDM, and relates to the technical field of visible light communication. The method comprises the following steps: at a sending end, performing OFDM modulation on user information to be sent to generate an OFDM signal, and sending the OFDM signal to a receiving end through a plurality of LEDs; at a receiving end, adopting a silicon photocell as a photoelectric detector to receive the OFDM signals sent by the plurality of LEDs to obtain received signals; at a receiving end, separating a direct-current component and an alternating-current component in a received signal by adopting an alternating-current and direct-current separation circuit, and performing energy collection on the separated direct-current component; at a receiving end, processing the separated AC component, extracting a positioning subcarrier and a communication subcarrier, performing OFDM demodulation on the communication subcarrier, recovering user information, and determining the position information of the user according to the light intensity information contained in the positioning subcarrier and the position information of the LED; in this way, communication, location awareness and energy harvesting functions can be provided for users at the same time.

The invention relates to an intelligent window power supply control system based on photovoltaic driving, which comprises a main power supply circuit, a standby power supply circuit and a load circuit, and is characterized in that the main power supply circuit comprises a photocell pack, a storage battery pack, a combined socket and a contactor, and the standby power supply circuit comprises a frequently-used power supply, a terminal strip, a fuse, a contact switch, an AC / DC converter and a rectifier diode; the load circuit and the AC / DC converter are arranged in parallel, the load circuit comprises a motor and a solid-state relay, power storage is provided for the storage battery pack through the photocell pack, natural resources are reasonably utilized, and the power consumption cost is saved; a load circuit is assembled on the standby power supply circuit, so that the problems that a power supply is easily influenced by weather factors, so that the circuit is unstable, and an intelligent window system based on photovoltaic driving is easily damaged are solved; the green power connection head of the first combined socket and the green power connection head of the second combined socket are connected with the storage battery pack in parallel and are arranged in a vacant mode, multiple groups of load circuits can be loaded in parallel, and each group of circuit works independently and does not influence each other.

An intraoral scanner includes a projector unit configured to emit light at least onto a dental object of a patient; an image sensor configured to acquire reflected light from at least the dental object; a battery for powering the intraoral scanner; a processor unit configured to process the reflected light into one or more 2D images and / or 3D images; a wireless interface configured to communicate with an external device the one or more 2D images and / or 3D images, a motion sensor configured to sense a motion of the intraoral scanner; a timer unit; and a power management unit configured to reduce the power consumption of the intraoral scanner based on a motion signal provided by the motion sensor and a timer signal provided by the timer unit.Buchanan

The invention discloses a solid-state relay circuit with a quick turn-off function in the technical field of integrated circuits, which comprises a photovoltaic generation chip, a light-emitting input module and a first photocell group, and is characterized in that the photovoltaic generation chip comprises a first photocell group; the light-emitting input module comprises a first input control pin INP and a second input control pin INN, and one end of the first input control pin INP is connected with the anode of the light-emitting diode D1. According to the invention, an independent second photocell group which is not limited to two sections is provided for a depletion transistor N1, the transistor N1 can be turned off, meanwhile, a first resistor is used for rapidly discharging a parasitic capacitor which is connected in series with a first photocell and a second photocell and a grid parasitic capacitor of the MOS transistor N1, and a diode D2 and a triode Q1 are arranged, so that the voltage of the transistor N1 is reduced. And the discharge current of the PVG chip can be further improved.

The utility model is suitable for wireless charging technical field provides a wireless charging device and door lock, the wireless charging device includes transmitting end and receiving end, and receiving end includes photocell, and transmitting end includes main casing, visible light beam emission part, charging light beam emission part and angle adjusting assembly. When charging work is carried out, can irradiate the charging light beam that charging light beam emission part emits on photocell, and photocell will convert the energy carried in charging light beam into electric energy. Visible light beam emission part is still provided with on main casing, and the visible light spot can be formed through visible light beam emission part, and the position of charging light spot can be indicated through visible light spot, so that people can clearly and intuitively determine the position of charging light spot, and when the position of charging light spot deviates, the emission angle of visible light beam emission part and charging light beam emission part is adjusted through angle adjusting assembly, so that the alignment of transmitting end and receiving end is more convenient.

