608results about "Counting mechanisms/objects" patented technology

The invention relates to the technical field of sensors, and discloses a product counting method and system based on a production line, and the method comprises the steps: collecting an on-off signal when a target product passes through a sensor, building a sensor state array to record the on-off signal of the sensor, determining a sensor serial number corresponding to each sensor, and recording the on-off signal of the target product; and according to the sensor state array, judging whether each sensor sequentially acquires complete on-off signals according to the sensor serial number, when each sensor sequentially acquires the complete on-off signals according to the sensor serial number, determining that the target product is a single workpiece and counting, otherwise, detecting an abnormal sensor, and switching to a redundancy counting mode according to the abnormal sensor so as to count the target products. According to the invention, the method can improve the statistical counting precision of the production line, improves the anti-interference capability of the statistical counting of the production line, improves the counting stability, and reduces the maintenance and management cost of the production line.

The invention relates to the technical field of yield control, in particular to a neutron generator yield control method and system. The method comprises the following steps: establishing a polynomial model by using historical yield data to predict a target efficiency attenuation factor; dynamically determining neutron event boundaries in the pulse integral value and the pulse width two-dimensional characteristics based on the attenuation factor, and counting the neutron event boundaries; the yield deviation and the change rate are calculated, and when the deviation exceeds a threshold value, feedforward compensation is carried out on the target yield; and selecting a three-dimensional lookup table, an input deviation, a change rate and a current high voltage according to the interval to which the attenuation factor belongs, and cooperatively determining the adjustment amount of the ion source current and the accelerator high voltage. According to the scheme, the measurement and control problems caused by aging of the target piece can be solved, and the precision, the response speed and the long-term stability of yield control are improved.

The invention provides a seawater chlorophyll a concentration three-dimensional remote sensing detection method, medium, equipment and product, and relates to the technical field of ocean remote sensing. The method comprises the following steps: acquiring satellite remote sensing data and photon counting laser radar data of a to-be-detected area; obtaining a seawater chlorophyll a concentration profile based on the diffusion attenuation coefficient; the method comprises the following steps: constructing an improved VGGNet model which comprises a multi-branch VGGNet, replacing standard convolution in the VGGNet with depth separable convolution, and introducing an SE attention mechanism into a backbone network; the time and position variables, the satellite remote sensing data, the photon density, the backscattering coefficient, the diffusion attenuation coefficient and the water depth serve as input variables of the model, the seawater chlorophyll a concentration profile serves as a target variable, and the model is trained; and inputting new satellite remote sensing data into the trained model to generate three-dimensional distribution prediction of the seawater chlorophyll a concentration. The method can better extract the features in the data, improves the prediction precision of the model, and is suitable for a complex water body environment.

The invention discloses an easy-open lid accurate counting device and method, the device comprises a chute, a photoelectric sensor and a gland assembly, and the gland assembly comprises a gland block, an optical axis, a spring and a pulse air source assembly; a directional separation spraying hole is formed in the bottom of the cover pressing block, when high-pressure gas conveyed by the pulse gas source assembly is sprayed out from the directional separation spraying hole, thrust towards the photoelectric sensor is applied to the to-be-counted easy-to-pull covers, and the easy-to-pull covers are pushed to enter a counting area one by one for counting; and the counter-acting force generated by gas injection drives the cover pressing block to move upwards along the optical axis, the spring is compressed, and therefore the adjacent clamped easy-to-pull covers are separated through the knocking force. According to the technical scheme, the directional separation spraying holes are matched with the pulse air source, the functions of air injection cover pushing and counter-acting force knocking separation are achieved at the same time, the clamping problem of the adjacent easy-to-pull covers is effectively solved, it is ensured that the easy-to-pull covers pass through the counting area one by one, and the counting precision is remarkably improved.

A counting unit is provided for use in an electrical device. The counting unit is configured to count a thermal event such as an autoclave cleaning operation when the electrical device is not electrically powered. In one aspect, the counting unit includes a rotary member and an actuator, the actuator is configured to change shape from a first configuration to a second configuration when subjected to a predetermined temperature, wherein in the second configuration, the actuator engages the rotary member so as to rotate the rotary member. In another aspect, the counting unit includes a plunger, a drive and a heat resistant arm configured to release the plunger during a thermal event and retain the plunger when the electrical device is cooled down.

