32results about How to "Avoid working abnormally" patented technology

The invention belongs to the technical field of new energy automobile power supply safety, and particularly relates to a battery management system and a vehicle controller, the battery management system comprises a high-voltage loop used for cooperating with a battery to supply energy through external discharge or charge energy storage, and the high-voltage loop is provided with a plurality of different relays, different relays cooperate with each other so that the high-voltage loop can be switched between different working conditions. The high-voltage sampling module is used for acquiring voltage signals at different sampling points on a high-voltage loop; the control module is in communication connection with the high-voltage sampling module and is used for carrying out fault diagnosis on different relays according to voltage signals fed back by the high-voltage sampling module; and the control module is also used for monitoring the working state of the high-voltage sampling module so as to carry out reset operation on the high-voltage sampling module when the high-voltage sampling module breaks down. According to the invention, the abnormal fault of the high-voltage sampling chip can be identified and reset in time, the reliability of the high-voltage sampling chip is improved, and the safety and stability of a battery high-voltage loop are ensured.

The invention provides a control method, a control device and a switching power supply. The control method comprises the following steps: a current sampling step: sampling a first voltage signal representing the magnitude of the current flowing through the boost inductor; a comparison output step: in each switch work period, comparing the first voltage signal with two different thresholds in the current power frequency half period to generate a first pulse signal and a second pulse signal; and an identification execution step: identifying whether the first pulse signal exists or not, if so, taking the first pulse signal as a trigger signal of the high-frequency main pipe, and otherwise, taking the second pulse signal as the trigger signal of the high-frequency main pipe. According to the invention, the problem that the main switch tube of the power factor correction circuit cannot realize zero-voltage switching-on due to inherent time delay in a high-switching-frequency application occasion can be solved.

The invention belongs to the field of circuit application, particularly relates to a secondary voltage feedback system for packaging impedance voltage drop of a ceramic packaging FPGA (Field Programmable Gate Array), and aims to solve the problem that the voltage drop generated by packaging of a ceramic packaging chip cannot be compensated in the conventional method. The method comprises the steps that a sampling point of a feedback loop of a switching power supply is connected to a power supply pin on the back surface of an FPGA chip; the first end of the DAC is connected to the FPGA chip and is used for communicating with the FPGA chip; and the second end of the DAC is connected to an FB pin of a feedback loop of the switching power supply, and is used for outputting current or sucking current, so that the output voltage of the switching power supply is adjusted, and the voltage drop generated by the ceramic packaging FPGA due to packaging impedance is compensated. According to the invention, the voltage compensation of the voltage drop generated by the packaging impedance of the ceramic packaging FPGA is realized, and the stability of the internal voltage of the FPGA is ensured.

The utility model provides an intelligent water meter with a pressurizing function, which relates to the technical field of intelligent water meters and comprises an intelligent water meter main body, a pressurizing pump arranged on one side of the intelligent water meter main body, a box body arranged on one side of the intelligent water meter main body, a filter block arranged on one side of the box body, a filter cavity a arranged in the filter block, and a filter cavity b arranged in the filter block. Filter screens are arranged in the filter cavity a and the filter cavity b; and the pressurizing assembly is arranged between the box body and the pressurizing pump and is used for pressurizing the pipeline. According to the intelligent water meter, water in a pipeline can be pressurized through the pressurizing assembly, meanwhile, a worker can conveniently overhaul or replace a pressure sensor, impurities such as silt or algae in the pipeline can be filtered through the filtering assembly, and meanwhile, in the normal water supply process of the pipeline, the pressure sensor can be conveniently replaced through the filtering assembly. And the filter screen can be replaced and cleaned.

The utility model discloses a level shifter, which comprises a level shifter main body circuit and an RS latch circuit, the level shifter main body circuit is electrically connected with the RS latch circuit, the level shifter main body circuit comprises transistors P1-P6, transistors N1-N8, triodes B1-B2 and parasitic capacitors C1-C2, and the RS latch circuit is electrically connected with the transistors P1-P6, the transistors N1-N8, the triodes B1-B2 and the parasitic capacitors C1-C2. One path of the signal HSDRLV is connected with the grid electrode of the transistor N1 through the phase inverter, the other path of the signal HSDRLV is directly connected with the grid electrode of the transistor N2, and the source electrode of the transistor N1 and the source electrode of the transistor N2 are both connected with GND; the level shifter disclosed by the utility model realizes the conversion from a low-voltage signal in a fixed power supply domain to a high-voltage high-speed clock power supply domain, so that a correct signal is more correct, an error signal cannot enter a final control signal, the abnormal working of the whole circuit is avoided, and particularly, the switching error of a power tube is avoided; and the high-end power tube and the low-end power tube are communicated.