The utility model relates to an electronic control system which can be integrated into a driver and is suitable for commercial or household LED technology public lighting. The system controls on, dimming and off of the lamp within specific time, and time change caused by seasonal change in one year is considered. A satellite real-time clock equipped with a GNSS (Global Navigation Satellite System) geolocation technology, a GPS (Global Positioning System) or other satellite receiving antennas can be selectively provided with a light sensor, so that the satellite real-time clock has autonomy and can track according to a program pre-loaded by a user. The system does not need to use external equipment, such as a photocell, an NEMA base, a modem, a control / monitoring center or an internet data network service, so that the system becomes an innovative technology with greater advantages, specific faults and implementation cost caused by no need of external accessories are reduced, and economic benefits and energy conservation are further maximized.

The application belongs to the technical field of wavelength selective radiators, and particularly relates to a wavelength selective radiator for a thermophotovoltaic system and a preparation method thereof. 12 The wavelength selective radiator for the thermophotovoltaic system is prepared by weighing Er2O3 and excess Al2O3 powders respectively, mixing, powdering, blank making, glue discharging, sintering, annealing and grinding. The wavelength selective radiator for the thermophotovoltaic system has high directional transparency, and the whole body can output effective photons that can be utilized, so that the whole material thermal excitation emission of millimeter level thickness is realized. The space volume utilization rate and radiation efficiency of the radiator are high, and the blocky ceramic device has a dense and fine microstructure, good integrity and thermal stability, and meets the long-term high-temperature use requirement.

The invention provides a radiator and a photovoltaic system, and belongs to the technical field of thermal photoelectric isotope nuclear battery heat dissipation, the radiator comprises a cavity and a micro-channel shunting structure, the micro-channel shunting structure is arranged in the cavity, and the micro-channel shunting structure is used for uniformly distributing a coolant in the cavity. The radiator is internally provided with the micro flow channels, a coolant can be allocated to uniformly flow into the micro flow channels, and the radiator is high in radiating capacity and uniform in temperature distribution; heat dissipation can be provided for a high-power photovoltaic system, and it is ensured that a photocell works within a safe temperature.

The invention discloses a concentrating cell module and a preparation method thereof, and the concentrating cell module comprises a concentrating gallium arsenide solar cell, a buffer layer, a first silver-gold plating layer, a front copper foil, a substrate, a back copper foil, a nickel plating layer, a palladium plating layer and a gold plating layer, and the front copper foil and the back copper foil are respectively arranged on the front side and the back side of the substrate. A nickel plating layer, a palladium plating layer and a gold plating layer are sequentially plated on the back face of the back copper foil, a first silver-gold plating layer is plated on the front face of the front copper foil, a cell fixing area is preset on the front face of the front copper foil, a buffer layer is plated on the back face of the light-gathering gallium arsenide solar cell, and the buffer layer is a second silver-gold plating layer or a gold-tin plating layer. The light-gathering gallium arsenide solar cell is placed in the cell fixing area, the positive electrode of the light-gathering gallium arsenide solar cell is connected with the positive electrode of the front copper foil, and the negative electrode of the light-gathering gallium arsenide solar cell and the negative electrode of the front copper foil are conducted through resistance welding. According to the invention, the problem of poor heat dissipation performance of the light-condensing gallium arsenide solar cell in high-power light-condensing application can be effectively solved.

A light intensity measuring device for an ultraviolet disinfection chamber and a related method are provided. The light intensity measuring device for the ultraviolet disinfection chamber includes a base, a photocell array rotatably arranged at the base and configured to simultaneously measure the ultraviolet light intensity in the ultraviolet disinfection chamber at multiple points, and a supporting component arranged at the chamber top of the photocell array.

The utility model relates to the technical field of touch pens, and discloses a multifunctional touch pen and conference display equipment. The multifunctional touch pen comprises a pen body, and a remote control chip is arranged in the pen body; the pen point is arranged at the front end of the pen body, an infrared emitter electrically connected with the pen point is arranged on the pen point, and when the pen point is pressed, the infrared emitter is controlled to emit touch infrared light; the remote control function key is arranged on the pen body, the remote control function key is electrically connected with the infrared emitter through the remote control chip, and when the remote control function key is operated, the infrared emitter is controlled through the remote control chip to emit remote control infrared light; the battery is arranged on the pen body, one end of the battery is connected with the pen point and the remote control function key, and the other end of the battery is connected with the infrared transmitter and used for supplying power to the infrared transmitter. On the basis that miniaturization of the touch pen is considered, the response speed of the remote control function can be increased.