The invention belongs to the technical field of automatic monitoring of welding equipment, and discloses a welding machine counting and welding omission prevention monitoring system, which comprises a data acquisition module for performing multi-channel parallel acquisition on welding operation state data based on a time slice polling mechanism in a welding process, the collected welding operation state data are embedded into the parameter hash signature stream to form a tamper-proof real-time signal chain; the abnormal state judgment module is used for mapping the real-time signal chain into a state transition hypergraph, analyzing time sequence phase deviation between state nodes based on a time window sliding resonance detection algorithm, identifying a welding skipping related abnormal state and marking an abnormal topological position; the welding spot counting correction module is used for correcting the current welding spot counting value in real time when an abnormal topological position is detected, introducing a cost benefit balance factor between different nodes and outputting a corrected credible welding spot counting value; intelligent monitoring of welding and missing welding prevention are achieved, and operation safety and production efficiency are improved.

The invention relates to an intelligent asparagus lettuce seed harvesting-managing all-in-one machine based on machine vision, and belongs to the technical field of agricultural planting and harvesting. A harvesting mechanism, a storage mechanism, a seeding mechanism, a counting mechanism and a bundling mechanism are mounted on the integral frame. Through the storage mechanism, the sowing mechanism, the counting mechanism and the bundling mechanism, work of picking, counting, bundling, planting and the like of lettuce can be achieved. The equipment is simple in mechanism, environment-friendly in design, more reasonable in man-machine interaction interface, easy to operate, quick to master, capable of achieving multifunctional integrated operation, low in cost and high in control precision. The device is mainly composed of an overall frame, a harvesting mechanism, a storage mechanism, a sowing mechanism, a counting mechanism, a bundling mechanism, a pneumatic mechanism and a moving mechanism, and is high in reliability, high in precision and accurate in operation.

The invention discloses an automatic counting information synchronization method suitable for multiple types of cargo trays, and relates to the technical field of intelligent warehouse management, and the method comprises the following steps: inputting a single-piece standard weight parameter of a target cargo in an industrial touch screen, and binding the cargo information with a tray identifier through bar code recognition; goods to be measured are sequentially placed on the weighing platform provided with the four-point symmetrically-distributed weighing modules, the weighing modules collect total weight data of the goods in real time, and impact signals generated in the weighing process are dynamically filtered. According to the invention, the weighing precision is improved through structure optimization and dynamic filtering, automatic and accurate counting of the number of goods is realized in combination with a residual error correction algorithm, the security and completeness of data synchronization are guaranteed by adopting an encrypted two-dimensional code technology, real-time updating and traceable management of inventory information are realized, and the system is convenient to use. And the stability and the management efficiency of the intelligent warehousing system are comprehensively improved.

The invention relates to the technical field of image processing and extremely weak light imaging, and particularly provides a photon counting image reconstruction method and system, and the method comprises the steps: determining a target threshold value based on the adjustment of a dynamic adjustment coefficient under different illumination or gain conditions based on an initial threshold value; counting a first photon number of a single photon signal in the background image and a second photon number of the single photon signal in the signal image based on a target threshold, and generating noise photon number statistical distribution and signal photon number statistical distribution to determine a dynamic photon number processing interval; and performing time-space joint accumulation on the pixels conforming to the dynamic photon number processing interval, generating a two-dimensional photon accumulation matrix, and converting the two-dimensional photon accumulation matrix into a gray level image to form a single group of reconstructed gray level images. According to the method, real signals can be effectively extracted, the influence of dark noise, shot noise and readout noise is suppressed, zero noise detection is realized, and finally, the dynamic range, the signal-to-noise ratio and the stability of the image are remarkably improved through single-group image reconstruction and multi-group integration processing.

The invention relates to a photon pulse sequence atlas construction method, system and device based on a photon counting method, computer equipment and a readable storage medium. The method comprises the following steps: acquiring a plurality of photon counting data of a target insulation defect based on a photon counting method, constructing a phase resolution photon counting atlas based on the photon counting data, and splicing and sorting the phase resolution photon counting atlas to obtain a corresponding photon pulse sequence; the photon amplitude of each alternating current period can be obtained based on a photon pulse sequence built by a plurality of adjacent alternating currents, distribution characteristics of photon counting data can be obtained by combining a kernel density estimation formula, and a corresponding photon pulse sequence map can be built based on the distribution characteristics of the photon counting data. Therefore, a worker can directly distinguish the types of the insulation defects through the photon pulse sequence atlas.