This invention discloses a switching converter and its control circuit and method. The mode switching circuit in the control circuit includes: a first detection module for comparing a loop error signal with a set first reference signal to generate a first enable signal; a second detection module for detecting the system duty cycle and, when the system duty cycle is greater than a set duty cycle, comparing the peak inductor current in the switching converter with a preset peak current to generate a second enable signal; and a switching control module for controlling the switching converter to switch from the normal operating mode to the light-load operating mode when either the first enable signal or the second enable signal is valid. By employing a combination of two detection modes, the light and heavy load conditions of the switching converter can be more accurately determined, thereby avoiding abnormal operation of the switching converter due to misjudgment, ensuring that the system can still enter the light-load operating mode under a large duty cycle, and improving the stability and reliability of the switching converter.

The utility model relates to the field of circuit breakers, in particular to a plug-in circuit breaker. The circuit breaker comprises a circuit breaker body. Two guide assemblies are symmetrically arranged on the circuit breaker body, a mounting rod and a connecting rod are arranged between the two guide assemblies, a switch handle is rotationally connected to the mounting rod, two limiting assemblies are symmetrically arranged on the switch handle, a connecting rod is arranged between the two limiting assemblies, each limiting assembly comprises a ratchet wheel, and the ratchet wheels are fixedly arranged on the connecting rod. The ratchet wheels are meshed with the pawl, the pawl is provided with a bolt, the pawl is fixedly connected with the switch handle through the bolt, the pawl is fixedly connected with one end of the spring, the other end of the spring is fixedly connected with the pressing plate, the pressing plate is fixedly connected with the switch handle, ratchet directions of the two ratchet wheels are opposite, and a control rod is arranged at the pawl end; by arranging a self-locking mechanism of double ratchet wheels and pawls, the problem that a switch of an existing plug-in circuit breaker is easily touched by mistake can be effectively solved.

The utility model discloses an automatic cap screwing machine for laundry detergent processing, which comprises a base, a plurality of baffles, a conveyor belt, a cap arranging machine, a cap screwing motor, a turntable, a control box and a plurality of control buttons, the front side of the top of the base is fixedly connected with a protection box, the control box is arranged in the protection box, and the bottom of the protection box is provided with a jacking mechanism; the jacking mechanism comprises a fixing plate, a threaded column and a fixing block, the surface of the fixing plate makes contact with the surface of the protection box, the threaded column is arranged at the bottom of the fixing plate, and the rear side of the fixing block is fixedly connected with the front side of the base. The problems that most existing automatic cap screwing machine control boxes for cap screwing of bottled laundry detergent containers are not provided with protection structures, when the control boxes do not need to be operated, the control boxes are inconvenient to protect, mistaken collision and misoperation are likely to be caused to the control boxes, and consequently the automatic cap screwing machines work abnormally are solved.

The invention discloses a physical sorting control method for equipment, which comprises the following steps of: when the equipment detects that the equipment is in an A state, confirming that the equipment is main, setting the address of the equipment to be 1, and sending a control signal to a lower port, so that the detection of the next connected equipment is changed from a B state to a C state; when the equipment detects that the equipment is in a B state and does not carry out address configuration, the equipment enters a waiting mode, when the equipment finds that an upper port is changed from the B state to a C state, a command for requesting address configuration is sent to a master, when the master receives the request command, address distribution is carried out, and after the equipment receives the address, a control signal is sent to a lower port; the detection of the next connection device is changed from the B state to the C state, and the above steps are repeated for configuration; after the last equipment is configured, a control signal is sent to the lower port, no response reply is made in 2S, that is, it is confirmed that the equipment is the last equipment, the situation of address repetition of the equipment is effectively avoided, and therefore abnormal work caused by the same equipment address is further prevented.

The present invention discloses a seven-color lamp control circuit, including a switch power module, a battery module and a control module, wherein the battery module is connected to the switch power module, the switch power module and the battery module are both connected to the control module, the control module is connected to the LED four-color lamp module, and the control module includes a B1 switch, a voltage stabilizer, a filter circuit, an MCU, a Q1 transistor, a Q2 transistor, a Q3 transistor and a Q4 transistor, four bias resistors and a B2 switch. The present invention also discloses a control method for controlling the conversion of seven colors by using an MCU to control the occupancy ratio of the four-color lamp module PWM, wherein the control method is simpler and has a good lighting effect.