The invention relates to the technical field of energy collection, in particular to a self-cleaning all-weather energy collection intelligent building material and application, the self-cleaning all-weather energy collection intelligent building material comprises a photocell unit which sequentially comprises photovoltaic cells, conductive layers and a packaging plate, and the conductive layers are arranged in intervals of the photovoltaic cells; the TENG unit covers the photocell unit and comprises an electrode layer and a friction layer; the electrode layer is consistent with a conducting layer of the photocell unit in shape and arrangement, and the friction layer covers the electrode layer and is provided with a rotating blade mounting hole; the rotating blade unit comprises a mounting shaft and a fan-shaped rotating blade, the mounting shaft is fixed to the mounting hole of the friction layer, and thin cylindrical strips arranged in an array mode are arranged on the lower surface of the rotating blade; the solid-solid, gas-solid and liquid-solid contact electrification phenomenon is used, all-weather energy collection is achieved through cooperation with the photocell, the thin cylindrical strips of the blades play a self-cleaning role, the service life of the device is prolonged, and efficient energy conversion and electric quantity supply are achieved.

This invention provides a photovoltaic-thermoelectric hybrid laser cell based on carbon electrodes, comprising an insulating plate, a thermoelectric module, and a perovskite photovoltaic module. The thermoelectric module includes several thermocouple units connected in series, and an insulating and thermally conductive layer is provided on the top surface of the thermoelectric module. A clearance notch is provided in the insulating and thermally conductive layer at the position of the first P-type semiconductor. The perovskite photovoltaic module is disposed on the thermoelectric module and has a carbon electrode layer. The carbon electrode layer is placed downwards and in close contact with the insulating and thermally conductive layer. An electrode contact is provided in the carbon electrode layer at the position of the first P-type semiconductor, and the electrode contact abuts against the first P-type semiconductor. The clearance notch avoids the electrode contact. This hybrid laser cell enables the recovery and reuse of waste heat from the cell, improves the overall photoelectric conversion efficiency of the laser cell, and also helps dissipate heat from the photovoltaic module, keeping the laser cell within its optimal operating temperature range, improving output power stability and device lifespan.

The application discloses a cylindrical flexible photoelectric energy conversion module, which comprises a fiber joint, a shell and a photoelectric cell, the fiber joint is fixedly arranged on the top of the shell, a cylindrical cavity is arranged in the shell, and the photoelectric cell is fixed in the cavity through a base, the photoelectric cell is a flexible energy transmission chip, which comprises a plurality of series-connected sub-cells, the sub-cell comprises a plurality of array-arranged nanowires, and the nanowires are radial PIN structures. In the application, the sub-cell adopts the nanowire array structure, the specific surface area is increased, the longitudinal absorption area is expanded, the projection area is saved, the volume is reduced, the heat dissipation is improved, the nanowire array structure can significantly improve the light capturing capacity of the cell and the charge separation efficiency, and the heat dissipation effect is improved through filling of a heat-conducting medium between the base and the cavity.

The invention provides a quantum current measurement high-voltage side structure and measurement device for direct current, and the structure comprises a solid-state spinning color center detection module, a light transmitting module, an optical microwave receiving module, and a photocell. The solid-state spinning color center detection module is used for sensing a magnetic field generated by high-voltage side current, receiving laser transmitted by a low-voltage side and receiving a modulated microwave electric signal transmitted by the optical microwave receiving module; the fluorescent light generated by the solid-state spinning color center under the action of the laser, the modulated microwave and the magnetic field is collected and converted into a first analog electric signal, and then the first analog electric signal is output to the light emitting module; the optical transmitting module converts the first analog electric signal into an analog optical signal and transmits the analog optical signal to a low-voltage side; and the optical carrier microwave receiving module is used for receiving the optical carrier modulation microwave signal from the low-voltage side, converting the optical carrier modulation microwave signal into a modulation microwave electric signal and outputting the modulation microwave electric signal. Therefore, the requirement of a high signal transmission rate for improving the phase precision when modulated microwaves are adopted can be met.