The invention discloses a counting tray, belongs to the technical field of trays, and solves the problem that the counting mode of manual visual inspection counting is extremely easy to have errors, and finally the counting of the number of the trays is wrong. Comprising a tray, a radio frequency card fixedly connected to the side wall of the tray, an identification circuit and a counting circuit, the identification circuit sends an identification signal once after identifying the radio frequency card once, and the counting circuit is coupled with the identification circuit and records and displays the number of times once after responding to the identification signal once. In the carrying process of the forklift, when the radio frequency card arranged on the side wall of the tray passes through the Rfid reader, data are captured and sent to the controller, then the trigger circuit activates the counting circuit after verifying the signal so as to automatically count and display on the displayer, and therefore automatic statistics is achieved when goods are placed, and the risk of manual statistics errors is reduced.

The invention discloses a superfine pitch bonding wire chopper structure with a side wire incoming function and a using method thereof, and relates to the technical field of semiconductor packaging, the superfine pitch bonding wire chopper structure comprises a workbench, a lifting platform, a lifting counting mechanism, a switching mechanism, a pay-off pipe, a chopper mechanism and a smoke suction mechanism, and the lifting platform is slidably arranged between the workbench and a mounting frame; the lifting counting mechanism is arranged on the mounting frame, the switching mechanism is arranged on the lifting table, the chopper mechanism is arranged on the lifting table, and the smoke suction mechanism is arranged on the lifting table. By means of the arrangement mode that the lifting counting mechanism, the switching mechanism, the pay-off pipe, the chopper mechanism and the smoke suction mechanism are matched, after the designated number of times is reached, the chopper is switched through the switching mechanism, bonding quality reduction caused by abrasion is avoided, the switched chopper is cleaned, and the bonding quality is improved. And meanwhile, the smoke suction mechanism can suck cleaned impurities and possibly generated smoke, smoke and chippings are effectively collected, manual intervention is reduced in the whole process, and the production efficiency is improved.

The invention relates to the technical field of counting equipment, in particular to a mechanical linkage type counter which comprises a main support and a rack, a main shaft is fixedly installed on the inner wall of one side of the main support, the outer side of the main shaft is rotationally connected with a unit digit wheel and a ten digit wheel in a sleeving mode, and the ten digit wheel is arranged between the unit digit wheel and the main support. A single-position ratchet wheel is fixedly installed on the outer wall of the side, away from the main support, of the single-position digit wheel, a ten-position ratchet wheel is fixedly installed on the outer wall of the side, away from the main support, of the ten-position digit wheel, and the shifting wheel mechanism is arranged in the main support and used for promoting the shifting wheel mechanism to shift the single-position ratchet wheel to rotate when the rack moves. The counter realizes decimal precise counting through multi-component linkage by means of the ratchet wheel and the pawl, and is stable and reliable; power dependence is avoided, and various environments are adapted; the structure is simple, installation and debugging are easy, and the reading port facilitates reading; two-digit counting is achieved through a simple structure, cost is reduced, efficiency is improved, and an innovative scheme is provided for mechanical counting.

The utility model provides a cigarette package showing stand, and belongs to the technical field of commodity display devices. The problem of how to improve the use convenience is solved. The cigarette packaging showing stand comprises a stand body, the stand body is in a long strip shape, a pushing base is connected into the stand body in a sliding mode in the length direction, a counting coil spring is arranged on the outer side wall of one end of the stand body, a plurality of counting marks arranged at intervals are arranged on the counting coil spring in the length direction, and one end of the counting coil spring is connected with the pushing base. According to the cigarette package showing stand, the use convenience can be improved.

The utility model discloses an infrared-based pedestrian flow in and out statistical device which comprises a fixed seat, an exhaust fan, a fixed plate, a slot, a mounting plate, a pyroelectric infrared sensor, a locking groove and a linkage seat. The beneficial effects of the utility model are that the device measures the movement of a human body through the pyroelectric infrared sensor, comprehensively judges and sends two messages of a person entering and a person exiting through the two probes, further realizes the statistics of people flow entering and exiting, and in the daily maintenance process of the device, if the device needs to be split, the device can be conveniently and rapidly maintained. When the mounting plate is mounted, the limiting rod slides in the limiting sliding groove for unlocking by pushing the mounting plate, the linkage seat slides under the action of the elastic force of the spring at the moment, the locking rod is separated from the locking groove, the mounting plate slides out of the inserting groove at the moment to achieve the quick splitting effect, and vice versa, the mounting plate is mounted; through the structure, a worker can quickly disassemble and assemble the pyroelectric infrared sensor, and the working efficiency of the device during daily maintenance is greatly improved.