The utility model discloses an anti-static liquid crystal display screen which comprises a lower iron frame, a reflector plate, a light guide plate, an optical film set, a lower polaroid, a large piece of glass, a small piece of glass, an upper polaroid and a cover plate which are sequentially stacked from bottom to top, and the lower iron frame comprises a bottom plate and a side wall extending upwards from the edge of the bottom plate. The large piece of glass is longer than the small piece of glass and extends outwards to form a step, a driving chip is bound on the upper surface of the large piece of glass located at the step, conductive foam is arranged on the upper surface of the driving chip, and the conductive foam extends outwards to the outer surface of the side wall and the lower surface of the bottom plate. Edge wrapping paper is fixed on the outer surface of the conductive foam. The conductive foam is arranged on the upper surface of the driving chip and extends outwards to the outer surface of the side wall and the lower surface of the bottom plate, so that static electricity on the driving chip can be discharged from the side wall and the bottom plate of the lower iron frame through the conductive foam.

The invention belongs to the technical field of liquid detection, and discloses a liquid detection circuit, a detection meter and a detection method.The detection circuit comprises a detection electrode P1, an oscillation unit and a control unit; the oscillation unit comprises an analog switch U1, and the analog switch U1 is connected with the detection electrode P1 and can be switched into a first oscillation mode or a second oscillation mode; the control unit comprises a main control chip U1, and the main control chip U1 is connected with the oscillation unit and used for generating a control signal to switch the oscillation mode of the oscillation unit and calculating the conductivity of the liquid to be measured according to the first oscillation frequency and the second oscillation frequency obtained through measurement. Through a reference-measurement dual-mode frequency measurement and difference calculation method, the influence of factors such as distributed capacitance and electrode contact difference on a measurement result is fundamentally eliminated, meanwhile, measurement failure caused by signal saturation in a high-concentration solution is avoided, and the measurement consistency can be kept in a wide concentration range of 0-164000 PPM.

The present invention provides a display module and an electronic terminal, comprising a panel having a display area and a non-display area and a gate control chip, wherein a gate driving circuit is provided in the non-display area, and a first output pin and a second output pin of the gate control chip are electrically connected to the gate driving circuit, wherein the gate control chip in the present invention is used to control the second output pin to output a second signal when a first signal output by the first output pin is abnormal, and to control the first output pin not to output the first signal, so as to improve the reliability of the gate driving circuit, thereby improving the yield of the display module.

The present invention discloses a detection device and a testing method for testing the deformation amount of concrete in a low-temperature environment, and relates to the technical field of concrete quality testing; in order to solve the problem of poor test quality; the detection device includes a refrigeration box arranged on the top surface of a bracket, and the interior of the refrigeration box is composed of a refrigeration chamber and a constant temperature chamber from top to bottom; the top outer wall of the refrigeration box is provided with a cover, and the four corners of the bottom of the cover are fixedly connected with guide columns, the guide columns are slidably connected to the inner wall of the refrigeration box, and the bottom ends of the guide columns are connected to the four corners of the top of the partition plate through bolts. The testing method of the detection device includes the following steps: the concrete specimen to be tested is transported to the top of the refrigeration box through the material conveying part one and the material conveying part two, and the cover is raised under the linkage of the material conveying part two. The present invention ensures the test accuracy of the concrete specimen, and avoids the tedious work of repeatedly taking and placing the concrete specimen, thereby improving the test efficiency.

The invention discloses a cylinder cover assembly, an engine and a vehicle. Belongs to the technical field of automobiles, the cylinder cover assembly is used for an engine of a vehicle, the cylinder cover assembly comprises a cylinder cover body and an air inlet manifold, the air inlet manifold and the cylinder cover body are integrally formed so as to reduce the length of the air inlet manifold and improve the air inlet efficiency, the air inlet manifold defines a pressure stabilizing cavity, and an air inlet is formed in the direction from the front end wall of the pressure stabilizing cavity to the rear end wall of the pressure stabilizing cavity. The flow area of the pressure stabilizing cavity is gradually reduced, and the minimum height difference between the pressure stabilizing cavity and the bottom face of the cylinder cover body is gradually reduced in the direction from the far end wall of the pressure stabilizing cavity to the near end wall of the pressure stabilizing cavity, so that air inlet uniformity and combustion consistency of cylinders of an engine are improved, abnormal work of the engine is avoided, and the dynamic property and economical efficiency of the engine are improved.