The application belongs to the field of heat dissipation of photovoltaic cells, and particularly relates to a multi-stage heat pipe heat exchange system and heat exchange method of high-multiple light concentration cell group. When the whole system starts to work, the Fresnel mirror located at the upper part focuses the sunlight to the cell group, the cell group converts the light energy into electric energy and stores the electric energy in the storage battery, and the storage battery ensures the operation of the electric heater. The preheated water is first exchanged through the surface of the cell group, the back of the cell group is provided with a heat collecting cavity to collect the high-temperature heat generated by the Fresnel light concentrator to the cell, and the controller controls the multi-stage heat pipe group to exchange heat with the heat collecting cavity through the feedback of the temperature sensor for different heat flow densities; the condensing end of the heat pipe is provided with a heat exchange box, the water after heat exchange is stored in a water storage tank, and the water storage tank is connected with a user end. The device effectively utilizes the sunlight heat energy in multiple aspects, reduces the cost, and has the characteristics of convenient use, high practicality, low energy consumption and the like.

Method for creating a secure barcode using a processor, comprising: Identifying a primary pattern for a two-dimensional barcode to be printed on a substrate, wherein the primary pattern comprises a set of dark cells and a set of light cells; Identifying a two-dimensional microform, wherein the microform has a size that is no larger than the size of each cell of the two-dimensional barcode; Creating a secondary pattern, comprising a plurality of microforms, by selecting an orientation of the microforms such that the microforms have different orientations when placed in the cells; Overlaying the secondary pattern with the primary pattern so that each microform is positioned within one of the cells of the primary pattern, and so that each cell of one of the sets contains one of the microforms, resulting in a two-dimensional barcode that is secure; and Saving a file containing instructions for outputting the secure barcode with the primary pattern and the superimposed secondary pattern.

According to certain embodiments, an apparatus comprises a housing including a cavity; a socket disposed in the cavity, wherein the socket makes direct contact with a portion of the housing surrounding the cavity; a surge protector disposed on the socket, wherein the surge protector comprises a male interface plugged into the socket, and female interface; and a photocell plugged into the female interface.

The utility model discloses a particle detection module. The key point of the technical scheme is that the particle detection module comprises a main control circuit board, the fairing is fixed on the main control circuit board, and an air inlet and an air outlet are formed in the fairing; the laser shell is fixed on the main control circuit board and is positioned in the fairing; the fan is arranged in the fairing to drive air to flow and penetrate through the fairing; the laser light source is fixed in the laser shell and emits laser towards the interior of the fairing, and the laser penetrates through air flowing through the interior of the fairing; the silicon photocell is fixed on the main control circuit board and located in the fairing, the silicon photocell is used for receiving scattered light rays disturbed by particles, and the silicon photocell is electrically connected with the main control circuit board; the laser light source, the silicon photocell and the fairing are integrated on the main control circuit board, so that the size of the detection module is reduced, the structure of the detection module is simplified, and the detection module is convenient to move.

The invention discloses a photocell-based gas detection mass spectrometer and a working method thereof.The photocell-based gas detection mass spectrometer integrates an avalanche diode single photon measuring unit and a trans-impedance amplifier measuring unit, and different detection modes can be selected according to the signal intensity of photon signals of ion flow corresponding to gas to be detected; wherein the detection limit of avalanche diode single-photon measurement is as low as that of a single photon, and the measuring range of the trans-impedance amplifier for current measurement is as high as 1mA, so that the combination of avalanche diode single-photon measurement and trans-impedance amplifier measurement can realize measurement of gas ions with different concentrations, thereby increasing the detection range; meanwhile, during photon counting, a photomultiplier does not need to be used, so that the cost can be reduced; besides, during operation, the operation temperature of the photocell is adjusted to be lower than the preset temperature, so that generation of dark current can be reduced by refrigerating the photocell, interference to current signals is reduced, and the signal-to-noise ratio of the signals is increased.