This application discloses a bearing outer ring counter, relating to the field of bearing processing technology. It includes a chassis with a protective door installed on its side. A receiving tray is installed on the top of the chassis, and a feeding hopper is installed on the top of the receiving tray. A feeding pipe is fixed to the surface of the receiving tray and is connected to it. A counting sensor is installed at the end of the feeding pipe away from the receiving tray. A control panel is provided on the side of the receiving tray, and the control panel is electrically connected to the counting sensor. Ventilation holes are provided on the side of the chassis. A straightening structure for straightening bearings is provided inside the receiving tray. This straightening structure can straighten the processed bearings, allowing them to enter the feeding pipe in an orderly manner. This effectively reduces the counting inaccuracies caused by bearing accumulation during feeding, improves the counting accuracy of the counter, and effectively reduces the problem of material jamming or blockage at the feeding pipe, making the feeding of bearings smoother.

Dose counter for a dispensing device, dispensing device, and associated dispensing assembly. This dose counter (100) for a dispensing device (20) for multiple doses of a product comprises a first graduated rotating element (110), a second graduated rotating element (120), and a transmission mechanism (130) between the first and second rotating elements. The first rotating element includes first reliefs (119A) and second reliefs (119B), which alternately cooperate with the transmission mechanism (130) so as to rotate the second rotating element by one graduation each time the first rotating element completes one full revolution. The graduation of the second rotating element comprises at least two identical adjacent digits.The dose counter (100) includes a priming cover (150), which is arranged to obscure a viewing window (302) for the graduations until the second rotating element (120) has been driven into rotation at least once. See Figure 4 for abbreviations.

The present invention relates to the field of transmission wire fatigue life assessment, specifically a method for testing the life of a wire transmission system for a minimally invasive surgical instrument (MISI). The method is based on the characteristic that the transmission wire to be tested breaks after bending fatigue, resulting in a reduction in the cross-sectional area of ​​the transmission wire to be tested, a change in resistance, and a change in the current in the circuit. By constructing a measurement circuit for the transmission wire to be tested and detecting the cross-sectional area of ​​the transmission wire to be tested within the measurement circuit, the number of broken wires in the transmission wire to be tested is estimated, thereby implementing a life test for the wire transmission system of a minimally invasive surgical instrument. Compared to traditional manual counting methods, the present invention automates the broken wire calculation process and life test process, and has lower cost and more accurate calculation accuracy. The method is suitable for bending fatigue life testing of pulley transmission systems using small-diameter (less than 1 mm) transmission wires in medical devices.

The present application relates to flow detection device technical field, especially to a spur gear liquid flow detection device, the spur gear liquid flow detection device includes: gear assembly, including meshing transmission gear piece, the end face of gear piece is provided with magnet assembly, in the non-axis position of gear piece under the rotating state, the magnetic field formed by magnet assembly has the magnetic induction intensity of change; Detection assembly is arranged correspondingly with magnet assembly, to detect the magnetic induction intensity change of gear assembly under the rotating state, to obtain the accurate rotation number and / or angle of gear piece, when the liquid pushes the gear to rotate, the magnet assembly rotates with the gear, so that the magnetic induction intensity detected by the detection assembly is changed, to accurately judge the rotation condition of the gear, avoid the occurrence of the situation of missing detection, so as to improve the accuracy and accuracy of the spur gear liquid flow detection device for liquid flow detection.

The invention provides a display screen testing system and a display screen testing method.The display screen testing system comprises a display unit, a driving unit, a photoelectric detection unit and a counting unit, the display unit is provided with a display surface, the driving unit drives the display unit, and the photoelectric detection unit detects the display surface of the display unit; the counting unit is electrically connected with the photoelectric detection unit, when the driving unit drives the display unit to circularly start in a first time period, the photoelectric detection unit detects that the display surface is lightened and transmits a lightening signal to the counting unit, and the counting unit counts to obtain a first group of times; when the driving unit circularly drives the display unit to be turned off in a first time period, the photoelectric detection unit detects that the display surface is turned off and transmits a turn-off signal to the counting unit, the technical unit counts to obtain a second group of times, and whether the display function of the display unit is normal is judged according to whether the first group of times is equal to the second group of times.