The invention discloses a double-chip packaging structure based on a double-sided chip-on-film, and belongs to the field of semiconductor packaging, the double-chip packaging structure based on the double-sided chip-on-film comprises a chip-on-film (Tape), double chips, a copper through hole, a circuit layer, a solder mask layer and a glue sealing area, the chip-on-film is of a multi-layer composite structure and comprises a base material, a conductive layer, an insulating layer and an interlayer adhesive, the base material is a thermoplastic PI material; a through hole is formed in the base material, and the manufacturing process of the through hole comprises the steps of forming the through hole through laser processing, coarsening the wall surface of the through hole through plasma etching, forming a copper wall on the wall surface of the through hole through a chemical plating process, and filling copper through a plating process to form the copper through hole; the double chips are inversely packaged on the chip on film through a wafer bump; through the double-sided circuit design, the circuit layout space is doubled, the problem of dense circuits of multi-IC packaging is solved, the manufacturing difficulty and the short circuit risk are reduced, and meanwhile the production cost is reduced.

The present application relates to a method, device, computer equipment and storage medium for completing the above information, which obtains millimeter-wave radar data of a first area collected by a millimeter-wave radar and image data of a second area collected by a visual sensor; inputs the millimeter-wave radar data into a preset first model to obtain first feature information of road objects in the first area; obtains pixel coordinates of road objects in the second area based on the image data, and obtains second feature information of road objects in the second area according to a second model corresponding to the pixel coordinates and the second scanning area. The above method can avoid abnormal operation of the system due to failure of the laser radar, thereby improving the reliability of the system.

The invention discloses a water pump PWM software control method for an instant heating type water dispenser and a corresponding medium and equipment, and the method comprises the steps: S1, receiving a water outlet instruction, and judging whether a water pump PWM historical value corresponding to the current target temperature exists or not; s2, if not, a water pump and a heater are started, the PWM value of the water pump is dynamically adjusted through a PID algorithm according to the difference value between the outlet water temperature and the target temperature till the water temperature stably reaches the standard, and the PWM value is stored as a historical value; s3, if yes, the historical PWM value is directly called to control a water pump and start a heater; and S4, continuously monitoring the water temperature in the quick starting process, and if the water temperature deviates from the target temperature, correcting the historical PWM value to keep the constant temperature. According to the invention, rapid starting is realized by storing and calling the historical PWM value, and time consumed by real-time calculation is reduced; closed-loop control is formed by combining monitoring and correction, long-term stability of the water temperature is guaranteed, and the system adapts to environment and equipment state changes.

The liquid crystal phase shifter, liquid crystal phased array antenna, and driving method provided in this invention include: a plurality of liquid crystal phase shifter units, each configured to connect a data signal line to a first node in response to a first scan signal on a first scan signal line; and a first driving circuit electrically connected to the first scan signal line, configured to output a first scan signal in response to signals from a reference signal terminal and an output enable signal terminal, and to control the first scan signal to slowly switch from a first level to a second level. This allows for large-scale driving of multiple liquid crystal phase shifter units, significantly improving driving capability and reducing the difficulty of the bonding process, thereby improving the reliability and stability of bonding. Furthermore, it enhances the stability of the liquid crystal phase shifter units, preventing abnormal operation due to leakage current, thus improving the performance of the liquid crystal phase shifter.

The invention relates to the technical field of traffic control boxes, in particular to a traffic control modular intelligent case and a control method and system thereof. The method comprises the following steps: monitoring various state parameters and environmental parameters of the case in real time, wherein the state parameters comprise a physical safety state and an electrical state; when it is monitored that the state parameters are abnormal, alarm information is generated; sending the alarm information to a monitoring platform through a selected communication mode; according to the monitored temperature and / or humidity state, an environment adjusting device is controlled to adjust the temperature and / or humidity in the case; and when the commercial power is cut off, the standby power supply is automatically switched. The system comprises a case body, a plurality of functional units freely matched on a standard guide rail, a lightning protection device and a temperature adjusting device. According to the invention, comprehensive intelligent monitoring and active operation and maintenance of the case state are realized, and the reliability, the safety and the maintainability of the traffic control system are obviously improved.

The utility model provides a key structure and electric equipment, the key structure comprises a key cap, a shell, a touch control switch and a waterproof piece, the shell is internally provided with a mounting cavity, the key cap, the waterproof piece and the touch control switch are arranged in the mounting cavity along a first direction, and the waterproof piece abuts against the key cap; the shell is further provided with an installation hole extending in the first direction, the installation hole is communicated with the installation cavity, at least part of the key cap is embedded in the installation hole, the key cap can move relative to the installation hole in the first direction so that the key cap can drive part of the waterproof part to abut against or be separated from the touch switch, and at least part of the side, facing the key cap, of the waterproof part abuts against the shell. And the waterproof piece covers the mounting hole.