The present application discloses a connector assembly capable of displaying the number of pluggings / unpluggings, comprising a female connector, a male connector, a driving mechanism, a one-way mechanism, and a display mechanism. According to the connector assembly of the present application, when the male connector is in insertion fit with the female connector, the driving mechanism drives a gear to rotate in a preset direction, by means of the one-way mechanism, the gear is prevented from reversely rotating when the male connector is separated from the female connector, so that the gear will rotate by a certain angle each time when the plugging / unplugging of the connector assembly of the present application is completed, and the number of pluggings / unpluggings of the connector assembly is displayed by the display mechanism arranged on the gear, so that the number of pluggings / unpluggings of the connector assembly can be directly read.

The present invention provides an electric stapler that records the number of surgeries by changing the color of an indicator light. The electric stapler includes a counting switch trigger mechanism, which includes a firing generator, a firing gear, a firing rack, and a counting switch. The firing generator is tooth-engaged with the firing gear, the firing gear is engaged with the firing rack as a gear rack, the firing rack is in contact with the counting switch, and the counting switch is triggered by the firing rack. The present invention adds a counting and indicator light color-changing module based on the reciprocating motion of the firing component during the firing / retraction process. This module can record the number of times the electric stapler has fired / retracted, so that when the instrument is nearing the end of its service life, the indicator light will change color to alert the operator, thereby ensuring a good cutting and suturing effect and reducing the risk of medical accidents.

This application discloses an automatic optical axis number identification device and method for a light curtain sensor. The device includes a main controller; a detection signal line connected to the detection port of the main controller and connected to a first reference potential through a first resistor; multiple cascaded axis control modules; each axis control module includes a shift unit, the clock terminal of each shift unit is connected to the main controller, the signal input terminal of the first-stage axis control module is connected to the main controller, the signal output terminal of the preceding-stage axis control module is connected to the signal input terminal of the following-stage axis control module; only the signal output terminal of the last-stage axis control module is connected to the detection signal line through an identification element. The main controller sends a valid level signal to the first-stage axis control module and outputs shift clock pulses to propagate the signal step by step. The number of optical axes is determined based on the number of clock pulses when the level of the detection port flips. This application achieves automatic optical axis number identification through cascaded shifting and a final-stage feedback mechanism, eliminating the need for manual configuration and effectively improving production efficiency and product reliability.

The present invention discloses a multi-laser gun simulation training system based on time marking and its control method, including a scene image device, a main console, a time synchronization controller mechanism, a plurality of laser guns, and an image acquisition device. It is implemented by using a time signal as an identifier. The time synchronization controller mechanism periodically sends a master control time signal for forced synchronization to the plurality of laser guns and the image acquisition device, so that the plurality of laser guns and the image acquisition device are synchronized with their own time timers, enabling the time synchronization controller mechanism, the plurality of laser guns, and the image acquisition device to be in a time system. It overcomes the drawbacks in the prior art, realizes that for multiple laser guns, only one image acquisition device is needed to complete the acquisition and recognition of shooting information, saves the cost of equipment, and can flexibly adjust the number of laser guns, increasing the convenience of use. Moreover, it can accurately and quickly perform information acquisition and recognition, giving users a better shooting experience.

A method and apparatus for counting belted or bulk ammunition rounds. The modular ammunition counter includes a detachable electronics assembly, an ammunition guide for receiving the ammunition rounds, and a sensor module. The electronics assembly is configured to count the number of ammunition rounds that pass through the coupled ammunition guide. This method of ammunition round counting offers a significant improvement in speed and accuracy compared to manually counting the ammunition rounds by hand.