The utility model provides a water inlet and outlet control device for non-negative pressure water supply equipment, which belongs to the technical field of industrial automation and comprises a control platform, a cleaning mechanism and a water inlet pipeline, the cleaning mechanism is arranged in an inner cavity of the water inlet pipeline and comprises a hydraulic cylinder, a connecting plate, a sliding groove, a sliding block, a rotator and a cleaning disc, the hydraulic cylinder is fixedly installed at the top of an inner cavity of the water inlet pipeline, the connecting plate is fixedly installed at the bottom of the hydraulic cylinder, the sliding groove is formed in an inner cavity of the connecting plate, the sliding block is movably connected to the inner side of the sliding groove, and the rotator is fixedly installed on the inner surface of the sliding block. By arranging the cleaning mechanism, dirt deposited on the surface of the filter screen can be cleaned in the using process of the device, the filtering effect is ensured, the service life of the filter screen can be prolonged by regularly cleaning the dirt on the surface of the filter screen, the replacement cost is reduced, dirt blockage is prevented, and the water supply quality is ensured; and the filter screen is kept clean, so that the normal operation of the whole water supply equipment is maintained.

The utility model relates to a kind of multi-fuel automatic switching device and engine, comprising: carburetor, pressure reducing valve and control module, the control module includes negative pressure switch solenoid valve, pressure sensor, controller and oil circuit switch solenoid valve, the negative pressure switch solenoid valve with the pressure sensor is set on the pressure reducing valve, the negative pressure switch solenoid valve is connected and controls the on-off of the air inlet, the oil circuit switch solenoid valve is set on the oil inlet pipe of carburetor, the oil circuit switch solenoid valve is connected and controls the on-off of the oil inlet pipe;The controller is according to the gas pressure data of the air inlet control the negative pressure switch solenoid valve, the oil circuit switch solenoid valve.Distinguish prior art, the utility model can avoid gas fuel into carburetor, avoid appearing oil-gas mixed combustion, lead to the situation of engine work not normal appears.

The embodiment of the present application provides a kind of concentration control system of refrigerant water of air conditioner.The system includes: controller, dosing pump, medicine tank, refrigerant water pipeline, refrigerant evaporator and at least one sensor;Medicine tank is provided with refrigerant, and medicine tank is connected with refrigerant water pipeline;Dosing pump is connected with controller, for opening in response to dosing instruction sent by controller;Controller is connected with at least one sensor;Each sensor is arranged in the inside of refrigerant water pipeline;Controller is used to obtain the refrigerant concentration measured by at least one sensor;If it is determined that the refrigerant concentration is less than the first preset concentration value, generate dosing instruction, and send to dosing pump;Refrigerant water pipeline is connected with refrigerant evaporator, and refrigerant water in refrigerant evaporator exchanges heat with refrigerant of air conditioner.The system is used to achieve the effect of automatic monitoring and control of the refrigerant concentration of refrigerant water of air conditioner, improve the control efficiency of the concentration of refrigerant water of air conditioner.

The utility model relates to a crusher technical field especially relates to a kind of crusher feeding adjusting device. Including lifting structure, height adjusting structure and control material structure;Lifting structure is used to lift the material to be broken to certain height after, make it enter control material structure;Height adjusting structure is used to adjust the relative inclination angle between both, when inclination is further enlarged, control material structure height can be further adjusted high;Control material structure is used to receive the material to be broken conveyed by lifting structure, controls the output of feeding to crusher.The utility model can flexibly adjust the size of passageway outlet as needed, accurately controls material flow, avoids the abnormal work of crusher due to feeding, improves crushing efficiency and product quality by the cooperation of the baffle of control material structure and control part;Height adjusting structure lets conveyor and control material structure can be adjusted according to the height of crusher feeding port, and operator can complete positioning and fixing without tool or dangerous action, reduces operation difficulty and security risk.

The utility model belongs to the technical field of controller upper covers, and particularly relates to a dismounting and mounting mechanism and a controller upper cover, the dismounting and mounting mechanism comprises a controller upper cover dismounting and mounting assembly, the controller upper cover dismounting and mounting assembly comprises a first rotating shaft, the outer wall of the first rotating shaft is rotatably connected with a connecting plate, the bottom of the connecting plate is rotatably connected with a dismounting and mounting rod, and the dismounting and mounting rod is fixedly connected with the first rotating shaft. The device comprises a dismounting rod, the bottom of the dismounting rod is provided with a connecting seat, the side of the connecting seat is provided with a rotating seat, one end of the rotating seat is rotatably connected with a limiting block, the device further comprises a controller upper cover main body, the top of the controller upper cover main body is provided with a heat dissipation protection assembly, and the bottom of the controller upper cover main body is connected with a controller cable fixing assembly. According to the utility model, the upper cover of the controller is convenient to disassemble and assemble so as to maintain the interior of the controller, meanwhile, heat in the controller is convenient to dissipate to the outside, and cables in the controller can be properly stored.

The invention provides a cleaning device, an air filter and agricultural equipment, and belongs to the technical field of air filtration. An air filter dust removal pipe is used for covering one end of the air filter; an air flow channel is formed in the air filter dust removal pipe and provided with an air flow inlet and an air flow outlet, and the air flow outlet is formed in the edge of the air filter dust removal pipe and discharges air towards an air inlet net cover on the side wall of the air filter. When the air filter is used, high-pressure air is input from the airflow inlet, conveyed to the airflow outlet through the airflow channel in the air filter dust removal pipe and exhausted towards the air inlet mesh enclosure on the side wall of the air filter, impurities adsorbed on the surface of the air inlet mesh enclosure can be cleaned, and the situation that the air inlet mesh enclosure is blocked, and consequently an engine works abnormally is prevented; and a driver is prevented from getting off to manually clean the surface of the air inlet mesh enclosure, so that the working efficiency is improved. According to the cleaning device provided by the invention, the problem that impurities on the surface of the air inlet mesh enclosure of the air prefilter need to be manually cleaned in the prior art is solved.

This invention discloses a circuit structure for ESD protection of an LCD, including an LCD module and a circuit board electrically connected to the LCD module. The circuit board includes a reset potential stabilization unit electrically connected to the RES reset pin of the LCD module and a power surge protection unit electrically connected to the power supply terminal. The reset potential stabilization unit and the power surge protection unit cooperate to achieve ESD protection for the LCD. The reset potential stabilization unit includes a pull-up resistor, with its first end electrically connected to the power supply terminal and its second end electrically connected to the RES reset pin. The power surge protection unit includes at least one TVS diode connected in parallel between the power supply terminal and ground. This invention can stabilize the RES reset pin level and reduce ESD sensitivity, discharge ESD surges at the power supply terminal, and achieve ESD protection through the cooperation of two units. The circuit is extremely simple and has low modification costs.

The utility model relates to the technical field of audio acquisition equipment, in particular to a glottis instrument structure, which comprises a heat dissipation shell, the heat dissipation shell is provided with a channel penetrating through the front end and the rear end, and the top of the heat dissipation shell is provided with a window; the device tray is arranged in the channel, the two ends, corresponding to the channel, of the device tray are provided with a front panel and a rear back plate respectively, a main board is fixed to the top of the device tray, the front panel is provided with a screen and a switch, the rear back plate is provided with a plurality of accessory interfaces, and the screen, the switch and the accessory interfaces are electrically connected with the main board respectively; the positioning groove is embedded in the window, and the positioning groove, the device tray and the heat dissipation shell are fixedly connected through bolts; a positioning groove is formed in the glottis instrument, a storage groove is hinged into the positioning groove, an opening plate attached to the top of the heat dissipation shell is arranged at the top of the storage groove, the storage groove is integrated in the glottis instrument, storage of accessories such as wires needed by audio sampling is achieved, and therefore the problem of equipment missing in the moving working process is avoided.

The invention discloses a vehicle and a gas system control method and device thereof. A gas system of the vehicle comprises an air compressor, a dryer, a gas storage cylinder and a gas using component which are connected in sequence. The gas system control method comprises the steps that after a vehicle is powered on, the working load rate of an air compressor in a preset time period is obtained; judging whether the working load rate is smaller than or equal to a preset load rate; if yes, the unloading duration when the air compressor is continuously in the unloading state, the environment temperature and the current air pressure in the air storage cylinder are obtained; and according to the unloading duration, the environment temperature and the current air pressure, an icing trigger event of the gas system is determined, and corresponding protection operation is executed according to the icing trigger event. According to the technical scheme, the working stability of the gas system can be improved, and then the running stability and safety of the vehicle are improved.