The invention is suitable for the technical field of fault monitoring, and provides a fault monitoring circuit, a chip and a vehicle. The fault monitoring circuit comprises a control module, a counting module and a comparison module. The control module is electrically connected with the counting module and the comparison module. The counting module is used for acquiring a to-be-measured clock signal and a reference clock signal according to the control signal output by the control module, counting according to the to-be-measured clock signal and the reference clock signal within a preset time period to obtain a count value, and when the to-be-measured clock signal and the reference clock signal meet a preset condition at the same moment, starting the counting module; the counting module carries out one-time counting. The control module outputs a reference value according to the reference clock signal. The comparison module outputs an alarm signal when the count value is smaller than the reference value. According to the fault monitoring circuit provided by the embodiment of the invention, real-time monitoring on the clock signal to be detected can be realized. The fault of the to-be-detected clock signal is determined by reading the alarm signal, so that the monitoring response speed of the to-be-detected clock signal when the fault occurs is obviously improved.

The invention discloses a stored insect killing agent effect evaluation device and method capable of achieving dynamic separation and automatic counting, the evaluation device comprises a base, a vibrator is installed on the base, a killing bin is installed on the vibrator through a connecting frame, a live insect killing cavity is formed in an inner cavity of the killing bin, and an attractant box is arranged at the top of the killing bin; the bottom end of the killing bin is detachably connected with the live insect bin or the dead insect bin; a live insect counting module is detachably arranged in a live insect killing cavity of the live insect bin, a plurality of vertically-through live insect channels are formed in the live insect counting module, and a counter is arranged at each live insect channel; a weight counter is arranged on the bottom wall of a dead insect collecting cavity of the dead insect bin, a tray is placed on the weight counter, a funnel is detachably arranged on the upper portion of the dead insect collecting cavity, a screen is arranged on the funnel, and dead insects screened by the screen are guided into the tray below through the funnel. The method has the advantage that the efficiency and the accuracy of the effect evaluation experiment of the stored pest killing agent are improved.

The application discloses a cam control method and device, equipment and medium, and relates to the field of mechanical automation control. The method is applied to an FPGA, and comprises the following steps: extracting a target parameter for representing the length of a target segment sub-path from a cam table, and updating a first counter for counting the displacement of a main shaft and a second counter for counting the displacement of a slave shaft; determining the target pulse number required to be output by the slave shaft by using the counting ratio relationship between the current two counters; if the main shaft has pulse input, updating the first counter, controlling the slave shaft to output the target pulse number of pulses, and updating the second counter; judging whether the pulse processing for the target parameter is completed based on the current counting of the two counters; if not, jumping to the step of determining the target pulse number required to be output by the slave shaft by using the counting ratio relationship between the current first counter and the current second counter. The application can reduce the resource consumption of the FPGA, and enable the slave shaft to quickly respond to the input of the main shaft.

The invention relates to a method of synchronizing a receiver initialization vector with a sender initialization vector when successively transmitting encrypted data packets from a sender to a receiver, wherein a key and an initialization vector are generated. The sender forms a sender sub-counter from the lowest M bits of a counter of the sender initialization vector, encrypts a message according to an encryption method, generates a data packet from the encrypted message and the sender sub-counter and transmits it, and increments the counter of the sender initialization vector. The receiver receives the data packet, extracts the sender sub-counter therefrom, forms a receiver sub-counter from the lowest M bits of a counter of the receiver initialization vector, replaces the lowest M bits of the counter of the receiver initialization vector by the sender sub-counter if the comparison results in the sender sub-counter being higher than the receiver sub-counter, and repeats the replacement and the incrementing of the counter value of the receiver initialization vector by 2 if the comparison results in the opposite, decrypts the message, and then increments the counter of the receiver initialization vector. M , decrypts the message, and then increments the counter of the receiver initialization vector.

The utility model discloses a fault frequency counting mechanism for ignition system testing, which belongs to the field of ignition fault testing and is characterized by comprising a body mechanism, a connecting mechanism is mounted at the outer end of the body mechanism, a detection mechanism is mounted at the upper end of the body mechanism, and the connecting mechanism comprises an assembly ring. The assembling ring is located at the outer end of the body mechanism, the inner end of the assembling ring is slidably connected with symmetrically-distributed clamping blocks, the clamping blocks are located at the outer end of the body mechanism, and clamping grooves are formed in the outer ends of the clamping blocks; by arranging the clamping blocks and the positioning rods, when the ignition device needs to be detached from the tester, only the pair of positioning rods needs to be pulled, the positioning blocks release positioning limitation with the clamping blocks, then the clamping blocks are taken out from the interior of the assembly ring at the outer end of the tester, and the ignition device and the tester can be conveniently detached and installed; and the mechanism is more convenient to count and test the number of faults.